Presence and direction of line current flow detector

Details Presence and direction of line current flow detector Presence and direction of line current flow detector

1976-03-25

1977-04-26

Olms, Douglas W.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Frequency of cyclic current or voltage

1791753R, 324117H, H04B 346, H04M 322

Patent

active

040202941

ABSTRACT:
A Hall effect device is employed to monitor the presence and direction of line current flow. The output of the Hall effect device is fed to an amplifier having a known output level for a zero input. The output of the amplifier will increase or decrease dependent on the direction of the current flow. The output of the amplifier is monitored for change and direction of change of current flow.

REFERENCES:
patent: 2550492 (1951-04-01), Millar
patent: 3226640 (1965-12-01), Kuhrt et al.
patent: 3885212 (1975-05-01), Herbert

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