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Cancellator: a magic active CM noise canceller to upgrade any brick or module SMPS
Cancellator: a magic active CM noise canceller to upgrade any brick or module SMPS
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Old Yesterday, 05:52 PM   #11
russc is offline russc  England
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If creating a symmetrical supply ie +ve / 0 / -ve from 2 power bricks, the +ve from one supply would connect to the -ve of the second supply.
The circuit works just the same if the ground is taken to the centre 0 volt point?
It does not matter if the ground is to the + or the - of V2?
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Old Yesterday, 07:09 PM   #12
Elvee is online now Elvee  Belgium
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Quote:
Originally Posted by russc View Post
It does not matter if the ground is to the + or the - of V2?
No, not really: all these supplies have a largish E-cap directly connected across the OP terminals, meaning that from an AC perspective they are equivalent (except for the differential-mode perturbations, but they are normally in the tens of mV range at most, whereas the CM ones are tens of volts: 60dB difference)
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