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Need a suitable Class D amplifer for transformer application

Hi,

Hope this post find you well.

My intention is to make an 3-phase power calibrator !

basic_idea.jpg

Similar to this link, https://us.flukecal.com/products/ele...wer-calibrator

 

My current AMP design might be class AB type.

 

I am not worried to much about PWM generation ruther I am thinking how can I move class AB to Class D amplification.

A lot of the design effort relates to maintaining linearity and avoiding crossover distortion.

2  amplifiers( current, voltage)  output will feed to CT and PT! Lets consider load will be connected in their output!



REQUIRMENTS :

 

1. The amp input  should be  plus and minus 7volt AC, 45-65Hz( 1 Hz has been converted to 1024)

2. Amp operating voltage should be more or less 24v.

3. 2 channel signal (not sure PWM) should be use , one for current, one for voltage.

4.Can run current transformer(input 16.5 V/1.5 A)  and potential Transformer (input15v/2A). PT output may be 15VAC.

5. If possible both voltage and current amplification is required in one IC.

6. Both positive and negative half signal should be amplify

 

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