^๐^.. I Love Electronics ..^๐^
In this mode the 555 is used as a single-shot timer to produce an output of a fixed duration. The time period is set using one capacitor and one resistor. The time period is started by applying a low pulse to the trigger input. The output pin then goes high for the duration of the [...]
With reference to the schematic, lamp, LP2, is a power-on indicator. The other lamp (lower) lights when the unit reaches its preset current limit. R5, C2, and Q10 (TO-3 case) operate as a capacitor multiplier. The 36 volt zener across C2 limits the maximum supply voltage to the op-amps supply pins. D5, C4, C5, R15, [...]
This is an easy to make power supply which has stable, clean and regulator 0-28V 6/8 Amp output voltage. By using two 2N3055 transistors we become more then 2 times the amount of amps then the power supply delivers, making it real though to brake ;). Although you could use this design to deliver 20 [...]
