Explanation: 3 diodes, each conduct for 120 degree at a time. 7. In a three-phase half wave diode rectifier, if Vmp is the maximum phase voltage, then the output voltage on a R load varies from
A. 0 to Vmp
B. 0.5 Vmp to Vmp
C. Vmp to 3Vmp
D. –Vmp to Vmp
Answer:A
Explanation: 3 diodes, each conduct for 120 degree at a time. 7. In a three-phase half wave diode rectifier, if Vmp is the maximum phase voltage, then the output voltage on a R load varies from
A. 0 to Vmp B. 0.5 Vmp to Vmp C. Vmp to 3Vmp D. –Vmp to Vmp
Explanation: The voltage value is positive and varies from (1/2)Vmp to Vmp. 8. The average value of the output voltage, in a 3-phase half wave diode rectifier with Vml as the maximum line voltage value, is given by the expression