9 光耦使用技巧 6页

( ) 1a

1

1b 1c

1

2 T1 T2 2 A1 A2 2 T1 T2 K1(I1)=K2(I1) G=Uo/U1=I3R3/I2R2=(R3/R2)[K1(I1)/K2(I1)]=R3/R2 T1 T2

2

VFC( ) 3 ( )

3 VFC

TIL300 6N135/6N136

2

6N135/6N136 6N137/6N138

Cbe Cce 4 RL

4

2 T1 T2 5 “1” T1 T2 “0” T1 T2

5 2

6 10

6

3

ms 10us

7 CRT ( 8) T1 4N30 ULN2800 500mA 50V

7

8

TLP541G 4N39 9 10 R1 R2

9

10

MOC3010 11 T1 T2

11

12

12 -

4

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