Circuit for preventing corrosion of contact

Details Circuit for preventing corrosion of contact Circuit for preventing corrosion of contact

2005-03-01

2009-06-23

Paladini, Albert W (Department: 2836)

Electrical transmission or interconnection systems

Switching systems

With operation facilitating feature

C324S421000, C324S700000

Reexamination Certificate

active

07550878

ABSTRACT:
A circuit for preventing corrosion of a contact, includes an input terminal, a signal line, a switch, an impedance element, and a comparator. The input terminal is to be connected to the contact, which is outside the circuit. The signal line is connected to the input terminal. The switch is connected to the signal line. The impedance element is connected to the signal line in parallel to the switch. An impedance of the switching section is smaller than that of the impedance element. The comparator compares a potential of the signal line with a predetermined potential. The switch is turned on based on a comparison result output from the comparator.

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