Hybrid digital linear and switched capacitor voltage regulator

    公开(公告)号:US11323026B2

    公开(公告)日:2022-05-03

    申请号:US16563495

    申请日:2019-09-06

    Abstract: An on-die voltage regulator (VR) is provided that can deliver much higher conversion efficiency than the traditional solution (e.g., FIVR, LDO) during the standby mode of a system-on-chip (SOC), and it can save the power consumption significantly, during the connected standby mode. The VR operates as a switched capacitor VR under the low load current condition that is common during the standby mode of the SOC, while it automatically switches to the digital linear VR operation to handle a sudden high load current condition at the exit from the standby condition. A digital proportional-integral-derivative (PID) controller or a digital proportional-derivative-averaging (PDA) controller is used to achieve a very low power operation with stability and robustness. As such, the hybrid VR achieves much higher conversion efficiency than the linear voltage regulator (LVR) for low load current condition (e.g., lower than 500 mA).

    On-package high-bandwidth resonant switched capacitor voltage regulator

    公开(公告)号:US11271475B2

    公开(公告)日:2022-03-08

    申请号:US16440901

    申请日:2019-06-13

    Abstract: Disclosed is an N:1 (where N is an integer such as 3 or higher) resonant star topology converter to generate an input supply (e.g., 1.8V) for a processor (e.g., a system-on-chip (SOC)) from a higher power supply source (e.g., 12.6V) such as a battery or other source. The resonant star topology based regulator can be realized by a combination of on-die and on-package components as opposed to voltage regulators on motherboard with discrete inductor and capacitors. In one example, capacitors of the N:1 resonant star topology are implemented as multilayer ceramic capacitors (MLCC). The architecture of the N:1 resonant star topology based regulator results in high bandwidth. For example, compared to traditional step-down voltage regulators, the N:1 resonant star topology based regulator exhibits ten times higher bandwidth.

    Switched capacitor voltage regulator with high efficiency over a wide voltage range
    15.
    发明授权
    Switched capacitor voltage regulator with high efficiency over a wide voltage range 有权
    开关电容器电压调节器,在高电压范围内具有高效率

    公开(公告)号:US08856562B2

    公开(公告)日:2014-10-07

    申请号:US13862831

    申请日:2013-04-15

    CPC classification number: G05F3/02 H02M3/07

    Abstract: In some embodiments, a voltage regulator device may include a switched capacitor voltage regulator to receive an input voltage and to provide an output voltage to a load, and a control unit to receive information related to a desired output voltage for the switched capacitor voltage regulator and to determine a desired input voltage for the switched capacitor voltage regulator based on the desired output voltage and selected operation mode or modes of switched capacitor voltage regulator. Other embodiments are disclosed and claimed.

    Abstract translation: 在一些实施例中,电压调节器装置可以包括接收输入电压并向负载提供输出电压的开关电容器电压调节器,以及用于接收与开关电容器电压调节器的期望输出电压有关的信息的控制单元,以及 基于期望的输出电压和选择的操作模式或开关电容器电压调节器的模式来确定开关电容器电压调节器的期望输入电压。 公开和要求保护其他实施例。

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