Abstract: An apparatus for wireless charging using radio frequency (RF) energy includes a first charger portion having first and second charging areas. The first and second charging areas are located in a common plane, each having at least one coil for wirelessly charging a charge-receiving device placed in proximity thereto. The coils include respective windings, which are wound in opposing directions, each coil being connected in series, each coil configured to charge at least one charge-receiving device. A second charger portion has a third charging area having at least one coil including a winding for wirelessly charging a charge-receiving device placed in proximity to the third charging area, the coil in the third charging area being connected in series with the coils in the first and second charging areas, the third charging area located in a plane that is orthogonal to the plane of the first and second charging areas.

Abstract: A master beam home module U-form energy distributor can wirelessly recharge all electronic devices within a given range. The energy distributor can include a hollow center with a single U-form Wi-Fi/energy distributor and a disc base. The device can include a company logo, if desire, on the base and a power level indicator. The device can have a port for a power cord and a telephone, CAT-5 or USB type jack, for example, for Wi-Fi/energy input. The master beam home module U-form energy distributor can generate a sufficient amount of energy for homes. To achieve this energy transmission, there can be about ten power output transmitters per side of each of the two U-arms of the U-form energy distributor.

Abstract: This electrical power-receiving apparatus makes it possible to suppress a decline in power supply efficiency in a variety of different circumstances while avoiding an increase in circuit scale. This apparatus comprises an impedance control unit (307) for sequentially switching through any one of a plurality of charging devices in a charging device group (310), as candidate charging devices for a supply destination to which electrical power is to be supplied. The impedance control unit (307) also selects from the candidates a charging device to which electrical power is actually supplied, on the basis of the difference between the impedance of the charging device group (310) for each candidate and the impedance of an electrical power receiving antenna unit (301), and causes electrical power to be supplied to the selected charging device.

Abstract: An electric vehicle charging system is disclosed. More particularly, the system encompasses a load center having one or more electrical loads coupled thereto, electric vehicle supply equipment (EVSE) to charge an electric vehicle (EV), and a monitoring and limiting device (MLD) to monitor power or current usage of at least the one or more loads coupled to the load center, and adjust a charging level setting of the EVSE based upon the level of the usage. MLD apparatus and methods of charging a vehicle with electric vehicle supply equipment (EVSE) are provided, as are other aspects.

Abstract: An offline power supply includes a power supply circuit including a primary-side circuit for connecting to a power source, a secondary-side circuit for connecting to a load, and a transformer connecting the primary-side circuit and the secondary-side circuit. A switch operates to selectively connect the primary-side circuit to the power source. A trigger circuit is connected to the secondary-side circuit and has at least one input. The trigger circuit generates an output to selectively operate the switch based on the at least one input.

Abstract: A method for charging a rechargeable energy store (24), having the steps: coupling the rechargeable energy store (24) to a power supply line (10); ascertaining a piece of utilization information (34) regarding a capacity utilization of a tripping load of a circuit breaker (10) coupled to the power supply line (12); and/or ascertaining a separate piece of charging information (41) regarding a power and/or a time remaining of a separate charging current supplied to a further energy store (30) by the power supply line (12); setting at least one selection variable (48) regarding a time characteristic of a setpoint current intensity of a setpoint charging current supplied by the power supply line (12) to the rechargeable energy store (24), in view of the ascertained utilization information (24) and/or the ascertained, separate charging information (41); and applying a charging current from the power supply line (12) to the rechargeable energy store (24) in view of the at least one set selection variable (48).

Abstract: A method and system provide for the cooperative charging of electric vehicles. By using power line communications, chargers of the electric vehicles who are serviced by the same distribution transformer can form self-contained local area networks due to the nature of power line communications (PLCs). Alternatively, or in addition to the PLCs, other communication networks, such as the Internet and local area networks, may be used as part of the communications infrastructure for the chargers. After the chargers of the electric vehicles are coupled to one another through power line communications or traditional communications networks, they can form a logical token ring network. According to this token ring network, a predetermined number of tokens can be assigned within the token ring network for permitting chargers with tokens to charge respective electric vehicles while chargers without tokens must wait until they receive a token to initiate charging.

