Electronic driver for water treatment system UV bulb

Details Electronic driver for water treatment system UV bulb Electronic driver for water treatment system UV bulb

1995-08-02

1997-03-18

Drodge, Joseph W.

Liquid purification or separation

With alarm, indicator, register, recorder, signal or...

Responsive to fluid flow

210192, 250435, 307117, 340606, 427105, 4271863, C02F 132

Patent

active

056119186

ABSTRACT:
A driver or ballast for the ultraviolet bulb of a water treatment system. The driver includes a step-up transformer and a feedback oscillator connected between the secondary and the primary of the transformer. The secondary of the transformer also is selectably connected through one of two different capacitor compensators depending on water flow through the system. In a low intensity mode, the current and the power factor output of the driver are relatively low--preferably just enough to keep the bulb filaments energized. In a high intensity mode, the current and the power factor are relatively high to power the bulb at a relatively high efficiency. The driver operates at a relatively low DC voltage. A voltage converter selected as function of the local line voltage converts the AC line voltage to the necessary DC voltage.

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patent: 5519289 (1996-05-01), Katyl et al.
patent: 5547590 (1996-08-01), Szabo

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