Integrated battery level indicator, method and circuit for a trolling motor controller
First Claim
1. A battery level circuit for a trolling motor, the circuit comprising:
- an LED driver, the LED driver including a low reference voltage input, a high reference voltage input, and a battery voltage input;
a low reference voltage generator, including a low reference transistor (Q103), a buffering resistor, an operational amplifier and a voltage divider, wherein the low reference voltage generator receives a reference input, outputs a low reference scaler and provides the low reference voltage input to the LED driver based on the low reference scaler and a maximum battery voltage;
a high reference voltage generator including a high reference transistor (Q102), a reference diode and the operational amplifier, wherein the high reference voltage generator receives the reference input, outputs a high reference scaler, and provides the high reference voltage input to the LED driver based on the high reference scaler and a maximum battery voltage; and
a battery voltage input circuit including a battery voltage transistor (Q104), the battery voltage input circuit providing the battery voltage input to the LED driver,wherein the LED driver compares the battery voltage input to the low and high reference voltage inputs and illuminates an appropriate number of a plurality of LEDs according to the comparison.
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Accused Products
Abstract
The integrated batter level indicator method and circuit of the present application provides an LED bar graph display proportional to a range of variable throttle control that provides range of speed indication, direction indication, as well as a battery level indicator. The bar graph display is configured to switch between speed or battery mode, preferably switching to battery mode when a user turns the throttle to an off position, while indicating direction of the motor at all times when the motor is in use. The integrated battery level indicator and circuit displays an amount of battery power remaining in the battery by comparing the input signal to a high and low reference level such that as the input varies between the high and low reference levels, the battery voltage is displayed on the indicator. The indicator and circuit of the present application further includes the bar graph display being integrated into the controller head cover of the controller head assembly such that a user can easily view the indicator and even be reminded of the battery level charge without having to think about it or search for it.
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Citations
24 Claims
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1. A battery level circuit for a trolling motor, the circuit comprising:
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an LED driver, the LED driver including a low reference voltage input, a high reference voltage input, and a battery voltage input; a low reference voltage generator, including a low reference transistor (Q103), a buffering resistor, an operational amplifier and a voltage divider, wherein the low reference voltage generator receives a reference input, outputs a low reference scaler and provides the low reference voltage input to the LED driver based on the low reference scaler and a maximum battery voltage; a high reference voltage generator including a high reference transistor (Q102), a reference diode and the operational amplifier, wherein the high reference voltage generator receives the reference input, outputs a high reference scaler, and provides the high reference voltage input to the LED driver based on the high reference scaler and a maximum battery voltage; and a battery voltage input circuit including a battery voltage transistor (Q104), the battery voltage input circuit providing the battery voltage input to the LED driver, wherein the LED driver compares the battery voltage input to the low and high reference voltage inputs and illuminates an appropriate number of a plurality of LEDs according to the comparison. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of battery level indication for a trolling motor, the method comprising:
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calculating a low reference voltage input, and inputting the low reference voltage input into an LED driver; calculating a high reference voltage input, and inputting the high reference voltage input into the LED driver; inputting a current battery voltage into the LED driver, and comparing the current battery voltage with the reference voltage inputs; and displaying the current battery level according to the comparison, and illuminating an LED to illustrate the current battery level. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A controller head assembly for a trolling motor, the assembly comprising:
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a plurality of apertures configured on a controller head cover; a plurality of LEDs coupled with a battery level circuit configured inside the controller head assembly, the plurality of LEDs viewable through the plurality of apertures in the controller head assembly; and a throttle handle rotatable about an axis, such that when the throttle handle is rotated to a throttle off position, the battery level circuit compares a battery voltage input to a scaled low and high reference voltage input and illuminates one of the plurality of LEDs according to the comparison to indicate a current battery level.
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Specification