R2 and R3 determine the output voltage. In addition, the values of R2 and R3 are chosen to provide a small amount of standing current in Q1, which gives additional stability margin to the circuit. Where accurate setting of the output voltage is required, either R2 or R3 can be made adjustable.
Description for R2 and R3
|1||Title:||R2 and R3|
|3||Upload date:||November 14, 2011|