MC33030P 데이터 시트보기 (PDF) - Motorola => Freescale

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MC33030P

DC Servo Motor Controller/Driver

Motorola => Freescale 

Figure 25. Notch Filter

RR

Vin

2C

R/2

C

C

9

8 20 k

7

20 k

6

+ Error Amp

–

+ fnotch

1

2pRC

For 60 Hz R = 53.6 k, C = 0.05

MC33030

Figure 26. Differential Input Amplifier

9

R1

VA

R2

R3

VB

8 20 k

7

20 k

Error Amp

+

–

ǒ Ǔ ǒ Ǔ R4 6

+ )) VPin 6

VA

R3

R1

R4

R2

R2

R3

–

R4

R3

VB

Figure 27. Temperature Sensing Servo System

VCC

Cabin

Temperature T R1

Sensor

R2 R3 R4

9

8 20 k

7

20 k

6

Error Amp

+

–

VCC

Set

Temperature

ǒǒ ǓǓ + )) VPin6

VCC

R4

R3

1

R1

R2

1

1

In this application the servo motor drives the

heat/air conditioner modulator door in a duct system.

Figure 28. Bridge Amplifier

VRef

R + ∆R

R

R

VB R1

R

R2

9

8 20 k

7

20 k

+ Error Amp

–

VA

R3

R4 6

ǒ Ǔ * + ) VA

VB

VRef

DR

4R 2DR

+ + uu R1 R3, R2 R4, R1

R

+ VPin 6

R4

R3

(VA–VB)

Figure 29. Remote Latched Shutdown

QR

O.C.

QS

7.5 V

16

CDLY

+

15

ROC

4.7 k

+

VCC

17 8

2

3

Vin

4

VRef

LM311

A direction change signal is required at Pins 2 or 3 to

reset the over–current latch.

Figure 30. Power H–Switch Buffer

[ ) RE

VF(D1) VF(D2)–VBE(ON)

IMOTOR–IDRV(max)

VCC

RE

D1 D2

Motor

RE

D1 D2

From Drive

Outputs

A

470

B

This circuit maintains the brake and over–current

features of the MC33030. Set ROC to 15 k for

IDRV(max) ≈ 0.5 A.

MOTOROLA ANALOG IC DEVICE DATA

11

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