Apparatus for Controlling an Electrolytic Cell in a Water Purification System

摘要

A system comprises a water purification system having an electrolytic cell to receive a flow of waste water. A power source supplies power to the electrolytic cell. The power source at least comprises an H-bridge controller to apply power to the electrolytic cell. A device senses an amount of current being supplied to the H-bridge controller. An analog-to-digital device outputs a digital signal representative of the sensed current. A processor processes the digital signal and outputs a plurality of pulse width modulated control signals for the H-bridge controller. The control signals control the H-bridge controller to apply the power during a first period of time with a current in a first direction to maintain an average for the sensed current, and to apply the power during a second period of time with the current in a second direction to maintain the average.

主权项

1. An apparatus comprising:
a H-bridge motor controller device being configured to apply power to a resistive-capacitive load; a current sense device being configured to sense an amount of current being supplied to said H-bridge motor controller device, said current sense device producing an analog signal indicative of said sensed current; an analog-to-digital conversion device in communication with said current sense device and being configured to convert said analog signal to a digital signal representative of said sensed current and output said digital signal; and a first processor in communication with said analog-to-digital conversion device to at least receive said digital signal, said processor being configured to process said digital signal and output a plurality of control signals for said H-bridge motor controller device, at least a portion of said control signals being pulse width modulated, said control signals being operative to control said H-bridge motor controller device to apply said power during a first period of time with a current in a first direction to maintain a predetermined average for said sensed current, and to apply said power during a second period of time with said current in a second direction to maintain said predetermined average for said sensed current, said processor further instructing said analog-to-digital processor to periodically convert said analog signal during said first period of time and said second period of time.