公开(公告)号：US12253409B2

公开(公告)日：2025-03-18

申请号：US17950217

申请日：2022-09-22

Applicant: ANPEC ELECTRONICS CORPORATION

Inventor： Yu-Yu Chen ,  Jia-Hua Hong ,  Chih-Yuan Chen

IPC: G01J1/16 ,  G01J1/42 ,  G01J1/08

Abstract: A light sensing method having a sensing order adjusting mechanism is provided. The method includes steps of: in a previous sensing cycle, sensing a first light signal that is emitted by both of an ambient light source and a light-emitting component and then is reflected by a tested object; in the previous sensing cycle, sensing a second light signal that is emitted by both of the ambient light source and the light-emitting component and then is reflected by the tested object; in the previous sensing cycle, sensing an ambient light signal emitted by only the ambient light source; and in a next sensing cycle, sensing the first light signal, the second light signal and the ambient light signal in an order different from that in the previous sensing cycle.

公开(公告)号：US09496788B2

公开(公告)日：2016-11-15

申请号：US14727725

申请日：2015-06-01

Applicant: ANPEC ELECTRONICS CORPORATION

Inventor： Yu-Yu Chen ,  Chih-Yuan Chen

IPC: H02M3/158 ,  H02M3/156

CPC classification number: H02M3/158 ,  H02M3/156 ,  H02M3/1584 ,  H02M2001/0048 ,  Y02B70/1491

Abstract: A multi-phase boost converter with phase self-detection and a detecting circuit thereof are provided. The multi-phase boost converter comprises M switching circuits, a capacitor, a control circuit and a detecting circuit. Each switching circuit has an input end and an output end. N inductors are coupled in parallel between the input ends and an input voltage. The output ends are coupled to an output voltage. The control circuit controls the conduction status of the switching circuits according to a feedback voltage corresponding to the output voltage. The detecting circuit coupled between the input ends and the control circuit detects the conduction status between the input voltage and each of the input ends, for outputting a first control signal. The control circuit controlled by the first control signal selectively controls at least one of the switching circuits. N is a positive integer less than or equal to M.

Abstract translation: 提供具有相位自检测的多相升压转换器及其检测电路。 多相升压转换器包括M个开关电路，一个电容器，一个控制电路和一个检测电路。 每个开关电路都有一个输入端和一个输出端。 N个电感器在输入端和输入电压之间并联耦合。 输出端耦合到输出电压。 控制电路根据对应于输出电压的反馈电压来控制开关电路的导通状态。 耦合在输入端和控制电路之间的检测电路检测输入电压和每个输入端之间的导通状态，用于输出第一控制信号。 由第一控制信号控制的控制电路选择性地控制至少一个开关电路。 N是小于或等于M的正整数。

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.

公开(公告)号：US09350241B2

公开(公告)日：2016-05-24

申请号：US14254927

申请日：2014-04-17

Applicant: ANPEC ELECTRONICS CORPORATION

Inventor： Hsiang-Chung Chang ,  Dong-Yi Liu ,  Yu-Yu Chen

IPC: G05F1/656 ,  H02M3/158 ,  H03K17/06 ,  H02M1/00

CPC classification number: H02M3/158 ,  H02M3/1588 ,  H02M2001/0032 ,  H03K17/063 ,  Y02B70/1466 ,  Y02B70/16

Abstract: The present disclosure provides a pair of NMOSFET switches connected in series, an output filter, a control circuit, a boot-strap capacitor and a disabling circuit. A high-side MOSFET switch is coupled to an input voltage. A low-side MOSFET switch is coupled to a ground. The high-side MOSFET switch and the low-side MOSFET switch have complementary duty cycles. The output filter is coupled to the NMOSFET switches to provide an output voltage. The boot-strap capacitor is coupled to the source of the high-side MOSFET switch. The voltage crossing the boot-trap capacitor is for making the gate voltage of the high-side MOSFET switch to be higher than the input voltage. The disabling circuit senses the voltage crossing the boot-strap capacitor, and generates a control signal to control the control circuit for continuously turning off the high-side MOSFET switch when the voltage crossing the boot-strap capacitor is less than a threshold voltage.

Abstract translation: 本公开提供串联连接的一对NMOSFET开关，输出滤波器，控制电路，引导电容器和禁用电路。 高端MOSFET开关耦合到输入电压。 低端MOSFET开关耦合到地。 高端MOSFET开关和低端MOSFET开关具有互补的占空比。 输出滤波器耦合到NMOSFET开关以提供输出电压。 引导电容器耦合到高边MOSFET开关的源极。 引导钳位电容器的电压用于使高侧MOSFET开关的栅极电压高于输入电压。 禁用电路感测穿过引导电容器的电压，并且当跨越引导电容器的电压小于阈值电压时，产生控制信号以控制控制电路，以连续关闭高边MOSFET开关。