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Old 21st February 2013, 11:01 PM   #11
Ceglar is offline Ceglar  Australia
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Quote:
Originally Posted by DF96 View Post
Curiously, a follower is an exception to this: followers can oscillate at VHF/UHF frequencies if they see a small capacitive load. A big, or lossy, capacitive load such as an electrolytic is usually OK.
Would you consider 47uF/6.3V BG NX Hi-Q to be big and/or lossy enough?
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Old 22nd February 2013, 01:08 AM   #12
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That doesn't look like a shunt reg to me. The CCS just supplies the voltage reference.
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Old 22nd February 2013, 10:27 AM   #13
DF96 is offline DF96  England
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Most electrolytics will be big enough and lossy enough. Low ESR ones perhaps not.
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Old 23rd February 2013, 04:45 AM   #14
Ceglar is offline Ceglar  Australia
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Originally Posted by DF96 View Post
Most electrolytics will be big enough and lossy enough. Low ESR ones perhaps not.
Thanks DF, have to wait and see I guess. Appreciated the help by the way, thanks a lot for that.

Regards,
Shane
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Old 23rd February 2013, 04:48 AM   #15
Ceglar is offline Ceglar  Australia
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Originally Posted by Robert F View Post
That doesn't look like a shunt reg to me. The CCS just supplies the voltage reference.
What sort of regulator would you suggest that it is?

Shane
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Old 25th February 2013, 03:02 AM   #16
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Originally Posted by Ceglar View Post
What sort of regulator would you suggest that it is?

Shane
It's a series reg.
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Old 25th February 2013, 03:16 AM   #17
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Originally Posted by Robert F View Post
It's a series reg.
Sorry that was accurate but not very helpful. In a shunt regulator the regulating device is in parallel with the load. The regulator you show the pass transistor is in series with the load, it is just drawn in a strange way.
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