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    • 4. 发明授权
    • Capacitive load driving device
    • 电容式负载驱动装置
    • US07598781B2
    • 2009-10-06
    • US11878792
    • 2007-07-26
    • Yutaka Takita
    • Yutaka Takita
    • H03B1/00
    • G02F1/0516G02F1/035G02F1/313H03K17/04126H03K17/602
    • A capacitive load driving device applies a multi-level voltage to a capacitive load to drive the capacitive load. In the capacitive load driving device, a voltage control signal generator unit generates a voltage control signal. A voltage amplifier unit amplifies a voltage of the voltage control signal. A current amplifier unit amplifies a current of an output of the voltage amplifier unit to perform charging of the capacitive load. A falling control signal generator unit generates a falling pulse having a predetermined pulse width when a width of falling of the voltage control signal exceeds a predetermined value. A switching unit performs discharging of the capacitive load in response to the falling pulse received.
    • 容性负载驱动装置将多电平电压施加到电容性负载以驱动电容性负载。 在电容性负载驱动装置中,电压控制信号发生器单元产生电压控制信号。 电压放大器单元放大电压控制信号的电压。 电流放大器单元放大电压放大器单元的输出的电流以进行电容性负载的充电。 当电压控制信号的下降宽度超过预定值时,下降控制信号发生器单元产生具有预定脉冲宽度的下降脉冲。 开关单元响应于接收到的下降脉冲来执行电容性负载的放电。
    • 9. 发明申请
    • Variable-Voltage Self-Synchronizing Rectifier Circuits, Methods, and Systems
    • 可变电压自同步整流电路,方法和系统
    • US20160204714A1
    • 2016-07-14
    • US14935336
    • 2015-11-06
    • Ideal Power Inc.
    • William C. Alexander
    • H02M7/219
    • H03K17/66H01L27/0694H01L29/0804H01L29/0821H01L29/1004H01L29/1095H01L29/7302H01L29/732H01L29/735H01L29/7412H01L29/7416H01L29/747H01L29/872H02M1/08H02M7/219H02M2007/2195H03K17/60H03K17/602H03K17/687H03K2217/0054
    • The present application teaches, among other innovations, methods and circuits for operating a B-TRAN (double-base bidirectional bipolar junction transistor). A base drive circuit is described which provides high-impedance drive to the base contact region on whichever side of the device is operating as the collector (at a given moment). (The B-TRAN, unlike other bipolar junction transistors, is controlled by applied voltage rather than applied current.) The preferred implementation of the drive circuit is operated by control signals to provide diode-mode turn-on and pre-turnoff operation, as well as a hard ON state with a low voltage drop (the “transistor-ON” state). In some but not necessarily all preferred embodiments, an adjustable low voltage for the gate drive circuit is provided by a self-synchronizing rectifier circuit. Also, in some but not necessarily all preferred embodiments, the base drive voltage used to drive the c-base region (on the collector side) is varied while the base current at that terminal is monitored, so that no more base current than necessary is applied. This solves the difficult challenge of optimizing base drive in a B-TRAN.
    • 除了其他创新之外,本申请教导了用于操作B-TRAN(双基极双极结型晶体管)的方法和电路。 描述了一种基本驱动电路,其在设备的任何一侧作为收集器(在给定时刻)提供对基底接触区域的高阻抗驱动。 (B-TRAN与其他双极结型晶体管不同,由施加的电压而不是施加的电流控制。)驱动电路的优选实现由控制信号操作,以提供二极管模式导通和预关断操作,如 以及具有低电压降(“晶体管接通”状态)的硬导通状态。 在一些但不一定所有的优选实施例中,栅极驱动电路的可调低电压由自同步整流电路提供。 此外,在一些但不一定所有优选实施例中,用于驱动c-基极区域(集电极侧)的基极驱动电压在监测该端子处的基极电流的同时被改变,使得不再需要基极电流 应用。 这解决了在B-TRAN中优化基础驱动的困难挑战。