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    • 3. 发明授权
    • Pulse transformer driver
    • 脉冲变压器驱动器
    • US08345779B2
    • 2013-01-01
    • US12416363
    • 2009-04-01
    • Sam Seiichiro OchiCharles Coleman
    • Sam Seiichiro OchiCharles Coleman
    • H04B3/00
    • H04B5/0093H03K5/1534H03K17/61H03K17/691H04B5/0031
    • Methods, systems, and devices are described for providing a communication system for handling pulse information. Embodiments of the invention provide a pulse shaping unit operable to avoid saturation of the pulse transformer, while being easily incorporated into IC processes. Some embodiments of the pulse shaping unit provide a two-to-three level driver unit for converting a two-level input voltage signal to a three-level driver signal for driving a pulse transformer. Other embodiments of the pulse shaping unit provide components configured to differentially drive a pulse transformer, effectively converting a two-level input voltage signal to a three-level driver signal.
    • 描述了用于提供用于处理脉冲信息的通信系统的方法,系统和设备。 本发明的实施例提供一种脉冲整形单元,其可操作以避免脉冲变压器的饱和,同时易于并入到IC工艺中。 脉冲整形单元的一些实施例提供用于将两电平输入电压信号转换为用于驱动脉冲变压器的三电平驱动器信号的二至三电平驱动器单元。 脉冲整形单元的其他实施例提供了构造成差分驱动脉冲变压器的部件,有效地将两级输入电压信号转换成三电平驱动器信号。
    • 4. 发明授权
    • Gate driver for power device
    • 电源设备的门驱动器
    • US06832356B1
    • 2004-12-14
    • US10136850
    • 2002-04-30
    • Sam Seiichiro Ochi
    • Sam Seiichiro Ochi
    • G06F1750
    • H03K17/0822
    • A power module includes a power semiconductor device having a first terminal, a second terminal, and a third terminal. The second terminal is a control terminal to regulate flow of electricity between the first and third terminals. A gate driver has an output node coupled to the second terminal of the power device. The gate driver is configured to output a first conductive state, a second conductive state, and a third conductive state. A pull-down resistor has a first end and a second end. The first end of the pull-down resistor is coupled to the output of the gate driver.
    • 功率模块包括具有第一端子,第二端子和第三端子的功率半导体器件。 第二端子是用于调节第一和第三端子之间的电流的控制端子。 栅极驱动器具有耦合到功率器件的第二端子的输出节点。 栅极驱动器被配置为输出第一导通状态,第二导通状态和第三导通状态。 下拉电阻器具有第一端和第二端。 下拉电阻的第一端耦合到栅极驱动器的输出端。
    • 5. 发明授权
    • Performance prediction method for semiconductor power modules and ICS
    • 半导体功率模块和ICS的性能预测方法
    • US5654896A
    • 1997-08-05
    • US332482
    • 1994-10-31
    • Sam Seiichiro Ochi
    • Sam Seiichiro Ochi
    • G01R31/30H01L29/78G06F11/00
    • G01R31/30H01L2224/32245H01L2224/48091H01L2224/48247H01L2224/48465H01L2224/73265H01L2924/1301H01L2924/1305H01L2924/13055H01L2924/13091
    • Apparatus (30) and method (70) for predicting the future performance of a semiconductor power module, power device, or high power integrated circuit for the purpose of planning its repair or replacement before it actually fails. The apparatus provides a central processor (33), output device (37), user interface (39), system memory (35), and data base (41). The method is provided by an application specific integrated circuit (45) or custom software program (45). The method provides a measurement and testing procedure for device parameters such as thermal resistance R.sub.thJC, power supply voltage V.sub.DD, and power supply current I.sub.DD. These device parameters typically characterize various chip components including the die attached interface, chip structure, and bonding wires. As these components degrade, the method via monitoring device parameters turns-off the device and its peripheral circuits and apparatus in an orderly manner.
    • 用于预测半导体功率模块,功率器件或高功率集成电路的未来性能的装置(30)和方法(70),用于在其实际故障之前规划其修理或更换。 该装置提供中央处理器(33),输出装置(37),用户接口(39),系统存储器(35)和数据库(41)。 该方法由专用集成电路(45)或定制软件程序(45)提供。 该方法提供了诸如热电阻RthJC,电源电压VDD和电源电流IDD等器件参数的测量和测试程序。 这些器件参数通常表征各种芯片组件,包括芯片附接接口,芯片结构和接合线。 随着这些组件的劣化,通过监控设备参数的方法以有序的方式关闭设备及其外围电路和设备。
    • 6. 发明授权
    • Power supply with standby power
    • 电源备用电源
    • US08143748B2
    • 2012-03-27
    • US12472539
    • 2009-05-27
    • Sam Seiichiro Ochi
    • Sam Seiichiro Ochi
    • H01H31/10G06F1/26
    • H02M3/156H02M2001/0032Y02B70/16Y10T307/625Y10T307/76
    • Methods, systems, and devices are described for auxiliary power with low standby power consumption. Switching power converters typically include a switching power element (e.g., a power transistor), driven by a switching controller (e.g., including a gate driver). The power output of the switching power converter may be a function of the switching signal provided by the switching controller. For example, a pulse-width modulated (“PWM”) signal may be used to drive the switching power element, and the output of the switching controller may be adjusted by adjusting the frequency and/or duty cycle of the PWM signal. Embodiments implement cycle extension techniques to effectively extend a portion of the PWM signal to generate additional charge. The additional charge may be used to power an auxiliary power unit. The auxiliary power unit may then be used to drive the switching controller and/or to provide a source of power for other internal or external components.
