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 […]
Power Supply Circuits
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. […]
5 Watt LED Driver Circuit (SMPS)
This 5 Watt LED Driver Circuit (SMPS) tell how to make power supply using wall plug to turn ON bright LEDs. It is made for white LEDs but also can work with blue, green, red, yellow, even UV light. What is a 5 Watt LED Driver Circuit: A 5 watt LED light is powered by […]
SMPS Halogen Lamp Circuit
SMPS Halogen Lamp Circuit mostly need transformer for working. This post talk about new type transformer using switching power supply. It is more simple than older transformers and can work with other bulbs too if they do no use radio wave RF. This new design also save energy. What is a SMPS Halogen Lamp Circuit: […]