Abstract: Networked electric vehicle charging stations for charging electric vehicles are coupled with an electric vehicle charging station network server that performs authorization for charging session requests while the communication connection between the charging stations and the server are operating correctly. When the communication connection is not operating correctly, the networked electric vehicle charging stations enter into a local authorization mode to perform a local authorization process for incoming charging session requests.

Abstract: An apparatus, method and system are disclosed, relating to a dual-chemistry battery subsystem having different battery chemistries and performance properties, and relating to an algorithm of charging and discharging the battery subsystem. For an EV application, the battery subsystem is a tailored solution that combines two different battery configurations, a first battery configuration and a second battery configuration, to satisfy the unique needs of different driving modes and performance profiles of an EV, such as a typical workday commute versus an occasional extended range trip on the weekend. The present disclosure provides intelligent control and heuristics to maximize useful energy on a wide variety of battery applications.

Abstract: A charger for a plurality of rechargeable batteries includes a charger housing, a charging circuitry and a multi-sided charging arrangement. The charger housing defines a connecting side, and a plurality of charging sides. The charging circuitry is supported by the charger housing. The multi-sided charging arrangement includes a charger connector movably mounted to the connecting side of the housing. The multi-sided charging arrangement also electrically connects the charging circuitry to an external AC power source. The multi-sided charging arrangement further contains a plurality of charging slots indently formed on the charging sides of the charger housing respectively, wherein each of the charging slots is arranged to accommodate one of the rechargeable batteries so that each of the charging sides is arranged to be used for charging the rechargeable batteries by connecting the charger connector to the external AC power source.

Abstract: The present invention relates to a battery management system and a method thereof. The system includes a number of battery units connected in series, a DC/DC converter module and a controller controlling the DC/DC converter module to operate under one of at least two operation modes. The battery units include a given battery unit needed to be charged. When the DC/DC converter module operates in a first operation mode, the DC/DC converter module receives and reduces a total voltage of all the battery units and transmits the reduced voltage to charge the given battery unit. When the DC/DC converter module operates in a second operation mode, the DC/DC converter module receives and converts a cumulated voltage of part of the battery units and transmits the converted voltage to charge the given battery unit.

Abstract: In one aspect of the invention, a battery management system includes a plurality of battery units, a voltage sensing module for detecting a voltage of each battery unit, an active balancing module for reducing a total voltage of the battery units and transmitting the reduced total voltage to a given battery unit needed to be charged, a controller electrically connected with the voltage sensing module and the active balancing module, and signal buses electrically connected with the voltage sensing module and the active balancing module. The signal buses are controlled by the controller to selectively electrically connect with the positive pole and the negative pole of one of the battery units. The controller is adapted for obtaining voltage signals from the voltage sensing module, determining the given battery unit according to the obtained voltage signals, and controlling power provided by the active balancing module for charging the given battery unit.

Abstract: The method for operating a battery including several electrochemical cells and a battery control unit, includes collecting operating parameter data of the battery, transmitting the operating parameter data to the battery control unit, and determining whether a predefined relationship of the collected operating parameter data with regard to predefined operating parameter values exists for the battery, and carrying out normal operation of the battery if it does. If, it has been determined that the predefined relationship with respect to the predefined operating parameter values does not exist, a query is transmitted to a decision unit as to whether an exception operation of the battery is to be carried out, and a response to the query by the decision unit is determined. The response is then transmitted to the battery control unit, and an exception operation of the battery is performed by the battery control unit depending on the response.

Abstract: Provided are lithium sulfur battery cells that use water as an electrolyte solvent. In various embodiments the water solvent enhances one or more of the following cell attributes: energy density, power density and cycle life. Significant cost reduction can also be realized by using an aqueous electrolyte in combination with a sulfur cathode. For instance, in applications where cost per Watt-Hour (Wh) is paramount, such as grid storage and traction applications, the use of an aqueous electrolyte in combination with inexpensive sulfur as the cathode active material can be a key enabler for the utility and automotive industries, providing a cost effective and compact solution for load leveling, electric vehicles and renewable energy storage.

