Invention Grant
- Patent Title: Switching regulator with driver power clamp
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Application No.: US18053417Application Date: 2022-11-08
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Publication No.: US11742743B2Publication Date: 2023-08-29
- Inventor: Chien-Lung Lee , Jin-Yan Syu
- Applicant: MEDIATEK INC.
- Applicant Address: TW Hsinchu
- Assignee: MEDIATEK INC.
- Current Assignee: MEDIATEK INC.
- Current Assignee Address: TW Hsinchu
- Agency: McClure, Qualey & Rodack, LLP
- Main IPC: H02M1/08
- IPC: H02M1/08 ; H02M3/158 ; H02M1/34 ; H02M1/32

Abstract:
A switching regulator clamping the power or ground of the power switch driver is introduced. In a buck regulator, the first power switch is coupled between the input terminal of the buck regulator and the first terminal of an inductor. The second terminal of the inductor is coupled to the output terminal of the buck regulator. The second power switch is coupled between the first terminal of the inductor and an internal ground of the buck regulator. There is a driver power clamp configured to clamp the power terminal of the driver of the second power switch when the first power switch is turned off. In a boost regulator, a driver power clamp is configured to clamp the ground terminal of the driver of the power switch that couples the input inductor to an output terminal of the boost regulator when another power switch is turned off.
Public/Granted literature
- US20230065722A1 SWITCHING REGULATOR WITH DRIVER POWER CLAMP Public/Granted day:2023-03-02
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