12 Volt Regulated Power Supply Circuit Diagram. Pcb layout for lm317 power supply. But it still has the same characteristics as a fixed regulated power supply.
It is a better way if be a high power out of 5a to 30a according to the size of the transmitter. Usb 5v to 1 5v 3v dc adapter. The output from an ordinary power supply is fed to the voltage regulating device that provides the final output.
It is a 3 terminal ve voltage regulator ic.
Usb 5v to 1 5v 3v dc adapter. The 7812 regulator is used to maintain output at 12 volts and three tip 2599 transistors are used to boost current. It has short circuit protection thermal overload protection. Here is a high current 13 8v power supply circuit.
