Automatic impedance--changing circuit

Details Automatic impedance--changing circuit Automatic impedance--changing circuit

H - Electricity

02

J

323/33

H02J 4/00 (2006.01)

Patent

CA 1103309

ABSTRACT OF THE DISCLOSURE An engine control wherein a shaft driven by the engine causes first and second signals to be generated, the relationship between said signals being sufficient to cause a control function to be exercised upon the engine reaching a critical speed or upon reverse shaft rotation. An automatic impedance-changing circuit is provided for connecting said engine control to a direct current voltage source, said circuit being connected in a manner sufficient to control current flow from said voltage source through said engine control as a function of the voltage available from said voltage source. The engine control will thus be capable of operating with a range of D.C. voltage sources, each of which may exhibit different available voltages.

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