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    • 1. 发明申请
    • LOW DROP OUT VOLTAGE REGULATO
    • 低压降稳压器
    • US20120161734A1
    • 2012-06-28
    • US12978383
    • 2010-12-23
    • Chen-Yu Wu
    • Chen-Yu Wu
    • G05F1/10
    • G05F1/575
    • A low drop out (LDO) voltage regulator having an error amplifier, a power transistor, a first voltage division unit, a compensation control unit and a compensation bias current source is provided. The error amplifier generates a control voltage according to a first reference voltage and a feedback voltage. The power transistor generates an output voltage at a drain of the power transistor according to the control voltage. The first voltage division unit divides the output voltage to generate the feedback voltage. The compensation control unit generates a compensation control signal to the compensation bias current source according to the control voltage, the output voltage and a compensation bias, so as to make the compensation bias current source generate a compensation bias current, in which the compensation bias is inversely proportional to a supply voltage and ambient temperature.
    • 提供了具有误差放大器,功率晶体管,第一分压单元,补偿控制单元和补偿偏置电流源的低压降(LDO)稳压器。 误差放大器根据第一参考电压和反馈电压产生控制电压。 功率晶体管根据控制电压在功率晶体管的漏极处产生输出电压。 第一分压单元分压输出电压以产生反馈电压。 补偿控制单元根据控制电压,输出电压和补偿偏置,向补偿偏置电流源生成补偿控制信号,使补偿偏置电流源产生补偿偏置电流,补偿偏置电流为 与电源电压和环境温度成反比。
    • 2. 发明授权
    • Low drop out voltage regulato
    • 低压降稳压器
    • US08471539B2
    • 2013-06-25
    • US12978383
    • 2010-12-23
    • Chen-Yu Wu
    • Chen-Yu Wu
    • G05F1/565
    • G05F1/575
    • A low drop out (LDO) voltage regulator having an error amplifier, a power transistor, a first voltage division unit, a compensation control unit and a compensation bias current source is provided. The error amplifier generates a control voltage according to a first reference voltage and a feedback voltage. The power transistor generates an output voltage at a drain of the power transistor according to the control voltage. The first voltage division unit divides the output voltage to generate the feedback voltage. The compensation control unit generates a compensation control signal to the compensation bias current source according to the control voltage, the output voltage and a compensation bias, so as to make the compensation bias current source generate a compensation bias current, in which the compensation bias is inversely proportional to a supply voltage and ambient temperature.
    • 提供了具有误差放大器,功率晶体管,第一分压单元,补偿控制单元和补偿偏置电流源的低压降(LDO)稳压器。 误差放大器根据第一参考电压和反馈电压产生控制电压。 功率晶体管根据控制电压在功率晶体管的漏极处产生输出电压。 第一分压单元分压输出电压以产生反馈电压。 补偿控制单元根据控制电压,输出电压和补偿偏置,向补偿偏置电流源生成补偿控制信号,使补偿偏置电流源产生补偿偏置电流,补偿偏置电流为 与电源电压和环境温度成反比。
    • 3. 发明授权
    • Control circuit of charge pump circuit for enhancing efficiency and driving capacity
    • 电荷泵电路控制电路,提高效率和驱动能力
    • US08730693B2
    • 2014-05-20
    • US12781165
    • 2010-05-17
    • Chen-Yu Wu
    • Chen-Yu Wu
    • H02M3/18G05F1/10G05F1/00
    • H02M3/07H02M2001/0041H02M2001/0048Y02B70/1491
    • A control circuit of a charge pump circuit is disclosed, which includes a ring oscillator and a load status detection unit. The ring oscillator herein is for producing a clock signal and adjusting the frequency of the clock signal according to a first control signal, and stopping generating the clock signal according to an adjustment signal. The load status detection unit is for producing the first control signal and determining a time point to enable the first control signal according to the voltage drop variation of an output voltage of the charge pump circuit and the adjustment signal, wherein the pulse width of the adjustment signal gets narrower with a smaller drop in amplitude of the output voltage value.
    • 公开了一种电荷泵电路的控制电路,其包括环形振荡器和负载状态检测单元。 这里的环形振荡器用于产生时钟信号并根据第一控制信号调整时钟信号的频率,并根据调整信号停止产生时钟信号。 负载状态检测单元用于产生第一控制信号,并且根据电荷泵电路的输出电压和调整信号的电压降变化确定时间点以使得第一控制信号,其中调整脉冲宽度 信号变窄,输出电压值的幅度变小。
    • 4. 发明申请
    • CONTROL CIRCUIT OF CHARGE PUMP CIRCUIT
    • 充电泵电路的控制电路
    • US20110279102A1
    • 2011-11-17
    • US12781165
    • 2010-05-17
    • Chen-Yu Wu
    • Chen-Yu Wu
    • G05F1/00G05F1/10
    • H02M3/07H02M2001/0041H02M2001/0048Y02B70/1491
    • A control circuit of a charge pump circuit is disclosed, which includes a ring oscillator and a load status detection unit. The ring oscillator herein is for producing a clock signal and adjusting the frequency of the clock signal according to a first control signal, and stopping generating the clock signal according to an adjustment signal. The load status detection unit is for producing the first control signal and determining a time point to enable the first control signal according to the voltage drop variation of an output voltage of the charge pump circuit and the adjustment signal, wherein the pulse width of the adjustment signal gets narrower with a smaller drop amplitude of the output voltage value.
    • 公开了一种电荷泵电路的控制电路,其包括环形振荡器和负载状态检测单元。 这里的环形振荡器用于产生时钟信号并根据第一控制信号调整时钟信号的频率,并根据调整信号停止产生时钟信号。 负载状态检测单元用于产生第一控制信号,并且根据电荷泵电路的输出电压和调整信号的电压降变化确定时间点以使得第一控制信号,其中调整脉冲宽度 信号随着输出电压值的较小降幅而变窄。