This circuit is better than the previous one in that the control is isolated by a transformer. The transformer has 110 or 220 V primary and 6.3 to 12 V secondary with 200 to 500 mA current.
This interesting low current circuit uses only one diode to obtain a full wave rectified signal....
The circuit shown is from a 1993 documentation. It uses two FETs in an oscillating configuration that...
This circuit serves to prevent devices powered by 6 V from being left with a power cut. The...