Abstract: Systems and methods for phase angle balancing and voltage balancing in multi-phase systems are described herein. The system can include a multi-phase control system coupled to a plurality of voltage regulators. The multi-phase control system can receive sense signals from the plurality of voltage regulators. The multi-phase control system can use the sense signals to determine phase angles between the multiple phases and adjust an output voltage of a phase. The multi-phase control system can also use the sense signals to determine voltage deltas between the multiple phases and adjust an output voltage of a phase.

Abstract: A boost converter having an inductor having a first terminal coupled to an input port to receive the input voltage; a high side switch coupled between the inductor and an output port; a low side switch coupled between the inductor and a ground reference; and a control circuit configured to receive a feedback signal indicative of the output voltage and a reference signal, and to provide a high side control signal and a low side control signal based on the feedback signal and the reference signal; wherein the low side switch on time period is controlled to be constant by the low side control signal when the input voltage and the output voltage are fixed.

Abstract: The subject matter of this specification can be embodied in, among other things, a method that includes providing first power received from a first power bus to a first switching device configured to switch first power to a first output port based on a first input signal received at a first input port, providing second power received from a second power bus to a second switching device configured to switch second power to a first bootstrap capacitor coupled between the second switching device and the first output port based on a second input signal received at a second input port, providing an output voltage to the first output port, providing the second input signal to the second input port, switching the second switching device based on the second input signal, and charging the first bootstrap capacitor with second power received from the second power bus.

Abstract: A multi-phase parallel converter can include: sampling circuits corresponding to power stage circuits to form a plurality of phases of the multi-phase parallel converter, where each sampling circuit samples an inductor current of a corresponding power stage circuit, and generates a sense signal; a current-sharing circuit that generates a current-sharing control signal according to a superimposed signal that is generated by adding the sense signal to a bias voltage signal; switching control circuits corresponding to the power stage circuits, where each switching control circuit receives the current-sharing control signal, and controls a switching operation of a corresponding power stage circuit; and a bias voltage generator that generates the bias voltage signal to gradually increase/decrease when a selected phase is to be disabled/enabled.

Abstract: Systems and methods for optimizing power factor correction between voltage regulators are described herein. The system can include a leader voltage regulator controller coupled to a first voltage regulator and a follower voltage regulator controller coupled to both a second voltage regulator and the leader voltage regulator controller. The leader voltage regulator controller can determine a difference in measured power factors between the first voltage regulator and the second voltage regulator. The leader voltage regulator controller can also initiate an adjustment of a tap position of the first voltage regulator or the second voltage regulator. Alternatively, instead of leader and follower voltage regulator controllers, the system can utilize a single connected voltage regulator controller that determines differences in measured power factors between a first voltage regulator and a second voltage regulator and initiates an adjustment in a tap position(s) when appropriate.

Abstract: The present invention relates to a voltage converter comprising a primary side which has a full bridge device which is configured for the purpose of receiving a first DC voltage from a voltage source at a first amplitude and to transmit same to a primary coil arranged in the primary side, comprising a control unit which is designed for the purpose of controlling the full bridge device using PWM signals having phases shifted counter to one another, wherein the control unit is configured to detect an asymmetry in the current supplied to the primary coil based on a current profile in the primary coil, wherein the control unit is designed to compensate for a detected asymmetry by adjusting the PWM signals. The present invention further relates to a corresponding method.

Abstract: Techniques are described to adjust the time when a switch is turned on from the time of one voltage valley to the time of another voltage valley for controlling an average load current or average load voltage. In some examples, the adjustment is instantaneous, and in some examples, the adjustment is gradual. Both of these example techniques provide for high switching efficiency of the switch.

Abstract: A power conversion device, which includes an insulation type full bridge converter and can switch a power transmission direction at a high speed, is provided. A DC/DC converter (10) constitutes a power conversion device, which operates as a first type converter that converts a voltage within a first range applied to a first input/output terminal pair into a voltage within a second range and outputs the voltage from a second input/output terminal pair or a second type converter that converts a voltage within the second range applied to the second input/output terminal pair into a voltage within the first range and outputs the voltage from the first input/output terminal pair, as a device that performs a specific state transition of the DC/DC converter (10) after a change rate of a magnitude of a current flowing through a winding of a primary or secondary side of a transformer (TR) with respect to time reaches a value within a predetermined change rate range.

Abstract: A voltage regulator having current sense capability may include an input node and an output node. A first output device may be electrically connected between the input node and the output node, and configured to control current flow through the first output device to regulate a voltage at the output node. A current sense circuit may be configured to produce a signal that is indicative of the current through the first output device. The current sense circuit may be configured to perform a first kind of offset compensation operation to reduce an offset voltage in an error amplifier of the current sense circuit, and to perform a second kind of offset compensation operation to reduce the offset voltage in the error amplifier.