Abstract: An actuator control method and an actuator control device that perform energy evaluation control that compares kinetic energy of a controlled object and work that can be done by braking and switches driving to braking at a point of time at which the kinetic energy of the controlled object and the work become equal, and also repeatedly makes a comparison between the kinetic energy of the controlled object and the work at each preset time, as a new control method that replaces PID control in mechanics for effectively utilizing vehicle energy to improve vehicle fuel consumption and control methods thereof, a control result is obtained by a simpler method.

Abstract: A control system for use with a plurality of wind turbines includes a processor and a memory device coupled to the processor. The memory device is configured to store a plurality of program modules that, when executed by the processor, configure the processor to receive data representative of a power generation of a first wind turbine of the plurality of wind turbines, and determine an expected power generation of a second wind turbine of the plurality of wind turbines based on the power generation of the first wind turbine.

Abstract: Described herein are methods and systems for chamber matching in a manufacturing facility. A method may include receiving a first chamber recipe advice for a first chamber and a second chamber recipe advice for a second chamber. The chamber recipe advices describe a set of tunable inputs and a set of outputs for a process. The method may further include adjusting at least one of the set of first chamber input parameters or the set of second chamber input parameters and at least one of the set of first chamber output parameters or the set of second chamber output parameters to substantially match the first and second chamber recipe advices.

Abstract: Systems and methods for automated fault detection in a building management system are shown and described. The systems and methods further involve organizing the data set into bins, each bin containing a plurality of the observed points for the variable of the building management system. The systems and methods further involve calculating, for each bin, a target parameter and an estimator of scale for the observed points. The systems and methods further involve detecting, for each bin, an outlier of the building management system by comparing a data point of the bin to the calculated target parameter and estimator of scale for the bin.

Abstract: An automation control and monitoring system is provided that includes chainable plug-ins that may work in combination with one another to transform data or generate events. Resources of the automation control and monitoring system may be polymorphically defined based upon a generalized object model. The chainable plug-ins may be chained to make use of and/or affect a resource of any type.

Abstract: A control module suitable for controlling a manual switch type automatic drip coffeemaker (ADC) enabling the addition of fully automatic brewing start, programmable brewing strengths, programmable heater levels for keeping the coffee warm after the brewing cycle is complete, programmable shut-off time periods, automatic cleaning detector, automatic self cleaning cycle with automatic shut-off, and programmable twelve hour AM/PM or twenty-four hour time format. The control module contains a micro-controller, application specific firmware, a keypad, a liquid crystal display, a control relay, a current or a voltage sensor, indicator LED's, a piezo audible alarm, and power supply components.

Abstract: External programming of at least one processor (30) of a LED driver (10). In a normal operation mode a first control input (22B/22C) of the LED driver (10) may be provided to a first processor input of the processor and a second control input (22B/22C) of the LED driver may be provided to a second processor input of the processor (30). In a programming mode the first and second control inputs (22B, 22C) may be provided to programming inputs of the processor (30) to thereby enable programming of the processor (30) via the first and second control inputs (22B, 22C).

Abstract: There is provided a control apparatus for controlling a device having a movable unit movable by a plurality of drive shafts. The control apparatus includes: target trajectory generation means for generating a target trajectory for a movement section defined by a start point and an end point; remaining distance estimation means for estimating a remaining distance along the target trajectory from a current position to the end point; acceleration calculation means for calculating an acceleration involved in varying a current movement velocity of the movable unit to a target velocity corresponding to a movement velocity to be satisfied by the movable unit at the end point of the target trajectory, such that a distance that the movable unit will have traveled substantially matches the remaining distance; and movement velocity updating means for calculating a new target movement velocity value by correcting the current movement velocity with the acceleration calculated.

