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    • 1. 发明申请
    • A POWER FACTOR CORRECTION CONVERTER WITH CURRENT REGULATED OUTPUT
    • 具有电流调节输出的功率因数校正转换器
    • WO2014132589A1
    • 2014-09-04
    • PCT/JP2014/000834
    • 2014-02-18
    • ASAHI KASEI MICRODEVICES CORPORATION
    • MARTIN-LOPEZ, Fernando RamonGAVRILA, Gabriel C.UMEKI, Takahiro
    • H02M3/155H02M7/12H05B37/02
    • H05B37/02H05B33/0815Y02B20/347Y02B20/348
    • A power factor correction converter in a buck-boost configuration may include a set-up circuit configured to supply an input voltage, a buck transistor connected to the set-up circuit, and configured to receive a current from a diode bridge, a first diode connected to the buck transistor, a boost transistor, a resistor connected to the boost transistor, a coil that connects the buck transistor and the boost transistor, a buck-boost PFC regulator connected to the set-up circuit, and configured to regulate a time pattern of the on/off status of the buck transistor and the boost transistor synchronously, a second diode connected to the coil and the boost transistor, and configured to output a first level voltage, a capacitor connected to the second diode and a load connected to the second diode.
    • 降压 - 升压配置中的功率因数校正转换器可以包括被配置为提供输入电压的建立电路,连接到建立电路的降压晶体管,并且被配置为从二极管电桥接收电流,第一二极管 连接到降压晶体管,升压晶体管,连接到升压晶体管的电阻器,连接降压晶体管和升压晶体管的线圈,连接到建立电路的降压 - 升压PFC调节器,并且被配置为调节时间 同步地降压晶体管和升压晶体管的开/关状态的模式,连接到线圈和升压晶体管的第二二极管,并且被配置为输出第一电平电压,连接到第二二极管的电容器和连接到 第二个二极管。
    • 2. 发明申请
    • VARIABLE MODULUS MODULATOR FOR FRACTIONAL-N FREQUENCY SYNTHESIZERS
    • 用于分数N频率合成器的可变模块调制器
    • WO2012169161A1
    • 2012-12-13
    • PCT/JP2012/003619
    • 2012-05-31
    • Asahi Kasei Microdevices CorporationMORAND, CedricCANARD, David
    • MORAND, CedricCANARD, David
    • H03M1/08H03L7/183H03M3/04
    • H03L7/085H03B5/30H03L7/1974H03M7/3004
    • A variable modulus sigma-delta modulator for a fractional-N frequency synthesizer in accordance with the present invention may include an integer division unit; a pulse-width modulation (PWM) generator, a sigma-delta noise-shaping unit, a first input FRAC for receiving a first programmable integer, and a second input MOD for receiving a second input, wherein the integer division unit is configured to perform a translation from the first input and the second input into a first output FRAC ' and a second output R , the PWM generator is configured to receive the second input MOD and the second output R, and generate a modulated pulse signal, and the sigma-delta noise-shaping unit is configured to receive the first output and the modulated pulse signal, and generate a sequence whose average equals approximately the first input over the second input.
