Patent ID: 8106617
Filing Date: 2012-01-31
Classification: G05B

Abstract:
1. A power management protection circuit for a trolling motor, the circuit comprising: a first operational amplifier receiving a voltage from a power switching device and amplifying the voltage; a voltage divider receiving the amplified voltage from the first operational amplifier and turning off a switch signal output of the voltage divider when the voltage has a high value; an integrator circuit receiving the switch signal and outputting an averaged voltage signal; a comparator receiving the averaged voltage signal and comparing the averaged voltage signal to a variable reference signal; a discharge circuit providing a predetermined time delay when the averaged signal is greater than the variable reference signal, wherein when the time delay ends and the averaged signal remains greater than the variable reference signal for the duration of the time delay, the power switching device is turned off, and further wherein when the averaged signal becomes less than the variable reference during the time delay, the time delay is interrupted, and the power switching device is turned on; and a throttle control, wherein setting the throttle control to an off position resets the turned off power switching device.