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Recent New Posts

 Over and Under voltage protection of electrical appliances

Friday, July 11th, 2014

This is an over and under voltage protection to all electrical appliances are safe. We use electronics circuits, high accurate work is fast LM393, AN6780 and more. Which cut off currents with power relay. I’ve presented this way, it is Over & Under Voltage protection circuit. But today, I’d recommend this because there is a […]

 12V battery to 5V 1500mA DC converter regulator

Thursday, July 10th, 2014

This is a 5V 1500mA DC regulator circuit. which is simple circuit using IC-7805 to fixed regulator 5 volts and TIP41-NPN power transistor to increase current up to 2A. Example experiment. I use the power supply for 12V battery. To reduce constant pressure 5volts. I try to load is 4.7 ohms 5W resistors principles it […]

 Boost converter 5V to 12V

Tuesday, July 8th, 2014

This circuit offers a variety of Buck DC to DC converters. Because as circuit increase voltage of 5 volts to 12 volts. This circuit is called Boost converter circuit. The primary circuit is shown in Figure 1. According to primary circuit, when switch (S) Closed cause a voltage drop across L, or Caused UL is […]

 Guitar Preamp – over drive using 12AU7

Tuesday, July 8th, 2014

This is a guitar booster for those with a love for music. act as preamplifier or over drive signal acts soft voice before to the power amplifier or headphones. Highlight is a very clear sound without noise. Because we use 12AU7 vacuum tubes is the main equipment, which is better than any other preamp circuit. […]

 We should use IRF540N HEXFET Power MOSFET

Monday, July 7th, 2014

An IRF540N is HEXFET Power MOSFET that I like to use in many projects. It is very Fast Switching than general transistor. When I compare it with a transistors that I like to use is a TIP41. It have IC ( collector current) about 2A and VCE( collector-emitter voltage) about 40V only. The IRF540N is […]

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