U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Ozonator power supply

Patent 4713220 Issued on December 15, 1987. Estimated Expiration Date: Icon_subject February 13, 2007. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

3496092

X-Ray diagnostic generator with an inverter supplying the high-tension transformer
Patent #: 4295049
Issued on: 10/13/1981
Inventor: Ebersberger ,   et al.

Resonant circuit inverter
Patent #: 4442483
Issued on: 04/10/1984
Inventor: Baumann ,   et al.

High frequency series resonant dc-dc converter
Patent #: 4477868
Issued on: 10/16/1984
Inventor: Steigerwald

Ozonator power supply Patent #: 4680694
Issued on: 07/14/1987
Inventor: Huynh ,   et al.

Inventors

Assignee

Application

No. 07/014750 filed on 02/13/1987

US Classes:

422/186.16, With pulse generating means363/136Bridge type

Examiners

Primary: Salce, Patrick R.
Assistant: Sterrett, Jeffrey

Attorney, Agent or Firm

International Classes

C01B 13/11 (20060101)
H02M 7/523 (20060101)
H02M 7/505 (20060101)

Abstract

A versatile pulsed voltage resonant inverter power supply for an ozonator which results in the efficient operation thereof. A resonant inverter ozonator power supply comprises a DC power source and a DC/AC thyristor inverter coupled at its outputs to the primary winding of a high voltage transformer. The ozonator load is connected across the secondary winding of transformer and provides a discharge path during each high frequency cycle. First and second embodiments of control circuits are disclosed for generating gating control signals for the thyristors. The switching frequency at which the thyristors are triggered is selected to be lower than the circuit resonant frequency in order that the load voltage supplied by the inverter is substantially pulsed, and a pulse burst modulation mode is also disclosed.

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