# Does any one know an inverter chip that uses 12V DC to make a signal with variable freq and Voltage?

#### Zakaria1193

May 20, 2015
3
Max power has to be 1W, the frequency has to go from 10 to 80kHz The voltage from one to twelve

#### Arouse1973

Dec 18, 2013
5,178
Hello
Can you be a bit more specific? What are you trying to do? Is 1 - 12 Volts the input or output, is 1W the total power of the circuit or the load requirements. is the output going to be a sine wave or something else. Tell us more about what your trying to do.

#### Zakaria1193

May 20, 2015
3
1W is the load requirement. The input voltage is 12V and the output variable from 1-12V. The output wave needs to be sinus or at least alternative with a frequency that we can also vary from 10 to 80KHZ. i know this can be done easily with a pwm signal, and an H bridge inverter but i don't want to lose time on making if i can find it in an integrated chip.
thanks

Last edited:

#### Arouse1973

Dec 18, 2013
5,178
1W is the load requirement. The input voltage is voltage V and the output variable from 1-12V. The output wave needs to be sinus or at least alternative with a frequency that we can also vary from 10 to 80KHZ. i know this can be done easily with a pwm signal, and an H bridge inverter but i don't want to lose time on making if i can find it in an integradted chip.
thanks

What is voltage V?

May 20, 2015
3
edited

#### Arouse1973

Dec 18, 2013
5,178

I don't know of an IC that will do all of this but I would look at sine wave output voltage to frequency converters if you can find one. Or a triangle wave generator put into a Trigonometric function generator to convert the triangle wave into a sine wave. But you are going to need some current drivers and a attenuator for the output.
Thanks

#### BGB

Nov 30, 2014
154
I don't know of an IC that will do all of this but I would look at sine wave output voltage to frequency converters if you can find one. Or a triangle wave generator put into a Trigonometric function generator to convert the triangle wave into a sine wave. But you are going to need some current drivers and a attenuator for the output.
Thanks

I would just assume plug something like an Arduino or similar into an L293 or similar, then write a little code to generate the appropriate PWM signals.

though, I guess for non-controller options, a person could use an L293 and a 555 timer and an adjustable voltage regulator and similar, using potentiometers to control the output settings.

but, no idea of any dedicated IC to do this task.

likewise, generally a person may still need to use BJTs or MOSFETs or similar if they need more of an ability to run a load.

#### BobK

Jan 5, 2010
7,682
A signal generator chip combined with an audio amp (one that can go to 80KHz) would probably be the simplest way to get what you want.

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