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    • 2. 发明授权
    • DC-DC converter and control circuit thereof
    • DC-DC转换器及其控制电路
    • US08604766B2
    • 2013-12-10
    • US13692010
    • 2012-12-03
    • Kei ShiraishiTakeshi UenoTaichi OgawaTetsuro Itakura
    • Kei ShiraishiTakeshi UenoTaichi OgawaTetsuro Itakura
    • G05F1/59
    • G05F1/468H02M3/157H02M2003/1566
    • A control circuit of a DC-DC converter has a voltage difference signal generator configured to generate a digital voltage difference signal depending on a voltage difference between the output voltage and a reference voltage, a PID controller configured to generate a digital PID signal for determining the duty ratio of the pulse-width modulated signal, based on the digital voltage difference signal, a phase controller configured to generate a digital phase control signal for determining a phase of the pulse-width modulated signal, based on the digital voltage difference signal, and a PWM generator configured to generate the pulse-width modulated signal, based on the digital PID signal and the digital phase control signal.
    • DC-DC转换器的控制电路具有:电压差信号发生器,被配置为根据输出电压和参考电压之间的电压差产生数字电压差信号; PID控制器,被配置为产生数字PID信号以确定 基于数字电压差信号的脉宽调制信号的占空比;相位控制器,被配置为基于数字电压差信号产生用于确定脉宽调制信号的相位的数字相位控制信号;以及 PWM发生器,被配置为基于数字PID信号和数字相位控制信号来产生脉宽调制信号。
    • 3. 发明申请
    • DC-DC CONVERTER AND INFORMATION PROCESSING DEVICE
    • DC-DC转换器和信息处理装置
    • US20130049712A1
    • 2013-02-28
    • US13491974
    • 2012-06-08
    • Takeshi UENO
    • Takeshi UENO
    • G05F1/46
    • H02M3/1584
    • There is provided a DC-DC converter which converts an input voltage into an output voltage for supply to a load, in which an input terminal receives the input voltage, an output terminal outputs the output voltage, power stages each includes: a high side switch, a low side switch and an inductor, the control unit executes a first mode and a second mode wherein the first mode controls the high side switch and the low side switch in each of the power stages so that a ratio of an output current in each of the power stages to a load current flowing through the load becomes a set value and the second mode controls the high side switch and the low side switch in each of the power stages so that duty ratios of the high side switch and the low side switch are equalized among the power stages.
    • 提供了一个DC-DC转换器,其将输入电压转换成输出电压,以供给输入端子接收输入电压的负载,输出端子输出输出电压,功率级包括:高侧开关 低侧开关和电感器,所述控制单元执行第一模式和第二模式,其中所述第一模式控制每个所述功率级中的所述高侧开关和所述低侧开关,使得每个所述功率级中的输出电流的比率 功率级与流过负载的负载电流成为设定值,第二模式控制各功率级的高侧开关和低侧开关,使得高侧开关和低侧开关的占空比 在功率级之间相等。
    • 4. 发明申请
    • DC-DC CONVERTER CONTROL APPARATUS AND DC-DC CONVERTER
    • DC-DC转换器控制装置和DC-DC转换器
    • US20120242300A1
    • 2012-09-27
    • US13234543
    • 2011-09-16
    • Takeshi UenoAkio Kuroda
    • Takeshi UenoAkio Kuroda
    • G05F1/46
    • H02M3/156H02M2001/0022
    • A DC-DC converter control apparatus controls a DC-DC converter which has an inductor connected between an input terminal for a direct-current input voltage and an output terminal for a direct-current output voltage obtained by converting the direct-current input voltage, a capacitor connected to the inductor, and a switch configured to switch whether the direct-current input voltage is applied to the inductor. The DC-DC converter control apparatus has a subtractor configured to generate a differential voltage between the direct-current input voltage and a reference voltage, a comparator configured to generate a determining signal that indicates determination of a polarity of the differential voltage, and a delay part configured to delay the determining signal for a specific delay time.
