- #1
boss987
- 3
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Low Cost "Harmonics Generator"
Hi,
Thanks in advance. I noticed how good is this forum so I decided to share my thoughts with you about the following. If possible, I need some ideas from you guys to build a low cost circuit to generate only 2nd an 3rd harmonics for a 120v 60hz sinewave input voltage...Now, I know that it could be easily done with a PC software and a DAC card...but, I have a limited budget. Below is a description of what I'm looking for:
1- two outputs:
a- First o/p is the 2nd harmonic of the original sinewave (ie. 33% amplitude of the input waveform and 120hz)
b- Second o/p is thethird harmonic of the same original sinewave
2- Taking those 2 o/p's and either add them to the original input waveform or subtract them from it.
The reason for my little project is to simulate a real life issue with power lines harmonics...and then feed the distorted signal to a relay to see how the relay would behave
Thanks a lot guys...please let me know if anything is ambigious
Hi,
Thanks in advance. I noticed how good is this forum so I decided to share my thoughts with you about the following. If possible, I need some ideas from you guys to build a low cost circuit to generate only 2nd an 3rd harmonics for a 120v 60hz sinewave input voltage...Now, I know that it could be easily done with a PC software and a DAC card...but, I have a limited budget. Below is a description of what I'm looking for:
1- two outputs:
a- First o/p is the 2nd harmonic of the original sinewave (ie. 33% amplitude of the input waveform and 120hz)
b- Second o/p is thethird harmonic of the same original sinewave
2- Taking those 2 o/p's and either add them to the original input waveform or subtract them from it.
The reason for my little project is to simulate a real life issue with power lines harmonics...and then feed the distorted signal to a relay to see how the relay would behave
Thanks a lot guys...please let me know if anything is ambigious
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