Although the input voltage change between 5V and 13V but the output voltage is steady at 12V
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Build 12V high current power supply, do not need PCB. We use a hammer and nail ! Why?
This is a small motorola radio charger circuit, with automatic mode for the 9 nickel-metal hydride battery holder, if the battery is charged to 11 Volts. [...]
This is DC switching power supply circuit with PCB, adjustable voltage 0-45V at 8A current max. low ripple and noise. full protection as most good supply [...]
There are many ways to build the Dual DC power supply rectifier from a transformer that has one secondary coil.use two bridge diodes and we use capacitance...
This is simple 1.2V AA battery Solar charger circuit. If you want to charge only one 1.5V AA battery and must used at outdoor that don't has home electricity. We…
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[...]