Methode Electronics, Inc.
Two-Wire Circuit Function By Supply Modulation

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Abstract:

An active three-wire fluid level sensor employed in an application designed for a two-wire switch is disclosed. A fluid level sensor assembly includes a fluid level sensor including first, second, and third wires. The third wire carries an output signal configured to fluctuate between a low output signal level and a high output signal level. The fluid level sensor assembly also includes a supply modulation driver electrically connected to the third wire. The fluid level sensor, via the first, second, and third wires, is configured to serve as an input to a two-wire input electronic control unit (ECU). A method of operating a two-wire circuit function by supply modulation is also disclosed.

Status:
Application
Type:

Utility

Filling date:

17 Apr 2019

Issue date:

24 Oct 2019