Abstract: An energy storage system configured to be coupled to at least one of a power generation system, a grid, or a load, the energy storage system including a battery system including at least one rack, the at least one rack including a rack controller, and a system controller configured to control a charging operation and a discharging operation of at least one battery on the at least one rack in accordance with a temperature of the at least one battery.

Abstract: A system for storing electrical energy having several storage cells, each storage cell having an operating voltage, an electrical load and a switching element connected in series with each storage cell. The switching element being closed when a threshold voltage of the storage cell is reached or exceeded. The system including at least one module having several storage cells and a control device. The control device being configured to assign a temperature to individual storage cells and a module voltage to the module. The control device being further configured to alter the threshold voltage of the individual storage cells dependant upon the assigned temperature whilst maintaining the module voltage.

Abstract: A desulfation device 10 drives its switching circuit 140 by using a pulse wave drive signal having a pulse width of 1.6 ?sec and a frequency of 20000 Hz. The switching circuit 140 is switched on to allow extraction of electric current of 500 mA from a battery via a resistor R1, while being switched off to stop the extraction of electric current. When the switching circuit 140 is switched off, a back electromotive force and a reverse current of 500 mA are supplied to the battery. The supplied reverse current is negative current in the form of spikes. This electric current acts on electrodes of the battery and thereby enables removal of sulfation on the electrodes of the battery, while reducing a temperature increase of the desulfation device 10 during its operation.

Abstract: An electricity charging system includes: a charger portion that charges a storage battery; a detection portion that detects an amount of charge stored in the storage battery; and a control portion that controls electric power that is supplied to charge the storage battery by the charger portion so that the electric power changes by a predetermined rule, according to the amount of stored electricity detected by the detection portion.

Abstract: A dip in the output voltage of a motor-vehicle alternator, owing to a connecting of a load or a change in speed, is compensated with the aid of an alternator regulator which provides a control signal that has a duty factor and increases the excitation current of the motor-vehicle alternator. After the occurrence of the voltage dip, in a first step, the duty factor of the control signal is increased by a differential amount, and in a subsequent second step, the rate of correction is limited. After the occurrence of the voltage dip, parameters describing the instantaneous working point of the motor-vehicle alternator are determined, and in the first step, the differential amount is set as a function of the working point.

Abstract: A control circuit of a power factor correction (PFC) converter is provided. The control circuit includes a pulse width modulation (PWM) circuit, an amplifier, a detection circuit., and a capacitor. The PWM circuit generates a switching signal in response to a loop signal. The amplifier is coupled to generate the loop signal in response to a switching current. The detection circuit generates a mode signal coupled to change output impedance of the amplifier. The capacitor is coupled to the amplifier for loop frequency compensation. The switching signal is coupled to switch an inductor of the PFC power converter and generate the switching current.

Abstract: A current source with active common mode rejection uses a principle of having a branch for the generation of the required current, to the output (107) of which one end of the load (3) is connected; and a branch of the active compensation circuit (ACC) (200), to the output (203) of which the other end of the load (3) is connected. By means of at least one input (201) of the ACC (200), at least one signal is sensed on the load, and subsequently it is processed so that the result of processing of at least one signal from at least one input (201) preferentially represents the common mode voltage, which corresponds to the pair of voltages at the voltage terminals (1) and (2) of the load (3), or voltage close to the common mode voltage.

Abstract: An integrated circuit device has a housing having a plurality of external pins; a central processing unit (CPU) operating at an internal core voltage and being coupled with the plurality of pins; and an internal switched mode voltage regulator receiving an external supply voltage being higher than the internal core voltage through at least first and second external pins of the plurality of external pins and generating the internal core voltage, wherein the internal switched mode voltage regulator is coupled with at least one external component through at least one further external pin of the plurality of external pins.

