公开(公告)号：US20200304013A1

公开(公告)日：2020-09-24

申请号：US16699086

申请日：2019-11-28

Applicant: uPI Semiconductor Corp.

Inventor： Chih-Wen Hsiao ,  Wen-Chieh Tsai

IPC: H02M1/08 ,  H02M3/156 ,  H03K17/082

Abstract: The disclosure provides a power switching circuit. The power switching circuit includes a driving circuit, a determining circuit, a first power switch, and a second power switch. The driving circuit outputs a first driving signal and a second driving signal. The determining circuit is coupled to the driving circuit and outputs a control signal to the driving circuit. The first power switch is coupled to a first input voltage and receives the first driving signal. The second power switch is coupled to a second input voltage and receives the second driving signal. When the first power switch and the second power switch are switched, the second driving signal rises from a first level to a preset level, and the determining circuit controls the driving circuit to utilize the first driving signal to turn off the first power switch.

公开(公告)号：US11121618B2

公开(公告)日：2021-09-14

申请号：US16699086

申请日：2019-11-28

Applicant: uPI Semiconductor Corp.

Inventor： Chih-Wen Hsiao ,  Wen-Chieh Tsai

IPC: H02M1/08 ,  H03K17/082 ,  H02M3/156

Abstract: The disclosure provides a power switching circuit. The power switching circuit includes a driving circuit, a determining circuit, a first power switch, and a second power switch. The driving circuit outputs a first driving signal and a second driving signal. The determining circuit is coupled to the driving circuit and outputs a control signal to the driving circuit. The first power switch is coupled to a first input voltage and receives the first driving signal. The second power switch is coupled to a second input voltage and receives the second driving signal. When the first power switch and the second power switch are switched, the second driving signal rises from a first level to a preset level, and the determining circuit controls the driving circuit to utilize the first driving signal to turn off the first power switch.

公开(公告)号：US10103727B1

公开(公告)日：2018-10-16

申请号：US15916180

申请日：2018-03-08

Applicant: uPI Semiconductor Corp.

Inventor： Chih-Wen Hsiao ,  Wen-Chieh Tsai

IPC: H03K17/16

Abstract: A power switch circuit includes a first input voltage, a first switch element, a switcher, a first bootstrap capacitor, and a second bootstrap capacitor. The first switch element includes a first control end, a first input end, and a first output end. The first input end is coupled to the first input voltage. The first output end provides an output voltage. The switcher is coupled to the first switch element. The first bootstrap capacitor is coupled to the switcher and provides a first driving voltage. The second bootstrap capacitor is coupled to the switcher and provides a second driving voltage. The first bootstrap capacitor and the second bootstrap capacitor alternately supply the first driving voltage or the second driving voltage to the first control end through an operation of the switcher.