B - Operations – Transporting – 60 – L
Patent
B - Operations, Transporting
60
L
342/34.4
B60L 11/18 (2006.01) F02B 61/04 (2006.01)
Patent
CA 1068385
ABSTRACT OF THE DISCLOSURE An electric trolling motor apparatus includes a solid state motor control housed within the lower propeller unit to establish a constant speed in combination with continuous monitoring to prevent damaging current levels. The forward nose cone of the unit has an inner transverse platform with cast radial ribs and with a shape to receive the slightly smaller mounting frame of a power transistor with a pair of central lateral recesses. A circuit board is formed with a corresponding configured opening. The transistor is bolted to the platform for heat transfer and supports the circuit board. The transistor is connected as a voltage regulator to maintain an essentially constant voltage and resulting speed of the motor. A self-protecting, compensating means positively reduces the current under conditions which would tend to damage the control system. A sensing amplifier has a summing input connected to in- dividual sensors of the voltage, current and temperature parameters of the power transistor and an output summed with the speed signal to the transistor and provide an overriding motor current control. An extremely high level of any single sensed parameter effectively reduces the input to the tran- sistor regulator. A somewhat lower sensed level of the com- bination of any two of the parameters similarly responds and sensing of all three parameters at a further reduced level also similarly responds to reduce the motor speed. - 0 -
258355
LandOfFree
Electric trolling motor apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Electric trolling motor apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electric trolling motor apparatus will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1059916