Archive for the Category


0-30 Volts 2.5A Variable Power Supply using LM723

Monday, November 3rd, 2008
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This is a high quality power supply with a continuously variable stabilized output adjustable between 0 and 30VDC. the LM 723 is the heart of the power supply which drives the BD137 and then the 2N3055. The circuit provides short circuit protection. And has great stability at voltage changes. Drive the circuit with 24 Volts [...]

12.6V voltage regulator using PNP emitter follower

Friday, October 31st, 2008
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Today we come to see 12.6V Voltage Regulator Circuit. That use PNP Transistor be main electronic part. By it very the circuit in the character emitter follower or voltage follower make have high current about 0.7 Amp. The part that perform be formed fix voltage output are ZD1 [...]

The MicroPower SE

Friday, October 31st, 2008
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A ‘micro power solar engine’ has been a goal since my introduction to BEAM Robotics. I believe that if there wasn’t one before, I there is one now. What I’m presenting to you looks very similar to one of the circuits found in Steven Bolt’s web pages. As you will see, I made only minor [...]