Multiplexer and semiconductor device including the same

    公开(公告)号:US11962295B2

    公开(公告)日:2024-04-16

    申请号:US17387221

    申请日:2021-07-28

    CPC classification number: H03K17/693 H02M3/07 H03M1/122

    Abstract: A multiplexer includes a charging circuit; a plurality of sampling switches receiving a plurality of input signals; and a plurality of boosting circuits connected between the sampling switches and the charging circuit and sharing the charging circuit. First and second charging switches of the charging circuit are controlled by a first clock signal. Each of the boosting circuits includes a first boosting switch connected to a first node of the charging circuit and a gate of one of the sampling switches, a second boosting switch connected between a second node of the charging circuit and the one sampling switch, and a level shifter configured to control the first boosting switch and the second boosting switch in response to a second clock signal and a selection signal.

    DIGITAL-TO-ANALOG CONVERTER AND APPARATUS INCLUDING THE SAME

    公开(公告)号:US20240405782A1

    公开(公告)日:2024-12-05

    申请号:US18797157

    申请日:2024-08-07

    Abstract: An apparatus configured to transmit and receive a radio frequency (RF) signal is provided. The apparatus includes a digital-to-analog converter (DAC) configured to convert a digital signal into an analog signal, a power amplifier configured to amplify the analog signal, and an antenna configured to output, as the RF signal, the amplified analog signal to the outside. The DAC includes a current cell matrix including a plurality of current cells configured to generate the analog signal, a plurality of normal paths configured to control the plurality of current cells to be turned on or off, based on the digital signal, and a plurality of alternative paths configured to selectively consume power, based on a pattern of the digital signal.

    POWER SUPPLY DEVICE AND ELECTRONIC DEVICE COMPRISING SAME

    公开(公告)号:US20230152874A1

    公开(公告)日:2023-05-18

    申请号:US18096993

    申请日:2023-01-13

    CPC classification number: G06F1/3218 G10L15/22 G06F1/3296 G10L2015/223

    Abstract: An electronic device comprising: a power supply apparatus including a first converter configured to generate driving power and a second converter configured to generate first standby voltage and second standby voltage; and a main body operated based on the driving power and the second standby power received from the power supply apparatus. The second converter is configured to: during a normal mode operation and a standby mode operation, obtain the first standby voltage and adjust the first standby power based on the obtained standby power; and during the standby mode operation, obtain the second standby voltage; and in response to the obtained second standby voltage being equal to or less than a reference level, perform the normal mode operation to control the first standby voltage to be maintained at a first voltage level and control the second standby voltage to be maintained at a second voltage level.

    TOUCH ANALOG FRONT END AND TOUCH SENSOR CONTROLLER HAVING THE SAME
    10.
    发明申请
    TOUCH ANALOG FRONT END AND TOUCH SENSOR CONTROLLER HAVING THE SAME 有权
    触摸模拟前端和触摸传感器控制器

    公开(公告)号:US20160098150A1

    公开(公告)日:2016-04-07

    申请号:US14851775

    申请日:2015-09-11

    Abstract: A touch analog front-end (AFE) and a touch sensor controller (TSC) are provided. The touch AFE includes a transmitter configured to charge a touch panel and a receiver configured to sense the touch panel. The receiver includes a charge-to-voltage (C2V) converter configured to convert an amount of change of capacitance received from the touch panel into a voltage signal, a filter configured to filter a noise from the voltage signal, resulting in a filtered voltage signal, an integrator configured to accumulate the filtered voltage signal, and a polarity detection circuit configured to monitor the filtered voltage signal and to control the integrator to invert a polarity of the filtered voltage signal when it is negative.

    Abstract translation: 提供触摸模拟前端(AFE)和触摸传感器控制器(TSC)。 触摸AFE包括被配置为对触摸面板充电的发射器和被配置为感测触摸面板的接收器。 所述接收器包括电荷电压(C2V)转换器,其被配置为将从触摸面板接收的电容量的变化量转换成电压信号,滤波器被配置为滤除来自所述电压信号的噪声,从而产生经滤波的电压信号 被配置为累积经滤波的电压信号的积分器,以及极性检测电路,被配置为监视经滤波的电压信号,并且当积分器为负时,控制积分器反相滤波电压信号的极性。

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