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LED Emergency light
The portable LED lamp circuit with simple components are so easy to make. Here we are using high luminescent LEDs for making the lamp. The circuit needs 6V rechargeable lead acid as power supply.
The circuit will get AC 230V as input voltage, this supply collected by the step-down transformer that will regulate AC into fluctuated DC. The fluctuation is overcome by using bridge rectifier connected along with the transformer. The capacitor C1 stabilizes the DC supply on the circuit.
The 5V two channel relay used here to switch the power action ON/OFF when the power gets into the regulator IC 7805. There is a 6V DC battery used in the circuit in connection with the relay, in between the relay circuit the diode 1N4007 is used to direct the voltage path. The output pins from regulator IC 7805 and negative pole of the 6V DC battery are connected with the seven LEDs serially along with each resistor in one side.
(230V to 9V)500mA
|7.||Capacitor 100uF & 0.1uF||1|
|8.||Resistor 220 Ω||7|