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1. 发明申请

US20120306563A1 SWITCHING CIRCUIT 有权
标题翻译：切换电路
公开(公告)号：US20120306563A1
公开(公告)日：2012-12-06
申请号：US13490101
申请日：2012-06-06
申请人： Kazuhiro FUJIKAWA , Nobuo Shiga , Takashi Ohira , Kazuyuki Wada , Kazuya Ishioka , Hiroshi Ishioka
发明人： Kazuhiro FUJIKAWA , Nobuo Shiga , Takashi Ohira , Kazuyuki Wada , Kazuya Ishioka , Hiroshi Ishioka
IPC分类号： H03K17/687
CPC分类号： H03K17/04123 , H03K2217/0036 , H03K2217/0045 , H03K2217/009
摘要： A switching circuit according to one embodiment is a switching circuit including at least one semiconductor switch element having an input, output, and a common terminals, a pulse-like signal being applied between the input and common terminals to switch a current between the output and common terminals. The switching circuit further includes a capacitance suppression element section connected at least one of between the input and output terminals, between the input terminal common terminals, and between the output and common terminals. The capacitance suppression element section reduces a parasitic capacitance between the terminals of the semiconductor switch element where the capacitance suppression element section is connected to less than that obtained when the capacitance suppression element section is not connected at a frequency N times (N is an integer of 1 or more) as high as a clock frequency of the pulse-like signal.
摘要翻译：根据一个实施例的开关电路是包括具有输入，输出和公共端子的至少一个半导体开关元件的开关电路，脉冲状信号被施加在输入端和公共端子之间以切换输出和公共终端开关电路还包括电容抑制元件部分，其连接在输入和输出端子之间，输入端子公共端子之间以及输出端子和公共端子之间的至少一个。电容抑制元件部分减小了电容抑制元件部分连接的半导体开关元件的端子之间的寄生电容小于当电容抑制元件部分未以N倍的频率连接时获得的寄生电容（N为 1或更高）与脉冲状信号的时钟频率一样高。

2. 发明申请

US20120306288A1 SWITCHING CIRCUIT 有权
标题翻译：切换电路
公开(公告)号：US20120306288A1
公开(公告)日：2012-12-06
申请号：US13490240
申请日：2012-06-06
申请人： Kazuhiro Fujikawa , Nobuo Shiga , Takashi Ohira , Kazuyuki Wada , Kazuya Ishioka , Hiroshi Ishioka
发明人： Kazuhiro Fujikawa , Nobuo Shiga , Takashi Ohira , Kazuyuki Wada , Kazuya Ishioka , Hiroshi Ishioka
IPC分类号： H01H47/00
CPC分类号： H03K17/04123 , H03K2217/0036 , H03K2217/0045 , Y10T307/747
摘要： A switching circuit according to one embodiment includes first to fourth semiconductor switch elements. A pulse-like signal is applied to each input terminal of the switch elements such that when the first and fourth switch elements are in an ON (OFF) state, the remaining switch elements are in an OFF (ON) state. The switching circuit includes first and second capacitance elements. The first capacitance elements connected between an output terminal of the second semiconductor switch element and the second capacitance elements connected between an input terminal of the second semiconductor switch element and an output terminal of the fourth semiconductor switch element has a capacitance to reduce a parasitic capacitance between the input and output terminals of each of the fourth and second switch elements at a frequency N times (N is an integer of 1 or more) as high as a clock frequency of the pulse-like signal.
摘要翻译：根据一个实施例的开关电路包括第一至第四半导体开关元件。脉冲状信号被施加到开关元件的每个输入端子，使得当第一和第四开关元件处于导通（OFF）状态时，剩余的开关元件处于断开（ON）状态。开关电路包括第一和第二电容元件。连接在第二半导体开关元件的输出端子和连接在第二半导体开关元件的输入端子和第四半导体开关元件的输出端子之间的第二电容元件之间的第一电容元件具有电容以减小第二半导体开关元件的输出端之间的寄生电容以与脉冲状信号的时钟频率相同的频率N倍（N为1以上的整数）的第四开关元件和第二开关元件的输入输出端子。

3. 发明申请

US20120326774A1 SWITCHING CIRCUIT 有权
标题翻译：切换电路
公开(公告)号：US20120326774A1
公开(公告)日：2012-12-27
申请号：US13535001
申请日：2012-06-27
申请人： Satoshi HATSUKAWA , Nobuo SHIGA , Kazuhiro FUJIKAWA , Takashi OHIRA , Kazuyuki WADA , Tuya WUREN , Kazuya ISHIOKA , Kazushi SAWADA , Hiroshi Ishioka
发明人： Satoshi HATSUKAWA , Nobuo SHIGA , Kazuhiro FUJIKAWA , Takashi OHIRA , Kazuyuki WADA , Tuya WUREN , Kazuya ISHIOKA , Kazushi SAWADA , Hiroshi Ishioka
IPC分类号： H03H11/04
CPC分类号： H03K17/162 , H03F3/2171 , H03F3/2176 , H03F2200/507 , H03H7/0115 , H03H7/1708 , H03H7/1725 , H03H7/1758 , H03H7/1766 , H03H7/1775 , H03H7/1783 , H03H7/1791 , H03K2217/0036 , H03K2217/009
摘要： A switching circuit according to one embodiment includes: a switching element that has a first terminal and a second terminal, and is driven by a pulse signal to switch a conduction state between the first and second terminals; a power source section that supplies a voltage to the first terminal; a load circuit that is connected in parallel with the power source section; a passive circuit section that is connected between a connection point between the power source section and the load circuit, and the first terminal, and suppresses a current flowing from the connection point to the switching element at a frequency N times (N is an integer of 1 or more) as high as a clock frequency of the pulse signal; and a resonant circuit section that is connected between the passive circuit section and the connection point, and resonates at the frequency of N times.
摘要翻译：根据一个实施例的开关电路包括：开关元件，其具有第一端子和第二端子，并且由脉冲信号驱动以在第一和第二端子之间切换导通状态; 电源部，其向所述第一端子供给电压; 与电源部并联连接的负载电路; 连接在电源部和负载电路之间的连接点与第一端子之间的无源电路部，并且抑制从连接点向开关元件流过N次的电流（N为整数 1或更高）与脉冲信号的时钟频率一样高; 以及连接在无源电路部分和连接点之间并以N次频率谐振的谐振电路部分。

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