    • 描述了具有低待机功耗的辅助电源的方法,系统和设备。 开关电源转换器通常包括由开关控制器(例如,包括栅极驱动器)驱动的开关功率元件(例如,功率晶体管)。 开关功率转换器的功率输出可以是由开关控制器提供的开关信号的函数。 例如,可以使用脉冲宽度调制(“PWM”)信号来驱动开关功率元件,并且可以通过调整PWM信号的频率和/或占空比来调节开关控制器的输出。 实施例实现循环扩展技术以有效地扩展PWM信号的一部分以产生附加电荷。 附加电荷可用于为辅助电源单元供电。 然后可以使用辅助动力单元来驱动开​​关控制器和/或为其他内部或外部组件提供电源。
    • 8. 发明申请
    • VOLTAGE LEVEL SHIFTER FOR ARBITRARY INPUT SIGNALS
    • 用于仲裁输入信号的电压电平变换器
    • US20100315150A1
    • 2010-12-16
    • US12840996
    • 2010-07-21
    • Sam Seiichiro Ochi
    • Sam Seiichiro Ochi
    • H03L5/00
    • H03K19/018564H03F3/2173H03F2200/291H03K17/6874
    • Methods, systems, and devices are described for providing voltage level shifting that may operate reliably and at low power, even at high voltages and/or high switching frequencies. Embodiments receive an input signal representing input information, and effectively generate two voltage responses as a function of the input signal. Each voltage response includes exponential terms as a function of resistive and capacitive loading effects of components of the embodiments. A combined response signal is generated substantially as a superposition of the first response signal and the second response signal. A high-side driver signal is then generated as a function of the combined response signal, such that the high-side driver signal substantially preserves the input information represented by the input signal, and such that the first exponential response and the second exponential response are substantially absent from the high-side driver signal.
    • 描述了用于提供即使在高电压和/或高开关频率下可靠且低功率运行的电压电平转换的方法,系统和装置。 实施例接收表示输入信息的输入信号,并有效地产生作为输入信号的函数的两个电压响应。 每个电压响应包括指数项作为实施例的组件的电阻和电容负载效应的函数。 基本上产生组合响应信号作为第一响应信号和第二响应信号的叠加。 然后,根据组合的响应信号产生高侧驱动器信号,使得高侧驱动器信号基本上保留由输入信号表示的输入信息,并且使得第一指数响应和第二指数响应为 基本上不存在高侧驾驶员信号。
    • 9. 发明授权
    • Voltage level shifter
    • 电压电平转换器
    • US07782115B2
    • 2010-08-24
    • US12422060
    • 2009-04-10
    • Sam Seiichiro Ochi
    • Sam Seiichiro Ochi
    • H03L5/00
    • H03K19/018564H03F3/2173H03F2200/291H03K17/6874
    • Methods, systems, and devices are described for providing voltage level shifting that may operate reliably and at low power, even at high voltages and/or high switching frequencies. Embodiments receive an input signal representing input information, and effectively generate two voltage responses as a function of the input signal. Each voltage response includes exponential terms as a function of resistive and capacitive loading effects of components of the embodiments. A combined response signal is generated substantially as a superposition of the first response signal and the second response signal. A high-side driver signal is then generated as a function of the combined response signal, such that the high-side driver signal substantially preserves the input information represented by the input signal, and such that the first exponential response and the second exponential response are substantially absent from the high-side driver signal.
    • 描述了用于提供即使在高电压和/或高开关频率下可靠且低功率运行的电压电平转换的方法,系统和装置。 实施例接收表示输入信息的输入信号,并有效地产生作为输入信号的函数的两个电压响应。 每个电压响应包括指数项作为实施例的组件的电阻和电容负载效应的函数。 基本上产生组合响应信号作为第一响应信号和第二响应信号的叠加。 然后,根据组合的响应信号产生高侧驱动器信号,使得高侧驱动器信号基本上保留由输入信号表示的输入信息,并且使得第一指数响应和第二指数响应为 基本上不存在高侧驾驶员信号。