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公开(公告)号：US09484911B2
公开(公告)日：2016-11-01
申请号：US14631347
申请日：2015-02-25
CPC分类号： H03K17/26 , H03K17/18 , H03K19/00315 , H03K19/00361
摘要： A back-power prevention circuit is provided that protects a buffer transistor from back-power during a back-power condition by charging a signal lead coupled to a gate of the buffer transistor to a pad voltage and by charging a body of the buffer transistor to the pad voltage.
摘要翻译： 提供了一种后置功率防止电路，其通过将耦合到缓冲晶体管的栅极的信号引线充电到焊盘电压并且通过将缓冲晶体管的主体充电到基板来保护缓冲晶体管免受后功率状态下的反向功率 焊盘电压。
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公开(公告)号：US08488289B2
公开(公告)日：2013-07-16
申请号：US11780858
申请日：2007-07-20
申请人： Vincent Thiery
发明人： Vincent Thiery
IPC分类号： H02H9/02
CPC分类号： H03K17/0822 , H03K17/26
摘要： An intelligent power switch (IPS) circuit providing current protection for a power switch, a gate terminal of the power switch being controlled by a first control signal generated by a gate driver. The IPS circuit includes a first circuit to measure a current in the power switch, determine a first difference between a first voltage and a first reference voltage, and reduce the first control signal if the first difference exceeds a first predetermined limit; and a second circuit to measure the current in the power switch and determine a second difference between the first voltage and a second reference voltage, wherein if the second difference exceeds a second predetermined limit the first control signal is set to turn OFF the power switch.
摘要翻译： 智能电源开关（IPS）电路为电源开关提供电流保护，电源开关的栅极端子由栅极驱动器产生的第一控制信号控制。 IPS电路包括测量电源开关中的电流的第一电路，确定第一电压和第一参考电压之间的第一差值，如果第一差异超过第一预定极限则减小第一控制信号; 以及第二电路，用于测量电力开关中的电流并确定第一电压和第二参考电压之间的第二差值，其中如果第二差异超过第二预定限度，则将第一控制信号设置为关断电源开关。
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公开(公告)号：US07595667B2
公开(公告)日：2009-09-29
申请号：US11554158
申请日：2006-10-30
申请人： Xiaoguang Liang
发明人： Xiaoguang Liang
IPC分类号： H03B1/00
CPC分类号： H03K17/26 , H03K5/1252 , H03K5/1534
摘要： A drive circuit has a level shift circuit which outputs level-shifted on and off signals each for controlling a power semiconductor element in an on or off state, a first RS flip flop which is supplied with the on signal through a setting input terminal and supplied with the off signal through a resetting input terminal, and which outputs a drive signal to the power semiconductor element, and a logic filter circuit which is provided between the level shift circuit and the first RS flip flop, and which blocks transmission of the on and off signals during the time period from a time at which both the on and off signals become a first logic to a time at which both the on and off signal become a second logic.
摘要翻译： 驱动电路具有电平移位电路，其输出用于控制功率半导体元件处于导通或截止状态的电平移位的导通和截止信号;第一RS触发器，其通过设置输入端子被提供有接通信号并被提供 通过复位输入端断开信号，并向驱动信号输出功率半导体元件;以及逻辑滤波电路，其设置在电平移位电路和第一RS触发器之间， 在从接通和关闭信号变为第一逻辑的时间到开启和关闭信号都变为第二逻辑的时间的时间段期间的关闭信号。
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公开(公告)号：US3939384A
公开(公告)日：1976-02-17
申请号：US511251
申请日：1974-10-02
申请人： Hiroshi Nakayama
发明人： Hiroshi Nakayama
CPC分类号： H03K17/26
摘要： An electronic timer switch capable of controlling the operation of a unit, such as an air conditioning apparatus, according to a preset time schedule even when the unit is switched on.
摘要翻译： 一种电子定时器开关，其能够即使在单元被接通时也可以根据预设的时间表来控制诸如空调设备的单元的操作。
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公开(公告)号：US20180123584A1
公开(公告)日：2018-05-03
申请号：US15725839
申请日：2017-10-05
申请人： Yazaki Corporation
发明人： Mitsuaki Morimoto
CPC分类号： H03K17/26 , B60L3/0084 , B60L3/04 , H03K17/18
摘要： A semiconductor switch control device includes a bidirectional shutoff circuit that transmits or shuts off a current flowing bidirectionally between a high-voltage battery and a high-voltage load, a resistor that detects a voltage of the bidirectional shutoff circuit, a first voltage detector that detects a voltage applied to the resistor, and a controller configured to determine malfunction of the bidirectional shutoff circuit, based on a first detected voltage detected by the first voltage detector. The bidirectional shutoff circuit includes a first FET and a second FET including respective source terminals connected in series, and a third FET and a fourth FET including respective source terminals connected in series. The resistor includes one end connected between the source terminals of the first FET and the second FET, and the other end connected between the source terminals of the third FET and the fourth FET.
