Amplifier malfunction detector

Details Amplifier malfunction detector Amplifier malfunction detector

H - Electricity

02

H

330/3, 352/20.8

H02H 7/20 (2006.01) H02H 3/28 (2006.01)

Patent

CA 1098596

ABSTRACT A detection device for sensing malfunctions in a wide band power amplifier driving the take-up spool motor of a reel-to-reel tape transport system, is disclosed A feedback loop is connected from the output of the amplifier to a malfunction junction positioned at the input of the amplifier. The signal at the malfunction junction is monitored and compared with a predetermined range of standard reference signal. Whenever the malfunction junction signal is out of the predetermined range, the power amplifier is turned off thereby preventing damage to the tape. A filter means is positioned so as to desensitize the compare means until the amplifier is operating at steady state.

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