System and method for generating a drive signal
AssigneeDEKA Products Limited Partnership
InventorsRussell H. Beavis, James J. Dattolo
Life of this patent
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Abstract
A method and computer program product for defining a PWM drive signal having a defined voltage potential. The PWM drive signal has a plurality of “on” portions and a plurality of “off” portions that define a first duty cycle for regulating, at least in part, a flow rate of a pump assembly. At least a portion of the “on” portions of the PWM drive signal are pulse width modulated to define a second duty cycle for the at least a portion of the “on” portions of the PWM drive signal. The second duty cycle regulates, at least in part, the percentage of the defined voltage potential applied to the pump assembly.
Claims10
A fluid dispensing system comprising:
- at least one product container having a micro-ingredient therein;
- at least one pump assembly in fluid communication with the at least one product container;
- and
- at least one microprocessor generating a pulse width modulated (PWM) drive signal having a defined voltage potential,
- wherein the PWM drive signal has a plurality of “on” portions and a plurality of “off” portions that define a first duty cycle for regulating a first flow rate of the at least one pump assembly,
- wherein at least a portion of the “on” portions of the PWM drive signal define a second duty cycle for regulating a percentage of the defined voltage potential applied to the at least one pump assembly,
- wherein the at least one microprocessor measures a second flow rate using a flow measuring device.
Dependencies are inferred from the claim text.