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61.发明申请公开(公告)号：US20190097543A1
公开(公告)日：2019-03-28
申请号：US16199692
申请日：2018-11-26
发明人： Patrick Achtzehn , Jan Korte , Jens Czichon
CPC分类号： H02M3/33584 , H02M3/158 , H02M3/1582 , H02M3/18 , H02M3/3378 , H02M7/757 , H02M2001/0025 , H02M2001/007
摘要： A bidirectional DC converter assembly includes two serially-arranged DC/DC converters. The first converter is a buck (or a buck/boost) converter to be connected to a high-voltage (HV) level of an electric vehicle. The second converter is a series resonant switching converter to be connected to a low-voltage (LV) of the vehicle. The series resonant switching converter of the second converter is formed by a DC/AC converter, a transformer, and an AC/DC converter, which are serially arranged in the stated order between the first converter and the LV level. A bidirectional peak current controller is associated with the first converter. The peak current controller is realized by a current measurement at an inductor of the first converter. The peak current controller uses the coil current value, which is modified with an offset value and thus has a constant sign, as a set point in controlling the first converter.
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公开(公告)号：US20180102811A1
公开(公告)日：2018-04-12
申请号：US15684014
申请日：2017-08-23
发明人： Hee Seung KIM , Jae Hyuk JANG , Chang Hee LEE , Jae Sun WON , Hyo Jung YOON , Gie Hyoun KWEON
IPC分类号： H04B5/00
CPC分类号： H04B5/0031 , G06K7/083 , H02M3/18 , H02M7/5387 , H04B5/0087
摘要： An information transmitter includes a transmitting coil configured to receive a coil voltage to generate a magnetic field; and a signal generator configured to receive a direct current (DC) voltage and operating switches to apply the coil voltage to the transmitting coil, for a first time constant in a first current path, wherein the coil voltage includes a first value, and for a second time constant in a second current path, wherein the coil voltage includes a second value smaller than the first value, and wherein the first time constant and second time constant are different from each other.
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63.发明申请公开(公告)号：US20170279351A1
公开(公告)日：2017-09-28
申请号：US15506738
申请日：2015-08-26
发明人： Shuza BINZAID , Amar S. BHALLA , Ryan GUO , MD Qumrul HASAN
摘要： Disclosed herein is a non-Inductive voltage boost-converter (NVBC) for micro-power energy harvesting systems for energy storage and delivery applications. Current devices deliver a wide-range of micro-power having only up to 0.8V peak-voltage, but nominally 0.45V in lab test conditions. This voltage is not adequate in charging storage cells such as rechargeable batteries and also driving electronic circuits. Technology is in demand where a boost-converter must operate at MOS sub-threshold voltage (Sub-VTH) limits. Disclosed herein is a novel NVBC device that has eliminated the need of an inductor coil and associated high-speed switching circuits; thus achieving higher efficiency. The disclosed invention applies a simple self-synchronizing technique to adapt the NVBC automatically to the low-frequency energy signal of a pyroelectric device. A novel NVBC is presented for stabilized output of NVBC (S-NVBC). In an embodiment, the S-NVBC achieves an efficiency of 86%.
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公开(公告)号：US20160204703A1
公开(公告)日：2016-07-14
申请号：US14916023
申请日：2014-09-02
IPC分类号： H02M3/158
摘要： An operation mode selection unit selects an operation mode of a power converter and generates a mode selection signal indicating the result of selection, in accordance with a load condition and a power supply condition. An operation mode switching control unit generates a mode control signal designating an operation mode of the power converter. When the operation mode currently selected by the mode control signal is different from an operation mode indicated by the mode selection signal, the operation mode switching control unit adjusts a power distribution ratio between a plurality of DC power supplies or an output voltage on an electric power line so as not to change abruptly, and then permits a transition of operation mode.
