Cathodic protection controller

Details Cathodic protection controller Cathodic protection controller

1982-12-23

1985-07-09

Pellinen, A. D.

Electrical transmission or interconnection systems

Anti-electrolysis

204196, 204147, H01B 728

Patent

active

045284601

ABSTRACT:
A control system (17) for cathodically protecting an outboard drive unit (11) from corrosion includes an anode (12) and a reference electrode (13) mounted on the drive unit (11). Current supplied to the anode is controlled by a transistor (20), which in turn is controlled by an amplifier (25). The amplifier is biased to maintain a relatively constant potential on the drive unit (11) when operated in either fresh or salt water.

REFERENCES:
patent: 4160171 (1979-07-01), Merrick
patent: 4322633 (1982-03-01), Staerzl

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