Title:
LIGHTNING PROTECTION CIRCUIT OF LED STREET LAMP DRIVING POWER SUPPLY
Document Type and Number:
WIPO Patent Application WO/2019/024416
Kind Code:
A1
Abstract:
A lightning protection circuit of an LED street lamp driving power supply, comprising a I-stage lightning protection circuit (001), a II-stage lightning protection circuit (002), an EMI circuit (003) circuit, a rectification filter circuit (004), a III-stage lightning protection circuit (005), a transformer (T1), a secondary circuit (006), a switching circuit (007), a control circuit (008), a IV-stage lightning protection circuit (009), and a V-stage lightning protection circuit (100). A first input end, a second input end, and a third input end of the I-stage lightning protection circuit are respectively connected to a live wire end (L), a neutral line end (N), and a ground end (FG) of an power input end (L); the first input end, the second input end, and the third input end of the I-stage lightning protection circuit are respectively connected to the first input end, the second input end, and the third input end of the II-stage lightning protection circuit; the first input end and the second input end of the II-stage lightning protection circuit are respectively connected to the first input end and the second input end of the EMI circuit. The lightning protection circuit of the LED street lamp driving power supply can solve the problem in the existing LED street lamp of poor lightning protection performance, and can improve the lightning protection reliability of the street lamp driving power supply.
Inventors:
PENG GUOYUN (CN)
HE LINBO (CN)
HE LINBO (CN)
Application Number:
PCT/CN2017/119899
Publication Date:
February 07, 2019
Filing Date:
December 29, 2017
Export Citation:
Assignee:
SHENZHEN DARK ENERGY POWER SUPPLY CO LTD (CN)
International Classes:
H05B37/02; H02M3/28; H05B44/00
Foreign References:
| CN205726524U | 2016-11-23 | |||
| CN202190073U | 2012-04-11 | |||
| CN204836682U | 2015-12-02 | |||
| US20100231138A1 | 2010-09-16 |
Attorney, Agent or Firm:
BEIJING UTC LIANFENG INTELLECTUAL PROPERTY AGENCY (GENERAL PARTNERSHIP) (CN)
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