Function Generator by IC 1458
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.
Source : Function Generator by IC 1458
Other circuits
Simple Function generator with LM566 The simple Function generator two waveform, It produces triangle and square waves from 1Hz up to 1MHz. The Amplitude, offset…….More
Function Generator using LF351 A function generator using the ICL8038 integrated circuit. Is has four ranges and capable of sine, square and triangle outputs………More
IC 4049 Clock Pulse Generator We can bring the inverter CMOS digital IC, to design the Square wave oscillator generator circuit or pulse generator diagram, to a lot circuit been simplified……….More
Tone generator circuit by 555 timer Simple, low component count tone generator. It can be adapted to create a morse code circuit, by adding a switch to the output……..More
Ramp Generator by 2N4891 This be Ramp Wave Generator Circuit by use UJT , 2N4891 numbers are important equipment. By Q2 take Voltage of C1 and give Output……..More
Gate Tone Generator using IC 4011 Here is the tone generator circuit,it is small size. I use IC digital Cmos 4011 quad NAND gate. This will cause another NAND gate to pulse oscillater which will drive another gate to output a 1.3KHz tone…….More
