Invention Grant
- Patent Title: Boost and LDO hybrid converter with dual-loop control
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Application No.: US15937947Application Date: 2018-03-28
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Publication No.: US10411599B1Publication Date: 2019-09-10
- Inventor: Chunlei Shi , Jongrit Lerdworatawee , Yu Pu
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agency: Qualcomm Incorporated
- Main IPC: H02M3/156
- IPC: H02M3/156 ; H02M3/158 ; G05F1/26 ; H02M1/00 ; G05F1/45

Abstract:
A boost and LDO hybrid converter with dual-loop control is disclosed. In some implementations, a hybrid converter includes an inductor having a first terminal to receive an input voltage and a second terminal; an n-type metal oxide semiconductor device (nMOS) having a drain coupled to the second terminal of the inductor; a p-type metal oxide semiconductor device (pMOS) having a gate, a drain, and a source, the source coupled to the second terminal of the inductor; an output capacitor having a first terminal coupled to the drain of the first pMOS; and a controller having a switch driver and a buffer, wherein the controller is configured to use the switch driver to drive the gate of the first pMOS in a boost mode and to use the buffer to drive the gate of the first pMOS in a low drop out (LDO) mode.
Public/Granted literature
- US20190305683A1 BOOST AND LDO HYBRID CONVERTER WITH DUAL-LOOP CONTROL Public/Granted day:2019-10-03
Information query
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