# US 4,467,254 A · Motor translator

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- Number: US 4,467,254 A
- Document ID: US4467254A
- Status: Granted
- Kind: A
- Application number: 06/191,135
- Filed: 1980-09-26
- Granted: 1984-08-21
- Earliest claimed: 1980-09-26
- Inventors: Ernest Zucco, Jr.
- Web page: https://patentgrep.com/patent/US4467254A

## CPC

- G05B 19/40: Open loop systems, e.g. using stepping motor
- G05B 2219/33204: Optocoupler, galvanic separation, isolation
- G05B 2219/42182: Memory is Rom for servo control
- G05B: CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS (systems for controlling or regulating non-electric variables G05D; systems for regulating electric or magnetic variables G05F; control devices or systems insofar as characterised by mechanical features only G05G)

## Abstract

A motor translator with an up/down counter which inputs a preprogrammed read-only memory for selectively driving a multiple phase stepping motor. The read-only memory stores data at preselected locations and generates drive signals in a sequence which corresponds to the coil switching sequence of the stepping motor. The drive signals generated by the read-only memory in response to direction signals received from the up/down counter are applied to the motor for selective energization thereof.

## Claims

### Claim 1

In combination with a multiple coil motor, a device for controlling the motor, said device comprising:
(a) means for generating command signals;
(b) input means for receiving said command signals,
(c) an up/down binary coded decimal counter connected to said input means for receiving said command signals and generating direction signals; and
(d) a read-only memory connected to said counter for receiving said direction signals and for generating drive signals for controlling the motor, said read-only memory storing data representing a coil switching sequence of the motor.