Abstract: A method for operating a remote device in relation to a programming environment of a programmable metrology system is provided. The metrology system may comprise an accessory interface portion comprising an accessory communication portion, and a user interface comprising a programming environment having part program instruction representation representations in an editing window, including an active “current instruction” representation. The method provides a connection between the remote device and the programming environment, which outputs current instruction identifiers for current instruction representations. The remote device receives a current instruction identifier and operates responsive to the that current instruction identifier to display a current instruction reference information user interface portion configured such that it is specifically related to a generic instruction type corresponding to the current instruction representation.

Abstract: A method for editing a position of a selected design element in a constraint network. The method includes receiving the selected design element in a geometric model from a user, searching a database for a positioning group related to the selected design element, and adding the selected design element and the positioning group related to the selected design element into a work collection. The method then includes searching the database a second time for reference positioning groups and reference design elements referenced by constraints of the positioning group and design elements in the work collection and adding the reference positioning groups and the reference design elements discovered by the second searching into a context collection. The method then further includes loading all the constraints for the positioning groups and the design elements which were added to the work collection.

Abstract: A fabrication system is disclosed for use in joining two components of a work piece. The fabrication system may have a mount configured to hold the work piece with a void to be filled with material. The fabrication system may also have a scanner configured to capture at least one image of the void, a robotic fabrication device movable relative to the mount, and a controller in communication with the scanner and the robotic fabrication device. The controller may be configured to generate a model of the void based on the at least one image, and to slice the model into at least one layer. The controller may also be configured to develop a tool path for each of the at least one layer, and to cause the robotic fabrication device to deposit material within the void based on the tool path.

Abstract: In a numerical controller for controlling acceleration and deceleration on the basis of a stopping distance, a stopping distance calculation module calculates an acceleration for stopping a drive axis with a probe on the basis of a distance that the drive axis with the probe moves from a current velocity to a stopped state when stopping at a maximum acceleration at which a machine tool does not receive shock, and on the basis of a stopping distance at which the probe is not be damaged. An acceleration and deceleration control module calculates a velocity of the drive axis for each of interpolation periods on the basis of the acceleration calculated by the stopping distance calculation module. An interpolating module outputs data that controls the drive axis, on the basis of the interpolation data and the velocity of the drive axis calculated by the acceleration and deceleration control module.

Abstract: Embodiments are directed towards enabling users to customize data collection and analysis. A collection computer may automatically detect and dynamically update each of a plurality of sensors that may be currently providing real-time data regarding at least one characteristic of a machine. At least one sensor may be selected for local storage of its corresponding real-time data at the collection computer. And at least one sensor may be selected for remote storage of its corresponding real-time data by a server computer. A template may be employed to remotely display at least one characteristic of the machine based on current real-time data provided by at least one of the sensors identified by the template. In response to the user selecting at least one sensor for remote display, the template may be modified to include the remote display of the at least one sensor's corresponding current real-time data.

Abstract: A method for order prioritization includes calculating a cycle time for a product order of a plurality of product orders using an artificial neural network, determining a first order priority of the product order based on a priority index using an analytic hierarchy process, determining a second order priority of the product order based on event based simulation model, and determining a shipping date for the product order based on the second order priority. The artificial neural network calculates the cycle time based upon product order type and a plurality of component counts. The analytic hierarchy process determines a first order priority based upon a plurality of product order attributes. The simulation model determines a second order priority and completion time based upon the first order priority, product model, product type, a plurality of component counts, manufacturing capacity and inventory data, and production time data for historical product orders.

Abstract: A high fidelity distributed plant simulation technique includes a plurality of separate simulation modules that may be stored and executed separately in different computing devices. The simulation modules communicate directly with one another to perform accurate simulation of a plant, without requiring a centralized coordinator to coordinate the operation of the simulation system. In particular, numerous simulation modules are created, with each simulation module including a model of an associated plant element and being stored in different drops of a computer network to perform distributed simulation of a plant or a portion of a plant. At least some of the simulation modules, when executing, perform mass flow balances taking into account process variables associated with adjacent simulation modules to thereby assure pressure, temperature and flow balancing.

