POWER SUPPLY CIRCUIT
PURPOSE:To protect a power amplifier for output from breakdown when the output side of the amplifier short-circuits without using any components requiring exchange of fuse, etc., in a power supply circuit which supplies electric power to the amplifier, etc. CONSTITUTION:At the time of making power s...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | PURPOSE:To protect a power amplifier for output from breakdown when the output side of the amplifier short-circuits without using any components requiring exchange of fuse, etc., in a power supply circuit which supplies electric power to the amplifier, etc. CONSTITUTION:At the time of making power supply by operating a power switch 18, a signal having a specific frequency is supplied onto the output line 21 of power amplifier 5 by using a microcomputer 1 and, at the same time, the power supply to the amplifier 5 is controlled by detecting the presence/ absence of the signal having a specific frequency on the line 21. |
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