OM9371 데이터 시트보기 (PDF) - Omnirel Corp => IRF

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OM9371

FULL-FEATURED POWER MODULE FOR DIRECT DRIVE OF 3-PHASE BRUSHLESS DC MOTORS

Omnirel Corp => IRF 

OM9371

Fig 3: Optional Start-Up Circuit

+15V

3.24k

COMMAND

1k

1.50k

FROM MOTOR HALL SENSORS

H3

H2

H1

10uF

+

.1uF

.1uF

10k

.1uF

4700pF

232

232

1

2

Vcc

EA1-

3

EA2+

4

5

EA1+

VREF

6

EA2-

7

8

EA2_OUT

EA1_OUT

9

PWM_IN

10

11

OSCILLATOR

I_SENSE

12

ISH

13

14

ISL

QUAD_SEL

15

TACH_OUT

16

17

BRAKE

18

OV_COAST

SOFT_START

19

20

GROUND

21

H3_HALL_INPUT

H2_HALL_INPUT

22

H1_HALL_INPUT

23

24

SPEED_IN

DIRECTION

25

CSH

26

CSL

43

V_MOTOR

42

PHASE_A_OUT

41

PHASE_A_OUT

40

SOURCE_A

39

SOURCE_A

38

V_MOTOR

37

PHASE_B_OUT

36

PHASE_B_OUT

35

SOURCE_B

34

SOURCE_B

33

V_MOTOR

32

PHASE_C_OUT 31

PHASE_C_OUT

30

N/C

29

SOURCE_C

28

MOTOR_RETURN

27

MOTOR_RETURN

V_MOTOR

C_BUS

+

C_FILT

MOTOR

H1

H2

H3

HALL SENSORS

Fig 4: Implementation of a Voltage-Mode Controller

2.1 - 11

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