Abstract: Apparatus and methods operate to disable a dynamically biased apparatus and a dynamic bias current source providing dynamic bias current to the apparatus at the beginning of a static bias startup period shortly after power-on. The dynamically biased apparatus is then gradually enabled in a static bias mode of operation during the static bias startup period. Following the end of the static bias startup period, operation of the dynamically biased apparatus in a dynamic transconductance mode is gradually enabled during a dynamic bias startup period. Such startup sequence operates to prevent damaging in-rush currents in a system employing the dynamically biased apparatus in a feedback control loop.

Abstract: A DC-DC converter includes a smoothing capacitor connected between a first output terminal connected to a first end of a load and a second output terminal connected to a second end of the load, the smoothing capacitor smoothing an output voltage. The DC-DC converter includes a choke coil having a first end connected to a first end of a battery. The DC-DC converter includes a semiconductor integrated circuit having a switch terminal connected to a second end of the choke coil, a first potential terminal connected to the first output terminal, and a second potential terminal connected to the second output terminal and a second end of the battery.

Abstract: A buck converter configured for converting a voltage output from a power supply to a load includes a first switch, a second switch, an inductor, three compensators and a control microchip. The first switch and the second switch are connected in series between two ends of the power supply. A first end of the inductor is connected to a node between the first switch and the second switch; a second end of the inductor serves as an output terminal connected to the load. The compensators are correspondingly connected to the first switch, the second switch and the inductor. The control microchip is electrically connected to the first and second switches and the node. The control microchip controls the first and second switches to turn on or off, and executes a current protective process when output current of the output terminal exceeds a current protective threshold of the load.

Abstract: This disclosure relates to radio frequency (RF) power converters and methods of operating the same. In one embodiment, an RF power converter includes an RF switching converter, a low-drop out (LDO) regulation circuit, and an RF filter. The RF filter is coupled to receive a pulsed output voltage from the RF switching converter and a supply voltage from the LDO regulation circuit. The RF filter is operable to alternate between a first RF filter topology and a second RF filter topology. In the first RF filter topology, the RF filter is configured to convert the pulsed output voltage from a switching circuit into the supply voltage. The RF filter in the second RF filter topology is configured to filter the supply voltage from the LDO regulation circuit to reduce a ripple variation in a supply voltage level of the supply voltage. As such, the RF filter provides greater versatility.

Abstract: This disclosure relates to radio frequency (RF) power converters and methods of operating the same. In one embodiment, an RF power converter includes an RF switching converter, a low-drop out (LDO) regulation circuit, and an RF filter. The RF filter is coupled to receive a pulsed output voltage from the RF switching converter and a supply voltage from the LDO regulation circuit. The RF filter is operable to alternate between a first RF filter topology and a second RF filter topology. In the first RF filter topology, the RF filter is configured to convert the pulsed output voltage from a switching circuit into the supply voltage. The RF filter in the second RF filter topology is configured to filter the supply voltage from the LDO regulation circuit to reduce a ripple variation in a supply voltage level of the supply voltage. As such, the RF filter provides greater versatility.

Abstract: This disclosure relates to radio frequency (RF) power converters and methods of operating the same. In one embodiment, an RF power converter includes an RF switching converter, a low-drop out (LDO) regulation circuit, and an RF filter. The RF filter is coupled to receive a pulsed output voltage from the RF switching converter and a supply voltage from the LDO regulation circuit. The RF filter is operable to alternate between a first RF filter topology and a second RF filter topology. In the first RF filter topology, the RF filter is configured to convert the pulsed output voltage from a switching circuit into the supply voltage. The RF filter in the second RF filter topology is configured to filter the supply voltage from the LDO regulation circuit to reduce a ripple variation in a supply voltage level of the supply voltage. As such, the RF filter provides greater versatility.

