Function Generator

by _Boltz_

5.5K4311

Intro: Function Generator

Greetings, everyone!


Are you in search of an affordable solution for a function generator? If purchasing one isn't your preference, you can embark on this exciting tutorial to create your own. A function generator proves to be an essential tool for numerous projects. In my case, I utilized it to construct wireless power transmission modules. Through extensive online research, I discovered a remarkable and remarkably simple method to build one.


Central to this project is the versatile IC ICL8038, which offers an output of sine, saw, and square waves within a frequency range spanning from 150Hz to 150KHz. 


Your support and votes for Remix 2.0 would be greatly appreciated.


Let's commence our journey to build this amazing function generator together!

STEP 1: Material and Components Required

Let's browse what we all need.

1. 3x10K Potentiometer.

2. 1x1K variable resistor(I've used a trimpot one) .

3. 1x4.7K variable resistor .

4. IC ICL8038.

5. 1xTransistor 2N1613.

6. 1xDC Jack.

7. Wire Terminal.

8. 1x 4 terminal rotary switch.(or any sort of switch for tuning, due to lack of availability I've use dip switches)

9. 15k and 2M Resistor.

STEP 2: THE CIRCUIT

Presenting the circuit diagram for our function generator project. Follow the provided circuit layout, but instead of the 1M resistor, substitute it with a 2M resistor. If you prefer, you can even create a PCB (Printed Circuit Board) for this circuit. If you require the Eagle file for this project, kindly leave a comment expressing your interest, and I will gladly upload it for you.

Eagle Files

STEP 3: Power Up

Power up your function generator, and it's ready to be deployed.

STEP 4: Updates

*********4/10/16*********

Added github link to cad files

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11 Comments

geller6980 8 years ago

would be good to know what a function generator does to know if I need it

rossak 7 years ago

It generates the functions.

_Boltz_ 8 years ago

depends............. the same answer........... have a look to the datasheet....... of your full part number i.e ICL8038"XX" (Without inverted commas)

_Boltz_ 8 years ago

#Rahul540 I think you should have look to the IC's datasheet....... It has answers to all your asked and unasked questions

rahul540 8 years ago

What is the equation for count a frequency

_Boltz_ 8 years ago

A function generator is used to generate electrical waves(sine, square, Triangle, saw) of different frequencies..... This one has capability to generate sine, saw and square waves of frequency ranging from 150Hz to 150KHz.... For more info on the circuit you can download the datasheet for IC ICL8038

Ferrerow 8 years ago

How can i make the frequency waves ranging from 0Hz to 150KHz?

_Boltz_ 8 years ago

you can use a microcontroller for that..... and two transistors........ and some potentiometers........ you have to make those blink programs..... and have to use potentiometers to tune the frequency........