Q. Show Typical performance parameters for voltage regulators ?

Typical performance parameters for voltage regulators are

· Line regualtion

· Load regulation

· Temparature stability

· Ripple rejection

Line or input regulation is defined as the change in output voltage for a change in the input voltage and is usually expressed in milli volts or as a percentage of output voltage. Load regulation is the change in output voltage for a change in load current and is also expressed in milli volts or as a percentage of output voltage. Temperature stability or average temperature coeffiecient of output voltage is the change in output voltage per unit change in temperature and is expressed in milli volts/ ^oC.

Ripple rejection is the measure of regulators ability to reject ripple voltages. It is usually expressed in decibels. The smaller the values of line regualtion, load regulation, and temperature stability, the better the regulator.