12V to 300V DC-DC converter circuit

DC Power Supply 300V From battery 12V

This is a 12v to 300v dc-dc converter circuit using  2N3055 transistors and 2N1305 are pillar equipment and power transformer transform the sky tallly go up then change voltage regulator rectifier with diode and Capacitors make output have voltage about 300V at Current 55mA. With this circuit a friend can apply the work next. Request … Read more

How to use a phototransistor circuit | Light controller switch

How use phototransistor-circuit Light controller switch

I am going to show you how to use a phototransistor circuit is simple. To make it a light controller switch or relay with basic components like a transistor, IC, and more. Imagine when The Sunlight then the Relay Switch on to load as a fan runs. we are happy. Then sundown. the relay switch … Read more