Clamped quasi-resonant step-up inverter

    公开(公告)号:US10811995B2

    公开(公告)日:2020-10-20

    申请号:US16513647

    申请日:2019-07-16

    IPC分类号: H02M7/5383 H02M7/538 H02M7/48

    摘要: A device which, through its self-oscillation, generates a stable high voltage DC or AC output from a low voltage DC input. The device automatically maintains a desired voltage on an output capacitor, despite changes in output load or input voltage. The device is capable of dead-short operation, capacitor charging, high voltage step-up, high efficiency, and high power density. The capability to step up low voltage to high voltage in such a manner paves the way for advancement in battery-to-grid inverter technology, portable welding devices, portable medical devices, aircraft and spacecraft propulsion devices among many other areas.

    CONTROL OF NON-SELF-EXCITING-CONVERTER
    6.
    发明申请
    CONTROL OF NON-SELF-EXCITING-CONVERTER 审中-公开
    非自动转换器的控制

    公开(公告)号:US20160128147A1

    公开(公告)日:2016-05-05

    申请号:US14893096

    申请日:2014-05-15

    IPC分类号: H05B33/08 H02M7/5383

    摘要: Control circuits (1) for controlling non-self-exciting converters (100) are provided with network circuits (11-16) for deriving control signals destined for the converters (100) for starting the converters (100) after zero-crossings of first signals that enter the converters (100). These control signals are derived from the first signals. The network circuits (11-16) may comprise serial connections of resistor circuits (14, 15) and main capacitors (13) and may comprise break-over-circuitry (11) for controlling switching elements (105) of the converters (100) via the control signals. The control circuits (1) may further comprise first regulator circuits (17-29) for, in dependence of the first signals, delaying the control signals to control an amount of power transferred, and may further comprise second regulator circuits (30, 31) for, in dependence of one or more load parameter signals, delaying the control signal to control an amount of power transferred.

    摘要翻译: 用于控制非自激变换器(100)的控制电路(1)设置有网络电路(11-16),用于导出用于转换器(100)的控制信号,用于在第一 进入转换器(100)的信号。 这些控制信号从第一信号导出。 网络电路(11-16)可以包括电阻电路(14,15)和主电容器(13)的串联连接,并且可以包括用于控制转换器(100)的开关元件(105)的断开电路(11) 通过控制信号。 控制电路(1)还可以包括第一调节器电路(17-29),用于根据第一信号延迟控制信号以控制传送的功率量,并且还可以包括第二调节器电路(30,31) 因为根据一个或多个负载参数信号,延迟控制信号以控制传送的功率量。

    Cascaded switching power converter for coupling a photovoltaic energy source to power mains
    7.
    发明授权
    Cascaded switching power converter for coupling a photovoltaic energy source to power mains 有权
    用于将光伏能源耦合到电源的级联开关电源转换器

    公开(公告)号:US09077262B2

    公开(公告)日:2015-07-07

    申请号:US12933990

    申请日:2009-04-28

    申请人: John L. Melanson

    发明人: John L. Melanson

    摘要: A cascaded switching power converter for coupling a photovoltaic (PV) energy source to power mains provides a high-efficiency and a potentially simple control mechanism for AC solar energy conversion systems. The PV energy source charges a capacitive storage element through a DC-DC converter, and an inverter couples energy from the capacitive storage element to the mains supply. The DC-DC converter is controlled so that ripple present on the capacitive storage element due to current drawn by the inverter is not reflected at the input of the DC-DC converter, which is accomplished by varying the conversion ratio of the DC-DC converter with the ripple voltage present across the capacitor. The average voltage of the capacitor can also be increased with increases in the available power output from the PV energy source, so that a corresponding increase in power is transferred to the mains supply.

    摘要翻译: 用于将光伏(PV)能量源耦合到电源的级联开关功率转换器为AC太阳能转换系统提供了高效率和潜在的简单的控制机制。 PV能源通过DC-DC转换器为电容性存储元件充电,并且逆变器将能量从电容存储元件耦合到电源。 控制DC-DC转换器,使得由于逆变器引起的电流而在电容性存储元件上产生的纹波不会反映在DC-DC转换器的输入端,这是通过改变DC-DC转换器的转换比 纹波电压存在于电容器两端。 电容器的平均电压也可以随着来自PV能源的可用功率输出的增加而增加,从而相应的功率增加被传送到电源。

    Resonant circuit with constant current characteristics
    9.
    发明授权
    Resonant circuit with constant current characteristics 有权
    具有恒定电流特性的谐振电路

    公开(公告)号:US09054602B2

    公开(公告)日:2015-06-09

    申请号:US12965090

    申请日:2010-12-10

    摘要: An electronic resonant circuit of very high efficiency which is suitable for driving loads with a known and controlled current. The resonant circuit has input terminals and output terminals with a first reactance Xs, in series with an input terminal, a second reactance XL, in series with an output terminal, and a reactance Xp, connected such that there is a series connection path between the first input terminal through Xs and Xp to the second input terminal and such that there is also a second series connection path between the first output terminal through XL and Xp to the second output terminal the input terminals being driven from a high frequency inverter, the output terminals being connected to a load, the value of the reactances Xs, XL and Xp being chosen such that at least one frequency, the reactances of Xs, XL and Xp are approximately similar in magnitude. The reactance Xs and second reactance XL, are predominantly capacitive over a wide range of the frequency of operation and the reactance Xp, is predominantly inductive over a wide range of the frequency of operation. The circuit according to this invention is particularly suited to driving LED lighting systems, constant torque motors, battery charging and capacitor charging.

    摘要翻译: 一种非常高效率的电子谐振电路,适用于驱动具有已知和受控电流的负载。 谐振电路具有输入端子和输出端子,其具有与输入端子串联的第一电抗Xs,与输出端子串联的第二电抗器XL,以及电抗器Xp,其连接成使得在 第一输入端子通过Xs和Xp连接到第二输入端子,并且在第一输出端子通过XL和Xp到第二输出端子之间还存在第二串联连接路径,输入端子由高频逆变器驱动,输出端 端子连接到负载,选择电抗Xs,XL和Xp的值使得至少一个频率,Xs,XL和Xp的电抗在大小上大致相似。 电抗Xs和第二电抗XL在工作频率的宽范围内主要是电容性的,并且电抗Xp主要在操作频率的宽范围内是电感的。 根据本发明的电路特别适用于驱动LED照明系统,恒转矩电动机,电池充电和电容器充电。