公开(公告)号：US11258365B2

公开(公告)日：2022-02-22

申请号：US16910425

申请日：2020-06-24

Applicant: ANPEC ELECTRONICS CORPORATION

Inventor： Jen-Chien Hsieh ,  Tsung-Yu Wu

IPC: H02M3/158 ,  G05F3/26 ,  G05F1/46 ,  G01R19/165 ,  G01R19/175 ,  H03K5/24 ,  H02M1/00

Abstract: A power converter is provided. A driver circuit is connected between a controller circuit and a switch circuit. The switch circuit is connected to an inductor. The inductor is connected in series with a first capacitor and grounded through the first capacitor. A first comparison input terminal of a first comparator is connected to an output terminal between the inductor and the first capacitor. A second comparison input terminal of the first comparator is grounded through a second capacitor. The controller circuit outputs a control signal for controlling the driver circuit to drive the switch circuit according to a comparison signal outputted by the first comparator. A reference current source provides a reference current to the second capacitor. A first terminal of a first resistor is connected to the second capacitor. A second terminal of the first resistor is coupled to a reference potential.

公开(公告)号：US12068689B2

公开(公告)日：2024-08-20

申请号：US17833847

申请日：2022-06-06

Applicant: ANPEC ELECTRONICS CORPORATION

Inventor： Jen-Chien Hsieh ,  Tsung-Yu Wu

IPC: H02M3/158 ,  H02M1/00 ,  H03L7/089 ,  H03L7/099

CPC classification number: H02M3/158 ,  H02M1/0016 ,  H02M1/0022 ,  H03L7/0891 ,  H03L7/099

Abstract: A power converter device is provided. A feedback circuit outputs a comparison output signal. A phase-locked loop circuit provides a phase-locked signal according to a reference clock signal and an inductor voltage in a power converter circuit. An on-time circuit provides an on-time comparing signal according to the phase-locked signal, an input voltage, the inductor voltage and an output voltage of the power converter circuit. A first input terminal of an SR flip-flop receives the on-time comparing signal from the on-time circuit. A second input terminal of the SR flip-flop receives the comparison output signal from the feedback circuit. A frequency control circuit, according to changes in the input voltage and the output voltage of the power converter circuit, instantaneously adjusts the on-time of the on-time signal such that an output terminal of the SR flip-flop outputs the adjusted on-time signal to the power converter circuit.

公开(公告)号：US10788518B2

公开(公告)日：2020-09-29

申请号：US16154295

申请日：2018-10-08

Applicant: ANPEC ELECTRONICS CORPORATION

Inventor： Tsung-Yu Wu ,  Yu-Yu Chen

IPC: G01R19/00 ,  H02H9/08 ,  G01R19/165 ,  H03K5/24 ,  H02H9/02

Abstract: A detection circuit and a switch module using the same is provided. The detection circuit includes a comparison circuit. A first input end of the comparison circuit is coupled to an output end of a power supply, and a second input end of the comparison circuit is coupled to an input end of a switch circuit. The comparison circuit compares voltage information or current information obtained via its first input end and it second input end, and accordingly generates an output signal. The output signal indicates whether there is an external resistor between the power supply and the switch circuit. According to the output signal, the switch circuit determines how a current provided by the power supply is to be detected, and accordingly continues or stops providing the current to a load.

公开(公告)号：US10574230B1

公开(公告)日：2020-02-25

申请号：US16278797

申请日：2019-02-19

Applicant: ANPEC ELECTRONICS CORPORATION

Inventor： Tsung-Yu Wu ,  Chih-Yuan Chen ,  Yu-Yu Chen

IPC: H03K17/082 ,  H03K17/68 ,  H02M3/07 ,  H03K17/66 ,  H03K17/72

Abstract: A power switch circuit includes a first switch circuit, a second switch unit and a capacitor. The capacitor has a first terminal coupled to a node between the first and second switch units. In addition, the capacitor has a second terminal coupled to the first and second switch units, a charge pump and a charging circuit. When the power switch circuit is coupled to a load, the charging circuit pre-charges the capacitor. Once the load is enabled, the first and second switch units are turned on by only a small voltage increase at the second terminal of the capacitor by the charge pump to allow power to be supplied to a load through the first and second switch units from a power supply.