This circuit shows about FET overload current protection using transistor and MOSFET. If the load draws too much current or the output gets short-circuited then this Overcurrent Protection Circuit using Transistor and FET can help you. The main purpose of this circuit is to protect load from high current, like when current increases above limit […]
Transistor Based 12V Emergency Light Circuit
This project is for Transistor Based 12V Emergency Light Circuit system, which gives light when main power fails. The circuit uses transformer, bridge rectifier, transistor, relay, battery and few other components. When AC supply is present, battery charges and lamp stays OFF and when AC power goes OFF then battery gives supply and lamp turns […]
220V Emergency Light Circuit without Transformer
Like our previous tutorial on emergency light circuit, here is another post on 220V Emergency Light Circuit without Transformer. Today, power cut is common problem, so emergency light is very useful, as it gives light when mains supply is OFF. Usually, emergency light uses transformer but transformers are costly and bulky, therefore, this circuit is […]
Easy Emergency Light Circuit using Transistors
Power cut can come anytime, so our room becomes dark and feels very scary and bad. So, this small circuit gives light instantly, also there is no switch needed and no tension. Then light turns ON automatically and this happens because of simple and Easy Emergency Light Circuit using Transistors. Now, the circuit works like […]
7V Backup Power Supply UPS Circuit
Many small electronic circuits need continuous power supply but sometimes AC mains power fails, because of this our device stops working. Therefore, we need a small Uninterruptible Power Supply. If we need 5V to 7V power supply with about 0.5A current then this 7V Backup Power Supply UPS Circuit is a good option as it […]
Simple LM337 Based Precision LED Driver Circuit
LED needs stable current and when current becomes high then LED may burn, therefore, a regulator circuit is useful. This article is for Simple LM337 Based Precision LED Driver Circuit which is an negative adjustable voltage regulator but however, it can also control current. In this circuit the LED current stays stable and even if […]