Linearizing and control circuit for air flow rate meter

Details Linearizing and control circuit for air flow rate meter Linearizing and control circuit for air flow rate meter

1981-09-08

1984-03-20

Myracle, Jerry W.

Measuring and testing

Simulating operating condition

Marine

73204, G01M 1500

Patent

active

044373392

ABSTRACT:
An electrically controlled fuel metering system having an air flow rate meter device in the air intake tube and a subsequent linearizing circuit layout is proposed. The linearizing circuit layout functions in accordance with the point-slope method and is embodied as a voltage-to-current converter. A first exemplary embodiment of the linearizing circuit layout has transistors coupled with one another respectively at the base and collector sides, the emitters of which are connected with different potentials and are triggered on the base side. In a second exemplary embodiment, individual transistors or transistors which are combined into groups receive their trigger signal via separate amplifiers, while the collectors in turn are carried to a common output point and the emitters likewise have different signal levels. Because of its relatively simple design, the proposed embodiments are particularly well suited to the purposes of integration.

REFERENCES:
patent: 4070908 (1978-01-01), Newell
patent: 4276773 (1981-07-01), Kawai et al.

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