摘要翻译： 操作模式选择单元根据负载条件和电源条件选择功率转换器的操作模式并产生指示选择结果的模式选择信号。 操作模式切换控制单元产生指定功率转换器的操作模式的模式控制信号。 当由模式控制信号当前选择的操作模式与由模式选择信号指示的操作模式不同时，操作模式切换控制单元调整多个直流电源之间的功率分配比或电力上的输出电压 线不突然变化，然后允许转换操作模式。
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公开(公告)号：US20150205319A1
公开(公告)日：2015-07-23
申请号：US14166904
申请日：2014-01-29
发明人： Guillaume De Cremoux
CPC分类号： G05F3/262 , G05F3/30 , H02M3/1588 , H02M3/18 , H03K3/0231 , H03K3/353
摘要： An apparatus and method for a voltage reference circuit and oscillator which operates for a low voltage power supply. The voltage reference circuit is used in an “always on” mode of operation, and have low power usage. The operational range is 1.1V to 3.6 V, and must allow for sub-bandgap voltage conditions as well as voltage tolerant for higher voltages. The circuit minimizes the number of current branches by avoiding complexity of operational amplifiers and comparator networks. The circuit avoids stacking of more than 2 devices to allow for low voltage operation. The voltage reference circuit between a power supply node and a ground node and configured for generating a reference voltage comprises of a current mirror function providing matching and sourcing network branches, a voltage generator network sourced from a current mirror providing a base-emitter voltage, a current drive function network electrically sourced from a current mirror function, and an output network function sourced from a current mirror providing a voltage reference output voltage. An oscillator circuit between a power supply node and a ground node and configured for generating an oscillating signal comprises of a current mirror function providing matching and sourcing network branches, a current drive function network electrically sourced from said current mirror function, an output network function sourced from said current mirror providing a capacitors, current sources, a capacitor providing charge storage, and output network function, and, a feedback loop network providing reset function.
摘要翻译： 一种用于低电压电源的电压参考电路和振荡器的装置和方法。 电压基准电路采用“始终开启”工作模式，功耗低。 工作范围为1.1V至3.6V，并且必须允许子带隙电压条件以及更高电压的电压容限。 该电路通过避免运算放大器和比较器网络的复杂性来最小化电流分支的数量。 该电路避免了多于2个器件的堆叠以允许低电压操作。 电源节点和接地节点之间的电压参考电路，用于产生参考电压包括提供匹配和采购网络分支的电流镜功能，源自提供基极 - 发射极电压的电流镜的电压发生器网络， 电流驱动功能网络电流来自电流镜功能，以及源自电流镜的输出网络功能，提供电压参考输出电压。 电源节点和接地节点之间的振荡器电路，用于产生振荡信号，包括提供匹配和采样网络分支的电流镜功能，电流源自所述电流镜功能的电流驱动功能网络，源自输出网络功能 从所述电流镜提供电容器，电流源，提供电荷存储的电容器和输出网络功能，以及提供复位功能的反馈环路网络。
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66.发明申请公开(公告)号：US20150061071A1
公开(公告)日：2015-03-05
申请号：US14014827
申请日：2013-08-30
IPC分类号： H01L29/94
CPC分类号： H01L29/94 , H01L27/0805 , H01L27/0811 , H02M3/00 , H02M3/18
摘要： A MOS capacitor with improved linearity is disclosed. In an exemplary embodiment, an apparatus includes a main branch comprising a first signal path having a first capacitor pair connected in series with reversed polarities and a second signal path having a second capacitor pair connected in series with reversed polarities, the first and second signal paths connected in parallel. The apparatus also includes an auxiliary branch comprising at least one signal path having at least one capacitor pair connected in series with reversed polarities and connected in parallel with the main branch. In an exemplary embodiment, the capacitors are MOS capacitors.
摘要翻译： 公开了具有改善的线性度的MOS电容器。 在示例性实施例中，一种装置包括主分支，该主分支包括具有与反向极性串联连接的第一电容器对的第一信号路径和具有与反向极性串联连接的第二电容器对的第二信号路径，第一和第二信号路径 并联连接 该装置还包括辅助支路，该辅助支路包括至少一个信号路径，该至少一个信号路径具有与反向极性串联连接的至少一个电容器对并与主支路并联连接。 在示例性实施例中，电容器是MOS电容器。
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公开(公告)号：US20140375378A1
公开(公告)日：2014-12-25
申请号：US13924875
申请日：2013-06-24
发明人： Behdad Youssefi
IPC分类号： H02M3/18
CPC分类号： H02M3/18 , H02M3/073 , H02M2003/076
摘要： A charge pump system uses a helper pump to use in generating a boosted clock signal to use for the stages capacitor of a charge pump and also for the gate clock of the stage. This can be particularly useful in applications with lower supply levels, where a the helper pump can be used to provide an amplitude higher than the supply level, that can then be added to the supply level for the boosted clock signal and then added again to the supply level for the gate clock. Further advantages can be obtained by using the helper or auxiliary pump as an input to an optimized inverter circuit that receives an input clock and has an output that initially rises to the supply level than subsequently to the auxiliary pump's level.
