Piezoelectric anion generator controled by integrated circuit

Details Piezoelectric anion generator controled by integrated circuit Piezoelectric anion generator controled by integrated circuit

2005-09-15

2008-03-04

Sherry, Michael (Department: 2836)

Electricity: electrical systems and devices

Electric charge generating or conducting means

Modification of environmental electric charge

C361S230000

Reexamination Certificate

active

07339779

ABSTRACT:
A piezoelectric anion generator controlled by an integrated circuit IC, which includes an oscillation circuit, a frequency following-up circuit, an power amplification circuit, a step-up circuit, a voltage-doubling circuit, an ion discharging pin, a negative feedback voltage-stabilizing circuit and a bleeder circuit. Due to using the integrated circuit IC controlling circuit, it can provide the AC exciting voltage at the certain frequency to the piezoelectric ceramic transformer and has the functions of regulating the exciting voltage and the frequency following up. The piezoelectric ceramic transformer is used as the main AC step-up element to realize the AC high voltage output. After the voltage-doubling commutation the DC high voltage can be obtained, and the anion-discharging pin connected to it generates the high voltage electrical field, and then the gas is ionized to give out a lot of anions.

REFERENCES:
patent: 4757422 (1988-07-01), Bossard et al.
patent: 4846178 (1989-07-01), Fuxue et al.
patent: 2003/0160572 (2003-08-01), Wells et al.

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