Abstract: A signal delay circuit includes a voltage detection unit and a signal delay unit. The voltage detection unit is configured to detect an external voltage level based on a reference voltage and generate a detection signal. The signal delay unit is configured to control a delay amount of an input signal in response to the detection signal.

Abstract: A digital controlled delay line (DCDL) includes a signal gated delay line generating a delayed signal, a phase selector, a controller, an input signal and an output signal. The phase selector includes logic gates to couple the delayed signal from the signal gated delay line to the output signal. Preventing signal propagation to unused cells and logic gates reduces power consumption. The number of logic gates in the phase selector the delayed signal passes through is log2 p, wherein p is the number of the signal gated delay cells in the signal gated delay line and p is a power of 2. The number of logic gates is (integer part of log2 p)+1, wherein p is the number of the signal gated delay cells and p is not a power of 2.

Abstract: Circuits, integrated circuits, and methods are disclosed for bimodal disable circuits. In one such example method, a counter is maintained, with the counter indicating a logic level at which an output signal will be disabled during at least a portion of one of a plurality of disable cycles. The logic level indicated by the counter is transitioned. An input signal is provided as the output signal responsive to the enable signal indicating that the output signal is to be enabled, and the output signal is disabled at the logic level indicated by the counter responsive to the enable signal indicating that the output signal is to be disabled.

Abstract: An impedance calibration circuit may include a first reference voltage generator configured to generate a first reference voltage in response to reference voltage calibration signals, a second reference voltage generator configured to provide a second reference voltage as a conversion voltage, an impedance calibration signal generator configured to compare the conversion voltage with the first reference voltage and generate impedance calibration signals when an enable signal is activated, and a register configured to store the impedance calibration signals finally calibrated and generate reference voltage calibration signals in response to the stored impedance calibration signals.

Abstract: A receiving circuit for a core circuit is provided and includes a first receiving-path unit. The first receiving-path unit is capable of receiving an input signal and outputting an output signal to the core circuit according to the input signal. The first receiving-path unit includes an input buffer which is capable of operating in a core power domain of the core circuit and receiving a first clamped signal. When a level of the input signal is substantially equal to or lower than a first predetermined voltage level, the input signal is passed to the input buffer to serve as the first clamped signal, and the input buffer is capable of outputting the output signal in the core power domain according to the first clamped signal. When the level of the input signal is higher than the first predetermined voltage level, the input signal is not passed to the input buffer.

Abstract: A method and system avoid ringing at an external power transistor subsequent to switching OFF the external power transistor. A driver circuit generates a drive signal for switching the external power transistor between OFF-state and ON-state. The driver circuit comprises a drive signal generation unit configured to generate a high drive signal triggering the external power transistor to switch to ON-state, wherein an output resistance of the driver circuit is adjustable, an oscillation detection unit to detect a degree of oscillation on the drive signal, and a resistance control unit to adjust the output resistance of the driver circuit based on the degree of oscillation on the drive signal.

Abstract: Sharp fluctuations of an internal voltage when an internal voltage generating circuit is activated or inactivated are prevented. The internal voltage generating circuit to supply the internal voltage generated from an external voltage to an internal power supply line, a control circuit to control an operation of the internal voltage generating circuit, and a voltage detection circuit to detect a level of a first voltage are included. When, for example, the internal voltage generating circuit is activated, the control circuit stepwise increases supply ability of the internal voltage at a first speed and when the internal voltage generating circuit is inactivated, the control circuit stepwise reduces the supply ability of the internal voltage at a second speed that is different from the first speed. Accordingly, wild fluctuations of the internal voltage when the internal voltage generating circuit is activated/inactivated can optimally be prevented for each case.

Abstract: A charge pump system includes a charge pump, a ring oscillator, a comparing circuit and a discharge circuit. When an output voltage of the charge pump is relatively low, the comparing circuit turns on the ring oscillator to make the ring oscillator provide an oscillation output to the charge pump to raise the output voltage of the charge pump. When the output voltage of the charge pump is relatively high, the comparing circuit turns off the ring oscillator to stop the ring oscillator from providing the oscillation output to the charge pump, the comparing circuit also makes the discharge circuit provide a discharge path to the charge pump to quickly reduce the output voltage of the charge pump.

