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166 条记录 (耗时 0.021 秒)

    Variation on a single-ended primary inductor converter
    21.
    发明授权
    Variation on a single-ended primary inductor converter 有权
    单端初级电感转换器的变化

    公开(公告)号：US6144565A

    公开(公告)日：2000-11-07

    申请号：US357672

    申请日：1999-07-20

    申请人： Patrice R. Lethellier

    发明人： Patrice R. Lethellier

    IPC分类号： H02M3/155 ,  H02M3/158 ,  H02M3/335 ,  G05F1/10 ,  H02M7/00

    CPC分类号： H02M3/155 ,  H02M3/158 ,  H02M2003/1557 ,  H02M3/005

    摘要： A switched mode DC-DC power converter of the flyback type includes a primary circuit and a secondary circuit capacitively coupled to one another. In a first aspect the primary includes circuitry for achieving a 2:1 current transfer gain over the input, in a second aspect the secondary includes circuitry for achieving a 2:1 current transfer gain over an input. Combined, a 4:1 current transfer gain may be realized.

    摘要翻译： 反激式的开关模式DC-DC功率转换器包括彼此电容耦合的初级电路和次级电路。 在第一方面，主要包括用于在输入端上实现2:1电流传输增益的电路，在第二方面，次级包括用于在输入端上实现2:1电流传输增益的电路。 组合时，可实现4：1的电流传输增益。

    DC-to-DC Converter having reduced ripple without need for adjustments
    22.
    发明授权
    DC-to-DC Converter having reduced ripple without need for adjustments 失效
    DC-DC转换器具有减小的纹波，无需调整

    公开(公告)号：US4274133A

    公开(公告)日：1981-06-16

    申请号：US50179

    申请日：1979-06-20

    申请人： Slobodan M. Cuk ,  Robert D. Middlebrook

    发明人： Slobodan M. Cuk ,  Robert D. Middlebrook

    IPC分类号： H02M3/00 ,  H02J1/02

    CPC分类号： H02M3/005

    摘要： A switching dc-to-dc converter employs inductance in series with the source to form an input circuit, and in series with the load to form an output circuit. Suitable switching means alternately connects an energy transfer capacitance in series in the input circuit and in the output circuit. The inductance may be provided by separate windings coupled to form a transformer. To reduce switching ripple in the input circuit, or output circuit, the transformer may be provided with an imbalance of leakage inductance in the primary winding and the secondary winding. The imbalance may be inherent in the design of the transformer, or in the design of the transformer core. In the case of tightly coupled inductances in the transformer, an equivalent imbalance may be achieved by a separate, external inductor connected in series in the input circuit, or the output circuit. In the case of using a separate inductor in series with the source in the input circuit, or the load in the output circuit, the transformer may be replaced with a single inductance. Such a single inductance may be used alone, or with other inductance in series with the load circuit or the input circuit to provide a converter also with an imbalance in the switching current ripple.

    摘要翻译： 开关式DC-DC转换器采用与源串联的电感，形成输入电路，并与负载串联形成输出电路。 合适的开关装置交替地将输入电路和输出电路中的能量传递电容串联连接。 电感可以由耦合以形成变压器的单独绕组提供。 为了减少输入电路或输出电路中的开关纹波，变压器可能会在初级绕组和次级绕组中提供漏电感的不平衡。 变压器的设计或变压器铁芯的设计中，不平衡可能是固有的。 在变压器中紧耦合电感的情况下，通过在输入电路或输出电路中串联连接的单独的外部电感可以实现等效的不平衡。 在使用与输入电路中的源或输出电路中的负载串联的单独的电感器的情况下，可以用单个电感代替变压器。 这样的单个电感可以单独使用，或者与负载电路或输入电路串联的其它电感一起使用，以提供开关电流纹波不平衡的转换器。

