Posts Tagged ‘function generator’

Simple function generator using LM1458

As usual the function generator will be expensive and difficult.However, this is a simple circuit with only two ICs.
This circuit is suitable for experiments. The output is 3 waveform , Square wave signal amplitude 7Vp-p, Triangular wave = 2Vp-vp and sine wave = 2Vp-p all have the frequency 1kHz.
We use 2 x LM1458 IC number, is the main equipment this a dual op-amp IC. This circuit uses op-amp 4 section, follow circuit image.
The IC1a is square wave generator, Assumed initial, C1 is charging voltage at inverting input pin to zero, Until voltage at non inverting input voltage is slightly positive.(A ratio of the op-amp output offset voltage determined by R1 and R2)
This time difference of the voltage input Enough to make the output of an op-amp in the volatility as a “high”.
When the output becomes high, C1 begins charging, the voltage at pin inverting, start over non-inverting input, an output swing to push down to zero.
which C1 Discharging again.
This is different from the first round, the amplifier output to an inverse alternating between low and high indefinitely. This produces a rectangular signal.
In the middle of the second op-amp. Defined as is integrator system, the input of the op-amp second is a square wave signal. The object of the first op-amp,.
The output of the op-amp is a triangle wave, whose amplitude is 2Vp-p only.
The triangular signal through op-amp 3, which determines the signal integrator, The output its image as a sine,.
Through to the fourth op-amp to amplify the signal to increase, with the inverting amplifier, the signal phase with the third op-amp.
This circuit use power supply: +9 V and-9V, IC number RC4558, or LF353 ICs used instead.

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Function generator circuit

Function generation circuits, suitable for use or test the various electronic circuits. The circuit uses IC to work directly. The high efficiency. In some circuits, a simple device. Basic, making it a simple and affordable.

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Single supply Function Generator by TLC271

The circuit has both square-wave and triangle-wave output. The left section is similar in function to a comparator circuit that uses positive feedback for hysteresis. The inverting input is biased at one-half the Vcc voltage by resistor R4 and R5. The output is fed back to the non-inverting input of the first stage to control the frequency.
The amplitude of the square wave is the output swing of the first stage, which is 8V peak-to-peak. The second stage is basically an op amp integrator.
The resistor R3 is the input element and capacitor C1 is the feedback element. [...]

Read more Source:http://www.circuitsuggest.com/single-supply-function-generator.html

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