Trim tab position monitor

A trim tab position monitor, comprising:

• a motor having a stator and a rotor, said rotor being operatively connected to is said trim tab to move said trim tab relative to said stator in response to rotation of said rotor relative to said stator;
• a sensing circuit connected in electrical communication with said stator for sensing an electrical characteristic of said motor, said sensing circuit comprising a signal conditioning circuit, a zero crossing detector, and a direction determining circuit;
• a counting circuit configured to provide a series of digital pulses which are responsive to said signal conditioning circuit and said zero crossing detector;
• and
• a signal output circuit connected in signal communication with said counting circuit and said direction determining circuit and being configured to provide an analog output signal which is representative of a plurality of said digital pulses, said analog output signal being representative of the position of said trim tab relative to said stator.

A trim tab position monitor, comprising:

• a sensing circuit, connectable in electrical communication with a motor having a stator and a rotor, for sensing an electrical characteristic of said motor, said rotor being operatively connectable to said trim tab to move said trim tab relative to said stator in response to rotation of said rotor relative to said stator, said stator being rotatably attachable to a component which is fixedly attached to a transom of a marine vessel, said sensing circuit comprising a signal conditioning circuit, a zero crossing detector, and a direction determining circuit;
• a counting circuit configured to provide a series of digital pulses which are responsive to said signal conditioning circuit and said zero crossing detector;
• and
• a signal output circuit connected in signal communication with said counting circuit and said direction determining circuit and being configured to provide an analog output signal which is representative of a plurality of said digital pulses, said analog output signal being representative of the position of said trim tab relative to said stator.