    • DC-DC转换器控制装置控制DC-DC转换器,其具有连接在用于直流输入电压的输入端子和通过转换直流输入电压而获得的直流输出电压的输出端子之间的电感器, 连接到电感器的电容器和被配置为切换是否将直流输入电压施加到电感器的开关。 DC-DC转换器控制装置具有:减法器,被配置为产生直流输入电压和参考电压之间的差分电压;比较器,被配置为产生指示确定差分电压的极性的确定信号;以及延迟 部件被配置为延迟确定信号达到特定的延迟时间。
    • 5. 发明申请
    • WIRELESS POWER TRANSMISSION DEVICE
    • 无线电力传输设备
    • US20120235509A1
    • 2012-09-20
    • US13461097
    • 2012-05-01
    • Takeshi UENOKohei ONIZUKA
    • Takeshi UENOKohei ONIZUKA
    • H02J17/00
    • H02J50/12H02J5/005H02J7/0004H02J7/025
    • In one embodiment, a power reception device includes a load circuit, to which a first signal having a first power value is supplied from a first resonance circuit connected to a power reception coil, and a first transceiver which transmits the first power value to a power transmission device. The power transmission device includes a second resonance circuit including a plurality of inductors and capacitors to which a second signal having a second power value is input, a power transmission coil connected to the second resonance circuit, a second transceiver which receives the first power value from the first transceiver, and a first control circuit which calculates power transmission efficiency using the first power value and the second power value and adjusts at least one of inductance values of the inductors and/or at least one of capacitance values of the capacitors based on the power transmission efficiency.
    • 在一个实施例中,功率接收装置包括负载电路,从连接到受电线圈的第一谐振电路提供具有第一功率值的第一信号,以及将第一功率值发送到功率的第一收发器 传输设备。 电力传输装置包括:第二谐振电路,包括输入具有第二功率值的第二信号的多个电感器和电容器;连接到第二谐振电路的电力传输线圈;从第二谐振电路接收第一功率值的第二收发器; 第一收发器和第一控制电路,其使用第一功率值和第二功率值来计算功率传输效率,并且基于所述第一功率值和所述第二功率值调整所述电感器的电感值和/或所述电容器的电容值中的至少一个 电力传输效率。
    • 9. 发明申请
    • SAMPLE RATE CONVERTER AND RCEIVER USING THE SAME
    • 采样速率变换器和RCEIVER使用相同
    • US20090245437A1
    • 2009-10-01
    • US12369781
    • 2009-02-12
    • Masanori FURUTATakafumi YamajiTakeshi Ueno
    • Masanori FURUTATakafumi YamajiTakeshi Ueno
    • H04L27/06H03M7/00
    • H03H17/0621H03H17/0282
    • A sample rate converter includes a multiplexer to select either one of an input signal and a first feedback signal, and to obtain a selected input signal, a decimator performing decimation on an Nth-order integration signal to generate an output signal, an interpolator performing interpolation on the output signal to generate a second feedback signal, a multiplier which multiplies the second feedback signal by a coefficient to generate a multiplication signal, a subtractor which subtracts the multiplication signal from the selected input signal to generate a residual signal, an adder which adds the residual signal to a third feedback signal to sequentially generate 1st-order to Nth-order integration signals, a register circuit configured to hold the integration signals, a multiplexer to select the first feedback signal from the integration signals that the register hold, and a multiplexer to select the third feedback signal from the integration signals that the register hold.
    • 采样率转换器包括多路复用器,用于选择输入信号和第一反馈信号中的任何一个,并获得所选择的输入信号;抽取器对N次积分信号执行抽取以产生输出信号;内插器执行插值 在输出信号上产生第二反馈信号,乘法器,将第二反馈信号乘以系数以产生乘法信号;减法器,其从所选择的输入信号中减去乘法信号以产生残差信号;加法器,其将增加 剩余信号到第三反馈信号以顺序地产生1阶到N阶积分信号,配置成保持积分信号的寄存器电路,多路复用器,从寄存器保持的积分信号中选择第一反馈信号,以及 多路复用器从寄存器保持的积分信号中选择第三个反馈信号。