Invention Grant
- Patent Title: Switching converter with analog on-time extension control
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Application No.: US17010418Application Date: 2020-09-02
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Publication No.: US11557969B2Publication Date: 2023-01-17
- Inventor: Zejing Wang , Zhujun Li , Songming Zhou , Yu Wang
- Applicant: TEXAS INSTRUMENTS INCORPORATED
- Applicant Address: US TX Dallas
- Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee Address: US TX Dallas
- Agent Ray A. King; Frank D. Cimino
- Priority: WOPCT/CN2020/082930 20200402
- Main IPC: H02M3/157
- IPC: H02M3/157 ; H02M3/158 ; H02M1/08 ; H02J7/00

Abstract:
A system includes: 1) a battery configured to provide an input voltage (VIN); 2) switching converter circuitry coupled to the battery, wherein the switching converter circuitry includes a power switch; 3) a load coupled to an output of the switching converter circuitry; and 4) a control circuit coupled to the power switch. The control circuit includes: 1) a switch driver circuit coupled to the power switch; 2) a summing comparator circuit configured to output a first control signal that indicates when to turn the power switch on; and 3) an analog on-time extension circuit configured to extend an on-time of the power switch by gating a second control signal with the first control signal, wherein the second control signal indicates when to turn the power switch off.
Public/Granted literature
- US20210313883A1 SWITCHING CONVERTER WITH ANALOG ON-TIME EXTENSION CONTROL Public/Granted day:2021-10-07
Information query
IPC分类: