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Half-Bridge 0-30V, 0-20A Feedback loop problem
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paladyn:
5
paladyn:
6
xavier60:
The 100Hz ripple is normal because there is no feedback loop to correct it.
 The main thing is that the PWM timing is stable with no jitter or missing pulses.
All appears fine to me and proves there is nothing odd affecting the drive.
I have no experience with a direct current control loop.
For a 40A battery charger project, I used fast pulse by pulse limiting and a slow loop that decreased the reference voltage to the voltage error amp.
paladyn:
Have you met with a situation where pin 5 (CT) is connected to pin 1 (INV AMP) through a resistor?
Maybe you know why it's used?

xavier60:

--- Quote from: paladyn on July 26, 2019, 08:47:43 am ---Have you met with a situation where pin 5 (CT) is connected to pin 1 (INV AMP) through a resistor?
Maybe you know why it's used?

--- End quote ---
No, do you have an example? I guess that it could improve noise immunity.
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