Abstract: A circuit for regulating and monitoring a signal current, comprising a regulating circuit; and a monitoring circuit. The regulating circuit comprises: a first controlled voltage source for outputting a target value dependent controlled voltage; a current adjust circuit for adjusting the signal current in dependence on the controlled voltage and a first feedback voltage by means of a potentiometer; and a first feedback path, with at least one first resistance element across which the signal current flows. The voltage drop across the resistance element or one of the voltages of the current adjust circuit dependent thereon is supplied as a first feedback voltage.

Abstract: A voltage regulator includes a voltage generation unit, a first resistor section, and a second resistor section. The voltage generation unit compares a reference voltage level with a voltage level of a first node and generates an output voltage. The first resistor section includes a first sub-resistor and a second sub-resistor between the first node and a ground voltage node, and controls a connection between the first sub-resistor and the second sub-resistor to change a resistance value of the resistors. The second resistor section includes a reference resistor, a plurality of unit resistors, and a plurality of step resistors, and controls connections of the unit resistors and the step resistors to change a resistance value of the resistors.

Abstract: A maximum power point tracking controller, suitable for controlling an output voltage of a power converter is provided, including a slope detection unit and a control unit. The slope detection unit calculates whether the output voltage is in a positive trend or in a negative trend according to a detection signal corresponding to the output voltage in order to output a trend signal, in which the voltage level of the trend signal is a first voltage level or second voltage level when the output voltage is in the positive trend or negative trend. The control unit has first and second operation modes to respectively increase and decrease a duty cycle of a PWM signal, in which the control unit switches current operation mode to perform a maximum power point tracking procedure when the trend signal is changed from the first voltage level to the second voltage level.

Abstract: This disclosure relates to radio frequency (RF) power converters and methods of operating the same. In one embodiment, an RF power converter includes an RF switching converter, a low-drop out (LDO) regulation circuit, and an RF filter. The RF filter is coupled to receive a pulsed output voltage from the RF switching converter and a supply voltage from the LDO regulation circuit. The RF filter is operable to alternate between a first RF filter topology and a second RF filter topology. In the first RF filter topology, the RF filter is configured to convert the pulsed output voltage from a switching circuit into the supply voltage. The RF filter in the second RF filter topology is configured to filter the supply voltage from the LDO regulation circuit to reduce a ripple variation in a supply voltage level of the supply voltage. As such, the RF filter provides greater versatility.

Abstract: A switch mode power supply system has a constant on-time signal generator, a logic circuit, a feedback circuit, a first ramp signal generator, a second ramp signal generator, a switch circuit having a power switch, and a comparator. A feedback signal from the feedback circuit is compensated by the first ramp signal generator, and a reference signal is compensated by the second ramp signal generator. The comparator compares the compensated feedback signal with the compensated reference signal to indicate an off time of the power switch while the constant on-time signal generator decides the on-time of the power switch.

Abstract: A control system and method for a shared inductor regulator. The regulator includes an inductor and multiple switches to selectively couple the inductor to output, reference and charge nodes. The charge node may be coupled to a battery. An input switch may be included to selectively couple the inductor to a source node. A controller controls the switches to regulate output voltage, charge current, and a source voltage when provided. The inductor current is sensed and used to regulate the output voltage, and to regulate either the charge current or the input voltage. When an external source provides sufficient power, the charging current is regulated. When the source reaches a maximum power set point, the input voltage is maintained at a minimum level. When the source provides insufficient power, the battery is used to add power or to provide sole power.

Abstract: A capacitive voltage converter comprising a switched capacitor array having a voltage input and a voltage output. A skip gating control coupled to the switched capacitor array and configured to control a switching activity of the switched capacitor array. A resistance look-up table coupled to the switched capacitor array and configured to control a resistance value of the switched capacitor array.

Abstract: Embodiments of circuitry, which includes power supply switching circuitry and a first inductive element, are disclosed. The power supply switching circuitry has a first switching output and a second switching output. The first inductive element is coupled between the first switching output and a power supply output. The power supply switching circuitry operates in one of a first operating mode and a second operating mode. During the first operating mode, the first switching output is voltage compatible with the second switching output. During the second operating mode, the first switching output is allowed to be voltage incompatible with the second switching output.