Abstract: Systems and methods for current sensing are described. The described systems and methods utilize a comparator for generating a current sense signal based on comparing an output current of a circuit against a reference current. The reference current is generated by using a current sourcing circuit that is connected to a controllable current source.

Abstract: A reference voltage generator includes a first transistor and a second transistor coupled in series between a current supply and ground. Gate insulating films of the first transistor and the second transistor are made of the same type of film with the same thickness. Impurities contained in gate electrodes of the first transistor and the second transistor have different conductivity types, or have the same conductivity type and different concentrations. The first transistor has a greater gate width than the second transistor. The first transistor and the second transistor operate in a subthreshold region when a reference voltage is output outside.

Abstract: A microelectronic package includes a microelectronic element operable to output a discrete-value logic signal indicating an imminent increase in demand for current by at least some portion of the microelectronic element. An active power delivery element within the package is operable by the logic signal to increase current delivery to the microelectronic element.

Abstract: The present disclosure relates to an electronic regulation device of a variable capacitance of an integrated circuit having a time parameter depending on the variable capacitance. The regulation device includes a regulation loop, and is configured to generate in output a plurality of binary regulation signals.

Abstract: A power amplification circuit having three modes of operation and a single switch is disclosed. Only one switch is used to control three different load impedance levels, one load impedance level for each mode of operation. The remaining “switching” results from selectively biasing each power amplification path by turning ON or OFF amplifiers. A series L-C and a switch are used to control the load impedance. Additional modes of operation may also be created without requiring any additional switch. Further, multiple modes of operation may be implemented using no switches.

Abstract: There is described a method of controlling signal alignment in a power amplifier, comprising: receiving an input signal to be amplified; receiving a supply voltage for the power amplifier, the supply voltage being derived in dependence on the signal to be amplified; amplifying the input signal to produce an output signal; comparing the output signal with a plurality of distorted versions of the input signal, each distorted version of the input signal being associated with a different time delay value; and adjusting the timing of either the input signal or the supply voltage by an amount in dependence on a time delay value determined to be associated with a distorted version of the input signal which most closely matches the output signal.

Abstract: A transconductance circuit that improves linearity and output current over a wider range of input voltages than prior designs. The transconductance circuit may include first and second sets of paired differential transistors. In each set, emitters of the paired transistors may be commonly coupled to corresponding nodes of a common impedance, and collectors may be coupled to output terminals of the transconductance circuit. The circuit may further include first and second sets of doublet differential transistor pairs, each doublet pair having transistors of different sizes. Each doublet pair may have current sources coupled between commonly coupled emitters and a source potential. Respective collectors for each doublet pair may be coupled to the output terminals of the transconductance circuit. A pair of voltage followers may be provided to replicate corresponding input voltages across corresponding bases of the differential transistor pairs and the doublet transistor pairs.

Abstract: A folded cascode operational amplifier includes a constant current source to output a constant current; a differential input stage to output a part of the constant current as a differential current based on a voltage difference between voltages input to an inverting input terminal and a non-inverting input terminal, and connected to the constant current source; and an output stage to output a remaining current obtained by subtracting the differential current from the constant current as an output stage current, and connected parallel to the differential input stage facing the constant current source.

Abstract: A current-sensing differential amplifier has a balanced input. Thus, a balanced-input current-sensing differential amplifier has a first signal input terminal, a second signal input terminal, a first signal output terminal and a second signal output terminal. The balanced-input current-sensing differential amplifier includes a first current mirror, the input terminal of the first current mirror being coupled to the first signal input terminal, a second current mirror, the input terminal of the second current mirror being coupled to the second signal input terminal, a third current mirror, one of the output terminals of the third current mirror being coupled to the common terminal of the first current mirror and to the common terminal of the second current mirror, three current sources and an output circuit.

Abstract: A positive and negative voltage input operational amplifier includes a positive operational amplifier and a negative operational amplifier. Each of the positive operational amplifier and the negative operational amplifier has a reduced layout area and a lowered static current, so that the power consumption is effectively reduced.