Abstract: A method for transporting a group of semiconductor wafers and a manufacturing system are provided. A semiconductor processing facility is provided. The semiconductor processing facility includes a first destination, a second destination, and a transport system configured to transport a group of semiconductor wafers from the first destination to the second destination. Real time information is collected, where the real time information includes information on a current process executing in the semiconductor processing facility and information on a transfer time. The information on the transfer time includes data that indicates an amount of time required to transport the group of semiconductor wafers from the first destination to the second destination. A request is issued to the transport system to effect the transportation of the group of semiconductor wafers from the first destination to the second destination. A timing of the request is based on the first and second data.

Abstract: A method for performing computerized automated root cause analysis for a complex product, such as a turbine, and computer-readable medium encoded with programming instructions for performing such a root cause analysis are provided. The method may include: monitoring the product; detecting a product misbehavior; forming a misbehavior pattern with timeslots of normal operation and timeslots of misbehavior operation; comparing timeslots of the misbehavior pattern to corresponding timeslots of channels of information in at least one database relating to the product; measuring how close the misbehavior pattern numerically fits to the information; and automatically identifying a best numerical fit.

Abstract: A flight management system architecture with two separate modules is proposed. In the core module, generic functionalities relative to the flight management of the aircraft are implemented. In the supplementary module, supplementary functions are implemented. The supplementary functionalities include functionalities specific to an entity to which the aircraft belongs such as the specific aircraft model, a family of airdraft, a company, an alliance, and so on. The flight management system also includes a message exchange interface in which enables the core and supplementary modules to exchanges messages with each other. The core and supplementary modules includes corresponding core module and supplementary module interfacing functionalities that respectively interface with generic and specific man-machine interfaces.

Abstract: An autonomous vehicle includes a sensor interface coupled to a gyroscope system, a wireless communication interface, a processor, and memory. The memory has instructions stored thereon that, when executed by the processor, cause the autonomous vehicle to establish a plurality of wireless communication links with two or more vehicles in a group including the autonomous vehicle and the two or more vehicles. A signal strength of each of the wireless communication links is monitored to determine an observed signal strength of each of the wireless communication links. A desired position of the autonomous vehicle is determined based on an expected signal strength of each of the wireless communication links. A position adjustment of the autonomous vehicle is initiated based on a difference between the expected signal strength and the observed signal strength in combination with data from the gyroscope system.

Abstract: In a vehicle control device that is configured to be capable of switching from an automatic travel of the vehicle to manual travel by a driver, a manual driving adaptation degree of a driver during an automatic travel is calculated based on a driver state (S16), a notification timing is set such that the notification timing is earlier as the manual driving adaptation degree becomes lower (S18), and the automatic travel end notification is given to the driver at the set notification timing (S20).

Abstract: A system with a first computer unit and with a second computer unit, wherein the first computer unit comprises a first interface to enable connection to at least one sensor and to at least one actuator, wherein the second computer unit comprises a second interface to enable connection to at least one sensor and to at least one actuator, wherein the first and the second computer units can be connected to each other by means of a further interface, wherein the actuator comprises an interface, wherein depending on the first or on the second operating state the interface determines whether a control command for a driving function is adopted by the first or the second computer unit, so that in the first operating state only the first computer unit can activate the actuator and in a second operating state only the second computer unit can activate the actuator.

Abstract: The invention relates to a device for controlling the braking and/or steering and/or acceleration in a motor vehicle, wherein the device has a number of different sensor components, two diverse sensor fusion components, a man/machine interface component and a preferably intelligent actuator controller component, wherein each of these components constitutes a fault-containment unit and has a TTEthernet communications interface, and wherein all components are connected to a central TTEthernet message distribution unit, and wherein the components communicate with one another exclusively with use of standardized Ethernet messages, and wherein a diagnosis unit for time-correct monitoring of the exchanged messages can be connected to the TTEthernet message distribution unit.

