Coupling signals via a coupling arrangement

Details Coupling signals via a coupling arrangement Coupling signals via a coupling arrangement

2006-07-04

2006-07-04

Vu, Bao Q. (Department: 2838)

Communications: electrical

Continuously variable indicating

With particular receiver

C340S010340, C307S107000

Reexamination Certificate

active

07071838

ABSTRACT:
A power supply controller has two control units for coupling to primary and secondary sides of controlled power supplies, the units being coupled via a transformer which couples signals between the units, a power supply voltage for the secondary-side unit being derived from signals coupled from the primary-side unit. Initially signals are coupled from the primary unit with an increasing duty cycle to charge a secondary-side power supply capacitor. Subsequently signals are coupled in signal frames in alternating directions between the units, each signal frame from each unit indicating whether or not signal frames are correctly received from the other control unit. The signal frames also provide for downloading information for the control units, and other status signals and commands and acknowledgements.

REFERENCES:
patent: 4188619 (1980-02-01), Perkins
patent: 4254402 (1981-03-01), Perkins
patent: 4481501 (1984-11-01), Perkins
patent: 4758836 (1988-07-01), Scuilli
patent: 5612684 (1997-03-01), Kelly et al.
patent: 5949659 (1999-09-01), Lesche
patent: 6850048 (2005-02-01), Orr et al.
patent: 6911746 (2005-06-01), Orr et al.

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