Abstract: Provided is a compact high frequency power amplifier having a high degree of freedom of design with respect to a gain fluctuation immediately after start-up of an amplifier. The high frequency power amplifier includes a speed-up circuit that transiently increases a reference voltage during rise of a control voltage to increase an amount of bias supplied to an amplification transistor from a bias circuit. The speed-up circuit includes a capacitor and an overshoot control circuit. The overshoot control circuit determines an increasing amount of the reference voltage when the reference voltage is transiently increased according to a charge amount charged in the capacitor, and the overshoot control circuit also determines a time constant in charging and discharging the capacitor.

Abstract: A power amplifier including a MOSFET including a source supplied with a first DC power, a gate connected to an RF input signal, and a drain connected to a power supply terminal of an RF power amplification unit; a supply voltage modulation control unit that determines a DC gate voltage of the MOSFET based on an envelope of the RF input signal; and a bypass circuit connected between the drain and the power supply terminal. The MOSFET outputs a second DC power via the drain and amplifies the RF input signal based on a third DC power substantially identical to a differential between the first and the second DC power, and also outputs an RF power via the drain. The bypass circuit receives and rectifies the RF power to supply a recycled DC power to the power supply terminal of the RF power amplification unit.

Abstract: In one general aspect, an apparatus can include a phase frequency detector configured to produce a plurality of indicators of relative differences between a frequency of a target oscillator signal and a frequency of a reference oscillator signal. The apparatus can also include a pulse generator configured to produce a plurality of pulses based on the plurality of indicators. The plurality of pulses can include a first portion configured to trigger an increase in the frequency of the target oscillator signal and the plurality of pulses including a second portion configured to trigger a decrease in the frequency of the target oscillator signal.

Abstract: High-speed CMOS ring voltage controlled oscillators with low supply sensitivity have been disclosed. According to one embodiment, a CML ring oscillator comprises a CML negative impedance compensation circuit comprising two cross coupled transistors and a resistor connected to the two transistors for resistive biasing and a CML interpolating delay cell connected in parallel with the CML negative impedance compensation. An impedance change of the CML negative impedance compensation due to supply variation counteracts an impedance change of the CML interpolating delay cell.

Abstract: A control circuit controls first and second clock generator subcircuits so that one subcircuit of the first and second clock generator subcircuits operates for a comparison voltage generating interval, then another subcircuit operates for a clock generating interval, and so that the first and second clock generator subcircuits alternately repeat processes of the comparison voltage generating interval and the clock generating interval. For the comparison voltage generating interval, each of the first and second clock generator subcircuits is controlled to generate a comparison voltage and output the same voltage to an inverted output terminal of a comparator. For the clock generating interval, each of the first and second clock generator subcircuits compares an output voltage from a current-voltage converter circuit with the comparison voltage.

Abstract: A method is provided for tuning a microelectromechanical systems (MEMS) oscillator comprising an acoustic resonator and a tuning and amplification circuit arranged in a loop. The method comprises determining an initial oscillation frequency of the oscillator, modifying a capacitance of the tuning and amplification circuit according to the initial oscillation frequency, and adjusting a power level of the oscillator according to the modified capacitance.

Abstract: An oscillator includes a first capacitor electrically connected to a first charging switch and a first discharging switch, a second capacitor electrically connected to a second charging switch and a second discharging switch, a first chopping circuit having a first input electrically connected to the first capacitor and a second input electrically connected to a reference voltage, a second chopping circuit having a first input electrically connected to the second capacitor and a second input electrically connected to the reference voltage, a first comparator having a first input electrically connected to a first and second output of the first chopping circuit, a second comparator having a first input electrically connected to a first and second output of the second chopping circuit, and control circuitry having a first input electrically coupled to an output of the first comparator and a second input electrically connected to an output of the second comparator.

