Thursday, November 20, 2014

Sine Wave To TTL Converter

Sine Wave To TTL Converter is a series that we can use to change the sine wave signal with a pulse shape with the same frequency with TTL logic level that we are ready to use in coding the data digitally . The series of Sine Wave To TTL Converter can...
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Wednesday, November 19, 2014

Transistor As a timer circuit

Basically on all timer or timer circuit utilizing most of the basic characteristics of the capacitor. The basic characteristic is the process of filling and discharge that occurs in the capacitor. The length of time charging and release depends...
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Audio Power Amplifier LM3886

Audio Power Amplifier is an important part in the reproduction of sound in a sound system. Audio Power Amplifier LM 3886 with power IC Audio Power Amplifier is a highly capable and able to produce 68 Watts with power rata2 4Ohm load and capable of producing...
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Tuesday, November 18, 2014

1000 Watt Power Amplifier

Power amplifier has up to 1000 Watt power, this circuit made one channel only so if you want to create a stereo in it must be made one again, actually this is more suitable power amplifier in use for Sound System or outdoor, so if only in use for the...
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Monday, November 17, 2014

Vertical IC Configuration

Various kinds of vertical out IC configuration.Ac coupling -connect from the yoke deflection output to a coil connected directly.Dc coupling - connected the output to the coil through a capacitor deflectioan yoke. Electrolityc Capacitors (usually worth...
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Sunday, November 16, 2014

PWM Motor Controller

PWM Motor Controller With Forward And Reverse is circuit controllers for DC motors controlled by PWM technique . The series PWM Motor Controller With Forward And Reverse It can control the DC motor rotation direction. Speed ​​control by PWM technique...
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Saturday, November 15, 2014

METAL DETECTOR CIRCUIT

Metal detector is very common devices for checking the person in shopping malls, hotels, cinema halls to ensure that person is not carrying any explosive metals or illegal things like guns, bombs etc. metal detectors can be created easily and the circuit...
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Friday, November 14, 2014

Digital to Analog Converter using Binary Weighted Resistors R 2R

The R-2R ladder DAC which is a binary-weighted DAC that uses a repeating cascaded structure of resistor values R and 2R. This improves the precision due to the relative ease of producing equal valued-matched resistors (or current sources). However, wide...
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Thursday, November 13, 2014

Transistor Schmitt Trigger Oscillator

.fullpost { display: inline; } The Schmitt Trigger oscillator below employs 3 transistors, 6 resistors and a capacitor to generate a square waveform. Pulse waveforms can be generated with an additional diode and resistor (R6). Q1 and Q2 are connected...
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Wednesday, November 12, 2014

Wireless Microphone simple

    Wireless Microphone simple Parts list: * T1,T2,T3: 2N2222 transistor* R1: 10k 5%* R2: 33k lin.* R3: 12k 5%* R4: 5.6k 5%* R5: 2.2k 5%* R6,R8: 47k 5%* R7: 470 ohms 5%* R9: 180 ohms 5%* C1,C2: 47nF* C3: 1nF* C4: 33pF* C5: 5.6pF* C6: 8.2pF*...
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Tuesday, November 11, 2014

Sunday, November 9, 2014

Saturday, November 8, 2014

Car Head Lights Turn Off

This circuit when setup in a car automatically turns off the head light after a preset time after the ignition switch is turned off.So you can walk out easily from the dark garage in the light of your car.Circuit diagram :Car Head Lights Turn Off ...
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Cheap Pump Controller

This simple but effective circuit can be used to control water level in a container. The prototype is used to pump water out of a bucket that collects condensation from a home air-conditioning system. The design is based around a 555 timer (IC1). Although...
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Thursday, November 6, 2014

Sound Activated Lights

This diy sound activated lights circuit turns a lamp ON for a short duration when the dog barks (or a relatively strong sound) giving an impression that the occupants have been alerted. The condenser microphone fitted in a place to monitor sound and...
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Precision Headphone Amplifier

Designs for good-quality headphone amplifiers abound, but this one has a few special features that make it stand out from the crowd. We start with a reasonably conventional input stage in the form of a differential amplifier constructed from dual FET...
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Wednesday, November 5, 2014

Battery Equality Monitor

Almost all 24V power systems in trucks, 4WDs, RVs, boats, etc, employ two series-connected 12V lead-acid batteries. The charging system can only maintain the sum of the individual battery voltages. If one battery is failing, this circuit will light a...
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Automotive Voltage Indicator

Monitors battery voltage, Three-LED Display. Connecting this circuit to the battery of your vehicle, you will always know at a glance the approximate voltage available. An indication of battery voltage is useful to the motorist for monitoring the batterys...
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Tuesday, November 4, 2014

Cable Tester

This cable tester allows you to quickly check audio cables for broken wires. Because of the low power supply voltage, batteries can be used which makes the circuit portable, and therefore can be used on location. Cable Tester Circuit diagram: The design...
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Simple Oscillator Pipe Locator

Sometimes the need arises to construct a really simple oscillator. This could hardly be simpler than the circuit shown here, which uses just three components, and offers five separate octaves, beginning around Middle C (Stage 14). Octave # 5 is missing,...
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Monday, November 3, 2014

Sunday, November 2, 2014