    INSULATED DC/DC CONVERTER
    23.
    发明申请
    INSULATED DC/DC CONVERTER 审中-公开

    公开(公告)号：US20180309376A1

    公开(公告)日：2018-10-25

    申请号：US15768517

    申请日：2016-10-13

    申请人： VALEO SYSTEMES DE CONTROLE MOTEUR

    发明人： Luis DE SOUSA

    IPC分类号： H02M3/335 ,  H02M3/00

    CPC分类号： H02M3/33584 ,  H02M3/005 ,  H02M3/33507 ,  H02M3/33576 ,  H02M2001/0058 ,  Y02B70/1491

    摘要： The invention concerns an isolated DC/DC converter (1) comprising an isolated circuit (3) having: a first arm (A) having a first switch (MA1), in series with a second switch (MA2); a magnetic component (100) having two primary circuits (101, 101′) and a secondary circuit (102) that are separated by at least one electrical isolation barrier, said magnetic component (100) being configured so as, during the conversion of an input voltage of the isolated DC/DC converter into an output voltage (Vo), to operate as a transformer from the primary circuits (101, 101′) to the secondary circuit (102) and as an impedance that stores energy in the primary circuits (101, 101′), and in which: the first arm (A) comprises a first capacitance (C1) in series with the two switches (MA1, MA2) and situated between the two switches (MA1, MA2), one of said primary circuits, called the second primary circuit (101′), is connected between a first end terminal of the first arm (A) and the connection point, called the second connection point (P2), between the second switch (MA2) of the first arm (A) and the first capacitance (C1), the first end terminal of the first arm (A) corresponding to the terminal of the first switch (MA1) that is not connected to the first capacitance (C1); and the other primary circuit, called the first primary circuit (101), is connected between a second end terminal of the first arm (A) and the connection point, called the first connection point (P1), between the first switch (MA1) and the first capacitance (C1), the second end terminal of the first arm (A) corresponding to the terminal of the second switch (MA2) that is not connected to the first capacitance (C1).

    REDUCING A DROP IN A RESIDUAL SUPPLY-SIGNAL LEVEL ON START UP OR RESTART OF A POWER SUPPLY
    28.
    发明申请
    REDUCING A DROP IN A RESIDUAL SUPPLY-SIGNAL LEVEL ON START UP OR RESTART OF A POWER SUPPLY 审中-公开
    在电源启动或重新启动时减少残留供电信号电平的下降

    公开(公告)号：US20170077816A1

    公开(公告)日：2017-03-16

    申请号：US15076526

    申请日：2016-03-21

    申请人： INTERSIL AMERICAS LLC

    发明人： Harold William Satterfield ,  James White

    IPC分类号： H02M3/158 ,  G06F1/26 ,  H02M3/00

    CPC分类号： H02M1/14 ,  G06F1/26 ,  G06F1/28 ,  H02M1/36 ,  H02M3/005 ,  H02M3/158 ,  H02M3/1584 ,  H02M2003/1586

    摘要： In an embodiment, a method includes generating a pulse-width-modulated signal having a duty cycle, and isolating a power-supply output node in response to the duty cycle corresponding to a signal magnitude that is less than a magnitude of an output signal on the power-supply output node. For example, where a power supply has a non-zero residual output signal (e.g., output voltage) on its output node after the power supply is deactivated, a power-supply controller can use such a technique to reduce or eliminate a drop in the residual output signal caused by, or that would be caused by, a restarting of the power supply.

    摘要翻译： 在一个实施例中，一种方法包括产生具有占空比的脉冲宽度调制信号，并且响应于对应于小于输出信号的幅度的信号幅度的占空比来隔离电源输出节点 电源输出节点。 例如，在电源被禁用之后，电源在其输出节点上具有非零残留输出信号（例如，输出电压），电源控制器可以使用这样的技术来减少或消除 剩余输出信号由电源重新启动引起，或将由重新启动引起。

    DC/AC inverter switch controller
    30.
    发明授权
    DC/AC inverter switch controller 有权
    DC / AC逆变开关控制器

    公开(公告)号：US08971078B2

    公开(公告)日：2015-03-03

    申请号：US14017873

    申请日：2013-09-04

    申请人： LSIS Co., Ltd.

    发明人： Ki Su Lee

    IPC分类号： H02M7/44 ,  H02M3/00 ,  H02M7/48 ,  H02M1/00

    CPC分类号： H02M7/44 ,  H02M3/005 ,  H02M7/4807 ,  H02M2001/007

    摘要： An inverter according to an embodiment of the present disclosure may include a converter having a switch, configured to convert a DC voltage into a half-wave rectified sine waveform voltage; a switching device unit having a switch, configured to convert the half-wave rectified sine waveform voltage into a sine waveform voltage; and a controller configured to control the on/off of the switch of the converter and the switch of the switching device unit.

    摘要翻译： 根据本公开的实施例的逆变器可以包括具有开关的转换器，其被配置为将DC电压转换为半波整流的正弦波形电压; 具有开关的开关器件单元，被配置为将半波整流的正弦波形电压转换为正弦波形电压; 以及控制器，被配置为控制所述转换器的开关和所述开关装置单元的开关的开/关。