Abstract: An oscillation device for reducing memory capacity includes a frequency difference detecting unit and a compensation value obtaining unit. When oscillation frequencies of the first and second oscillation circuits are respectively f1 and f2, and oscillation frequencies of the first and second oscillation circuits at a reference temperature are respectively f1r and f2r, the frequency difference detecting unit determines a difference corresponding value x corresponding to a difference value between a value corresponding to a difference between f1 and f1r, and a value corresponding to a difference between f2 and f2r. The compensation value obtaining unit obtains a frequency compensation value of f1 resulting from ambient temperature different from reference temperature based on the difference corresponding value x, and calculates the frequency compensation value of f1 by calculating nth-order polynomial for X being a value corresponding to x/k, where k is a divide coefficient specific to a device.

Abstract: An oscillating signal generating device includes: an oscillating circuit arranged to generate an oscillating signal according to a current controlled signal; and a control signal generating circuit coupled to the oscillating circuit, the control signal generating circuit for receiving a first reference voltage and a second reference voltage, the control signal generating circuit operated between the first reference voltage and the second reference voltage, and the control signal generating circuit arranged to generate the current controlled signal according to a voltage input signal; wherein the control signal generating circuit is capable of monotonically generating the current controlled signal according to the voltage input signal when a voltage level of the voltage input signal falls between the first reference voltage and the second reference voltage.

Abstract: In a high-frequency module, an input terminal, an output terminal and a ground terminal, which are arranged so as to be capable of being visually checked, and wiring line electrodes located on a mounting surface are electrically connected to each other by wires and therefore the connection state of a non-reciprocal circuit element to the wiring line electrodes on the mounting surface of the substrate can be easily visually checked and an impedance adjustment between the non-reciprocal circuit element and the wiring line electrodes located on the mounting surface of the substrate on which the non-reciprocal circuit element is mounted or electronic components mounted on the mounting surface can be easily performed by adjusting the lengths of the wires.

Abstract: An apparatus and method for outputting high-frequency, high-power signals from low-frequency, low-power input is disclosed. The apparatus and method may provide a two-dimensional nonlinear lattice having a plurality of inductors and voltage-dependent capacitors intersecting at a plurality of nodes. Two or more adjacent boundaries of the nonlinear lattice may be provided with input signals which constructively interfere to output a signal of substantially higher amplitude and higher frequency than those of the input signals.

Abstract: A guided acoustic wave resonant device is provided. The device comprises at least two filters (F1, . . . , Fi, . . . , FN), each filter comprising at least two acoustic wave resonators (R11-R12, . . . , Ri1-Ri2, . . . , RN1-RN2), each filter having a useful frequency band (BF1, . . . , BFi, . . . , BFN) centered on a central frequency (f1, . . . , fi, . . . , fN), each resonator comprising at least one suite of inter-digitated upper electrodes exhibiting a periodic structure of period (?ij) and a layer of piezoelectric material, each resonator having a coupling coefficient (k21, k22, . . . , k2n) and a resonant frequency (fr1, . . . , fr2, . . .

Abstract: An acoustic resonator with improved quality factor and electro-mechanical coupling is disclosed. In one embodiment, the acoustic resonator includes an acoustic mirror formed on the top surface of a substrate or in the substrate, a first electrode having a end portion, formed on the acoustic mirror, a piezoelectric layer formed on the first electrode; and a second electrode formed on the piezoelectric layer, where at least one of the first electrode and the second electrode and the piezoelectric layer define a gap in a region that overlaps the end portion of the first electrode. In one embodiment, a dielectric film is deposited on the surface of the end portion of the first electrode to form completely planarized surface before the piezoelectric layer deposition. In another embodiment, a gap between the second electrode and the piezoelectric layer, so that the piezoelectric coupling in the end portion area of the first electrode is minimally contributed into the whole resonator.

Abstract: A resonator element includes a base portion in which a pair of notches is formed, a pair of resonating arms which is extended in parallel from one end side of a first portion of the base portion. The resonating arm is provided with a bottomed elongated groove which has an opening along at least one principal surface of both principal surfaces and a weight portion which is formed at the tip end side of the resonating arm on the opposite side of a root of the resonating arm attached to the base portion and which has a larger width than on the root side. The weight portion is formed so that the proportion of the length of the weight portion to the length from the root to the tip end side in a longitudinal direction of the resonating arm is within a range of 35% to 41%.

