首页> 外国专利> Boosting circuit, display device using the step-up circuit, the step-up method and the method for supplying power to the display device using the step-up method using the step-up circuit

Boosting circuit, display device using the step-up circuit, the step-up method and the method for supplying power to the display device using the step-up method using the step-up circuit

机译：升压电路，使用该升压电路的显示装置，该升压方法以及使用该升压电路的升压方法向显示装置供电的方法

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摘要

PPROBLEM TO BE SOLVED: To solve the problem that the quality of a displayed image is deteriorated when ripple noise occurs when switching a scanning signal of a display if a voltage boosting circuit where ripple noise occurs in a boosting voltage output by a switching operation for connection switching is used for the display. PSOLUTION: The voltage boosting circuit shifts a feedback voltage by a signal synchronized with a control signal and controls the timing of a feedback control system operation. When the voltage boosting circuit is used as a power supply circuit of the display, a voltage boosting operation is restricted near a switching timing of the scanning signal of the display. Thus, a phenomenon where noise due to the voltage boosting circuit affects the image quality of the display is prevented. PCOPYRIGHT: (C)2010,JPO&INPIT

机译：

要解决的问题：如果在通过开关输出的升压电压中出现波纹噪声的升压电路中，当切换显示器的扫描信号时出现波纹噪声时，显示图像的质量下降的问题得到解决。显示使用连接切换操作。

解决方案：升压电路通过与控制信号同步的信号来改变反馈电压，并控制反馈控制系统操作的时序。当升压电路用作显示器的电源电路时，在显示器的扫描信号的切换定时附近限制升压操作。因此，防止了由于升压电路引起的噪声影响显示器的图像质量的现象。

版权：（C）2010，日本特许厅＆INPIT 展开▼

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公开/公告号JP5448477B2

专利类型
公开/公告日2014-03-19

原文格式PDF
申请/专利权人ルネサスエレクトロニクス株式会社;
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申请/专利号JP20090024211
发明设计人宮崎喜芳;
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申请日2009-02-04
分类号H02M3/07;G09G3/20;G02F1/133;
国家 JP
入库时间 2022-08-21 16:13:57

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