Programmable controller having a system for reducing energy cons

Details Programmable controller having a system for reducing energy cons Programmable controller having a system for reducing energy cons

1998-09-29

1999-11-16

Nguyen, Matthew

Electric power conversion systems

Current conversion

Including d.c.-a.c.-d.c. converter

363131, H02M 3335, H02M 7537

Patent

active

059868961

ABSTRACT:
A programmable controller reduces the power used by the relays. The controller design permits energization of relay coils without subsequent maintenance of the relatively high voltage required for energization. The design permits the voltage across the relay to be lowered to an activated relay coil maintenance level with a design that minimizes the space required for the relay circuitry.

REFERENCES:
patent: 3590334 (1971-06-01), Baker
patent: 4360740 (1982-11-01), Conard
patent: 4755132 (1988-07-01), Geary
patent: 4833565 (1989-05-01), Bauer et al.
patent: 4959746 (1990-09-01), Hongel
patent: 5255152 (1993-10-01), Estes, III et al.

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