Title:
DRIVER CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2020/215277
Kind Code:
A1
Abstract:
A driver circuit, comprising a boost converter and M charge pumps, where M is an integer greater than or equal to 1. The boost converter is connected to the first charge pump in the M charge pumps; the i-th charge pump in the M charge pumps is connected to the (i-1)-th charge pump in the M charge pumps, wherein i=2, 3, ..., M; the boost converter is used for boosting a first voltage input to the boost converter to a second voltage; the J-th charge pump is used for boosting a voltage input to the J-th charge pump by the second voltage, and the J-th charge pump is any one of the M charge pumps. The embodiments of the present invention can improve the conversion efficiency.
Inventors:
HU JIAJUN (CN)
LI HUI (CN)
WANG PENGFEI (CN)
LI HUI (CN)
WANG PENGFEI (CN)
Application Number:
PCT/CN2019/084305
Publication Date:
October 29, 2020
Filing Date:
April 25, 2019
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H02M3/07; F21V23/00
Foreign References:
| CN108365742A | 2018-08-03 | |||
| CN103475213A | 2013-12-25 | |||
| CN1858980A | 2006-11-08 | |||
| US20180211588A1 | 2018-07-26 | |||
| CN201066822Y | 2008-05-28 |
Attorney, Agent or Firm:
SCIHEAD IP LAW FIRM (CN)
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