| 摘要 |
A device for generating a low-consumption controlling analogue voltage of stable value adapted for controlling LCD display segments that comprises an input circuit receiving an analogue voltage of given nominal value adapted to generate a picture analogue voltage of reduced value in a ratio k. A driver circuit is provided to receive the picture analogue voltage as a reference signal and a picture signal derived and reduced in the same ratio k from the low-consumption analogue voltage and comprises a differential amplifier supplied with a first and a second constant voltage value for outputting a first and a second switch control pulse. A switching circuit comprising a first switching branch outputting an amplified auxiliary switch control pulse synchronous with the reference signal and a second switching branch controlled by the amplified auxiliary switch control pulse is adapted to outputting the low-consumption analogue voltage switched to the analogue voltage of given value.
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