AC variable power supply, 0-30V 3A
This is AC variable power supply circuit that apply output of 0-30V at 3A by use electronic components, bridge diode,and more, to control voltage[…]
Variable Supply
It is a power supply circuit that can adjust the output voltage or current. But it still has the same characteristics as a fixed regulated circuit. It will keep a stable voltage when it has any load.
Start with: Simple variable power supply circuit
7805 voltage regulator circuit | Fixed & adjustable output
This is IC 7805 adjustable voltage regulator circuit, can adjust voltage output: 5V up to 30V as need 6V,7.5V,8V,9V,10V and 12V etc at 1A it small and cheap[…]
Variable Switch Mode Power Supply circuit, 0-50V 5A
It is a great idea. but It is suitable for an old hand!
The Variable High Voltage Power Supply 0-300V
it is protected the current over the limit that we define at about 100 mA.
7805 and 7905 Dual adjustable power supply project
The top cheap 7805 Dual Variable Regulator Power Supply. It can adjust the dc voltage with +5V to +25V and -5V to -25V at current 1 amp, using LM7805 and LM7905.