Abstract: A multiphase converter provides an output voltage to a load. The multiphase converter receives a load event signal from the load and turns ON at a same time the phases of the multiphase converter to increase the output voltage in response to the load event signal indicating that a load current drawn by the load from the multiphase converter is about to increase. The multiphase converter increases an impedance of low-side switches of the multiphase converter in response to the load event signal indicating that the load current is about to decrease.

Abstract: A multiphase converter provides an output voltage to a load. The multiphase converter receives a load event signal from the load and turns ON at a same time the phases of the multiphase converter to increase the output voltage in response to the load event signal indicating that a load current drawn by the load from the multiphase converter is about to increase. The multiphase converter increases an impedance of low-side switches of the multiphase converter in response to the load event signal indicating that the load current is about to decrease.

Abstract: Systems, methods, and computer-readable media are disclosed for systems and methods for simultaneously sending a single signal comprising distinct instructions for two separate devices. Example methods may include receiving, by a control device instructions to adjust the operation of a first device and a second device, generating a single signal corresponding to the received instructions for two separate devices, and simultaneously sending the single signal to the two separate devices causing the devices to perform the distinct instructions intended for each respective device.

Abstract: Systems and methods of improving the operation of a transaction network and transaction network devices is disclosed. A spend engagement and relevance diagnostics host may comprise various modules and engines wherein a merchant and/or customer transaction record may be evaluated for establishing proper usage of differentiated transaction instruments according to their proper purposes, proper acceptance by merchants of differentiated transaction instruments, and delivery of value-added data such as electronically indicated offers.

Abstract: Systems and methods of improving the operation of a transaction network and transaction network devices is disclosed. A spend engagement and relevance diagnostics host may comprise various modules and engines wherein a merchant and/or customer transaction record may be evaluated for establishing proper usage of differentiated transaction instruments according to their proper purposes, proper acceptance by merchants of differentiated transaction instruments, and delivery of value-added data such as electronically indicated offers.

Abstract: Compact optical sources and methods for producing short and ultrashort optical pulses are described. A semiconductor laser or LED may be driven with a bipolar waveform to generate optical pulses with FWHM durations as short as approximately 85 ps having suppressed tail emission. The pulsed optical sources may be used for fluorescent lifetime analysis of biological samples and time-of-flight imaging, among other applications.

Abstract: Apparatus and methods for producing ultrashort optical pulses are described. A high-power, solid-state, passively mode-locked laser can be manufactured in a compact module that can be incorporated into a portable instrument for biological or chemical analyses. The pulsed laser may produce sub-100-ps optical pulses at a repetition rate commensurate with electronic data-acquisition rates. The optical pulses may excite samples in reaction chambers of the instrument, and be used to generate a reference clock for operating signal-acquisition and signal-processing electronics of the instrument.

Abstract: This disclosure is directed to hybrid continuous and discontinuous mode operation. In general, a system comprising a control module and voltage converter module may be configured to operate in a continuous conduction mode (CCM) until a current through an inductor in the voltage converter module is determined to be at or below zero (e.g., negative). The controller may then transition to operating the voltage converter module in a discontinuous control mode (DCM). Some or all of the DCM may be implemented digitally within the controller. In this manner, benefits may be realized from operating in either CCM or DCM while minimizing the disadvantages associated with these control schemes. Moreover, digitizing DCM control may allow for easier implementation and better performance than traditional DCM operation.

Abstract: A method of operating a regulator controller IC for performing intermittent diode braking for controlling a multiple phase voltage regulator. The method includes receiving at least one signal for detecting repetitive load transients, determining a rate of the repetitive load transients, generating diode braking control signals, each for applying diode braking to a corresponding one of multiple phases for at least one load transient when the repetitive load transients are below a first rate, and controlling the diode braking control signals to drop application of diode braking of at least one phase for at least one load transient when the repetitive load transients are at least the first rate. The method may include rotating the application of diode braking among the phases during successive applications of diode braking. The method may include dropping an increased number of phases for diode braking as the rate of repetitive load transients is increased.

Abstract: A drive control circuit generates switching drive signals for a single phase of a multiphase voltage regulator. A driver circuitry generates the switching drive signals for the voltage regulator responsive to a clock signal. A clock circuitry generates the clock signal responsive to a monitored external clock signal. A phase number detector determines a number of active phases in the multiphase voltage regulator in real time responsive to an indicator on a phase number input monitored by the phase detector.