Abstract: This disclosure describes a time varying power supply that may include a resonator circuit comprising an inductor having first and second terminals, a first capacitor coupled to the first terminal, and a second capacitor coupled to the second terminal, where the first capacitor produces a first time varying power supply output and wherein the second capacitor produces a second time varying power supply output. The time varying power supply may further include an exciter circuit comprising a first PFET and a first NFET coupled to the first terminal and a second PFET and a second NFET coupled to the second terminal. The first and second PFETs and the first and second NFETs may be coupled to a corresponding one of four non-overlapping clock phases.

Abstract: A distribution transformer comprises a sensor system and a communications module. The distribution transformer is configured to convert a first high voltage electricity from a high voltage distribution line to a first low voltage electricity and convey the first low voltage electricity along a low voltage line to an electrical device. The sensor system is configured to determine a temperature of the distribution transformer, and the communications module is configured to transmit a load reduction request along the low voltage line to the electrical device based on the temperature of the distribution transformer.

Abstract: A method for multiphase electrical power phase identification by a monitoring component includes: receiving a request for the power phase identification for a given power component phase connection from a power component; in response, sending signal characteristics to the power component; monitoring power signals on distribution panel phase connections; determining that the signal characteristics are found on a given distribution panel phase connection; and in response, sending an identifier of the given distribution panel phase connection to the power component. In receiving the signal characteristics, the power component: selects the given power component phase connection; applies a signal with the signal characteristic on the given power component phase connection; receives an identifier of the given distribution panel phase connection from the monitoring component; and associates the identifier with the given power component phase connection.

Abstract: A spread spectrum clock signal detection system includes: a spread spectrum clock signal input terminal; a reference clock signal input terminal; a frequency difference detection module connected with the spread spectrum clock signal input terminal and the reference clock signal input terminal; a spread spectrum pulse detection module connected with the spread spectrum clock signal input terminal, the reference clock signal input terminal and the frequency difference detection module; a spread spectrum value calculating module connected with the spread spectrum pulse detection module; a spread spectrum value reference input terminal connected with the spread spectrum value calculating module; and an output module connected with the spread spectrum value calculating module, wherein the spread spectrum clock signal detection system judges whether the spread spectrum clock signal exists according to the information of the spread spectrum value with magnitude and direction.

Abstract: Apparatus, usable to measure current in a multiple-conductor cable having supply and return conductors spaced apart by a nominal conductor spacing and carrying respective supply and return currents in opposite directions, includes (1) a non-magnetic body having a cable-engaging portion defining a location and an orientation axis of the multiple-conductor cable relative to the apparatus when the cable-engaging portion engages the cable during use, (2) a planar, multi-turn wire coil supported by the body immediately adjacent to the location and lying in a plane parallel to the orientation axis, the wire coil having a coil diameter at least four times the nominal conductor spacing, and (3) signal conditioning circuitry operative in response to a voltage signal developed across output ends of the wire coil to generate a conditioned voltage signal having a voltage magnitude determined by and indicative of a magnitude of the supply current during use.

Abstract: A power measurement system includes: a power temperature converter attached to a power supply line of an electric instrument and having a temperature changed corresponding to a current flowing through the power supply line; a temperature measurement apparatus configured to measure the temperature of the power temperature converter; and an analyzer configured to analyze power consumed by the electric instrument by using a measurement result of the temperature of the power temperature converter obtained by the temperature measurement apparatus.

Abstract: Disclosed herein are a substrate and a method for manfuacturing the same, and a probe card employing the substrate as a space transformer, the substrate including: a substrate body; a key forming groove formed in one surface of the substrate body; and an alignment key formed on the key forming groove. According to the present invention, the recognition rate of the alignment key formed on the substrate can be increased, resulting in improved accuracy in a micro electro mecanical system (MEMS) process for forming micro probes on the substrate, thereby improving productivity and reliability of the substrate and the probe card incluing the same.

