Electricity: electrical systems and devices – Safety and protection of systems and devices – With specific voltage responsive fault sensor
Patent
1994-02-25
1996-04-30
Young, Brian K.
Electricity: electrical systems and devices
Safety and protection of systems and devices
With specific voltage responsive fault sensor
361 18, 361 92, H02H 324
Patent
active
055130623
ABSTRACT:
A simplified and economical power supply for redundant computer systems of control systems is disclosed. These control systems may include burner control for furnaces. The safety and reliability of the system are increased. The power supply comprises one single common voltage supply in the form of a self-monitoring power pack unit SN having a power pack NT, an undervoltage monitor UW and an overvoltage monitor. The self-monitoring power pack unit communicates with the redundant computer units P1, P2 via a supply line 1e. This single self-monitoring power pack unit is used according to the invention instead of the known fully parallel two-channel operation with two computer units and two power packs with appertaining components and supply lines. The overvoltage monitor UW and the undervoltage monitor UW are preferably checked for operability through the periodic transmission of a test signal.
REFERENCES:
patent: 4638175 (1987-01-01), Bradford
patent: 4772980 (1988-09-01), Curtis
patent: 4951171 (1990-08-01), Tran
Pallek Anton
Paul Jurgen
Jackson S.
Landis & Gyr Business Support AG
Young Brian K.
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