CA3228 Ver la hoja de datos (PDF) - Harris Semiconductor

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Fabricante

CA3228

Speed Control System with Memory

Harris Semiconductor 

Specifications CA3228

Electrical Specifications TA = +25oC, VCC = 8.20V, Unless Otherwise Specified (Refer to Figures 2 and 3) (Continued)

PARAMETERS

SYMBOLS TEST PIN TEST CONDITIONS

MIN

MAX

UNITS

Memory Set Error

Deadband Range (VAC and VENT Outputs

Off)

V6 - V10

VDB

6, 10

21, 22

Sweep Pin 19,

Voltage at 1V/sec

-77

67

mV

0.96

1.43

V

Control Amplifier Gain

D/A Voltage Range

ACNTL

VM

16, 19

6

ACNTL = V19/V16

Set Mode

74

-

Ratio

6

7.50

V

Functional Block Diagram

VCC 3

VCC

1 GROUND 24

DRIVER COMMAND 3

COMMAND DELAY 4

OSCILLATOR 5

BRAKE INPUT 12

SPEED 8

SENSOR INPUT

F/V OUT 9

F/V FILTER 10

VS 11

V MEMORY 6

CURRENT 7

SENSE

RESUME

COMMAND

DECODER

AND

DELAY

ACCEL

COAST

ON

OFF TOGL

I2 L

CONTROL

LOGIC

GATE

VENT

VAC

23

OUTPUT

GATE

21

VENT

CONTROL

22

VACUUM

CONTROL

OSC.

BRAKE

SENSOR

OVER SPEED

DETECTOR

F/V

CONVERTER

VS MINIMUM

SPEED

SENSOR

RESUME

DETECTOR

REDUNDANT

BRAKE

19

CONTROL AMP.

OUTPUT

+

20 CONTROL AMP. (+)

CONTROL AMP.

_

18 CONTROL AMP. (-)

ERROR AMP.

16 V ERROR

0.45V

“E”

14

ACCEL.

RATE AMP

ACCELERATE

RESISTOR

VS

VM

CURRENT

SENSE

ANALOG TO

DIGITAL TO

VM

ANALOG

CONVERTER

“B” MODE

“C”

SW

“D”

“A”

ALIGN

15 ACCELERATE

CAPACITOR

17 ALIGN

10-33

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