Electric controller having output power limiting circuit

Details Electric controller having output power limiting circuit Electric controller having output power limiting circuit

1981-04-20

1983-08-09

Smith, Jerry

Boots, shoes, and leggings

188 3R, 303 20, B60T 1368

Patent

active

043982522

ABSTRACT:
An electronic control for electrically operated brakes utilizing solid state electronic components to control the braking mechanism in a towed vehicle. A transducer develops a control signal corresponding to the braking effort desired, and may be actuated by the hydraulic brake system of the towing vehicle or, alternately, may be actuated from the brake foot pedal itself or from a manual control. Power is applied to the brakes as a pulsating voltage, the pulse width of which is varied in response to the control signal. The pulse width is decreased with increasing currents to limit the power in the circuit when a short occurs in the towed vehicle brake circuit. The electronic control also may be used in other applications.

REFERENCES:
patent: 3503652 (1970-03-01), Vandenbroek
patent: 3909075 (1975-09-01), Pittet, Jr. et al.
patent: 3967863 (1976-07-01), Tomecek et al.
patent: 4084859 (1978-04-01), Bull et al.
patent: 4254998 (1981-03-01), Marshall et al.
patent: 4295687 (1981-10-01), Becker et al.

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