Frequency to voltage converter

[siddarth.ghaste]

Hi all,
Please anybody tell me the concept of frequency to voltage converter.If possible with circuit diagram.I want to measure frequency of main signal of 50Hz....

 

[Jestin_cubetech]

LM2907/LM2917 Frequency to Voltage Converter
https://www.ti.com/lit/ds/symlink/lm2907-n.pdf

 

[ArNvC]

You can also have a look at here:
https://www.ti.com/lit/ds/symlink/vfc32.pdf

LM2907/LM2917 is also a good option.

 

[siddarth.ghaste]

these are costly IC's, is there any low cost solution

 

[ArNvC]

Have a look here https://www.analog.com/static/imported-files/data_sheets/AD654.pdf

 

[siddarth.ghaste]

Have a look here https://www.analog.com/static/imported-files/data_sheets/AD654.pdf

This one is voltage frequency converter.I need F to V converter.

- - - Updated - - -

This one is voltage frequency converter.I need F to V converter.

Do you have any other idea about frequency measurement of mains power supply?

 

[Jestin_cubetech]

**broken link removed**
**broken link removed**
https://www.circuitstoday.com/f-to-v-converter

 

[ArNvC]

This circuit looks good as given by Jestin...

 

[siddarth.ghaste]

**broken link removed**
**broken link removed**
https://www.circuitstoday.com/f-to-v-converter

This one gives current.there will be need of I to V converter

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This one gives current.there will be need of I to V converter

I tried second link(https://www.circuitstoday.com/f-to-v-converter)
for 10Hz change in frequency i am getting 0.01V change in output.This will be difficult to read in ADC.Can you please help me to make this for 0.1V change for 0.1Hz