Title:
MULTI-LEVEL CAPACITIVE PRE-CHARGING CIRCUIT AND POWER SUPPLY DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/024848
Kind Code:
A1
Abstract:
A multi-level capacitive pre-charging circuit and a power supply device. When an input alternating current power supply (500) is connected, and a first switching device and a second switching device are in an off state, the input alternating current power supply (500) can pre-charge a flying capacitor by means of a circuit that is formed by connecting an inductor, the first switching device, the flying capacitor, a second auxiliary diode, an auxiliary resistor, an auxiliary capacitor, a second rectification device, and the input alternating current power supply (500) in series, and can also pre-charge the flying capacitor by means of a circuit formed by connecting the inductor, the input alternating current power supply (500), a first rectification device, the auxiliary capacitor, the auxiliary resistor, a first auxiliary diode, the flying capacitor, and the second switching device in series.
Inventors:
CUI YULONG (CN)
ZHOU JIANPING (CN)
LIN GUOXIAN (CN)
WANG QIA (CN)
ZHANG WEI (CN)
FAN SHANSHAN (CN)
DONG XIUFENG (CN)
ZHOU JIANPING (CN)
LIN GUOXIAN (CN)
WANG QIA (CN)
ZHANG WEI (CN)
FAN SHANSHAN (CN)
DONG XIUFENG (CN)
Application Number:
PCT/CN2022/109792
Publication Date:
March 02, 2023
Filing Date:
August 02, 2022
Export Citation:
Assignee:
ZTE CORP (CN)
International Classes:
H02M7/219
Foreign References:
| CN108667327A | 2018-10-16 | |||
| CN110401344A | 2019-11-01 | |||
| CN102916603A | 2013-02-06 | |||
| CN106230253A | 2016-12-14 | |||
| CN110829873A | 2020-02-21 | |||
| CN212381111U | 2021-01-19 | |||
| US20140001856A1 | 2014-01-02 |
Attorney, Agent or Firm:
JIAQUAN IP LAW (CN)
Download PDF: