Multipurpose, internally configurable integrated circuit for dri

Details Multipurpose, internally configurable integrated circuit for dri Multipurpose, internally configurable integrated circuit for dri

1989-11-14

1990-11-20

Ro, Bentsu

Electricity: motive power systems

Motor-reversing

Armature or primary circuit control

318599, 307592, H03K 1756

Patent

active

049721305

ABSTRACT:
A multipurpose integrated circuit for driving in a switching mode an externally connected load or loads permits implementation of any appropriate supply scheme of the external load or loads through six output terminals thereof and is therefore useful in a large number of applications. The integrated circuit uses six integrated power switching devices provided with respective recirculation diodes and a single externally connected sensing resistor for generating, by means of a customary PWM control loop, a control signal by which means of a logic circuit configurable by progrmaming permits the generation of driving signals as a function of the control signal for all six integrated power switches in accordance with a configuration of the driving signals which conforms with the particular scheme of connection of the load or loads selected among the different bridge type and unipolar-motor type schemes which may be selected by programming. A multiplexer is used for selecting among bridge type driving signals and unipolar-motor type driving modes and a ROM provided with two input registers for selecting the specific driving scheme and for regulation, respectively.

REFERENCES:
patent: 4523134 (1985-06-01), Kinoshita et al.
patent: 4544869 (1985-10-01), Pittaway
patent: 4599545 (1986-07-01), Moriki et al.
patent: 4605863 (1986-08-01), Toudo et al.
patent: 4616305 (1986-10-01), Damiano et al.
patent: 4686438 (1987-08-01), Ohe et al.
patent: 4800324 (1989-01-01), Kuttner
patent: 4831285 (1989-05-01), Gaiser

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