Explanation: The load current may vary from 0 to rated maximum output current. To maintain this condition, the IC regulator is usually provided with a heat sink; otherwise it may not provide the rated maximum output current. 4. For the given circuit, let VEB(ON)=1v, ß= 15 and IO=2mA. Calculate the load current
A. IL = 23.45A
B. IL = 46.32A
C. IL = 56.87A
D. IL = 30.75A
Answer:A
Explanation: The load current may vary from 0 to rated maximum output current. To maintain this condition, the IC regulator is usually provided with a heat sink; otherwise it may not provide the rated maximum output current. 4. For the given circuit, let VEB(ON)=1v, ß= 15 and IO=2mA. Calculate the load current
A. IL = 23.45A B. IL = 46.32A C. IL = 56.87A D. IL = 30.75A
Explanation: The equation for load current, IL = [(ß+1)IO]-[ß×(VEB(ON)/R1)]=[(15+1)×2]–[15×(1v/12 Ω)] =32-1.25 =30.75A. 5. Which type of regulator is considered more efficient?