Other Parts Discussed in Thread: UCC23513
Hi
We're using LM317A as the voltage regulation device in the motor driver application. (A noisy environment, there are so much electromagnetic Interference)
The LM317A is placed after the flyback transformer output to supply power to the upper arm of IGBT gate driver. (we use ucc23513, 50A IGBT)
The picture as follows shows the LM317A circuit:
There are two ALCAP in the input(220uF) and output(100uF) of LM317A.
We wonder to know is it necessary to place a "uF" level capacitor in parallel to the feedback resistor(C150, R163) like datasheet? (TI suggest 10uF, we put 2.2uF here),
and Is it enough to reject the voltage ripple in this motor driver application?
Thanks.