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    • 65. 发明申请
    • SWITCHING CONVERTER WITH IMPROVED POWER DENSITY
    • 具有改善功率密度的开关转换器
    • US20170077837A1
    • 2017-03-16
    • US15258242
    • 2016-09-07
    • Texas Instruments Incorporated
    • Bin GuMichael Douglas Seeman
    • H02M7/797H03H11/04H02M1/15
    • H02M7/797H02M1/15
    • Disclosed examples include switching power converters, control methods and ripple filter circuits in which first and second switches are connected in series across first and second DC bus nodes, with an inductor connected to a switching node joining the first and second switches and a storage capacitor between the inductor and the second DC bus node. A control circuit operates the switches to alternately transfer ripple energy from a DC bus capacitor of the DC bus circuit through the inductor to the storage capacitor, and then to transfer ripple energy from the storage capacitor through the inductor to the DC bus capacitor to regulate the ripple voltage of the DC bus circuit, and the control circuit provides hysteretic control of the absolute value of the inductor current between a first value and a higher second value during transfer of ripple energy between the DC bus capacitor and the storage capacitor.
    • 公开的示例包括开关功率转换器,控制方法和波纹滤波器电路,其中第一和第二开关串联连接在第一和第二DC总线节点上,电感器连接到连接第一和第二开关的开关节点和存储电容器之间的存储电容器 电感器和第二DC总线节点。 控制电路操作开关以将纹波能量从DC总线电路的直流总线电容器通过电感器交替传输到存储电容器,然后将纹波能量从存储电容器通过电感器传输到直流总线电容器,以调节 DC总线电路的纹波电压,并且控制电路在DC总线电容器和存储电容器之间的纹波能量传递期间提供电感器电流在第一值和较高第二值之间的绝对值的滞后控制。
    • 68. 发明授权
    • Power conversion device, including serial switching element, that compensates for voltage fluctuations
    • 电源转换装置,包括串行开关元件,可补偿电压波动
    • US09571001B2
    • 2017-02-14
    • US13939852
    • 2013-07-11
    • FUJI ELECTRIC CO., LTD.
    • Satoru Fujita
    • H02M7/04H02M7/12H02M7/217H02M7/797
    • H02M7/04H02M7/125H02M7/217H02M7/797
    • Aspects of the invention include a step-up/step-down chopper unit, an inverter unit, a rectifier unit, first to third voltage detection means, and a drive control unit. Voltage regulation means of the drive control unit, in accordance with a detected voltage value detected by the voltage detection means, generates control signals for keeping the effective voltage value of a capacitor constant. In some aspects of the invention, the effective voltage value of the capacitor is controlled to be constant by the switching elements of the step-up/step-down chopper unit and inverter unit being driven by the control signals. The rectifier unit can suppress a surge voltage by causing energy stored in a inductor to be absorbed by storage elements when bidirectional switching elements are turned off.
    • 本发明的方案包括升压/降压斩波器单元,逆变器单元,整流单元,第一至第三电压检测装置和驱动控制单元。 驱动控制单元的电压调节单元根据由电压检测单元检测出的检测电压值,生成用于保持电容器的有效电压值恒定的控制信号。 在本发明的一些方面中,通过升压/降压斩波器单元的开关元件和由控制信号驱动的逆变器单元将电容器的有效电压值控制为恒定。 当双向开关元件关闭时,整流单元可以通过使存储在电感器中的能量被存储元件吸收来抑制浪涌电压。
    • 69. 发明授权
    • Layout of power converter
    • 功率转换器布局
    • US09559606B2
    • 2017-01-31
    • US14962074
    • 2015-12-08
    • DELTA ELECTRONICS, INC.
    • Juncheng LuZeng Li
    • H02M7/00H02M7/538H02M7/797
    • H02M7/003H02M7/538H02M7/797
    • A layout of a switching power converter, wherein the switching power converter includes: a capacitor unit receiving or outputting DC voltage; six power transistor units transforming the DC voltage to the AC voltage or the AC voltage to the DC voltage; and a carrier board with the capacitor unit and the six power transistor units on. The layout of the switching power converter includes a first commutation loop and a second commutation loop, in which the six power transistor units are arranged on the same surface of the carrier board. In order to ensure the first commutation loop and the second commutation loop as short as possible, the fifth power transistor unit is located at a middle position of the carrier board, surrounded by the other five power transistor units as closely as possible.
    • 一种开关电源转换器的布局,其中开关电源转换器包括:接收或输出直流电压的电容器单元; 六个功率晶体管单元将DC电压转换为AC电压或AC电压至DC电压; 和带有电容器单元和六个功率晶体管单元的载板。 开关功率转换器的布局包括第一换向环和第二换向环,其中六个功率晶体管单元布置在载板的同一表面上。 为了确保第一换向回路和第二换向回路尽可能短,第五功率晶体管单元位于载板的中间位置,由其它五个功率晶体管单元尽可能靠近地围绕。