???????? (Single-phase Bridge Rectifier Circuit)

1
????????(Single-phase Bridge Rectifier Circuit)

• ???

2
?????????????
u2????????
????????
3
?????????????
u2????????
T
T
RL
RL
u1
u0
????????
4
?????????????????????
A
D4
u2gt0 ?
u2lt0 ?
RL
D1
u2
uo
D1,D3?? D2,D4?? ???? A ? D1? RL?D3?B
D2,D4?? D1,D3?? ???? B ? D2? RL?D4?A
D3
D2
B
??????????!
5
????

• ?????
• ????(direct current voltage)
• ????(direct current)

6
????

• ????????
• ????(average current)
• ??????(reverse peak voltage)

7
????

• ??????,??????Uo60V,????Io4A????????????,????
  ??????U2,?????????
• ??? Uo0.9U2
• ? U2Uo/0.960/0.966.7(V)

8
????

• ? ???????????
• ?????????????
• ????????2CZ12A(3A/100V)??????

9
? ?

• ?????????????????
• ??????????

10
?????

• 1.??????????????????????
• 2.????????????????? ???,???????????
• 3.?????????????,??????

11
????????

• Uo????????,????????,????????