12V to 9V 2A step down dc converter using IC 741 and 2N3055

Thursday, November 6th, 2008

This circuit designs for modify power supply input 12V from battery or the other. Have the level voltage be down be left 9V be stable or , 9V at 2 Amp DC power supply . By this circuit gives usual equipment , seek easy. Be integrated circuit IC 741 and power transistor 2N3055. Besides this [...]

DC 12V to DC 6V-7.5V-9V Converter using 2N3055

Tuesday, October 21st, 2008

This circuit is DC to DC converter model step down voltage. That can modify voltage input 12V DC from be DC 6V , 7.5V and 9V by have the size current about 1A – 2 Amp think. Be easy circuit use Zener diode maintain one’s position voltage. Be stable and have transistor 2N3055. Perform enlarge [...]

12V to 5V 3A DC converter step down Regulator

Thursday, October 2nd, 2008

Today I has 12V to 5V 3A DC converter step down Regulator circuit come to deposit. In sometimes friends have power supply 12V 3A , but want Voltage 5V 3A for digital Circuit. This circuit can meet the demand of friends get , by it uses normal electronic part and have 7805 integrated circuits perform [...]