Patents by Inventor Bertold Stadler

Bertold Stadler 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).

  • Electronic protection for power amplifier
    Patent number: 4016460
    Abstract: An overload protection circuit for an amplifier is disclosed in which a signal supply means connected with the input of the amplifier is deactivated when the output of the amplifier exceeds a given value. Transducer means of the optoelectrical type are connected with the output terminals of the amplifier for operating a bistable device such as an operational amplifier to deactivate the signal supply means as long as the overload voltage occurs. Timing capacitor means maintain the signal supply means de-activated for a given period of time after the overload condition is terminated.
    Type: Grant
    Filed: February 4, 1975
    Date of Patent: April 5, 1977
    Inventor: Bertold Stadler