Title:
SWITCHING-MODE POWER SUPPLY LIGHTNING PROTECTION APPARATUS AND SWITCHING-MODE POWER SUPPLY
Document Type and Number:
WIPO Patent Application WO/2017/181806
Kind Code:
A1
Abstract:
A switching-mode power supply lightning protection apparatus and a switching-mode power supply. The lightning protection apparatus comprises a lightning protection circuit (1), a current limiting circuit (2), a rectifier circuit (3) and a power factor correction (PFC) circuit (4), wherein two input terminals of the current limiting circuit (2) are respectively connected to an L-line output terminal and an N-line output terminal of the lightning protection circuit (1), two input terminals of the rectifier circuit (3) are respectively connected to two output terminals of the current limiting circuit (2), the L-line output terminal of the rectifier circuit (3) is connected to a first input terminal of the PFC circuit (4) and a positive electrode of an electrolytic capacitor (C1), a negative electrode of the electrolytic capacitor (C1) is connected to a second input terminal of the PFC circuit (4) and the N-line output terminal of the rectifier circuit (3), and the N-line output terminal of the rectifier circuit (3) is also connected to ground; and a third input terminal of the PFC circuit (4) is connected to the L-line output terminal of the lightning protection circuit (1), and a fourth input terminal of the PFC circuit (4) is connected to the N-line output terminal of the lightning protection circuit (1). The lightning protection apparatus and the switching-mode power supply can improve lightning protection performance of a lightning protection circuit, thereby improving safety of lightning protection circuits.
Inventors:
LIN JINWU (CN)
Application Number:
PCT/CN2017/077544
Publication Date:
October 26, 2017
Filing Date:
March 21, 2017
Export Citation:
Assignee:
ZTE CORP (CN)
International Classes:
H02H9/02; H02M1/32
Foreign References:
| CN104703358A | 2015-06-10 | |||
| CN102905435A | 2013-01-30 | |||
| CN201928497U | 2011-08-10 | |||
| CN103795054A | 2014-05-14 | |||
| CN103151829A | 2013-06-12 | |||
| US20130100710A1 | 2013-04-25 |
Attorney, Agent or Firm:
AFD CHINA INTELLECTUAL PROPERTY LAW OFFICE (CN)
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