Abstract: Various embodiments relate generally to autonomous vehicles and associated mechanical, electrical and electronic hardware, computer software and systems, and wired and wireless network communications to provide an autonomous vehicle fleet as a service. In particular, a method may include monitoring a fleet of vehicles, at least one of which is configured to autonomously transit from a first geographic region to a second geographic region, detecting data indicating an event associated with the vehicle having a calculated confidence level, receiving data representing a subset of candidate trajectories responsive to detecting the event, which is associated with a planned path for the vehicle, identifying guidance data to select from one or more of the candidate trajectories as a guided trajectory, receiving data representing a selection of a candidate trajectory, and transmitting the selection of the candidate trajectory as of the guided trajectory to the vehicle.

Abstract: According to the embodiments described herein, a method for environmental based localization may include capturing an input image of a ceiling comprising a plurality of skylights. Features can be extracted from the input image. The features can be grouped into a plurality of feature groups such that each of the feature groups is associated with one of the skylights. Line segments can be extracted from the features of each feature group, automatically, with one or more processors executing a feature extraction algorithm on each feature group separately. At least two selected lines of the line segments of each feature groups can be selected. A centerline for each of the feature groups can be determined based at least in part upon the two selected lines. The center line of each of the feature groups can be associated with one of the skylights.

Abstract: A docking station (20) and a robot (22) for docking therein, include corresponding transmission parts. These transmission parts are for the transmission of energy, such as electricity, for recharging the robot (22), and/or signals, for operating the robot (22), the energy and/or signals passing between the docking station and the robot (22). The docking station (20) and robot (22) are such that the docking of the robot (22) in the docking station (20) is at a horizontal orientation, as the transmission part on the robot (22) includes laterally protruding docking contacts that contact corresponding laterally oriented contact arms of the docking station (20).

Abstract: Techniques are provided for discovery and monitoring of an environment using a plurality of robots. A plurality of robots navigate an environment by determining a navigation buffer for each of the robots; and allowing each of the robots to navigate within the environment while maintaining a substantially minimum distance from other robots, wherein the substantially minimum distance corresponds to the navigation buffer, and wherein a size of each of the navigation buffers is reduced over time based on a percentage of the environment that remains to be navigated. The robots can also navigate an environment by obtaining a discretization of the environment to a plurality of discrete regions; and determining a next unvisited discrete region for one of the plurality of robots to explore in the exemplary environment using a breadth-first search. The plurality of discrete regions can be, for example, a plurality of real or virtual tiles.

Abstract: Provided are a method and a control apparatus for cooperative cleaning using multiple cleaning robots, including monitoring an overall cleaning condition of an extensive space and automatically assigning multiple cleaning robots to a space required to be cleaned, and when a cleaning area is fixed based on a cooperative cleaning method, data on an amount of garbage generated from the cleaning area or a cleaning condition of the cleaning area may be accumulated to facilitate easier management of the cleaning.

Abstract: A system for controlling a fleet of unmanned vehicles includes a plurality of unmanned vehicles connected to a computing device. The computing device stores a dynamic attribute and a static attribute respective to each of the plurality of unmanned vehicles. The computing device is configured to: receive a task request including (i) an item identifier of an item, (ii) an action type defining an action to be performed respective to the item, and (iii) a location identifier of a location at which to perform the action; responsive to receiving the request, retrieve the stored dynamic attributes and static attributes; based on a comparison of the task request with the dynamic attributes and the static attributes, select one of the plurality of unmanned vehicles; and transmit, via the network, a command to the selected unmanned vehicle to perform the action respective to the item at the location.

