Title:
SUPER-CAPACITOR APPLICATION CIRCUIT OF REPLACEABLE BATTERY TYPE SMART ELECTRIC ENERGY METER POWER SUPPLY
Document Type and Number:
WIPO Patent Application WO/2019/218882
Kind Code:
A1
Abstract:
A super-capacitor application circuit of a replaceable battery type smart electric energy meter power supply. The circuit comprises a transformer T1, a rectifying circuit, a voltage stabilizing circuit and a sampling circuit, and further comprises a dual-super-capacitor clock backup power supply circuit. The dual-super-capacitor clock backup power supply circuit comprises a clock chip, an electric energy meter processing unit, an anti-reverse diode D5, a super-capacitor C6 and a charge-discharge resistor R6, wherein an input end of the super-capacitor C6 is connected to an output end of the charge-discharge resistor R6, and an output end of the super-capacitor C6 is grounded. Therefore, the trickle charge current is very low, and the service life of the super-capacitors C4 and C6 is prolonged.
Inventors:
SHI RONG (CN)
WU HONGYING (CN)
XU ZHENWEI (CN)
LI XIANG (CN)
LANG GANYONG (CN)
ZHU GAOKAI (CN)
PAN JIANHUA (CN)
LIU JING (CN)
YANG YONGGUANG (CN)
WU HONGYING (CN)
XU ZHENWEI (CN)
LI XIANG (CN)
LANG GANYONG (CN)
ZHU GAOKAI (CN)
PAN JIANHUA (CN)
LIU JING (CN)
YANG YONGGUANG (CN)
Application Number:
PCT/CN2019/085600
Publication Date:
November 21, 2019
Filing Date:
May 06, 2019
Export Citation:
Assignee:
YANGZHOU WANTAI ELECTRONIC TECH CO LTD (CN)
International Classes:
H02J9/04; H02J7/34
Foreign References:
| CN108429332A | 2018-08-21 | |||
| CN208112325U | 2018-11-16 | |||
| CN206922483U | 2018-01-23 | |||
| CN107658942A | 2018-02-02 | |||
| CN106849329A | 2017-06-13 | |||
| JP2011010453A | 2011-01-13 | |||
| US20070236839A1 | 2007-10-11 |
Attorney, Agent or Firm:
YANGZHOU SUWEI INTELLECTUAL PROPERTY AGENCY (GENERAL PARTNERSHIP) (CN)
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