Power Supply Regulators Unit 3 – Series Voltage Regulator
Exercise 1 – Series Regulator Operation
EXERCISE OBJECTIVE
When you have completed this exercise, you will be able to describe series voltage regulator
operation. You will verify your results with a multimeter.
EXERCISE DISCUSSION
- Circuit output or load voltage is determined by VCR1 and VBE.
- Required transistor base current is typically less than the load current because of transistor
gain. - Zener diode current is selected to bias the zener beyond its knee (zener voltage breakdown
region). - Calculations of circuit component power dissipation utilize standard power formulas.