ruffrecords
Well-known member
There have been many threads on voltage regulators and ripple reduction methods. The most common ripple reduction method is the misnamed capacitance multiplier that is really a LPF feeding an emitter follower. I recently came across a different approach which ac couples the input ripple to a shunt transistor in order to create a near equal and opposite ripple current that cancels the input ripple at the output. Here is a video about the technique:
The interesting bit starts around 5:49 which is the end of the emitter follower technique discussion closely followed by the shunt technique.
Cheers
Ian
The interesting bit starts around 5:49 which is the end of the emitter follower technique discussion closely followed by the shunt technique.
Cheers
Ian