18. Temperature stability or average temperature coefficient of output voltage(TCVO): defined as the change inoutput voltage per unit change intemperature and expressed in millivolts per degree celsius.
19. Ripple rejection: is the measure of regulator ‘s ability to reject ripple voltages.it is usually expressed in decibels.
20. Quiescent current Iq : current that flows into the regulator and does not include current drawn by load or internal resistor networks.
58. Case 1: if time period T is constant,V0 is directly proportional to the on time ton , for a given value of Vin. This method of changing the output voltage by varying ton is called pulse width modulation
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62. When the transistor is off(switch is open) , no current flows,therefore no power dissapation.
63. When the transistor is on,(switch is closed), high current flows but Vce becomes low and therefore power dissapation is less.