Abstract: A self-propelled apparatus includes a main body and an anti-drop system. The main body includes an aperture located at a bottom portion thereof and communicative with an interior thereof. The anti-drop system located inside the main body respective to the aperture includes an infrared detection module and an angle-limiting unit electrically coupled with the infrared detection module. The infrared detection module detects a distance between the bottom portion and a first detection surface. The infrared detection module includes an infrared emitting unit and an infrared receiving unit. The infrared emitting unit emits an infrared signal to the first detection surface. The infrared signal produces a first boundary signal and a second boundary signal after the infrared signal passes through the angle-limiting unit. The infrared receiving unit receives a reflected signal of the first boundary signal with respect to the first detection surface.

Abstract: A motor vehicle has a tailgate arrangement consisting of a pivotable lower tailgate and a pivotable upper tailgate, the upper tailgate reaching partially over the lower tailgate in an overlapping region. A sensor system detects the respectively current position of both tailgates in the tailgate arrangement. The sensor system is connected to an electronic control unit for motorized actuation of both tailgates. The control unit has a functional module and in the process prevents a collision of the two tailgates in the overlapping region with consideration of their respectively current positions. The functional module is programmed such that, during closing of both tailgates starting from their respective start positions, their respective moving speed and/or their respective moving start are controlled in such a way that the upper tailgate passes a defined anti-collision position in the closing direction only when the lower tailgate is completely closed.

Abstract: An apparatus for controlling an actuator in a camera module is provided. The apparatus includes a position controller for producing a control voltage to move a lens of the camera module, a hall sensor for detecting an amount of change in magnetic lines of force generated by a magnet as a hall voltage, a voice coil motor for moving the lens according to a current applied thereto, and a current controller for using a voltage applied to the voice coil motor to detect an interference voltage created by the current applied to the voice coil motor, for generating an interference-eliminated hall voltage by removing the interference voltage from the hall voltage, and for controlling the current applied to the voice coil motor based on the control voltage and the interference-eliminated hall voltage.

Abstract: A system and method are provided for in-line processes of blending butane into gasoline streams, and for blending butane into a gasoline stream at any point along a petroleum pipeline. The invention additionally provides a method for measuring the vapor pressure and vapor to liquid ratio of the gasoline, both upstream and downstream of the blending operation, as well as the sulfur content of the butane entering the blending operation. The blending operation can be controlled to ensure that the blended gasoline meets EPA requirements for vapor pressure and sulfur content of gasoline. The invention further provides a method for accessing and monitoring the operation off-site.

Abstract: A poppet valve is provided with a seat portion which has a conical inner peripheral surface with a center axis, and a conical portion which is displaced along the center axis inside the seat portion, forms a flow passage having an annular cross-section between the conical portion and the seat portion and is supported at a position concentric with the seat portion. An effect of rectifying fluid flowing in the flow passage is thereby obtained and the generation of noise is prevented.

Abstract: A building system server includes a processing device executing a server program. The processing device receives a request from a remote device for information regarding a building control system. The processing device provides, responsive at least in part to the request for information, at least one software program. The remote device executes the software program to: request and receive background graphic data corresponding to the request; request and receive first data identifying at least one variable control, and a format of the at least one variable control; request and receive second data containing a building control value corresponding to the at least one variable control; and cause a compatible web browser to build a graphics page based on the graphic data, first data and second data. The processing device provides the graphics page to the remote device.

Abstract: In the case where selection of a device icon representing an air conditioner among one or more target devices is sensed in a region corresponding to one room on a floor plan, an operation screen for operating the air conditioner corresponding to the selected device icon, is displayed on a display screen. This operation screen includes an image representing an air flow direction of air output from the air conditioner.

Abstract: A thermostat may include a proximity sensor and a temperature sensor. The thermostat may also include a sensor mount assembly containing the proximity sensor, the temperature sensor, and a first alignment feature. The thermostat may additionally include a lens assembly having a first area, a second area, and a second alignment feature, where the second area includes a Fresnel lens, and the first area is thinner than the second area. The thermostat may further include a front cover where the outward-facing surface of the lens assembly is shaped to continuously conform to a curvature of the front cover.

