Simple Current Limiter Circuit using Transistors gives tutorial to show how to make a circuit that stop giving too much power to other electronics. It helps to protect from overload by using two transistors and one special resistor. What is a Current Limiter Circuit using Transistors: A transistor current limiter circuit stops too much current […]
Power Supply Circuits
Simple Voltage Regulator Circuit using Transistor and Zener
This Simple Voltage Regulator Circuit using Transistor and Zener work like bodyguard for electricity. It uses one transistor like door keeper and one special Zener diode to keep voltage not going up-down. Zener diode gives fixed voltage and transistor follow that voltage to keep same for our device. This project is good when voltage goes […]
Simple Adjustable Power Supply Circuit
Many electronic things need clean DC power to work good. This post show how to make one easy Simple Adjustable Power Supply Circuit. It changes dirty DC power to clean power and it uses one chip called LM338. This circuit take DC from 5 to 34 volt and gives clean DC from 1.25 to 30 […]
High Voltage Fence Charger Circuit
This post shows how to make High Voltage Fence Charger Circuit. It does not cost much and is safe to stop wild animals and keep our pets inside fence. It cheap and easy to fix and is better than normal fence. WARNING: Electric fence can kill if wrongly made. Only do with adult help. Circuit […]
Simple High Voltage Generator Circuit
Anyone can learn how to make a Simple High Voltage Generator Circuit and this generator makes a very high frequency power. This article tell how to build this type of circuit . These things are not easy with normal power supply. One good thing of this high frequency power is that it does not give […]
220V SMPS Circuit using One Transistor
This article teaches how to make 220V SMPS Circuit using One Transistor, it connect to wall socket of 220V and only uses one transistor called MJE13005. No need for special chip or many extra parts to the control power. It uses one special diode and wire coil on transformer to control voltage in different way. […]