ENGINE IGNITION SHUTDOWN MODULE

摘要

An engine ignition shutdown module includes a voltage regulator circuit connected to a key switch, and a pair of isolated MOSFET driver circuits connected to the voltage regulator circuit. Each MOSFET driver circuit charges a capacitor while the key switch is in a run position and the interlock switches are closed, and each capacitor discharges through a resistor for a time delay period once the key switch is moved from the run position to an off position or at least one of the interlock switches are opened. A pair of high voltage output MOSFET transistors are switched on while the capacitors discharge and provide an output to a magneto ignition for the time delay period.

主权项

1. An engine ignition shutdown module comprising:
a MOSFET driver circuit charging a capacitor while a power input signal is provided to the engine ignition shutdown module through a key switch in a run position and at least one interlock switch that is closed; the capacitor discharging through a resistor connected to a MOSFET transistor that is turned on after the power signal is removed and the MOSFET driver circuit discontinues charging the capacitor; the MOSFET transistor connected to an engine magneto to provide ignition while the capacitor discharges.