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公开(公告)号：US11381185B2
公开(公告)日：2022-07-05
申请号：US16299627
申请日：2019-03-12
IPC分类号： H02P9/00 , H02J7/00 , H02M3/158 , H02J7/34 , H02M1/00 , H02N2/18 , G05F1/67 , G01R21/06 , G05F5/00
摘要： A power control circuit includes a converter, a signal generation circuit, and control circuitry. The converter includes a switching circuit. The converter transforms an output voltage from a power generator. The signal generation circuit operates the switching circuit of the converter. The control circuitry changes an operation of the switching circuit.
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公开(公告)号：US10734994B2
公开(公告)日：2020-08-04
申请号：US16286645
申请日：2019-02-27
发明人： Takeshi Ueno
IPC分类号： H03K17/687
摘要： A gate control circuit includes: a transition time detection circuit configured to detect a transition time of a drain voltage of a switching transistor that is turned ON or OFF by a gate voltage corresponding to a first pulse signal and a second pulse signal; an error detection circuit configured to output an error voltage representing a difference between the transition time and a target transition time being predetermined; and a transition time control circuit configured to generate the second pulse signal on the basis of the error voltage and the first pulse signal corresponding to an input signal that instructs ON or OFF of the switching transistor.
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公开(公告)号：US09917516B2
公开(公告)日：2018-03-13
申请号：US15252838
申请日：2016-08-31
CPC分类号： H02M3/158 , H02M2001/0022 , H02M2001/0054 , Y02B70/1491
摘要： A DC-DC converter including an input, an output, a conversion circuit, and a switch control circuit. The input inputs input voltage. The output outputs output voltage. The conversion circuit a plurality of semiconductor switches, and converts the input voltage to the output voltage by switching operation of one or more semiconductor switches of the plurality of semiconductor switches. The switch control circuit selects one or more semiconductor switches performing the switching operation from the plurality of semiconductor switches based on the input voltage and a predetermined lookup table, and controls the switching operation of the one or more semiconductor switches.
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公开(公告)号：US09912235B2
公开(公告)日：2018-03-06
申请号：US15257312
申请日：2016-09-06
CPC分类号： H02M3/156 , H02M1/36 , H02M3/07 , H02M2001/0006 , H02M2001/0025 , H03K3/02337 , H03K5/2481
摘要： A boost converter includes an input, an output, a startup circuit, a first switch, a comparator circuit, a switching circuit, a control circuit, a converter circuit, and a switch control circuit. The startup circuit boosts an input voltage up to a first output voltage. The comparator circuit outputs a first signal corresponding to the difference between the output voltage and a first reference voltage. The switching circuit outputs a second voltage based on the first signal. The control circuit outputs a second signal corresponding to the difference between the output voltage and a second reference voltage. The converter circuit boosts the input voltage based on the second signal, and outputs the output voltage. The switch control circuit generates a third signal based on the second signal, and outputs the third signal to the first switch.
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公开(公告)号：US09559582B2
公开(公告)日：2017-01-31
申请号：US14926239
申请日：2015-10-29
发明人： Taichi Ogawa , Takeshi Ueno , Tetsuro Itakura , Takayuki Miyazaki
CPC分类号： H02M3/04 , H02M3/156 , H02M2001/0032 , H02M2001/0041 , H03K17/082 , H03K17/30 , H03K2217/0036 , Y02B70/16
摘要： According to an embodiment, a switching power supply circuit includes a comparison circuit and an operation control circuit. The comparison circuit operates intermittently in response to an operation control signal. The comparison circuit compares a feedback voltage based on the output voltage with a reference voltage to generate a comparison result signal representing a result of comparison. The operation control circuit generates the operation control signal based on the clock signal and the comparison result signal. The operation control circuit generates an operation control signal synchronous with the clock signal, if the comparison result signal is at the first level.
摘要翻译： 根据实施例，开关电源电路包括比较电路和运算控制电路。 比较电路响应于操作控制信号间歇地工作。 比较电路将基于输出电压的反馈电压与参考电压进行比较，以产生表示比较结果的比较结果信号。 运算控制电路基于时钟信号和比较结果信号生成运算控制信号。 如果比较结果信号处于第一级，则操作控制电路产生与时钟信号同步的操作控制信号。
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公开(公告)号：US09236798B2
公开(公告)日：2016-01-12
申请号：US14199540
申请日：2014-03-06
发明人： Takeshi Ueno
CPC分类号： H02M3/156 , H02M2003/1566
摘要： A DC-DC converter control circuit has an inductor configured to be interposed between a first node which is set to a first direct current voltage or a second direct current voltage and a second node which outputs an output voltage at a predetermined direct current voltage level, an error signal generator configured to generate an error signal depending on a voltage difference between a reference voltage and a voltage correlating with the output voltage, a ripple extractor configured to extract and output ripple components contained in the voltage of the first node, a single-ended signal generator configured to generate a single-ended signal based on the error signal and an output signal from the ripple extractor, and a switch drive unit configured to drive and control, based on the single-ended signal, a switch circuit which sets the first node to the first direct current voltage or the second direct current voltage.
