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    • 1. 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。
    • 2. 发明申请
    • WIRELESS POWER TRANSMITTER
    • 无线发射机
    • US20130002034A1
    • 2013-01-03
    • US13342381
    • 2012-01-03
    • Kohei OnizukaTakeshi Ueno
    • Kohei OnizukaTakeshi Ueno
    • H02J17/00
    • H02J50/12H02J5/005H02J17/00H02J50/80H04B5/00
    • According to one embodiment, a wireless power transmitter wirelessly transmits power to a power receiving apparatus which includes a first resonance circuit and a load circuit. The first resonance circuit includes a power receiving coil and a first capacitor. The wireless power transmitter comprises a second resonance circuit that includes a power transmission coil and a second capacitor and transmits the signal generated by a power supply to the power receiving apparatus, a measuring unit that measures a signal reflection coefficient, and a controller. The controller detects a value of an oscillation frequency of the power supply making the signal reflection coefficient smaller than or equal to a threshold value, calculates an electromagnetic coupling coefficient between the power transmission coil and the power receiving coil, and controls one of the oscillation frequency and a capacitance value of the second capacitor based on the electromagnetic coupling coefficient.
    • 根据一个实施例,无线电力发射机将电力无线地传输到包括第一谐振电路和负载电路的电力接收设备。 第一谐振电路包括受电线圈和第一电容器。 无线电力发射机包括第二谐振电路,其包括电力传输线圈和第二电容器,并且将由电源产生的信号发送到电力接收装置,测量信号反射系数的测量单元和控制器。 控制器检测使信号反射系数小于或等于阈值的电源的振荡频率的值,计算发送线圈和受电线圈之间的电磁耦合系数,并且控制振荡频率之一 以及基于电磁耦合系数的第二电容器的电容值。
    • 3. 发明申请
    • DC TO DC CONVERTER
    • 直流到直流转换器
    • US20110235367A1
    • 2011-09-29
    • US12878271
    • 2010-09-09
    • Takeshi UenoTetsuro Itakura
    • Takeshi UenoTetsuro Itakura
    • H02M3/24
    • H02M3/1563
    • A DC to DC converter includes an input terminal, an output terminal, first and second switches, an inductor, a smoothing unit, a first impedance element, a first resistor element, an operational amplifier and a control unit. The first switch is connected to the input terminal. The second switch is connected to the first switch and a ground terminal. The inductor is connected to the first switch and the output terminal. The smoothing unit is connected to the inductor and the ground terminal. The first impedance element is connected to the smoothing unit. The first resistor element is connected in series with the first impedance element. The operational amplifier is connected to the first impedance element. Reference voltage is added to the operational amplifier. The control unit controls the first and second switches according to a control signal outputted from the operational amplifier.
    • DC-DC转换器包括输入端子,输出端子,第一和第二开关,电感器,平滑单元,第一阻抗元件,第一电阻元件,运算放大器和控制单元。 第一个开关连接到输入端。 第二开关连接到第一开关和接地端子。 电感器连接到第一开关和输出端子。 平滑单元连接到电感器和接地端子。 第一阻抗元件连接到平滑单元。 第一电阻元件与第一阻抗元件串联连接。 运算放大器连接到第一阻抗元件。 参考电压加到运算放大器上。 控制单元根据从运算放大器输出的控制信号来控制第一和第二开关。
    • 4. 发明授权
    • Comparator and analog-to-digital converter using the same
    • 比较器和模数转换器使用相同
    • US07679428B2
    • 2010-03-16
    • US12175209
    • 2008-07-17
    • Mai NozawaDaisuke KuroseTakeshi UenoTetsuro Itakura
    • Mai NozawaDaisuke KuroseTakeshi UenoTetsuro Itakura
    • H03K5/22
    • H03K5/2481H03K5/249
    • A comparator includes a first inverter which is inserted between a power source terminal and one end of a first variable resistor, includes a first FinFET provided with a first gate terminal for receiving a positive phase output signal, and a second gate terminal for receiving a clock signal changing between a first level and a second level, inverts the positive phase output signal, and outputs a negative phase output signal, and a second inverter which is inserted between the power source terminal and one end of a second variable resistor, includes a second FinFET provided with a third gate terminal for receiving the negative phase output signal, a fourth gate terminal for receiving the clock signal, and the same polarity as the first FinFET, inverts the negative phase output signal, and outputs the positive phase output signal.
    • 比较器包括插入在电源端子和第一可变电阻器的一端之间的第一反相器,包括:第一FinFET,其具有用于接收正相输出信号的第一栅极端子和用于接收时钟的第二栅极端子 信号在第一电平和第二电平之间变化,使正相输出信号反相,并输出负相输出信号,并且插入在电源端和第二可变电阻的一端之间的第二反相器包括第二 FinFET具有用于接收负相输出信号的第三栅极端子,用于接收时钟信号的第四栅极端子和与第一FinFET相同的极性,反相负相输出信号,并输出正相输出信号。
    • 5. 发明申请
    • SAMPLE RATE CONVERTER AND RECEIVER USING THE SAME
    • 采样速率变换器和接收器
    • US20090245429A1
    • 2009-10-01
    • US12399239
    • 2009-03-06
    • Masanori FURUTATakafumi YamajiTakeshi Ueno
    • Masanori FURUTATakafumi YamajiTakeshi Ueno
    • H04L27/06H04L7/00
    • H03H17/0621H03H17/0664H03H2218/04H03H2218/06
    • A sample rate converter includes a multiplexer which multiplexes input signals, an interpolator which interpolates a multiplexed output signal to generate a first feedback signal, a multiplier which multiplies the first feedback signal by a coefficient, a subtracter which subtracts the multiplied signal from the multiplexed input signal, an adder which adds the residual signal and a second feedback signal to sequentially generate integrated signals corresponding to the input signals, respectively, a register circuit configured to individually hold integrated signals, a multiplexer which multiplexes the integrated signals from the register circuit to generate the second feedback signal, a multiplexer which multiplexes the integrated signals from the register circuit to generate a decimation target signal, a decimator which subjects the decimation target signal to decimation to generate the multiplexed output signal, and a discrimination circuit configured to discriminate the multiplexed output signal to generate output signals.
    • 采样率转换器包括多路复用输入信号的多路复用器,内插多路复用输出信号以产生第一反馈信号的内插器,将第一反馈信号乘以系数的乘法器,从多路复用输入中减去相乘的信号的减法器 信号,加法器,其分别将残留信号和第二反馈信号分别顺序地产生与输入信号相对应的积分信号;配置为单独保持积分信号的寄存器电路;复用器,其将来自寄存器电路的积分信号多路复用以产生 第二反馈信号,多路复用器,其对来自寄存器电路的积分信号进行多路复用以产生抽取目标信号;抽取目标信号抽取产生复用输出信号的抽取器;以及鉴别电路, 输出信号产生输出信号。