System and method for generating a drive signal

A fluid dispensing system comprising:

• a storage subsystem comprising:
• a control logic subsystem;
• a high volume ingredient subsystem;
• a micro-ingredient subsystem;
• and
• a plumbing/control subsystem,
• wherein the high volume ingredient subsystem, the micro-ingredient subsystem and the plumbing/control subsystem are coupled to the control logic subsystem, and
• wherein the control logic subsystem comprising a bus interface for converting control signals provided by a microprocessor into a form usable by the high-volume ingredient subsystem, the micro-ingredient subsystem and the plumbing/control subsystem, and
• wherein the control signals define a volume of micro-ingredients to be pumped, and
• wherein the control logic subsystem configured to
• define a 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, at least in part, a flow rate of a pump assembly;
• and
• pulse width modulate at least a portion of the “on” portions of the PWM drive signal to define a second duty cycle for the at least a portion of the “on” portions of the PWM drive signal, wherein the second duty cycle regulates, at least in part, the percentage of the defined voltage potential applied to the pump assembly.