Very simple voltmeter with ic741
This circuit can be used to measure the voltage to 15 volts.Using the current from the battery 9 volt,At 23 mA only. Input circuit has a diode, to protect the Return terminal. And input impedance of...
View ArticleVoltage to current using op-amp and power transistor
This circuit changes the voltage to current, can provide dc current characteristics and AC so-so Circuit consists of 3 op-amps, 2 transistors is moderate. Passive devices and only a little. This...
View ArticleFull wave rectifier with an op amp IC
This circuit acts rectifier the ACV signal.This circuit usually requires two op-amp, but this circuit uses only one op-amp. The work is easy when a positive input into, The D1, D2 will does not work....
View ArticleIncrease output current of the op-amp IC LM324 in 85mA size
__The op amp output current can generally be in the range of 20 to 40mA. and The LM324 has numerous applications. Quad/ 1MHz/ Operational Amplifiers for Commercial/ Industrial/ and Military...
View ArticleSingle IC Power Supply by 78xx
circuit Single IC Power Supply by 78xx This be DC power supply Regulator , that older use 78xx integrated species circuits perform to wait for control the level voltage be stable always. By you have...
View ArticleAdd Beautiful Car brake lights using BC327
This is the circuit add beauty to the brake lights of the car. With a display of 14 LEDs, visible clearly, for safety and beautiful. The installation format can fix by oneself as you like it. This...
View ArticleMini Emergency Lighting
This mini emergency lighting are used to automatically give lighting when ac line power go out. Which they consist of one lamps, a battery, and a low voltage sensor. This projects design take...
View ArticleSingle Polarity Supply circuit using IC -LM741
This is a simple Single polarity (negative to positive polarity) power supply circuit,For education, the work of a series op amplifiers.Since we use the input pin is a pin non inverting, it is an...
View ArticleA microphone from the speaker
Operation of the circuit. be When entering the power supply circuit for Q1 will work as an amplifier in common base.That matching the input impedance of the Impact of Impact Speaker impedance low.When...
View ArticleSingle transistor phase shifter
This is a basic NPN transistor circuit which it provides a simple mean of obtaining phase shifts between zero and 170 degree. The BC108 transistor works as a phase splitter, the output at...
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