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专利名称：Current regulating circuit发明人：Philip A. Hoffman申请号：US06/671497申请日：19841114公开号：US04658199A公开日：19870414
摘要：A current pulse producing, current regulating circuit includes a SCR arranged topass a current pulse once each positive going half wave input supplied thereto. The SCR iscontrolled by a control circuit free of current feedback and timing circuitry andresponsive to the an unfiltered, rectified A.C. input. The control circuit produces a firingsignal, which is applied to the control electrode of the SCR, at a point during thedownward swing of each positive going half wave input. The control circuit includes a ORfunction circuit responsive to the unfiltered rectified input applied to the control circuitand to an output from a circuit also responsive to the unfiltered rectified input; the lastmentioned circuit having a hysteresis characteristic. The SCR may be operatively
associated with a second SCR and arranged to fire it thereby producing higher amplitudecurrent pulses. Battery charging and forming circuits, as well as off-line power supplies,incorporating the current regulating circuit are disclosed. The input to the control circuitmay be either a full wave or a half wave rectified A.C. input. Batteries of different typesand having different numbers of cells can be accomodated.
申请人：SOLID STATE CHARGER RESEARCH AND DEVELOPMENT
代理人：Leonard Bloom
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