Electronic connection device with reverse polarity protection

Details Electronic connection device with reverse polarity protection Electronic connection device with reverse polarity protection

1995-07-06

1996-05-21

DeBoer, Todd

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific quantity comparison means

361187, 307127, H02H 318

Patent

active

055195598

ABSTRACT:
An electronic device offering protection against connection of a direct current power supply unit with reverse polarity includes a branch disposed between two potential lines and including a reverse biased diode and a first component sensitive to a flow of current. A first switch is disposed on the downstream side of this branch, on one of the potential lines. A control circuit has two terminals receiving a control signal and, connected in series between those terminals, a second switch and a second component sensitive to a flow of current. The first switch, normally open, is closed by the second sensitive element if the latter detects a flow of current. The second switch, normally closed, is opened by the first sensitive component if the latter detects a flow of current.

REFERENCES:
patent: 3365617 (1968-07-01), Flanagan

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