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1. (CN107093926) Dual-power supply switching circuit assisting solar power supply

Office : China
Application Number: 201710499653.2 Application Date: 27.06.2017
Publication Number: 107093926 Publication Date: 25.08.2017
Publication Kind : A
IPC:
H02J 9/06
H ELECTRICITY
02
GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
J
CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
9
Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
04
in which the distribution system is disconnected from the normal source and connected to a standby source
06
with automatic change-over
Applicants: HEFEI SHANGSHUO NEW ENERGY CO., LTD.
Inventors: YANG YIJIN
WANG QINGYUN
Priority Data:
Title: (EN) Dual-power supply switching circuit assisting solar power supply
(ZH) 一种对太阳能供电进行辅助的双电源供电切换电路
Abstract: front page image
(EN) The invention discloses a dual-power supply switching circuit assisting solar power supply. The circuit comprises a first power supply input terminal, a second power supply input terminal, a breakdown diode, an N-type triode and an N-channel transistor. The first power supply input terminal is connected to a load and is connected to a cathode of the breakdown diode. An anode of the breakdown diode is connected to a base electrode of the triode. An emitting electrode of the triode is grounded and a collector electrode is connected to a grid electrode of the transistor. The grid electrode of the transistor is also connected to the second power supply input terminal. A drain electrode of the transistor is connected to the second power supply input terminal. A source electrode of the transistor is connected to the load. A power supply connected to the second power supply input terminal only works when a power supply connected to the first power supply input terminal is in an attenuation state, which means that the power supply connected to the first power supply input terminal under an abnormal state is supplemented through the second power supply input terminal.
(ZH) 本发明公开了一种对太阳能供电进行辅助的双电源供电切换电路,包括第一供电输入端子、第二供电输入端子、击穿二极管、N型三极管和N沟道晶体管;第一供电输入端子连接负载并连接击穿二极管负极,击穿二极管正极连接三极管基极;三极管发射极接地,其集电极连接晶体管栅极,晶体管栅极还连接第二供电输入端子,晶体管漏极也连接第二供电输入端子,晶体管源极连接负载。第二供电输入端子接入的电源仅仅在第一供电输入端子接入的电源衰减时进行工作,即通过第二供电输入端子对异常状态下的第一供电输入端子接入的电源进行补充。