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A double sided primed circuit board is shown wherein one side is etched for receiving a plurality of surface mounted components constituting a control circuit. In one embodiment the control circuit provides for regulating the operation of a plurality to the beverage dispensing valves. An op-amp moni

A double sided primed circuit board is shown wherein one side is etched for receiving a plurality of surface mounted components constituting a control circuit. In one embodiment the control circuit provides for regulating the operation of a plurality to the beverage dispensing valves. An op-amp monitors the conductor for sensing the operation of the beverage dispensing valves as a function of a voltage drop there across. The conductor operates as a resistor, and any heating thereof that occurs as a result of the operation of the beverage dispensing valves is dissipated over the entire surface area of the circuit board. The control circuit also operates a dump valve for periodically dumping beverage if any of the valves have not been operated for a set period of time. The control circuit deactivates the operation of the dump valve during any sensed operation of one of the beverage dispense valves.

대표청구항 ▼

An electronic control circuit for sensing the operation of an electrically operated device, comprising: a double sided printed circuit board having an electronic control circuit means on a first surface thereof, and a resistance means comprising a plated conductor extending in a meandering pattern o

An electronic control circuit for sensing the operation of an electrically operated device, comprising: a double sided printed circuit board having an electronic control circuit means on a first surface thereof, and a resistance means comprising a plated conductor extending in a meandering pattern over a second surface of the circuit board from a first conductor end to a second conductor end thereof, and the plated conductor electrically connected to each of one or more first electrically operable devices, and the control circuit means including electrical current sensing means, the sensing means electrically connected to the plated conductor for sensing a voltage drop there across resulting from the operating of one or more of the first devices, and the control circuit means connected to a second electrically operable device for controlling the operation thereof, and the control circuit means further including means for preventing the operating of the second device during the sensed operating of one or more of the first devices as determined by the current sensing means.