DRIVING LIGHT EMITTING ELEMENTS WITH REDUCED VOLTAGE DRIVERS

    公开(公告)号:US20180219352A1

    公开(公告)日:2018-08-02

    申请号:US15876770

    申请日:2018-01-22

    Abstract: In one example, a method includes outputting, by a power supply and across a supply node and a ground node, a supply power signal; and selectively outputting, by a driver, a power signal to a second terminal of a light emitting element that has a first terminal and the second terminal, wherein the first terminal of the light emitting element is coupled to a load node, wherein a supply terminal of the driver is coupled to the supply node, wherein a ground terminal driver is coupled to the ground node, and wherein a difference between a potential of the supply node and a potential of the ground node is less than an activation voltage of the light emitting element.

    USING A SAMPLING SWITCH FOR MULTIPLE EVALUATION UNITS

    公开(公告)号:US20200052711A1

    公开(公告)日:2020-02-13

    申请号:US16058749

    申请日:2018-08-08

    Abstract: In some examples, an integrated circuit device includes a sampling switch configured to sample an input signal. The integrated circuit device also includes a first evaluation unit configured to receive the sampled input signal from the sampling switch and evaluate the sampled input signal. The integrated circuit device further includes a second evaluation unit configured to receive the sampled input signal from the sampling switch and evaluate the sampled input signal. The sampling switch is configured to deliver the sampled input signal to the first evaluation unit and deliver the sampled input signal to the second evaluation unit.

    METHOD AND DEVICE FOR USE IN ANALOG-TO-DIGITAL CONVERSION
    28.
    发明申请
    METHOD AND DEVICE FOR USE IN ANALOG-TO-DIGITAL CONVERSION 有权
    用于模拟数字转换的方法和设备

    公开(公告)号:US20160020778A1

    公开(公告)日:2016-01-21

    申请号:US14745620

    申请日:2015-06-22

    CPC classification number: H03M1/468 H03M1/002 H03M1/0863 H03M1/466

    Abstract: Disclosed herein are embodiments of a precharge sample-and-hold circuit. The circuit has an input terminal, a reference voltage terminal and an output terminal. Further, the circuit has a sampling capacitance coupled between the input terminal and the reference voltage terminal and configured to provide the sample voltage when said sample-and-hold circuit is in a holding mode and a cancellation capacitance. Implementations of a precharge sample-and-hold circuit and of methods to operate a precharge sample-and-hold circuit in an analog/digital converter are also disclosed.

    Abstract translation: 这里公开了预充电采样和保持电路的实施例。 该电路具有输入端子,参考电压端子和输出端子。 此外,电路具有耦合在输入端子和参考电压端子之间的采样电容,并且被配置为当所述采样保持电路处于保持模式和抵消电容时提供采样电压。 还公开了预充电采样保持电路的实现以及在模拟/数字转换器中操作预充电采样和保持电路的方法。

    Oscillator Devices and Methods
    29.
    发明申请
    Oscillator Devices and Methods 有权
    振荡器装置和方法

    公开(公告)号:US20150180483A1

    公开(公告)日:2015-06-25

    申请号:US14138290

    申请日:2013-12-23

    CPC classification number: H03L7/06 H03K3/0231 H03L7/00 H03L7/02 H03L7/18

    Abstract: Oscillator devices and corresponding methods are disclosed. In some embodiments an apparatus includes an oscillator circuit arrangement, a frequency variable resistor circuit coupled to an output of the oscillator circuit arrangement and a reference resistor circuit. The apparatus further includes a sample and hold circuit, wherein a first input of the sample and hold circuit is coupled to an output of the reference resistor circuit and a second input of the sample and hold circuit is coupled to an output of the frequency variable resistor circuit, wherein an output of the sample and hold circuit is coupled with an input of the oscillator circuit arrangement.

    Abstract translation: 公开了振荡器装置和相应的方法。 在一些实施例中,一种装置包括振荡器电路装置,耦合到振荡器电路装置的输出的频率可变电阻电路和参考电阻电路。 该装置还包括采样和保持电路,其中采样和保持电路的第一输入耦合到参考电阻电路的输出,并且采样和保持电路的第二输入耦合到频率可变电阻器 电路,其中所述采样和保持电路的输出与所述振荡器电路装置的输入耦合。

    Method for Driving a Load
    30.
    发明申请
    Method for Driving a Load 有权
    驾驶负载的方法

    公开(公告)号:US20140203846A1

    公开(公告)日:2014-07-24

    申请号:US13745516

    申请日:2013-01-18

    CPC classification number: H03K17/284 H03K17/166

    Abstract: An electronic switch includes a load path connected in series with the load and a drive terminal for receiving a drive signal. The electronic switch is operable to switch between a first operation state and a second operation state dependent on the drive signal. In a first switching cycle, the electronic switch is switched from the first operation state to the second operation state and a voltage across the load is evaluated during the first switching cycle in order to obtain a measured switching profile. The measured switching profile is compared with a reference profile. A drive profile dependent on the comparison is provided. The drive profile is used to drive the electronic switch in a second switching cycle after the first switching cycle. At least two drive parameters are used at different times in the at least one second switching cycle to drive the electronic switch.

    Abstract translation: 电子开关包括与负载串联连接的负载路径和用于接收驱动信号的驱动端子。 电子开关可操作以取决于驱动信号在第一操作状态和第二操作状态之间切换。 在第一开关周期中,电子开关从第一操作状态切换到第二操作状态,并且在第一开关周期期间评估负载两端的电压,以获得测量的开关曲线。 将测量的切换轮廓与参考轮廓进行比较。 提供了依赖于比较的驱动器配置文件。 驱动器配置文件用于在第一个开关周期之后的第二个开关周期中驱动电子开关。 在至少一个第二切换周期中,在不同时间使用至少两个驱动参数来驱动电子开关。

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