Device for electronic direction control of trolling motors
US4114074A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 23, 1976 |
| Grant date | Sep 12, 1978 |
| Priority date | — |
| Expiry date | Nov 23, 1996 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P7/03
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Disclosed is a device for electronic direction control of trolling motors for maneuvering boats. The device includes a power supply, a steering mechanism including a motor for altering the direction of the trolling motor thrust, a direction control for generating a signal proportional to the desired direction of trolling motor thrust, and a direction sensor for generating a signal proportional to the actual direction of trolling motor thrust. Two electronic circuits are provided to process the desired and actual direction signals. The first circuit provides a pulse width modulated output signal which variably controls the angular velocity of the steering mechanism by controlling the operational state of a switching circuit having at least one transistor and thereby controlling the flow of current to the steering motor. The second circuit provides an output signal which controls the direction of steering mechanism rotation by controlling the operational state of a direction relay and thereby controlling the direction of current flow to the steering motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.