Grounding arrangement useful in a display apparatus

Details Grounding arrangement useful in a display apparatus Grounding arrangement useful in a display apparatus

1985-10-30

1987-01-13

Britton, Howard W.

Facsimile and static presentation processing

Facsimile

Recording apparatus

307549, 361 56, 361 91, H04N 544

Patent

active

046368671

ABSTRACT:
The control unit for a display system is partitioned into first and second interconnected control units so as to permit respective separate ground terminals to be utilized. The separate ground terminals allow stable grounding for sensitive circuits in each of the control units without the formation of a continuous, closed ground loop which would be susceptible to disturbances due to ground currents induced from the magnetic field of the deflection unit of the display system. A theshold responsive gate is coupled between the separate ground terminals to inhibit excessively large and potentially damaging voltages due to picture tube discharges from being developed between the ground terminals.

REFERENCES:
patent: 4340922 (1982-07-01), Delaporte
patent: 4375661 (1983-03-01), Savic
patent: 4398106 (1983-08-01), Davidson
Electrical Schematic Ignition Interrupt Driver-Drawing No. 12258888.
The document entitled, "Plessy Semiconductors Preliminary Information-XP500 Single Chip Frequency Synthesizer", dated Aug. 82, by Plessy Semiconductors Limited, Wiltshire, United Kingdom.

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