Patent ID: 9734784
Date: 2017-08-15
CPC Classifications: G05F,G09G,G11C

Claim:
1. A voltage output device, comprising a direct-current power supply, wherein the voltage output device further comprises a reference level input terminal, a predetermined level output terminal, a voltage regulation module and a control signal generation module, the control signal generation module comprises a control signal generation unit, and the voltage regulation module comprises a plurality of storage capacitors, wherein the control signal generation unit is capable of sending a charging control signal to the voltage regulation module in a charging stage of the voltage output device, so as to enable a first terminal of each storage capacitor in the voltage regulation module to be connected to the direct-current power supply, and enable a second terminal of each storage capacitor to be connected to the reference level input terminal, and the control signal generation unit is capable of sending an operation control signal to the voltage regulation module in an operating stage of the voltage output device, so as to enable a plurality of storage capacitors of the voltage regulation module to be connected in series to form a first capacitor set, a first terminal of the first capacitor set is selectively connected to the reference level input terminal or the direct-current power supply, and a second terminal of the first capacitor set is selectively connected to the predetermined level output terminal.