Abstract: To produce food, plants rely on three main ingredients, sun energy, water, and carbon dioxide, the cost of which is zero. To address the food and energy security concerns, two mysteries are resolved for the first time: i)—Photosynthetic efficiency is known to be very low, the scientific full accounting for all the losses is lacking; ii)—Fanning is known to be profitable, yet accounting for the zero cost of solar energy is not understood. This inventor resolved them by the derivation of a simple mathematical law, AgriPAL, comprising explicitly, a new solar gain factor >200× which offset the low efficiency of ˜0.005. In the absence of the sun, the newly found solar gain goes to 1. Since SanSSoil enables harnessing the third dimension, the sky is the limit. Water saving of >100 is realized through the controlled enclosed environment.

Abstract: A voltage adjustment device, a voltage adjusting method and a power control system for a distribution system are provided, in which the voltage adjustment device and a static var compensator are appropriately operated in a coordinated manner and the sustention of voltage and the enhancement of the operation efficiency are attained. A voltage adjustment device for a distribution system is installed in the distribution system including a static var compensator on an end side and controls a secondary voltage to be within a predetermined limit value by adjusting a tap position.

Abstract: A DC-DC converter includes a high-side circuit supplied with a power supply voltage and a first internal reference voltage generated by a first regulator. The high-side circuit provides a current to an inductor, which is used for generating an output voltage. The first and second regulators each generate respective internal reference voltages. The second internal reference voltage is provided to a signal processing module, which controls the high side circuit so that the output voltage of the DC-DC converter corresponds to regulated target voltage level. The first and second regulators include a differential circuit comparing voltages and generating a corresponding comparison signal, a transistor for generating the internal reference voltage according to a gate voltage applied to its gate, and a circuit to change the gate voltage to reduce a signal amplitude of the comparison signal.

Abstract: A semiconductor integrated circuit for a regulator, including: a control transistor; a control circuit; and a discharge circuit, wherein the discharge circuit includes: a constant current source circuit; a reference voltage generating circuit; a voltage comparator circuit; and a current amplification circuit, and wherein the control circuit is configured to control the control transistor in response to the control signal, and the discharge circuit is configured to operate the discharge transistor by the amplified current amplified by the current amplification circuit.

Abstract: An integrated circuit may include a receiver suitable for comparing voltage levels of an external signal and a reference voltage with each other, and generating an internal signal, an adjustment code generation unit suitable for detecting a duty of the internal signal and generating an adjustment code of one or more bits, and a voltage adjustment unit suitable for adjusting the voltage level of the reference voltage in response to the adjustment code.

Abstract: A voltage regulator for outputting a voltage having a predetermined relationship with a reference voltage, the voltage regulator includes a driver circuit configured to generate the output voltage, a feedback loop configured to feed back a sensed voltage that is representative of the output voltage to a control unit and the control unit, configured to compare the sensed voltage with the reference voltage and, only if the difference between them exceeds a predetermined threshold, control the driver circuit to adjust the output voltage.

Abstract: A multi-phase switched-mode converter has a control circuit configured to receive a shed threshold signal indicating that the total output current has fallen below a total current threshold level. The control circuit further includes slave phase shedding switches that have a common switching pole connected to a current share amplifier of each slave power stage, a first select pole is connected to a phase target current level, and a second select pole is connected to a phase zero target current level. A control terminal is connects the phase zero target current signal to each slave power stage to decreases their output currents to approximately a zero level. When the output current approaches the zero level, the slave power stages are deactivated. A panic circuit activates the slave power stages when the load current increases precipitously.