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公开(公告)号：US09831867B1
公开(公告)日：2017-11-28
申请号：US15439785
申请日：2017-02-22
IPC分类号： H03L5/00 , H03K17/687 , H03K19/0175 , H01L29/20 , H02M3/158
CPC分类号： H03K19/017509 , H01L24/49 , H03K17/26 , H03K2217/0063 , H03K2217/0072
摘要： A half bridge GaN circuit is disclosed. The circuit includes a low side circuit, which has a low side switch, a low side switch driver configured to drive the low side switch, a first level shift circuit configured to receive a first level shift signal, and a second level shift circuit configured to generate a second level shift signal. The half bridge GaN circuit also includes a high side circuit, which has a high side switch configured to be selectively conductive according to a voltage level of a received high side switch signal, and a high side switch driver configured to generate the high side switch signal in response to the level shift signals. A transition in the voltage of the high side switch signal causes the high side switch driver to prevent additional transitions of the voltage level of the high side switch signal for a period of time.
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公开(公告)号：US08923365B2
公开(公告)日：2014-12-30
申请号：US13470973
申请日：2012-05-14
IPC分类号： H04B1/38
摘要： A communication method includes detecting at a gate drive unit a change of state of a command signal that is received via a command link of the gate drive unit and initiating, responsive to the change of state of the command signal, a blanking period in which the gate drive unit will process as incoming data any further changes of state of the command signal. The method also includes receiving incoming data at the gate drive unit, by processing modulations of the command signal, within the blanking period.
摘要翻译： 通信方法包括在门驱动单元处检测经由门驱动单元的命令链路接收的命令信号的状态改变，并且响应于命令信号的状态改变而启动消隐周期，其中， 门驱动单元将作为输入数据处理命令信号状态的进一步变化。 该方法还包括通过在消隐期内处理调制命令信号，在门驱动单元处接收输入数据。
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8.发明申请公开(公告)号：US20130207458A1
公开(公告)日：2013-08-15
申请号：US13572756
申请日：2012-08-13
IPC分类号： B60L3/00
CPC分类号： B60L3/00 , B60L3/0069 , B60L3/06 , B60L11/005 , B60L2270/20 , H03K17/08126 , H03K17/26 , H03K17/795 , Y02T10/7022
摘要： A discharge device actively discharges a main capacitor in an electric-power system of an electric-drive vehicle and comprises a discharge branch of a circuit connected in parallel to the capacitor and including a discharge transistor biased to “conduction” mode when the capacitor must be discharged. A control device is connected to a “gate/base” terminal of and controls the transistor, biasing the transistor to the mode when the capacitor is required to fee discharged. A control transistor maintains the discharge transistor in a “non-conductive” state when the control transistor is in the mode. The control transistor is in the state for the discharge transistor to be in the mode. A safety capacitor is interposed between the terminal and a power supply and charges when the discharge transistor is in the mode, causing a progressive decrease of current at the terminal, until the discharge transistor is biased to the state.
摘要翻译： 放电装置主动地放电电动车辆的电力系统中的主电容器，并且包括与电容器并联连接的电路的放电支路，并且当电容器必须为 出院 控制装置连接到晶体管的“栅极/基极”端子并控制晶体管，当电容器需要放电时，将晶体管偏置到模式。 当控制晶体管处于该模式时，控制晶体管将放电晶体管保持在“非导通”状态。 控制晶体管处于放电晶体管处于该模式的状态。 在端子和电源之间插入安全电容器，并且当放电晶体管处于模式时进行充电，导致端子处的电流逐渐减小，直到放电晶体管被偏置到该状态。
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公开(公告)号：US20080116955A1
公开(公告)日：2008-05-22
申请号：US11603073
申请日：2006-11-22
申请人： Cheng-Sung Chen , Wei-Hsuan Huang
发明人： Cheng-Sung Chen , Wei-Hsuan Huang
IPC分类号： H03K17/687
CPC分类号： H03K17/18 , H03K17/04206 , H03K17/26 , H03K17/284 , H03K17/687 , H03K17/6871 , H03K17/691 , H03K17/78 , H03K2217/0036
摘要： The present invention provides a driving circuit. It includes a plurality of current mirrors to generate a first charge current and a second charge current in response to a reference current. A switch circuit generates a driving signal in response to an input signal. A driving switch is coupled between the first charge current and the switch circuit. Once the driving switch is turned on and the level of the input signal is in high level, the switch circuit generates the driving signal, the level of the driving signal-being in high level, in response to the first charge current and the second charge current. A detection circuit generates a control signal to turn on/off the driving switch. The detection circuit turns off the driving switch to disable the first charge current after a period of delay time when the level of the driving signal is in high level.
摘要翻译： 本发明提供一种驱动电路。 它包括多个电流镜，以响应于参考电流产生第一充电电流和第二充电电流。 开关电路响应于输入信号产生驱动信号。 驱动开关耦合在第一充电电流和开关电路之间。 一旦驱动开关导通并且输入信号的电平处于高电平，则开关电路响应于第一充电电流和第二充电而产生驱动信号的电平，高电平的电平 当前。 检测电路产生控制信号以打开/关闭驱动开关。 当驱动信号的电平处于高电平时，检测电路关闭驱动开关以在延迟时间段之后禁用第一充电电流。
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10.发明授权Pulse-count control circuit wherein the input is sampled and inhibited upon input exceeding predetermined frequency 失效脉冲计数控制电路，其中输入在输入超过预定频率时被采样和禁止
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