Dc Power Supply | Electronic Project Circuits

Posts Tagged ‘dc power supply’

DC Power Supply 9 volt using TIP31 transistor

Today I receives electricity old printer from a friend. I think it can’t is usable , but power supply circuit still can be usable , modify be power supply source in electronics all work. I then build to is DC Power Supply 9 Volt Regulator, that can give current get about 1 Amp arrive at 2Amp. By I sees part already modify transistor TIP31 and part come to can be usable well. By can fine decorate VR1 for have voltage 9V DC according to can fix for Transistor TIP31, a friend can use other number all right such as TIP41 , MJE3055 , 2SC1061 etc. But must stick heat sink be appropriate with. The detail is other , see in the circuit yes.

Be the first to comment - What do you think? Posted by admin - November 30, 2008 at 6:10 am

Categories: Power supply Tags: 9V power supply, dc power supply, generator regulator

DC Regulator supply 15V non transformer

Friends at don’t like large-sized of a transformer. I begs for to advise 15VDC regulator power supply can give the trend current get low about 80mA not exceed. But enough will usable small-sized circuit has comfortablely. Think I uses Zener Diode be formed help maintain one’s position volt be stable , and use Transistor help enlarge current tallly increasingly. Make this circuit is usable well , But friends as a result must use the carefulness specially , because apply to the level voltage tall directly yes.

Be the first to comment - What do you think? Posted by admin - October 27, 2008 at 6:33 am

Categories: Power supply Tags: 15V voltage Regulator, dc power supply, Transformerless-Power-Supply

Basic Dual DC Power Supply 6V

This be Basic Dual DC Power Supply 6V (+6Vdc CT -6Vdc) . Which easily give a little electronics component economize good. But inappropriate for the circuit that use current the very much. Because this circuit gives current 50mA only just. I hope that this circuit may help to solve a problem friends in the emergency please sir.