DC Power Supply Schematic
Adjustable DC Power Supply Schematic
Power supply is one tool that should be available whenever needed to operate a DC application. You are just starting to wreak hobby power supply, may be trying to build one from a DC power supply schematic.
The availability of a variable or adjustable DC power supply schematic meant to be built for a power supply which can freely choose the required voltage configuration. As it was owned by a laboratory power supply with the voltage features that can be changed and has a current-limiting.
Full features of a power supply are also added to the monitor panel for voltage and current protection circuit coupled to prevent damage in case of overvoltage and / or short-circuit. However, in the following DC power supply schematic is a simple power supply output voltage is built with features that can be adapted according to your needs.
DC Power Supply Schematic
Adjustable DC Power Supply Schematic
DC power supply schematic is divided into two parts, namely unregulated power supply and regulated power supply, which is contained in the printed circuit board (PCB). Unregulated power supply is a DC power supply is used as a source for the voltage regulation on the regulated power supply. So the DC power supply schematic is a basic diagram of the step-down DC to DC Converter.
Adjustable DC Power Supply-Component Layout
The output voltage of the adjustable DC power supply is variable with voltage range from 1.3V to 22V with maximum current 1A. 2K potentiometer P1 is used to set the desired output voltage. While R2 is marked by the dashed line, can be enabled with disabled P1, with the aim of the homework for you to know more about how to use a voltage divider to determine the output voltage at a variable power supply. So this power supply can be modified into a power supply with fixed voltage at the output.
Adjustable DC Power Supply-PCB
You can understand about the voltage divider formula in the previous article power supply and see DC power power schematic that uses a LM317 IC (T) as a voltage regulator IC. The use of a diode D1 as a reverse polarity protection while P1 sets the output voltage of the DC power supply schematic.
Read more : DC to DC Converter Circuit – USB Powered FM Transmitter.
