Explanation: A transistor is connected as power switch and is operated in the saturated mode.Thus, the pulse generator output alternatively turns the switch ON and OFF in switching regulator. 9. What should be the frequency range of pulse generator?
A. 250 kHz
B. 40 kHz
C. 120 kHz
D. 20 kHz
Answer:A
Explanation: A transistor is connected as power switch and is operated in the saturated mode.Thus, the pulse generator output alternatively turns the switch ON and OFF in switching regulator. 9. What should be the frequency range of pulse generator?
A. 250 kHz B. 40 kHz C. 120 kHz D. 20 kHz
Explanation: The most effective frequency range for pulse generator for optimum efficiency and component size is 20kHz. 10. Filter used in switching regulator’s are also as called