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 Power Amp Super Bridge 120W by IC TDA2030

Tuesday, September 23rd, 2014

This be Super Bridge 120W Power Amplifier by IC TDA2030 for you like the circuit amplifies that use the integrated circuit. and Transistor BD249 or TIP31 or TIP41 or C1061 and BD250 or TIP32 or TIP42 or A671. It is nice circuit and easy to use. Schematic diagram of Power Amp Super Bridge 120W by […]

 Inverter 12V to 220V 100W by Transistor

Friday, September 19th, 2014

This circuit is 100 watt power inverter using power transistor 2N3055. It is designed for you that need to use appliances at outdoor or no electrical places. Someone use it in car or the high mountain etc. The maximum output power of this circuit about 100 watts, it is suitable for a normal lighting (all […]

 555 audio ohmmeter circuit

Thursday, September 18th, 2014

555 audio ohmmeter circuit This is a 555 audio ohmmeter circuit. Some times, we need to measure roughly the resistances only. In this we can know the resistances by the audio so also fast check. This circuit will use the resistors that unknown value to compare with many the reference resistors. In Figure 1 is […]

 Wien bridge oscillator circuit

Wednesday, September 17th, 2014

This wien bridge oscillator circuit which is normal,low distortion and can easily adjust the resonance frequency that depends on the pair of the resistors (R) and capacitors (C). Which we can calculate by the formula. F = 1/2 p RC In this circuit as Figure 1 the oscillator are based by the R that include […]

 3000 watts Dimmer for Inductor Load

Saturday, September 13th, 2014

This is the 3,000 watts Dimmer for inductor load example: the Electric Fan, AC motor,Electric drill etc. But most general dimmers is used for resistors load only such as lamp, soldering iron, heating coil,etc. Why our project can do? The normal dimmer cannot use for inductor load, because the phase of current and voltage drop […]

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