Abstract: A switch is provided with a reset function including a heart cam portion which extends from a locked position to a side where a lock pin operation end biases, and a lock release passage IV which is blocked off by a lock pin retention protrusion during being retained. The lock pin retention protrusion is moved by biasing force of the lock pin operation end so that the locked state is released by opening the lock release passage IV. This embodiment can decrease wear between the lock pin and the member for retaining the lock pin.

Abstract: A switch device includes first and second contacting portions including first and second fixed contacting portions, first and second movable contacting portions and first and second break contacting portions, respectively, the first fixed contacting portion and the second fixed contacting portion being configured to be electrically connected to one of a power source and an electronic device while the first movable contacting portion and the second movable contacting portion are configured to be electrically connected to the other of the power source and the electronic device; and a first magnet and a second magnet configured to generate magnetic fields between the first fixed contacting portion and the first movable contacting portion and between the second fixed contacting portion and the second movable contacting portion, respectively.

Abstract: An apparatus including an electromagnetic coil and a magnet system. The electromagnetic coil includes electrical leads. The magnet system forms electrical conductors connected to the electrical leads of the coil. The magnet system is configured to provide an electrical interface.

Abstract: Exemplary embodiments are directed to a bistable magnetic actuator for a medium voltage circuit breaker arrangement, including at least one electrical coil for switching a ferromagnetic armature between a first limit position and a second limit position effected by an electromagnetic field, at least one permanent magnet for holding the armature in one of the two limit positions corresponding to an open and a closed electrical switching position respectively of the mechanically connected circuit breaker. The armature includes an upper plunger resting on a ferromagnetic core element of the one electrical coil for static holding the armature in the first limit position, which is attached to a plunger rod extending through the ferromagnetic core element and through the permanent magnet for mechanically coupling the actuator to the circuit breaker arrangement.

Abstract: A magnetic force profile system and related methods and devices based on a sequence of magnets arranged according to a code and acting on a complementary sequence of non-polarized magnetic attraction elements, for example, iron, soft iron, steel, and others. Variations include the addition of polarity codes to the first sequence of magnets, and operation with electromagnets. Exemplary attachment devices and lock and key devices are disclosed.

Abstract: There is provided a transformer having a minimized leakage inductance. The transformer includes: a bobbin including at least one partition wall formed on an outer peripheral surface of a pipe shaped body part thereof; a plurality of coils wound and stacked on the body part; and a core electromagnetically coupled to the coils to thereby form a magnetic path, wherein the respective coils are disposed in a plurality of spaces partitioned by the at least one partition wall.

Abstract: A flux concentrator and method for manufacturing a flux concentrator is provided. The method can include combining powdered soft magnetic material, a binder, a solvent, a internal lubricant; mixing the materials to create a mixture, evaporating the solvent from the mixture, molding the mixture to form a flux concentrator, and curing the flux concentrator. The flux concentrator may be laminated and broken into multiple pieces, which makes the flux concentrator more flexible. Breaking the flux concentrator does not significantly affect the magnetic properties. Since the permeability of the binder is very similar to that of air, adding tiny air gaps between the fractions is not significantly different than adding more binder.

Abstract: This magnetic ring is formed by an upper U-shaped part and a lower U-shaped part, each upper and lower part comprising two vertical arms each introduced into a respective hole of the printed circuit board, each arm of the upper part being superimposed, within the respective hole and in a horizontal direction, on the corresponding arm of the lower part to set up magnetic continuity between these two parts of the magnetic ring.

Abstract: A multi-layer, multi-turn structure for an inductor having a plurality of conductor layers separated by layers of insulator is described. The inductor further comprises a connector electrically connected between the conductor layers. The structure of the inductor may comprise a cavity therewithin. The structure of the inductor constructed such that electrical resistance is reduced therewithin, thus increasing the efficiency of the inductor. The inductor is particularly useful at operating within the radio frequency range and greater.

