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    • 1. 发明申请
    • BOOSTED VOLTAGE GENERATOR FOR INCREASING BOOSTING EFFICIENCY ACCORDING TO LOAD AND DISPLAY APPARATUS INCLUDING THE SAME
    • 用于根据装载和显示装置增加升压效率的增压电压发生器
    • US20090184751A1
    • 2009-07-23
    • US12355329
    • 2009-01-16
    • Sung-Jin ParkJung Bong Lee
    • Sung-Jin ParkJung Bong Lee
    • G05F1/10
    • G05F1/563H02M3/07
    • A boosted voltage generator for increasing boosting efficiency according to the amount of load and display apparatus including the same are provided. The boosted voltage generator includes an input voltage generator configured to generate a first input voltage or a second input voltage based on a reference voltage, compare the reference voltage with a feedback boosted voltage fed back based on the amount of load at an output terminal, and output a comparison result; and a booster configured to boost the first or second input voltage using at least one external capacitor based on the comparison result and output a boosting result as a boosted voltage to the output terminal. The boosted voltage generator and the display apparatus including the same can increase the boosting efficiency according to the amount of load.
    • 提供了一种用于根据负载量提高增压效率的升压电压发生器和包括其的显示装置。 升压型电压发生器包括:输入电压发生器,被配置为基于参考电压产生第一输入电压或第二输入电压,将参考电压与基于输出端的负载量反馈的反馈升压电压进行比较;以及 输出比较结果; 以及升压器,其被配置为基于所述比较结果使用至少一个外部电容器来升高所述第一或第二输入电压,并将作为升压电压的升压结果输出到所述输出端子。 升压型电压发生器和包括该升压型电压发生器的显示装置可以根据负载量来提高升压效率。
    • 2. 发明授权
    • Comparator with offset voltage
    • 具有失调电压的比较器
    • US06801059B2
    • 2004-10-05
    • US10201788
    • 2002-07-25
    • Jung-Bong Lee
    • Jung-Bong Lee
    • H03K522
    • H03K5/2481
    • A comparator according to the present invention can generate an output signal of low or high level by comparing a first and second input voltages that have a common voltage. An input stage circuit of a comparator according to the present invention receives a common voltage detection signal. The common voltage is supplied with a first offset voltage when the common voltage detection signal is on low level, and the common voltage is supplied with a second offset voltage when the common voltage detection signal is on high level. Then, the input stage circuit performs amplification to output a voltage difference between the first input voltage and the second input voltage to the comparator. Accordingly, the comparator with offset voltage according to the present invention can sufficiently amplify the input signal difference of low common voltage by selectively applying different offset voltages to a common voltage in accordance with the common voltage level of the input signal. The present invention can be applied to a comparator with offset voltage and an analogue comparator having a differential input stage.
    • 根据本发明的比较器可以通过比较具有公共电压的第一和第二输入电压来产生低电平或高电平的输出信号。 根据本发明的比较器的输入级电路接收公共电压检测信号。 当公共电压检测信号为低电平时,公共电压被提供第一偏移电压,并且当公共电压检测信号处于高电平时,向公共电压提供第二偏移电压。 然后,输入级电路进行放大,将第一输入电压和第二输入电压之间的电压差输出到比较器。 因此,根据本发明的具有偏移电压的比较器可以通过根据输入信号的公共电压电平选择性地将不同的偏移电压施加到公共电压来充分放大低公共电压的输入信号差。 本发明可以应用于具有偏移电压的比较器和具有差分输入级的模拟比较器。