Regulated Power Supplies » Exercise - 131. Two similar 15 V zeners are connected in series. What is the regulated output voltage ? (a) 15 V (b) 7.5 V (c) 30 V (d) 45 V
Regulated Power Supplies » Exercise - 129. If a power supply has no-load and full-load voltages of 30 V and 25 V respectively, then percentage voltage regulation is ............ (a) 10 % (b) 20 % (c) 15 % (d) none of the above
Regulated Power Supplies » Exercise - 13. In an unregulated power supply, if input a.c. voltage increases, the output voltage .......... (a) increases (b) decreases (c) remains the same (d) none of the above
5555555555113. The specification sheet for the 7812 fixed positive voltage regulator shows that the output voltage could be as low as ________ or as high as ________. (a) 11.5 V, 12.5 V (b) 11.2 V, 12.2 V (c) 11 V, 13 V (d) 8 V, 15 V