This circuit from an old documentation includes the power supply for the 117 V power grid. It can be adapted to other networks by changing the 10k resistors.
This circuit is recommended by Texas Instruments in the datasheet of the TL317, equivalent to...
The circuit shown in the figure consists of a low voltage dropout (LDO) regulator for 200 mA using...
This circuit of a Popular Electronics is intended to control a wiper. The circuit consists of a...