Push button digital regulator for A.C. inverter drives

Details Push button digital regulator for A.C. inverter drives Push button digital regulator for A.C. inverter drives

1986-11-12

1987-11-03

Buczinski, Stephen C.

Glass manufacturing

With signal, indicator, inspection means, register, or recorder

65164, C03B 1700

Patent

active

H00003646

ABSTRACT:
A push button-actuated digital regulator circuit for use with inverter drives for use with inverter drives for A.C. motors of glassware manufacturing apparatus. The digital regulator responds to an operator is pushing UP and DOWN push buttons to increase or decrease the frequency of an oscillator output signal to the inverter. Maximum and minimum frequency limitations are preset at the oscillator and inhibit the operator command signal in the event a commanded increase or decrease would exceed one of the limits. A counter array provides adjustable frequency outputs to the inverter in binary-coded decimal. In a first embodiment, the circuit responds to continuous depression of one of the buttons by adjusting the output frequency at a rate established by an on-board oscillator. Alternatively, adjustment of the output over a plurality of frequency counts may require repeated pressing of the appropriate push button.

REFERENCES:
patent: 4007028 (1977-02-01), Bublitz et al.

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