Low cost control circuit for sensing the operation of an electri

Details Low cost control circuit for sensing the operation of an electri Low cost control circuit for sensing the operation of an electri

1992-08-10

1994-11-01

Kashnikow, Andres

Dispensing

Automatic control

222 54, 2221291, 2221466, 222644, 338 25, 338307, B67D 500

Patent

active

053601408

ABSTRACT:
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.

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