Led Emergency Light Circuit With Battery Overcharge Protection

First part is used to drop down the 220v ac voltage into 8v regulated dc with the help of transformer and bridge rectifier.

Led emergency light circuit with battery overcharge protection.

Light led strip etc when input power is removed. That does not make it good but its easy and cheapish and works reasonably well. A 12v 7 2ah battery can be used to light up to 100 leds. And second part consists of relay and rechargeable battery which is used to lighten the leds during power failure.

The circuit controls the charging of the battery by taking feedback of the voltage across the battery terminals. One part is the led lamp light circuit and the other is the battery charger circuit. With this circuit over night the battery will get charged fully. When the circuit is powered the voltage across base and emitter should be around 0v.

The post explains an led emergency light circuit with sophisticated capabilities such as over charge battery cut off day time auto disable and need less to say that the circuit switches on the leds instantly when ac mains goes wrong and reverts to charging mode when power is renewed. Diy led actually someone bring me a dp 716 emergency led lights lamp. This is manifested by the light emitting diode led which turned on when the battery is fully charged. The article describes an led emergency light circuit with advanced features such as over charge battery cut off day time auto disable and need less to say that the circuit switches on the leds automatically when ac mains fails and reverts to charging mode when power is restored.

Automatic led emergency light with under voltage cut off protection. This led emergency light circuit can be divided into two parts. You can find the circuit here. Here the circuit for a 6v automatic battery charger circuit with overcharge protection led charging indicator and current limiting feature.

Here you can see the whole story in images. Since this circuit diagram does not have battery overcharging protection it is advisable to connect a 13v zener diode across battery terminals. So i took the lamp for checking repairing. All current ratings and voltage ratings are perfectly calculated with basic and clear instructions.

Automatic led emergency lamp circuit with overcharge protection for 12v lead acid battery. A further modified version is also available where under voltage cut off protection is provided for the led emergency light circuit. Below is a lead acid battery charger circuit found in very similar form all over the web. Powerful cheap circuit led 716 led light schematic emergency led light circuit schematic simple project working operation.

Hope with the above guide line you can make your light work successfully.