triangular and rectangular signal generator

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Lexa1

New Member

• Apr 30, 2020

• #1

how can I create a triangular and rectangular signal generator that has a frequency between 1000 and 5000 Hz, the amplitude of the triangular signal between 4V and 10V and the amplitude of the rectangular signal between 0.5 and 7 V .I would at least need a circuit. I could also calculate the values of the components

 

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schmitt trigger

Well-Known Member

Most Helpful Member

• Apr 30, 2020

• #2

Google the XR2206 function generator IC.

It is obsolete, but you can still find devices available.

 

ClydeCrashKop

Well-Known Member

Most Helpful Member

• Apr 30, 2020

• #3

Waveform Generator Module 8038
$9.95

Waveform Generator Module 8038

Handy module that generates selectable Sine, Square or Trianglar waveforms. Power: 12-15VDC Adjustable Output Level Distortion: 1% Sine Wave Square Wave duty cycle adj. 2-98% Triangle Wave Linearity: 0.1% Range: 10-450KHz in 5 jumper selectable overlapping ranges: ~10hz-450Hz ~90Hz-1.5KHz...

www.mpja.com

 

dr pepper

Well-Known Member

Most Helpful Member

• May 1, 2020

• #4

If your not bothered about a bit of distortion you could use a 555.
Pin 3 as I'm sure you know creates a square wave, pin 2&6 in astable moce has a triangle wave on it, not pure but close.
You'd need to buffer it with a transistor or op amp, you could vary the amplitude by varying the timers power supply.

 

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wkrug

Active Member

• May 1, 2020

• #5

A little Bit oversized, but...
DDS Generator

 

S

schmitt trigger

Well-Known Member

Most Helpful Member

• May 2, 2020

• #6

It appears that the thread starter has gone AWOL.

 

audioguru

Well-Known Member

Most Helpful Member

• May 2, 2020

• #7

The ICL8038 function generator IC is also obsolete and not made anymore. The maker of the kit must have some VERY old kits that did not sell.

 

crutschow

Well-Known Member

Most Helpful Member

• May 2, 2020

• #8

Below is the LTspice simulation of a square/triangle generator using two high-speed RR op amps.
The outputs are shown for the two limits on the pot setting.

For a variable output, you can add a pot at each out.

If you need a low impedance output, you can buffer the pot output with the two spare op amps in the package configured as non-inverting buffers.

 

Last edited: May 3, 2020