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    • 2. 发明申请
    • AMPLIFIER WITH MULTIPLE ZERO-POLE PAIRS
    • 具有多个零点对的放大器
    • US20130027007A1
    • 2013-01-31
    • US13192301
    • 2011-07-27
    • Kai ZhongJohn Yu
    • Kai ZhongJohn Yu
    • G05F1/10H03F3/45
    • H03F3/45179G05F1/56H03F1/086H03F2203/45352
    • An amplifier is disclosed. In accordance with some embodiments of the present disclosure, an amplifier may comprise a differential pair comprising a first transistor and a second transistor, wherein the first transistor comprises a first portion and a second portion, a first compensation circuit comprising a first terminal coupled to the first portion of the first transistor and a second terminal coupled to the second transistor, and a second compensation circuit comprising a first terminal coupled to the second portion of the first transistor and a second terminal coupled to the second transistor and the second terminal of the first compensation circuit.
    • 公开了放大器。 根据本公开的一些实施例,放大器可以包括包括第一晶体管和第二晶体管的差分对,其中第一晶体管包括第一部分和第二部分,第一补偿电路包括耦合到 第一晶体管的第一部分和耦合到第二晶体管的第二端子,以及第二补偿电路,包括耦合到第一晶体管的第二部分的第一端子和耦合到第二晶体管的第二端子和第一晶体管的第二端子 补偿电路。
    • 7. 发明授权
    • Method and apparatus for selectable DC to DC conversion
    • 用于可选DC-DC转换的方法和装置
    • US5684682A
    • 1997-11-04
    • US503958
    • 1995-07-19
    • Zhong Kai ZhongDaniel Tran
    • Zhong Kai ZhongDaniel Tran
    • H02M3/07
    • H02M3/07
    • A method and apparatus for DC-DC conversion. The apparatus includes a voltage detector (152) for detecting a voltage level in the circuit; a capacitive voltage doubler configuration of the DC to DC conversion circuits (130); a capacitive voltage tripler configuration of the DC to DC conversion circuits (130); selector circuitry (134) responsive to the voltage detector (152) for enabling the doubler or tripler configurations; and a voltage regulator (132) for regulating the converted DC voltages. The selector circuitry (134) initially enables the doubler, and then disables the doubler and enables the tripler when the voltage level drops below a reference voltage. In an alternate embodiment, high load signal HLVBB is provided when a high power load is to be enabled, such that the selector circuitry (134) temporarily disables the doubler and temporarily enables the tripler until the high load signal is inactive.
    • 一种用于DC-DC转换的方法和装置。 该装置包括用于检测电路中的电压电平的电压检测器(152) DC-DC转换电路(130)的容性倍压器配置; DC-DC转换电路(130)的容性电压三倍体配置; 选择器电路(134),其响应于所述电压检测器(152)以实现倍增器或三通道配置; 和用于调节转换的直流电压的电压调节器(132)。 选择器电路(134)最初使能倍频器,然后禁用倍频器,并且当电压电平下降到参考电压以下时,使能三通路。 在替代实施例中,当要启用高功率负载时,提供高负载信号HLVBB,使得选择器电路(134)暂时禁用倍增器,并且在高负载信号无效之前暂时使能三倍。
    • 9. 发明授权
    • Temperature dependent voltage regulator
    • 温度依赖电压调节器
    • US08922178B2
    • 2014-12-30
    • US12905241
    • 2010-10-15
    • Kai ZhongPengbei Zhang
    • Kai ZhongPengbei Zhang
    • G05F1/00G05F3/02G05F1/567
    • G05F1/567
    • Systems and methods for reducing power consumption of a voltage regulator are disclosed. In accordance with one embodiment of the present disclosure a voltage regulator comprises an input node configured to receive a reference voltage and an output node configured to output an output voltage. The output voltage is a function of the reference voltage and a regulating current. The regulator further comprises a proportional to absolute temperature (PTAT) circuit coupled to at least one of the output node and the input node. The PTAT circuit is configured to vary at least one of the reference voltage and the regulating current as a function of temperature.
    • 公开了用于降低电压调节器的功耗的系统和方法。 根据本公开的一个实施例,电压调节器包括被配置为接收参考电压的输入节点和被配置为输出输出电压的输出节点。 输出电压是参考电压和调节电流的函数。 调节器还包括与绝对温度(PTAT)电路成比例的耦合到输出节点和输入节点中的至少一个的电路。 PTAT电路被配置为根据温度改变参考电压和调节电流中的至少一个。
    • 10. 发明授权
    • Capless regulator overshoot and undershoot regulation circuit
    • 无电压调节器过冲和下冲调节电路
    • US08436595B2
    • 2013-05-07
    • US12901868
    • 2010-10-11
    • John Wayne SimmonsKai Zhong
    • John Wayne SimmonsKai Zhong
    • G05F1/565
    • G05F1/575
    • Systems and methods for reducing voltage undershoot and overshoot of a voltage regulator are disclosed. In one embodiment of the present disclosure, an undershoot/overshoot regulation circuit comprises a control node having a control voltage. The regulation circuit also comprises a control circuit configured to increase the control voltage in response to a load being applied to an output node of a voltage regulator and decrease the control voltage in response to the load being removed from the output node. The regulation circuit also comprises a control capacitor including a first terminal coupled to the control node and a second terminal coupled to a gate node of the voltage regulator. The control capacitor is configured to increase a gate voltage at the gate node in response to the increase of the control voltage, and decrease the gate voltage in response to the decrease of the control voltage.
    • 公开了用于减小电压调节器的电压下冲和过冲的系统和方法。 在本公开的一个实施例中,下冲/超调调节电路包括具有控制电压的控制节点。 调节电路还包括控制电路,其被配置为响应于施加到电压调节器的输出节点的负载而增加控制电压,并且响应于从输出节点移除负载而减小控制电压。 调节电路还包括控制电容器,其包括耦合到控制节点的第一端子和耦合到电压调节器的栅极节点的第二端子。 控制电容器被配置为响应于控制电压的增加而增加栅极节点处的栅极电压,并且响应于控制电压的降低而降低栅极电压。