H - Electricity – 02 – H
Patent
H - Electricity
02
H
330/1
H02H 7/20 (2006.01) H03F 1/52 (2006.01) H03F 3/343 (2006.01) H03F 3/68 (2006.01)
Patent
CA 1178345
ABSTRACT OF THE DISCLOSURE A protective circuit for a power amplifier includes an input terminal connected to the output terminal of a power amplifier to be protected and supplied with an output signal to a load from the power amplifier, a high frequency signal detector connected to the input terminal for detecting a higher frequency signal than that of audio frequency range and for producing a first control signal when the output of the high frequency signal exceeds a predetermined value, a control and driving circuit supplied with the first control signal, and a protective circuit controlled by the output of the control and driving circuit so as to disconnect the connection between the output terminal of the power amplifier and the load.
408596
Gowling Lafleur Henderson Llp
Sony Corporation
LandOfFree
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