Abstract: There is provided a coercivity performance determination device for a coercivity distribution magnet that is capable of determining, in a short period of time, with precision, and at as low a testing cost as possible, whether or not each part of one coercivity distribution magnet has a coercivity that is equal to or greater than the required coercivity. A coercivity determining device of the present invention comprises: a substantially C-shaped magnetic body; excitation means that generates a magnetic flow in the magnetic body; and a flux meter that measures the residual magnetic flux of the coercivity distribution magnet. Protrusions are provided at corresponding positions on two opposing end faces of the magnetic body, and the coercivity distribution magnet is held between the two protrusions to form an annular magnetic circuit. An external magnetic field generation means is formed by magnetic regions caused by the protrusions and non-magnetic regions comprising the air in the periphery thereof.

Abstract: A method for detecting magnetic fields, particularly for detecting the position of objects with a preferably oblong, soft-magnetic element, which is connected to electronics, with via the electronics the impedance of the soft-magnetic material is measured, characterized in that a magnetic field is used in which by the position of an object which is located in an arrangement with the soft-magnetic material the magnetic field develops at the location of the soft-magnetic material, with the magnetic permeability ? of the soft-magnetic material adjusting, depending on the magnetic field and thus the position of the object. A respective device serves for applying the method according to the invention.

Abstract: A linear position sensor assembly having a magnetic shield minimizes interference (noise) from adjacent electrical and electromagnetic devices, particularly solenoids. The sensor assembly includes a permanent magnet linear contactless displacement (PLCD) sensor comprising a pair of magnetic field sensors which are spaced apart by a member of high magnetic permeability such as a metal bar. The sensors and metal bar are enclosed, i.e., surrounded on three sides, by a cover or shield of high magnetic permeability material such as steel or mu metal, for example. A permanent magnet is disposed in sensed proximity to the sensors and translates with a clutch actuator component. When the clutch actuator component translates axially, the two field sensors provide a signal to associated electronics having high linearity, low noise and no deadband.

Abstract: Disclosed is a magnetic inductive type position sensor, the position sensor including at least one rotor body coupled to a rotation shaft to rotate in association with rotation of the rotation shaft and having a plurality of protrusively and circumferentially formed wing members, a PCB arranged in opposition to the rotor body, and a guide member connecting each distal end of the wing members to guide each of the wing members to be aligned on the same planar surface.

Abstract: An electromagnetic input device includes a handheld magnetized stylus, an electromagnetic input panel including an induction layer, a controller, and a storage device. The induction layer includes a plurality of closed-loop inductor coils which output an induced current when experiencing the magnetic flux of the stylus. The storage device stores a pre-determined table recording mapping relationship between location coordinates of the stylus on the electromagnetic input panel in each of the inductor coils, and intensities of the corresponding induced current generated therein. The controller determines which inductor coil generates the induced current, and the intensity of the induced current, and further determines the location of the stylus on the electromagnetic input panel based upon determined inductor coil which generates the induced current and the intensity of the induced current generated therein, and the pre-determined table.

Abstract: In a position detector having two sensors, a first sensor detects a position indicated by a first indicator by electromagnetic induction and a second sensor detects a position indicated by a second indicator by a detection method other than electromagnetic induction. The position detector reduces adverse effects of the transmission signal supplied to the second sensor on the electromagnetic induction position detection circuit. The position indication state of the first and second indicators is determined based on a signal output from the first sensor according to the position indication by the first indicator on the first sensor and a signal output from the second sensor according to the position indication by the second indicator on the second sensor. According to the determination results of the position indication state, the level of the transmission signal provided to the second sensor to detect the position indication by the second indicator is controlled.

Abstract: A rotation detector component detects a rotational state of a rotor and sends a rotational detection signal. A signal transmission component is electrically connected with a lead frame of the rotation detector component to transmit the rotational detection signal to an external device. A body portion holds the rotation detector component and a part of the signal transmission component. The body portion is integrally molded of a first resin to cover a joint portion between the lead frame and the signal transmission component, the rotation detector component, and a part of the signal transmission component. A part of the rotation detector component forms an exposed portion exposed from the body portion.