Ultraviolet Disinfection

Designed several cards for industrial ultraviolet water disinfection machines. Including a programmable logic controlled 28-lamp system activity monitor featuring high voltage current sensing, lamp life timer, lamp failure alarms, and AC to DC power supply. Involved concept development, electronic circuit design, system engineering, schematics, printed circuit card (PCB) layout, firmware, test and integration.

Designed a 254nm light-sensing unit to monitor radiation levels; and redesigned an electronic ballast resulting in 23% higher output while lowering power input by 15%. Involved concept development, electronic circuit design and schematics.

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