The circuit diagram of emergency lamp circuit board

Published:2011/5/24 23:36:00 Author:Ariel Wang | Keyword: emergency lamp, circuit board | From:SeekIC

When we make it,X1selects secondary power transformer 6V/200mA for use. J1 and J2 use the relay of 6V coil voltage.Othe device selection you can refer to the diagram. There's no other requirements.It's very easy for circuit debugging.When main power supply is connected.J2 should act.LED1 is the indication of power supply. Then measurethe 3 leg voltage ,see if it is around 6.9V.After that it's possible to use external power to access IC 2 feet to adjust chargement to protect circuit. When input voltage is beyond 6.9V,J1 should disconnect . When S1 is disconnected,you can use external power to access emergency lamp circuit.Then you can measurewhether the output of IC2 is 50Hz or not.Then it's possible to measure wether partial output voltage of X2 is around 220V.LED3 is theprediction ofwhether it is power failure or normal working status of emergency lamp. 　



Reprinted Url Of This Article:
http://www.seekic.com/circuit_diagram/Power_Supply_Circuit/The_circuit_diagram_of_emergency_lamp_circuit_board.html

Print this Page | Comments | Reading(3)