Electricity: electrical systems and devices – Electric charge generating or conducting means – Modification of environmental electric charge
Patent
1986-09-15
1988-07-12
Hix, L. T.
Electricity: electrical systems and devices
Electric charge generating or conducting means
Modification of environmental electric charge
361235, H05F 304
Patent
active
047574224
ABSTRACT:
A dynamically balanced ion generator is provided which incorporates a detection screen and feedback loop to ensure that the number of positive and negative ions emitted from the generator are substantially equal. The detection screen is located between the ion generating electrodes and the exit port of the device, and is contructed of conductive material which captures a predetermined percentage of ions emitted by the electrodes. The detected imbalance is corrected through a feedback loop comprising an operational amplifier circuit, a low pass filter, a balance control comparator, variable duty cycle oscillator. By varying the duty cycle of the variable duty cycle oscillator, the voltage applied to the primary of a high voltage transformer is controlled such that the relative concentrations of positive and negative ions generated may be altered to compensate for any detected imbalance.
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Betker Michael R.
Bossard Peter R.
Dunphy, Jr. Robert H.
Hix L. T,.
Rutledge D.
Voyager Technologies, Inc.
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