Patents by Inventor Yefim Tseruel

Yefim Tseruel 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).

  • Frequency doubler and/or self-oscillating inverter
    Patent number: 5041960
    Abstract: An electrical circuit receives an alternating input signal and full-wave rectifies the alternating input signal. The rectified signal is then developed by the circuit into an output signal which has a frequency double the frequency of the alternating input signal. The doubled-frequency output signal is then output to a load. Alternatively, the circuit receives a direct current input signal, converts the direct current input signal into a periodically varying output signal, and outputs the periodically varying output signal to a load.
    Type: Grant
    Filed: February 20, 1990
    Date of Patent: August 20, 1991
    Inventor: Yefim Tseruel