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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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In Reply to: Re: Why use shunt regs when cheap caps do so well? posted by Ed Sommer on April 23, 2001 at 22:15:23:
I am building a +/- 30VDC using 1085/1033 regs and series pass transistors. My plan is to use 200 uF of Black Gate caps (two 100 uF as l-cancelling pairs) on the adjust pin and another 200 uF as the output cap.Your advice about film caps is interesting -- the data sheets suggest 22 uF solid tantalum (we know better than that) or 150uF electrolytic.
I think the big value on the electrolytic is meant to compensate for their notoriously wide variance from spec -- but the film caps I am familiar with (reliable, hovland, etc) max out at about 10 uF.
What caps and/or values of film caps have you used with regulators?
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Follow Ups
- Film caps on adj pin/regulator output? - MR 23:23:42 04/24/01 (2)
- Re: Film caps on adj pin/regulator output? - Ed Sommer 17:40:08 04/25/01 (1)
- Thanks! (nt) - MR 19:30:39 04/25/01 (0)
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