12V To 220V AC Inverter With IC 555

Posted on July 17, 2013 by admin

Inverter circuit voltage 12 volt DC to 220 volt AC voltage in this article were built using IC waveform generator circuit 555 and a power inverter using transistors darlintor MJ3001. Inverter circuit 12 VDC to 220 VAC in the picture below is a square wave inverter type. The purpose of the inverter is a square wave inverter circuit with AC voltage output waveform box. Inverter with square wave output has a maximum power efficiency when applied to light illumination system. Simple inverter as shown in the figure below is often used as an AC voltage generator on the emergency lights.

12V To 220V AC Inverter With IC 555

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Inverter circuit 12 volt DC to 220 volt AC above is divided into sections that can be described as follows.

Wave generator section or multivibrator using a 555 timer IC as an astable multivibrator is set to the desired operating frequency 100-120 Hz which can be setup through 100 kohm potentiometer P1. This wave function generator circuit to generate pulse inverter power transistor driver. Astable multivibrator operating frequency is set to 100-120 Hz because it is used to provide input to the Flip-Flop Togle IC4013 which serves as a solver output pulse frequency driver with 0.5 times the input frequency.

Power inverter driver section serves to divide 2 pulse power transistor driver for inverter with input from the wave generator circuit IC 555. Positive pulse and negative pulse is always opposite the output transistors Q and Q sehignga power inverter will work alternately.

Power inverter section is constructed from Darlinton MJ3001 transistor that will provide transformers to drive untukmenghasilkan 220 volt AC output voltage. Power inverter section is constructed of 2 pieces of transistor MJ3001 and tranformer CT.

The circuit inverter 12 volt to 220 volt AC source voltage can be supplied from an accumulator 12 volt VCC through an inverter circuit 12V to 220VAC.

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300 Watt Power Amplifier

Posted on July 16, 2013 by admin

300 watts power amplifier circuit on this article has been full of pictures of the circuit, component layout and PCB for the circuit path 300 watt power amplifier. 300 watt power amplifier circuit uses transistors as its power amplifier. This 300 watt power amplifier works in class AB with symmetrical voltage source ± 60 volts DC. The power amplifier circuit using power transistors with type MJ15003 and MJ15004 transistors that are complementary. 300 watt power amplifier circuit is one that is designed as a power amplifier power amplifier can be used for public purposes or sound amplifier in an open location. Circuit power amplifier and a list of components to make a 300 watt power amplifier can be seen in the picture sequence below.

300 Watt Power Amplifier Circuit

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300 watt power amplifier circuit is a power amplifier that comes with a complete protection system. Overcurrent protection system and speaker protection systems have been installed in 300-watt power amplifier. as well as protection for the speaker system or often referred to as a speaker protector has been assembled in one block is composed by a series circuit IC2 and relay RE1 to connect to the loud speaker. Arrangement or component layout 300 watts power amplifier can be seen from the top view of the PCB below.

Layout 300 Watt Power Amplifier

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Speaker circuit protector or delay has been placed in 1 PCB with utam series 300 watt power amplifier. Then for the system wiring or PCB for 300 watts power amplifier circuit in the image above rangkian also been created and can be seen in the image below.

PCB Series 300 Watt Power Amplifier

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300 watts power amplifier circuit above can be used for the purposes of the audio system in the house and outside to the audio system. For power supply 300 watt power amplifier circuit above should use current transformers with capacities of 10 Ampere 300 watt power amplifier that can work optimally.

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Simple FM Transmitter Circuit

Posted on July 15, 2013 by admin

Simple FM transmitter circuit or mini FM transmitter can operate with a voltage source of +3 volts of 2 pieces of AA batteries. Beam distance of about 50 meters is good enough for a small transmitter with a voltage source of +3 volts from the battery. This simple FM transmitter circuit is built with 2 pieces of transistors, each of which serves as a microphone amplifier and a transmitter or FM transmitter. This mini FM transmitter circuit from a given input or microphone electret condenser microphone. This simple FM transmitter circuit can be viewed along with a list of components to make the FM transmitter in the image below.

Simple FM Transmitter Circuit

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L1 is a coil of wire containers email on 1/4 inch without a core of 6-8 convolution with 0.4 mm wire email

This simple FM transmitter circuit consists of two main parts:

  • Microphone pre-amplifier section, this section serves as a reinforcement signal from condenser mic that can be mixed with FM oscillator frequencies. Mic pre-amp circuit was constructed with a 2N3904 transistor voltage amplifier Q1 1 level.
  • FM transmitter section, this section serves as a carrier frequency FM stations transmit at the same time through the antenna. The circuit is built with oscillator 1 Q2 2N3904 transistor with a frequency that can be set through C4. To get more power can replace the transistors Q2 2N3904 2N5088 without changing the value and form of the existing circuit.

Working frequency range of an FM transmitter is simple to radio frequency band 87 MHz to 108 MHz, for safe conditions should be set at the lower range of an FM radio receiver. Working frequency setting fatherly simple FM transmitter circuit is done by adjusting the variable capacitor lever (trimer capacitor) C4 to be well received on the FM frequency range. This simple FM transmitter circuit can be applied as a wireless microphone receiver with a FM radio receiver.

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