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公开(公告)号：US20190115829A1
公开(公告)日：2019-04-18
申请号：US16001073
申请日：2018-06-06
Applicant: QUALCOMM Incorporated
Inventor： Hector Ivan OPORTA , Zhaohui ZHU , Chunping SONG , William RADER
Abstract: Certain aspects of the present disclosure generally relate to methods and apparatus for powering up a charge pump converter and providing protection and soft-start circuitry therefor. One example charge pump converter generally includes a first transistor and a second transistor coupled in series between an input voltage node and an output voltage node of the charge pump converter, a first capacitive element having a first terminal coupled to a node between the first and second transistors, and a first switch coupled to the input voltage node, the first switch being configured to selectively enable a first drive circuit having an output coupled to a control terminal of the second transistor.
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