Patents by Inventor Tunghai Chin

Tunghai Chin has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • AC--AC Converter device
    Patent number: 4247887
    Abstract: The present invention is an AC--AC converter device comprising a converter circuit capable of producing an instantaneously varying output voltage, and a coupled reactor commutating inverter circuit cascade-connected thereto, the inverter circuit having a plurality of thyristors which are rendered conductive in a predetermined sequence, in which the output voltage of the converter circuit is rendered positive, negative or zero as necessary to effect commutation and current control in the inverter circuit.
    Type: Grant
    Filed: July 28, 1978
    Date of Patent: January 27, 1981
    Inventor: Tunghai Chin