Abstract: A computer system includes a power supply unit providing at least one first supply voltage for operation of the computer system, a system board has at least one first power supply line that distributes the at least one first supply voltage; at least one processor arranged on the system board and coupled to the first power supply line that executes program code of user programs; a system monitoring module arranged on the system board having a microcontroller that executes program code for remote maintenance; at least one network interface coupled to the system monitoring module; and at least one splitter, coupled to the network interface that taps off a remote feed voltage provided via the network interface and feeds in a second supply voltage into at least one second power supply line of the system board, the second power supply line being coupled to the system monitoring module.

Abstract: In formulating of a power generation operation schedule to a power grid network including multiple power plants and transformer stations, and, multiple batteries installed in association therewith, an operation planning system stores in advance power generation basic unit information of the power plant, and derivation information of the stored energy in the battery. Power generation basic unit information of the battery where power generation basic unit of the stored energy is added is set based on the power generation basic unit information of the power plant and the derivation information of the stored energy. While selecting a power generation facility from the power plants and the batteries in an order of a smaller value indicated by the power generation basic unit information, the power generation quantity of the selected power generation facility is added to a total power generation quantity until the total power generation quantity matches a demand quantity.

Abstract: One aspect is a method that includes applying a plurality of incrementally varying voltage targets to a plurality of power phase converters operating in parallel between a source voltage rail and a load voltage rail. A phase temperature of each of the power phase converters is monitored. The phase temperature of each of the power phase converters is compared to a thermal adjustment limit. One or more of the power phase converters are adjusted to reduce an associated output current based on determining that at least one of the power phase converters exceeds the thermal adjustment limit. Power phase converter adjustments can be performed in a balanced manner such that a net sum voltage at the load voltage rail is substantially unchanged after the adjustments.

Abstract: An integrated circuit is provided with a bandgap voltage reference circuit having a bandgap reference voltage output. A bandgap failure detection circuit is coupled to the bandgap reference voltage output. The bandgap failure detection forms a model value of the reference voltage from a first time, compares a present value of the reference voltage at a second time to the model value; and asserts a bandgap fail signal to indicate when the present value is less than the model value by a threshold value. The integrated circuit is reset by the bandgap fail signal. The detection circuit may be operated from a failsafe voltage domain that also allows a critical circuit to complete a pending operation during a reset.

Abstract: A control system for a power converter includes a digital reference signal generator, a first proportional-integral (PI) controller, a second PI controller, and a diode. The digital reference signal generator is configured to operate in a maximum peak power tracking (MPPT) mode of operation and an output voltage control mode of operation. In the MPPT mode of operation, the digital reference signal generator is configured to receive an input voltage and an input current provided to the power converter and provide an input voltage reference signal based on the input voltage and the input current. In the output voltage control mode of operation, the digital reference signal generator is configured to provide a constant input voltage reference signal.

Abstract: A power supply has a switch converter, a circuit breaker, a storage inductor and a peak current controller, wherein a first shunt resistor is arranged in a positive cable, a first operational amplifier is connected the first shunt resistor to detect a voltage drop across the first shunt resistor, an auxiliary measuring signal at the output of the first operational amplifier is reflected via a current mirror to ground, a second operational amplifier is connected to the second shunt resistor for impedance amplification such that a DC measuring signal is present at the output of the second operational amplifier, an RC element having a resistor and capacitor is connected to an inductor, the RC element being configured such that an AC measuring signal at the output of the RC element reproduces a current through the storage inductor, and where the AC measuring signal is added to the DC measuring signal.

Abstract: A trans-conductance regulation circuit, a trans-conductance error amplifier module and a power converter. The trans-conductance regulation circuit provides a bias current at least partially based on an output voltage of the power converter. The bias current is sent to bias a trans-conductance operational amplifier in the trans-conductance error amplifier module so that a trans-conductance of the trans-conductance operational amplifier is direct proportional to the output voltage of the power converter. The power converter regulates the output voltage based on a negative feedback loop comprising the trans-conductance error amplifier module. The trans-conductance error amplifier module may help to maintain a band width of the negative feedback loop substantially stable and immune to variations in the output voltage.