Abstract: A method of operating a regulator controller IC for performing intermittent diode braking for controlling a multiple phase voltage regulator. The method includes receiving at least one signal for detecting repetitive load transients, determining a rate of the repetitive load transients, generating diode braking control signals, each for applying diode braking to a corresponding one of multiple phases for at least one load transient when the repetitive load transients are below a first rate, and controlling the diode braking control signals to drop application of diode braking of at least one phase for at least one load transient when the repetitive load transients are at least the first rate. The method may include rotating the application of diode braking among the phases during successive applications of diode braking. The method may include dropping an increased number of phases for diode braking as the rate of repetitive load transients is increased.

Abstract: A battery charger comprises charging circuitry for providing a battery charging voltage responsive to an input voltage. First circuitry provides both over-voltage protection and an input voltage bypass signal responsive to the input voltage. The first circuitry includes a low impedance switch having a resistance of at least 500 m? for connecting the input voltage to an output voltage node. The first circuit also includes a higher impedance switch having a resistance of at least 1000 m? for providing the input voltage as a voltage bypass signal.

Abstract: A drive control circuit generates switching drive signals for a single phase of a multiphase voltage regulator. A driver circuitry generates the switching drive signals for the voltage regulator responsive to a clock signal. A clock circuitry generates the clock signal responsive to a monitored external clock signal. A phase number detector determines a number of active phases in the multiphase voltage regulator in real time responsive to an indicator on a phase number input monitored by the phase detector.

Abstract: Testing a model of a logic circuit model. The testing includes generating valid random input stimulus sequences for a logic circuit model. Enumerating critical resource requirements, enumerating critical resource availabilities does this, and selecting of stimulus sequences and determining legal times for execution of said stimulus sequences based on resource availability. This includes generating a plurality of possible combinations of input stimulus sequences and generating an array representation of critical resource requirements. These are used to generate an array representation of critical resources availabilities.

Abstract: A battery charger comprises charging circuitry for providing a battery charging voltage responsive to an input voltage. First circuitry provides both over-voltage protection and an input voltage bypass signal responsive to the input voltage. The first circuitry includes a low impedance switch having a resistance of at least 500 m? for connecting the input voltage to an output voltage node. The first circuit also includes a higher impedance switch having a resistance of at least 1000 m? for providing the input voltage as a voltage bypass signal.

Abstract: A circuit for controlling the switching frequency of an oscillator for a PWM controller for a switching mode power supply, comprising a first stage providing a signal which is related to the temperature of the controller for the switching mode power supply; and an oscillator having an oscillation frequency and being responsive to the signal from the first stage for changing the oscillation frequency such that the oscillation frequency decreases as the temperature increases and vice versa.

Abstract: A circuit and method for reducing losses in a DC/DC converter by optimizing gate drive voltage. The circuit and method detect a change in the output load, or more specifically the output current, and adjust the gate voltage accordingly; in other words, providing adaptive gate drive voltage. In response to a reduction of output current, the invention reduces the gate voltage so as to reduce both conduction and switching losses in the semiconductor switching devices in the output stage.

Abstract: A circuit and method for reducing losses in a DC/DC converter by optimizing gate drive voltage. The circuit and method detect a change in the output load, or more specifically the output current, and adjust the gate voltage accordingly; in other words, providing adaptive gate drive voltage. In response to a reduction of output current, the invention reduces the gate voltage so as to reduce both conduction and switching losses in the semiconductor switching devices in the output stage.

Abstract: A circuit for controlling the switching frequency of an oscillator for a PWM controller for a switching mode power supply, comprising a first stage providing a signal which is related to the temperature of the controller for the switching mode power supply; and an oscillator having an oscillation frequency and being responsive to the signal from the first stage for changing the oscillation frequency such that the oscillation frequency decreases as the temperature increases and vice versa.

Abstract: A drive control circuit generates switching drive signals for a single phase of a multiphase voltage regulator. A driver circuitry generates the switching drive signals for the voltage regulator responsive to a clock signal. A clock circuitry generates the clock signal responsive to a monitored external clock signal. A phase number detector determines a number of active phases in the multiphase voltage regulator in real time responsive to an indicator on a phase number input monitored by the phase detector.