When compared to linear voltage regulators the switching voltage regulators are power . case of linear voltage regulators the between the input and output voltage wasted and for switching regulators no such wastage and that’s why the switching regulators have power ranging up to . In words, the switching regulator operates by taking bits of energy from the input voltage and then transferring it to the output with of a solid state switch and circuitry. Since the switching is either open or closed at any moment, no energy is wasted across it. The circuit controls the duty cycle of the solid state switch in determines rate at energy is transferred to the output.
The electronic circuit given here is of and low switching regulator using the IC LM317 deliver up to 3A of current. The input voltage of this circuit is between to 35V DC output voltage adjusted between .8 to 32V DC. The output voltage adjusted by using the POT R4.
Notes.
- Assemble the circuit on a good quality PCB.
- C4 and C3 must be a solid tantalum capacitor.
- Transistor T1 and IC1 require heat sinks.
- L1 can be a 600uH inductor.
