Integrated Device Technology, Inc.

Integrated Power Technologies, Ltd.

Stephen Ulbrich

Lijie Zhao

Jan Krellner

Kenneth C Kwok

Yue Wang

Jack Cornish

A rectifier circuit can include a plurality of FETs arranged as a rectifier; and a start-up circuit applied to each of the plurality of FETs that turn each of the FETs off during a circuit startup period, wherein the start-up circuit provides a large impedance for low power dissipation during normal operation of the rectifier.

High frequency wireless power rectifier startup circuit design

A switching regulator is presented. An embodiment of the switching regulator can include a high switch coupled between an input voltage and a switched output; a low switch coupled between the switched output and a ground; and a ringing switch coupled between a capacitor and the switched output, wherein the ringing switch is closed prior to transition into a tristate where both the high switch and the low switch are open.

Dual use bootstrap driver

Power control systems and power control devices may include a power control chip having a power control module configured to generate a power stage control signal, and an external power stage having a timing control module. The timing control module may be configured to receive the power stage control signal and generate a timing control signal controlling at least one switch to regulate an output voltage of the external power stage. The power control device further includes an auto-configuration module configured to communicate with the external power stage and request auto-configuration information from the external power stage. A related method of auto-configuring a power control system includes communicating auto-configuration information between at least one external power stage of a power control system and a power control chip, and configuring a setting of the at least one external power stage of the power control system based on the auto-configuration information.

Apparatuses and system and method for auto-configuration of a power control system

Power control systems and power control devices may include a power control chip having a power control module configured to generate a power stage control signal, and at least one power stage having a timing control module that is physically separate from the power control module. The timing control module may be configured to receive the power stage control signal and generate a timing control signal controlling at least one switch to regulate an output voltage of the at least one power stage. A related method may include generating power stage control information indicating an offset between an output voltage and a desired regulated output voltage, transmitting the power stage control information between modules that are physically separate, and timing signals for controlling a switching converter to regulate the output voltage. A related method of auto-configuring a power control system is also disclosed.

Apparatuses and system having separate power control and timing control of a power control system and related method

A switch mode power amplifier circuit apparatus comprises a fixed gain amplifier, modulator and a filter circuit electrically configured so as to direct a feedback signal for reducing clock ripple and improving signal fidelity at an output takeoff point in the amplifier circuit. An amplifier output is directed to the modulator and a modulator output is directed into an inductor of the filter circuit. The feedback signal is directed from the filter circuit to an amplifier input.

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Anaheim Hills, CA, United States of America

Stephen Ulbrich