    • 根据本发明的用于分数N频率合成器的可变模量Σ-Δ调制器可以包括整数除法单元; 脉冲宽度调制(PWM)发生器,Σ-Δ噪声整形单元,用于接收第一可编程整数的第一输入FRAC和用于接收第二输入的第二输入MOD,其中整数除法单元被配置为执行 从第一输入和第二输入到第一输出FRAC'和第二输出R的转换,PWM发生器被配置为接收第二输入MOD和第二输出R,并产生调制脉冲信号, Δ噪声整形单元被配置为接收第一输出和调制脉冲信号,并且生成其平均值等于第二输入端上的第一输入的序列。
    • 5. 发明申请
    • CANCELLATION SYSTEM FOR PHASE JUMPS AT LOOP GAIN CHANGES IN FRACTIONAL-N FREQUENCY SYNTHESIZERS
    • 在频率合成器中循环增益变化的相位抖动取消系统
    • WO2012172745A1
    • 2012-12-20
    • PCT/JP2012/003625
    • 2012-06-01
    • Asahi Kasei Microdevices CorporationMORAND, CedricCANARD, David
    • MORAND, CedricCANARD, David
    • H03L7/183
    • H03L7/1976H03L7/0898
    • A fractional-N frequency synthesizer having a cancellation system for phase discontinuity due to loop gain changes may include a phase detector, a current-changeable charge-pump, a loop filter for providing a tuning signal, a voltage-controlled oscillator (VCO) controlled by the tuning signal for providing a VCO output signal, a divider for providing a divided VCO signal, a modulator for generating a modulating signal for fractional-N functionality, wherein the phase detector has a first input for receiving a reference signal oscillating at a reference frequency; a second input for receiving the divided signal; and the phase detector and charge-pump is configured to compare a phase of the first input and a phase of the second input, and generate a charge-pump current on and off, featuring that the cancellation system is implemented inside the modulator having an additional input defined by the changeable charge-pump current values.
    • 具有由于环路增益变化引起的相位不连续性消除系统的分数N频率合成器可以包括相位检测器,电流可变电荷泵,用于提供调谐信号的环路滤波器,控制的压控振荡器(VCO) 通过用于提供VCO输出信号的调谐信号,用于提供分频VCO信号的分频器,用于产生用于分数N功能的调制信号的调制器,其中所述相位检测器具有用于接收参考信号振荡的参考信号的第一输入 频率; 用于接收分频信号的第二输入; 并且所述相位检测器和电荷泵被配置为比较所述第一输入的相位和所述第二输入的相位,并且产生电荷泵浦电流的导通和截止,其特征在于所述抵消系统在所述调制器内部具有额外的 输入由可变电荷泵电流值定义。
    • 9. 发明专利
    • 電流感測器
    • 电流传感器
    • TW201516417A
    • 2015-05-01
    • TW103130879
    • 2014-09-05
    • 旭化成微電子股份有限公司ASAHI KASEI MICRODEVICES CORPORATION
    • 鈴木健治SUZUKI, KENJI今庄秀人IMAJYO, HIDETO長谷川秀則HASEGAWA, HIDENORI甲斐健司KAI, KENJI
    • G01R15/20G01R19/00
    • G01R15/20
    • 本發明係一種電流感測器(1),其包含:第一電流路徑(301);第一磁感測器(131b),其配置於第一電流路徑之附近;第二磁感測器(131a),其隔著第一電流路徑而配置於第一磁感測器之相反側;第二電流路徑(302);第三磁感測器(132b),其配置於第二電流路徑之附近;第四磁感測器(132a),其隔著第二電流路徑而配置於第三磁感測器之相反側;及信號處理部,其根據第一磁感測器之輸出與第二磁感測器之輸出而產生基於第一被測定電流之量之信號,並根據第三磁感測器之輸出與第四磁感測器之輸出而產生基於第二被測定電流之量之信號;且第一磁感測器與第二磁感測器配置於距第二電流路徑相等之距離,第三磁感測器與第四磁感測器配置於距第一電流路徑相等之距離。
    • 本发明系一种电流传感器(1),其包含:第一电流路径(301);第一磁传感器(131b),其配置于第一电流路径之附近;第二磁传感器(131a),其隔着第一电流路径而配置于第一磁传感器之相反侧;第二电流路径(302);第三磁传感器(132b),其配置于第二电流路径之附近;第四磁传感器(132a),其隔着第二电流路径而配置于第三磁传感器之相反侧;及信号处理部,其根据第一磁传感器之输出与第二磁传感器之输出而产生基于第一被测定电流之量之信号,并根据第三磁传感器之输出与第四磁传感器之输出而产生基于第二被测定电流之量之信号;且第一磁传感器与第二磁传感器配置于距第二电流路径相等之距离,第三磁传感器与第四磁传感器配置于距第一电流路径相等之距离。