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Audio : Power Amplifier Circuit with 2N3055

admin — Mon, 08 Mar 2010 05:23:56 +0000

Power Amplifier Circuit with 2n3055. Simple and low cost power amplifier. The optimal accumulation voltage is about 50V, but this amp assignment from 30 to 60V. The acute ascribe voltage is about 0.8 – 1V. As you can see, in this architecture the apparatus accept a big tolerance, so you can body it about of the components, which you acquisition at home. The and transistors can be any NPN blazon ability transistor, but do not use Darlington types. The achievement ability is about 60W.

Descriptions:

- capacitor C1 regulates the low frequencies (bass), as the capacitance grows, the low frequncies are accepting louder.

- capacitor C2 regulates the college frequencies (treble), as the capacitance grows, the college frequencies are accepting quiter.

- this is a chic B amplifier, this means, that a accepted charge breeze through the end transistors, alike if there is no arresting on the input. This accepted can be adapted with the 500? trimmer resistor. As this accepted incrases, the complete of the amplifier gets better, but the end transistors are added heating. But if this accepted decrases, the transistors are not heating so much, but the complete gets worse

Power Inverter : Inverter 100W IC 4047 2N3055 Circuit In

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Power inverter : 12VDC to 220VAC With Cmos 4047

admin — Sat, 06 Mar 2010 23:14:56 +0000

This converter has a central component, the CMOS 4047, and converts a 12V DC voltage to 220V AC voltage. 4047 is utilised as a astable multivibrator. At pin 10 and 11 we find a rectangular symmetrically signal which is amplified by tow Darlington transistors T1 and T2 and finally reaches the secondary coil of a transformer network (2 x 10V/60VA). Primary coil terminals voltage is 220 alternative voltage.

To obtain a better performance use a toroidal core transformer with reduced losses. With P1 the output frequency can be regulated between certain limits (50…400Hz).

Power Supply : Simple Power Supply 7812 7912

admin — Sat, 06 Mar 2010 10:22:31 +0000

Power supply on the only protected by capasitor as if the power supply is connected in series with the load. To power the power supply the more we can menggunakkan transistor TIP, but I have not membahasnya. Therefore I suggest using the minimal specification capasitor with 35V. To bridge dioda you can stack 4 of dioda then you become one solder bridge rectifier, or you can buy a bridge rectifier so that comb-shaped (sideways) or the box. Most dioda bridge I do not recommend using the 1 Ampere, in a series of adapter, the greater ampere dioda the better way in the current series. Dioda a toll road, and as the flow through the car. The large and wide toll road that is, the more rapid flow and run through a series of.

For the series of 5 V power supply, you can change the volt regulator on the type 7805 and 7905. This application applies the same in this series. For the series of variations such as the fuse or switch on / off you can try yourself.

+ 18 V transformer – at least 1 A CT

Capasitor at least 35 + V

Simple 5V Power Supply For Digital Circuits Project This circu
Dual Power Supply 15 Volt Some brand

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FM Transmitter : 1,5 Volt FM Transmitter 50 Meters Range

admin — Tue, 23 Feb 2010 22:33:03 +0000

Mini FM transmitters take place as one of the standard circuit types in an amateur electronics fan’s beginning steps. When done right, they provide very clear wireless sound transmission through an ordinary FM radio over a remarkable distance. I’ve seen lots of designs through the years, some of them were so simple, some of them were powerful, some of them were hard to build etc.

Here is the last step of this evolution, the most stable, smallest, problemless, and energy saving champion of this race. Circuit given below will serve as a durable and versatile FM transmitter till you break or crush it’s PCB. Frequency is determined by a parallel L-C resonance circuit and shifts very slow as battery drains out.

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Power Inverter : Inverter 100W IC 4047 2N3055

admin — Mon, 22 Feb 2010 23:44:48 +0000

Circuit Inverter 100W by IC 4047 + 2N3055

This circuit power Inverter input 12V (battery 12V)
to out 220V 50HZ, Eesy circuit because less component to use.
It use IC 4047 (oscillator 50HZ) and
Power Transistor 2N3055 x 2 ,OUTPUT Power 100W.

Power inverter : 12VDC to 220VAC With Cmos 4047 This conve
Audio : Power Amplifier Circuit with 2N3055 Power Ampl

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Simple 5V Power Supply For Digital Circuits Project

admin — Wed, 27 Jan 2010 12:45:26 +0000

This circuit is a small +5V power supply, which is useful when experimenting with digital electronics. Small inexpensive wall tranformers with variable output voltage are available from any electronics shop and supermarket. Those transformers are easily available, but usually their voltage regulation is very poor, which makes then not very usable for digital circuit experimenter unless a better regulation can be achieved in some way. The following circuit is the answer to the problem.

This circuit can give +5V output at about 150 mA current, but it can be increased to 1 A when good cooling is added to 7805 regulator chip. The circuit has over overload and therminal protection.

The capacitors must have enough high voltage rating to safely handle the input voltage feed to circuit. The circuit is very easy to build for example into a piece of veroboard.

Power Supply : Simple Power Supply 7812 7912 Power supp
Dual Power Supply 15 Volt Some brand

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Dual Power Supply 15 Volt

admin — Sun, 27 Dec 2009 12:46:51 +0000

Some brands of electrolytics have a small inductance which will cause the regulator ICs to oscillate. Use tantalum caps for C5/C6 to be sure (but also most normal electrolytics will work).

Power Supply : Simple Power Supply 7812 7912 Power supp
Simple 5V Power Supply For Digital Circuits Project This circu

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