Abstract: A multi-layer, multi-turn structure for an inductor having a plurality of conductor layers separated by layers of insulator is described. The inductor further comprises a connector electrically connected between the conductor layers. The structure of the inductor may comprise a cavity therewithin. The structure of the inductor constructed such that electrical resistance is reduced therewithin, thus increasing the efficiency of the inductor. The inductor is particularly useful at operating within the radio frequency range and greater.

Abstract: An exemplary transformer winding including at least two hollow-cylindrical, axially adjacent winding modules, which are arranged about a common winding axis and have an electrical conductor wound in layers, and a common electrical insulting layer, through which the winding modules are enveloped. The insulating layer has at least one annular, radial depression or annular, radial elevation, which is salient transversely to the winding axis on the radial outer face of said insulating layer.

Abstract: In one embodiment, the instant invention can provide an inductor that at least includes the following component(s): at least one FAP positioned along at least one magnetic flux path; where the at least one FAP is a high permeability core gap piece; and where the at least one FAP has an effective magnetic permeability that varies based on at least in part on one of the following factors: i) at least one magnetic flux through the at least one FAP, and ii) sufficient heating of the at least one FAP.

Abstract: A disconnector for electric power equipment filled with dielectric liquid, especially transformers, applicable in protecting the operation of electric power equipment. The disconnector contains at least two cylindrical current-limiting fuses situated inside a tank, and each fuse is electrically connected with external phase power supply and through fixed contacts and moving contacts of the disconnector with the active part of the piece of electric power equipment. The disconnector is characterized in that the current-limiting fuses are placed in a common housing, in which a slide with a pilot is situated, and to the slide there are inseparably fixed moving contacts, which move together with the slide when the slide makes a to-and-fro motion. The to-and-fro motion takes place as a result of the operation of a tripping device situated in the current-limiting fuses and of the compression or stretching of springs fixed to the pilot and to a fixing disk.

Abstract: The present invention relates to a touch panel, more specifically a piezoresistive type touch panel. According to the present invention, it is provided a manufacturing method of a piezoresistive type touch panel, comprising manufacturing a polymer membrane in which a piezoresistive type film pattern, of which resistance varies with applied pressure, is embedded; manufacturing a spacer layer and attaching one side of the spacer layer to a surface of the polymer membrane; and then attaching a bottom substrate to the other side of the spacer layer.

Abstract: A resistor unit adapted to be used in a resistor grid assembly. The resistor unit includes a supporting element and a resistor element. The supporting element has an aperture formed therein. The resistor element has a body portion and a tip portion at an end, which is adapted to be received in the aperture to mount the resistor element to the supporting element. Further, a tab extends from the end of the resistor element forming a part of the resistor element. The tab is configured to provide a heat shield between the supporting element and the resistor element.

Abstract: A system for monitoring and/or controlling equipment in a hazardous area can include at least one sensor disposed within the hazardous area. Each sensor can be non-electrical and can be adapted to interact with the equipment and generate at least a first sensor output and second sensor output. The first sensor output can be indicative of a first equipment state and a second sensor output can be indicative of a second equipment state. The system can also include at least one converter disposed outside the hazardous area. Each converter can be in communication with at least one of the sensors. Each converter can be configured to receive the first and second sensor output and generate a converter output signal based on at least one of the first and second sensor outputs.

Abstract: Asset management for control of electric appliances comprises a keycode unit and an equipment unit embedded in an appliance. The keycode unit is located in a protected environment and relates to an asset management area. The equipment unit may store an appliance identification code. The keycode unit and the equipment unit may be in communication contact, whereby the equipment unit sends positioning coordinates to the keycode unit, and wherein the equipment unit is adapted to lock the appliance via the lock unit, in response to a lock signal that the equipment unit receives from the keycode unit, if the appliance moves outside the asset management area.

Abstract: In an access control device including a lock (2) with a locking element, an actuating element (3) for the locking element, an electronic key (5), an electrical circuit including a receiver unit for receiving key identification data and an evaluation circuit for determining access authorization based on the received identification data, the evaluation circuit cooperates with the actuating element (3) and/or the locking element for selectively locking or unlocking the lock (2). The electronic key (5) comprises means for generating a capacitive near field via which the identification data is emitted.