Control circuit for controlling output pulse width using negativ

Internal-combustion engines – High tension ignition system – Having dwell control

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123644, 307267, F02P 304

Patent

active

045521182

ABSTRACT:
A pulse width control circuit for controlling a pulse width of the output signal using a negative feedback signal, which includes a circuit for detecting the pulse width of the output signal. This detector circuit generates a detection output when the pulse width of the output signal is shorter than a predetermined width. There is also provided a circuit operating in response to the detection output, which circuit acts on the control circuit to forcibly vary the feedback signal, resulting in that the pulse width of the output signal is broadened.

REFERENCES:
patent: 4043302 (1977-08-01), Sessions
patent: 4153032 (1979-05-01), Chateau
patent: 4174696 (1979-11-01), Jundt et al.
patent: 4248195 (1981-02-01), Gorille
patent: 4298941 (1981-11-01), Furuhashi

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