Simple Variable Power Supply Circuit for Benchwork

In case you assess the cost and the rating of this simple variable bench power supply you may receive a big surprise, as the output voltage and current tend to be totally variable between 0. . . 18 V and 0 . . . 1.8 A correspondingly and expenses have yet been maintained affordable. Referring […]

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Simple Dual Power Supply Circuit Without Center Tap

The article explains how to make a simple dual power supply circuit without using a center tap transformer rather any ordinary two wire transformer. This circuit is of interest not merely  because it uses a bell transformer  with a single secondary winding to  provide symmetrical voltages for  low-current applications but also  because the final output […]

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High Current LM317 Power Supply Circuit

The high current LM317 power supply circuit shown down the page makes use of an supplemental winding or possibly a independent transformer to deliver power to the LM317 regulator in order that the outboard pass transistors are able to work nearer to saturation and strengthen efficiency. To get decent efficiency the voltage with the collectors […]

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Simplest Variable 0-100V Power Supply Circuit

This simplest variable 0-100V power supply circuit will allow the user to get a seamlessly adjustable output voltage, which could e fixed at any desired level. The power supply ca handle as high as 10 amps which looks adequate for most electronic circuit requirement. A straightforward yet an effective technique of controlling a DC voltage […]

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High Current LM317 Variable Power Supply Circuit

You you are looking for a high current LM317 variable power supply circuit version then you have probably landed on the right post. Here you will find how an ordinary LM317 circuit could be converted into a high current 20 amp variable power supply circuit using just a few 2n3055 power transistors in conjunction with […]

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Electronic Fuse Circuit for Power Supply  

  Electronic circuit current fuse has gained popularity in recent times, especially when it comes to structured power resource and power assembled circuits. The classic fuse tube, which was quite popular once gets fused when placed on wrong PCB during testing, barring some hi-priced one. It is for this reason that many semi-conductors have lost […]

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Increasing LM317 Current with a Transistor

Increasing LM317 Current with a Transistor could be implemented in order to contribute an integral part of the overall current. The level of current contribution is ascertained using a resistor added in series with the 317 port in addition to a resistor installed in series with the emitter of the pass outboared transistor. In the […]

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How to Calculate Filter Capacitor for Smoothing Ripple

The short informative article talks about what can be ripple current in power supply circuits, the source of it and the way in which it usually is downsized or eradicated employing smoothing capacitor. What’s Ripple in Power Supply Circuits In most AC to DC power supplies the DC generation is obtained by rectifying the AC […]

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Constant Current Circuit for High Watt LEDs

The article reveals a simple regular constant current LED driver circuit that are available for easily working any specific preferred high watt LED. The universal high watt LED current limiter circuit described here may be incorporated with any crude DC supply source to get an excellent over current protection for the attached high watt LEDs. […]

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