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Emergency Light Circuit of Mini 9013



Emergency Light circuit scheme of mini 9013
This is a mini series of Emergency Lighting (simple) that serves to provide the lighting when the lights power outages. Emergency lights can be used for e.g. exits, corridors, or in the alley. But this series is not suitable for practical applications because of the small size and short duration. Do not use a transformer circuit so that it looks so simple and costs that are reasonably priced.



List of Components:
Q1, Q2, Q3  __ CS9013 or BC337 NPN transistors 9014 or 0.8 A 100V
D1 __ 1N4004 __  1A 400V Diode or 1N4007 (1000V)
D2 __ 1N4148 __ 75V 150mA Diodes
C1 __ 47uF 50V __ Electronlytic capacitors
R1 __ 220K __ 1/2W ___ resistors
R2 __ 33 k __ 1W resistors
R3 __ 10 k __ 1/2W ___ resistors
R4 __ 1 k __ 1/2W ___ resistors
R5 __ 15 k __ 1/2W ___ resistors
Lamp 2.4 V 5W

How it works:
When the electricity dies then the power/voltage of electricity to be lost, until a series of mini is built with 3Volt voltage it will work and turn on the lamp L1. R2, R3, D1 and C1 is connected as the power supply DC approx. 4.5 V. D1-diode used as a rectifier to convert from AC to DC. And C1-capacitor is used to smooth the signal fluctuates (DCV as pulses).

Under normal conditions, the flow of current through the R4 for current limiting for Q1, and it will then be an NPN transistor as a switch that controls the flows, from the R5 to CE Q1 to ground pin. Therefore, there is no current to the base of Q2, Q3 so the Lamp L1 is off. When the electricity dies then Q1 off, current can flow through the base of Q2, Q3, then the lights will light up.

For a voltage of 3 volts, the friend of a friend can use NiCad batteries or rechargeable batteries NiMH 1 .2V size x 2. This will provide enough light. When the electricity dies then the system will work so that the lamp will light up. Use of the SW1 switch on or off for this circuit.

Friend of a friend was able to build the project on a Universal PCB Board because some of the components. But we have to be careful with AC voltage should be placed on an insulating box.


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