公开(公告)号：US11044435B2

公开(公告)日：2021-06-22

申请号：US16429047

申请日：2019-06-02

Applicant: QISDA CORPORATION

Inventor： Fang-Chieh Lu ,  Chi-Jen Chen ,  Chuan-Chu Chen ,  Ching-Ying Tsou

IPC: H04N5/63 ,  G03B21/14 ,  G03B21/20 ,  H04N7/04 ,  H04N9/31

Abstract: A driver circuit includes a first voltage conversion unit, a second voltage conversion unit, a third voltage conversion unit, a light driver and a control circuit. The first voltage conversion unit may convert a first voltage to a second voltage. The second voltage conversion unit may convert the second voltage to a third voltage in a non-electrically isolated manner. The third voltage conversion unit may convert the second voltage to a fourth voltage in a non-electrically isolated manner. The light driver may receive the third voltage and a control signal to generate a control current according to the control signal. The control circuit may receive the fourth voltage and an image signal to generate the control signal according to the image signal.

公开(公告)号：US11166358B2

公开(公告)日：2021-11-02

申请号：US16926840

申请日：2020-07-13

Applicant: Qisda Corporation

Inventor： Chuan-Chu Chen

IPC: H05B47/14 ,  G03B21/20 ,  H02M3/156 ,  H05B45/14

Abstract: A voltage setting value adjusting device includes a controller, a plurality of laser light sources and a voltage setting value adjusting circuit. The controller has a voltage setting value input end and a driving voltage output end. The laser light sources are coupled to the driving voltage output end, and the controller outputs a driving current to the laser light sources according to a voltage setting value. The voltage setting value adjusting circuit is coupled between the voltage setting value input end and the driving voltage output end to detect a driving voltage of the laser light sources and adjust the voltage setting value according to the driving voltage.

公开(公告)号：US09668329B2

公开(公告)日：2017-05-30

申请号：US14846837

申请日：2015-09-07

Applicant: QISDA CORPORATION

Inventor： Chi-Jen Chen ,  Fang-Chieh Lu ,  Chuan-Chu Chen ,  Ching-Ying Tsou

IPC: H05B33/08 ,  H05B37/02

CPC classification number: H05B33/0827 ,  H05B33/0857

Abstract: An electronic device includes a first light module, a second light module, a primary driver, and a first secondary driver. The first light module is used to emit a first light, and the second light module is used to emit a second light. The primary driver has a first control terminal for turning on the first light module during a first duration, and a second control terminal for turning on the second light module during a second duration. The first secondary driver is used to turn on the first light module during the second duration.

公开(公告)号：US10091473B1

公开(公告)日：2018-10-02

申请号：US15704009

申请日：2017-09-14

Applicant: QISDA CORPORATION

Inventor： Chi-Jen Chen ,  Chun-Hsiao Lin ,  Fang-Chieh Lu ,  Chuan-Chu Chen

IPC: H04N9/31 ,  G03B21/00

Abstract: A driver circuit includes a first voltage converter, a light source driver, a second voltage converter and a control circuit. The first voltage converter converts a first voltage to a second voltage. The light source driver is coupled to the first voltage converter, converts the second voltage to a third voltage and outputs the third voltage to a light source for providing light. The second voltage converter is coupled to the first voltage converter, converts the second voltage to a fourth voltage and outputs the fourth voltage. The control circuit is coupled to the second voltage converter to receive the fourth voltage and outputs a first control signal to control the light source driver for controlling the light source. The first voltage is lower than the second voltage, the second voltage is higher than the third voltage, and the second voltage is higher than the fourth voltage.

公开(公告)号：US20170071051A1

公开(公告)日：2017-03-09

申请号：US14846837

申请日：2015-09-07

Applicant: QISDA CORPORATION

Inventor： Chi-Jen Chen ,  Fang-Chieh Lu ,  Chuan-Chu Chen ,  Ching-Ying Tsou

IPC: H05B37/02

CPC classification number: H05B33/0827 ,  H05B33/0857

Abstract: An electronic device includes a first light module, a second light module, a primary driver, and a first secondary driver. The first light module is used to emit a first light, and the second light module is used to emit a second light. The primary driver has a first control terminal for turning on the first light module during a first duration, and a second control terminal for turning on the second light module during a second duration. The first secondary driver is used to turn on the first light module during the second duration.

Abstract translation: 电子设备包括第一光模块，第二光模块，主驱动器和第一辅助驱动器。 第一光模块用于发射第一光，第二光模块用于发射第二光。 主驱动器具有用于在第一持续时间内接通第一光模块的第一控制端子和用于在第二持续时间内接通第二光模块的第二控制端。 第一个次驱动器用于在第二个持续时间内打开第一个光模块。