三相全控桥整流电路带电阻性负载,电路电流连续与断续的临界点为()
A.α=30°
B.α=60°
C.α=45°
D.α=90°
正确答案:α=60°
B.α=60°
C.α=45°
D.α=90°
正确答案:α=60°