H - Electricity – 02 – H
Patent
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.
255843
International Business Machines Corporation
Ogilvy Renault
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