[volt-nuts] PWM voltage divider
randallgrayevans at yahoo.com
Thu Jan 9 18:13:38 EST 2014
Considerations when using PWM circuits include Ron and Roff resistances, rise and fall times of switches (differing times cause a bias offset) and charge injection effects (add offset), among others. I am looking for circuit information for PWM dividers myself. Does anyone have sources for the Fluke 5440 manual and the Datron 4910 manuals with schematics. I looked on K04BB's site and Fluke's site but all I could find were user manuals with no schematics.
On Wednesday, January 8, 2014 10:17 PM, Andreas Jahn <Andreas_-_Jahn at t-online.de> wrote:
Another cirquit that was not mentioned up to now is the EDN Cirquit
The advantage is relative low effort and fast settling time. (for a PWM
Although you have to tweak the
cirquit to get a fair linearity of around
(The values in the article seem to be very optimistic to me).
Also the noise behaviour of my setup is not as good as would be a dual
With best regards
Am 08.01.2014 09:25, schrieb Jan Fredriksson:
> I'm thinking of using a PWM divider for voltage generation of adjustable DC
> voltages from a voltage reference.
> Does anyone have any pointers to circuits, solutions, topologies, error
> analysis etc. for such solutions?
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