In Reply to: RE: I have been using the LM317 on low power amps posted by DAK on January 23, 2016 at 10:39:35:
If you are interested, I have been using a cathode CCS on my PPP KT120 amps that supplies ~3oomA@-70V (needs a large heat sink) that is based on a Fairchild KA431 (low tempco variant of the TL431) and a power N chn MOSFET. Variation in current between dead cold and hot is +/- 0.25mA. So far has proved itself reliable with no oscillation.
"It is better to remain silent and thought a fool, then speak and remove all doubt." A. Lincoln
This post is made possible by the generous support of people like you and our sponsors:
Follow Ups
- RE: I have been using the LM317 on low power amps - JKT 01/23/1612:07:12 01/23/16 (2)
- RE: I have been using the LM317 on low power amps - DAK 18:17:11 01/23/16 (0)
- RE: I am very interested - DAK 14:22:46 01/23/16 (0)