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Title: High tension voltage source

Abstract: This invention relates to the high tension voltage source using a blocking oscillation circuit, wherein a switching transistor is cut off at a certain preset current value through a primary winding of a step-up transformer, thereby producing an output of almost constant voltage by use of this simple circuit, while reducing power consumption. This invention is applicable as a D.C. high tension voltage source for electrostatic dust collectors, namely cottrells.


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Inventors: Koyama, Masateru (Suita, JP)
Arakawa, Kazuo (Toyonaka, JP)

Application Number: 746749
Filing Date: 1976-12-02
Publication_date: 1978-12-26
Assignee: Matsushita Electric Industrial Co., Ltd. (Kadoma, JP)
Primary Class(es): 323/284 323/285, 323/290, 361/18, 363/21.08
Other Classes:
US Patent Ref:
3093790Jun, 1963Ehret323/DIG.
3435320Mar, 1969Lee et al.363/19.
3820007Jun, 1974Schilling et al.323/22.
3889173Jun, 1975Klusmann et al.323/17.
4005351Jan, 1977Blum363/21.

Other Refs: 2033801
Jan, 1972DE

Primary Examiner: Goldberg, Gerald
Assistant Examiner:
Attorney: Cushman, Darby & Cushman