HI there, Bob & Joe.

What Bob drew should work, except that it is missing a resistor in=20
parallel with the capacitor on the base of the transistor.  The base=20
voltage needs to be at least 1 Vbe lower than the lowest point in the=20
ripple on the incoming power supply.

dwayne


At 10:17 AM 3/4/2015, Bob Blick wrote:
>Hi Joe,
>You could use a one transistor pass element to multiply a capacitor. Let
>me see if I can find an example on the web... nope. here's napkin art.
>
>Bob


--=20
Dwayne Reid   <dwayner@planet.eon.net>
Trinity Electronics Systems Ltd    Edmonton, AB, CANADA
(780) 489-3199 voice          (780) 487-6397 fax
www.trinity-electronics.com
Custom Electronics Design and Manufacturing

--=20
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