摘要翻译： DC-DC转换器控制电路具有被配置为插入设置在第一直流电压或第二直流电压的第一节点和输出预定直流电压电平的输出电压的第二节点之间的电感器， 误差信号发生器，被配置为根据参考电压和与输出电压相关的电压之间的电压差产生误差信号;纹波提取器，被配置为提取和输出包含在第一节点的电压中的纹波分量; 其被配置为基于所述误差信号和来自所述纹波提取器的输出信号产生单端信号，以及开关驱动单元，被配置为基于所述单端信号来驱动和控制开关电路，所述开关电路将 第一节点到第一直流电压或第二直流电压。
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公开(公告)号：US10461236B2
公开(公告)日：2019-10-29
申请号：US15063809
申请日：2016-03-08
发明人： Takeshi Ueno , Taichi Ogawa
摘要： According to an embodiment, a thermoelectric generator includes a thermoelectric element and a DC to DC converter. The thermoelectric element converts heat energy into electric energy. The DC to DC converter increases an input voltage applied by the thermoelectric element. The input voltage is higher than a voltage which is half an open voltage of the thermoelectric element.
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公开(公告)号：US20170070138A1
公开(公告)日：2017-03-09
申请号：US15257312
申请日：2016-09-06
CPC分类号： H02M3/156 , H02M1/36 , H02M3/07 , H02M2001/0006 , H02M2001/0025 , H03K3/02337 , H03K5/2481
摘要： A boost converter includes an input, an output, a startup circuit, a first switch, a comparator circuit, a switching circuit, a control circuit, a converter circuit, and a switch control circuit. The startup circuit boosts an input voltage up to a first output voltage. The comparator circuit outputs a first signal corresponding to the difference between the output voltage and a first reference voltage. The switching circuit outputs a second voltage based on the first signal. The control circuit outputs a second signal corresponding to the difference between the output voltage and a second reference voltage. The converter circuit boosts the input voltage based on the second signal, and outputs the output voltage. The switch control circuit generates a third signal based on the second signal, and outputs the third signal to the first switch.
摘要翻译： 升压转换器包括输入，输出，启动电路，第一开关，比较器电路，开关电路，控制电路，转换器电路和开关控制电路。 启动电路将输入电压提升到第一个输出电压。 比较器电路输出对应于输出电压和第一参考电压之间的差的第一信号。 开关电路基于第一信号输出第二电压。 控制电路输出对应于输出电压和第二参考电压之间的差的第二信号。 转换器电路基于第二信号提高输入电压，并输出输出电压。 开关控制电路基于第二信号产生第三信号，并将第三信号输出到第一开关。
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公开(公告)号：US09256241B2
公开(公告)日：2016-02-09
申请号：US14488555
申请日：2014-09-17
发明人： Taichi Ogawa , Takeshi Ueno , Shoji Ootaka , Tetsuro Itakura , Takayuki Miyazaki
摘要： There is provided a reference voltage generating apparatus including: a reference voltage source, a voltage retaining circuit, a switch and a controller. The reference voltage source generates a reference voltage. The voltage retaining circuit includes a first element circuit and a second element circuit, and the voltage retaining circuit outputs a voltage of a connection node between a first terminal of the first element circuit and a second terminal of the second element circuit. The switch is connected between the connection node and the reference voltage source. The controller controls the reference voltage source and the switch. The first element circuit includes at least a resistance component and the first element circuit is supplied with a first voltage at a third terminal and the second element circuit includes a resistance component and a capacity component and the second element circuit is supplied with a second voltage at a fourth terminal.
摘要翻译： 提供了一种参考电压产生装置，包括：参考电压源，电压保持电路，开关和控制器。 参考电压源产生参考电压。 电压保持电路包括第一元件电路和第二元件电路，并且电压保持电路在第一元件电路的第一端子和第二元件电路的第二端子之间输出连接节点的电压。 开关连接在连接节点和参考电压源之间。 控制器控制参考电压源和开关。 第一元件电路至少包括电阻分量，并且第一元件电路在第三端子处被提供有第一电压，并且第二元件电路包括电阻分量和电容分量，并且第二元件电路被提供有第二电压 第四个终端。
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公开(公告)号：US09184658B2
公开(公告)日：2015-11-10
申请号：US13909545
申请日：2013-06-04
发明人： Takeshi Ueno , Tetsuro Itakura
CPC分类号： H02M3/1582 , H02M3/1563 , H02M3/1588 , Y02B70/1466
摘要： A DC-DC converter converts an input voltage into an output voltage and includes an input terminal, an output terminal, a power stage, a switch driving circuit, a charge pump, and a capacitor. The power stage includes a high-side switch, a low-side switch and an inductor. The switch driving circuit generates a high-side switch driving signal and a low-side switch driving signal. The charge pump generates a first polarity current according to the high-side switch driving signal, and generates a second polarity current having an opposite polarity to the first polarity current according to the low-side switch driving signal. The capacitor generates a first voltage by integrating the first and second polarity currents generated by the charge pump. The switch driving circuit generates the high-side switch driving signal and the low-side switch driving signal according to a difference between the first voltage and a reference voltage.
摘要翻译： DC-DC转换器将输入电压转换为输出电压，并且包括输入端子，输出端子，功率级，开关驱动电路，电荷泵和电容器。 功率级包括高边开关，低边开关和电感。 开关驱动电路产生高侧开关驱动信号和低侧开关驱动信号。 电荷泵根据高侧开关驱动信号产生第一极性电流，并根据低侧开关驱动信号产生与第一极性电流相反的极性的第二极性电流。 电容器通过对由电荷泵产生的第一和第二极性电流进行积分来产生第一电压。 开关驱动电路根据第一电压和参考电压之间的差产生高侧开关驱动信号和低侧开关驱动信号。
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