摘要翻译： 电荷泵系统使用辅助泵来产生用于电荷泵的级电容器以及级的栅极时钟的升压时钟信号。 这可以在具有较低电源电平的应用中特别有用，其中辅助泵可用于提供高于电源电平的幅度，然后可以将其加到升压时钟信号的电源电平，然后再次添加到 门时钟的供电电平。 通过使用辅助泵或辅助泵作为接收输入时钟的优化逆变器电路的输入并且具有最初上升到供应水平的输出，而不是辅助泵的水平以后，可以获得进一步的优点。
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公开(公告)号：US20140307493A1
公开(公告)日：2014-10-16
申请号：US14354165
申请日：2012-10-23
申请人： ST-Ericsson SA
发明人： Laurent Chevalier
IPC分类号： H02M3/07
CPC分类号： H02M3/18 , G05F3/00 , H02M3/07 , H02M2001/0054 , Y02B70/1491
摘要： There is described a charge pump circuit (1) circuit comprising an input terminal, an output terminal (5) connected to an intermediate node (Ni), a ground terminal (4), a first fly capacitor module (21) with a first fly capacitor (Cfly1) having a first pin (211) and a second pin (212) and connected to the intermediate node (Ni); and a second fly capacitor module (22) with a first fly capacitor (Cfly2) having a first pin (221) and a second pin (222) and connected to the intermediate node (Ni); wherein each being adapted to successively charge and discharge a the first fly capacitor and the second fly capacitor, respectively, wherein the second pin (212) of the first fly capacitor module (21) is connected to the first pin (221) of the second fly capacitor module (22) by a direct connection.
摘要翻译： 描述了一种电荷泵电路（1），包括输入端子，连接到中间节点（Ni）的输出端子（5），接地端子（4），具有第一飞行的第一飞行电容器模块（21） 电容器（Cfly1）具有第一引脚（211）和第二引脚（212）并连接到中间节点（Ni）; 和具有第一引脚（221）和第二引脚（222）并连接到中间节点（Ni）的第一飞电容器（Cfly2）的第二飞电容器模块（22）; 其中每个分别适于连续地对第一飞电容器和第二飞电容器进行充电和放电，其中第一飞电容器模块（21）的第二引脚（212）连接到第二飞电电容器的第二引脚（221） 飞电容器模块（22）通过直接连接。
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公开(公告)号：US20060176718A1
公开(公告)日：2006-08-10
申请号：US11396625
申请日：2006-04-04
申请人： Kohzoh Itoh
发明人： Kohzoh Itoh
CPC分类号： H02M3/07 , H02M3/18 , H02M2003/078
摘要： A charge pump circuit is provided for generating a voltage (1+1/n) times as high as a supply voltage. The charge pump circuit eliminates the need for diodes for preventing a current from flowing back from a high potential side of capacitors to prevent a reduction in the voltage due to a forward voltage, and reduces a reactive current and latch-up when the charge pump circuit is integrated into a single IC chip. The charge pump circuit includes a fourth switching element having a substrate gate connected to a drain for preventing a current from flowing back to an input terminal from a high potential side of fly back capacitors connected in series, and a second switching element having a substrate gate connected to a drain for preventing a current from flowing back from a high potential side of a catch-up capacitor to the fly back capacitors connected in series.
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公开(公告)号：US20040136212A1
公开(公告)日：2004-07-15
申请号：US10716560
申请日：2003-11-20
发明人： Hirofumi Abe , Hirokazu Itakura , Hiroyuki Ban , Shoichi Okuda , Kingo Ota
IPC分类号： H02M003/18
摘要： In a voltage booster, a voltage detection circuit detects a battery voltage as an input voltage. If the input voltage is lower than a threshold level, an oscillation circuit outputs a gate signal having a relatively high frequency to increase the driving performance of a driving circuit. If the input voltage is higher than the threshold level, the frequency of the gate signal is lowered so as to prevent the driving performance of the driving circuit from rising to an excessively high value. As a result, a predetermined boosted voltage can be obtained regardless of variations in input voltage without using a filter for eliminating noise.
摘要翻译： 在升压器中，电压检测电路检测电池电压作为输入电压。 如果输入电压低于阈值电平，则振荡电路输出具有较高频率的门信号，以提高驱动电路的驱动性能。 如果输入电压高于阈值电平，则门信号的频率降低，以防止驱动电路的驱动性能上升到过高的值。 结果，无需使用用于消除噪声的滤波器，就可以获得预定的升压电压而不管输入电压的变化。
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