Signal output protection device
The utility model discloses a signal output protection device which comprises a buffer unit and a sampling control unit. The signal input end of the buffer unit is connected with a signal source. The signal output end of the buffer unit is connected with an LCD screen. The power supply end of the bu...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The utility model discloses a signal output protection device which comprises a buffer unit and a sampling control unit. The signal input end of the buffer unit is connected with a signal source. The signal output end of the buffer unit is connected with an LCD screen. The power supply end of the buffer unit is connected with the power supply control end of the sampling control unit and receives the voltage input of the power supply control end. The input end of the sampling control unit is connected with the signal source, and the output end is connected with the LCD screen to power the LCD screen. According to the current abnormity of the output end, the sampling control unit cuts off the voltage output of the power supply control end and the output end, so as to control the buffer unit to stop working and control the sampling control unit to stop powering the LCD screen. Signal source and LCD screen isolation protection is realized. According to the signal output protection device provided by the utility m |
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