Inverter circuit and control circuit thereof
    1.
    发明授权
    Inverter circuit and control circuit thereof 有权
    逆变电路及其控制电路

    公开(公告)号:US07522437B2

    公开(公告)日:2009-04-21

    申请号:US11617566

    申请日:2006-12-28

    IPC分类号: H02M7/5387 G05F1/00

    摘要: An inverter circuit and a control circuit thereof for converting DC power from the renewable energy or distributed energy into AC power so as to be fed into the AC utility power system according to related regulations. The inverter circuit comprises a buck-boost inverter, a DC-to-AC inverter comprising two half-bridge inverters, and a by-pass passive switch coupled to an input DC voltage and the positive terminal of a first DC voltage. The inverter circuit of the present invention prevents the switching loss of an active switch and the energy loss of a coupled inductor by use of the by-pass passive switch and improves the efficiency of the inverter circuit by use of voltage feed-forward compensation.

    摘要翻译: 一种逆变器电路及其控制电路,用于将来自可再生能源或分布式能量的直流电力转换为交流电力,以便根据相关规定进入交流电力系统。 逆变器电路包括降压 - 升压逆变器,包括两个半桥逆变器的DC-AC逆变器和耦合到输入DC电压的旁路无源开关和第一DC电压的正极。 本发明的逆变器电路通过使用旁路无源开关来防止有源开关的开关损耗和耦合电感器的能量损耗,并且通过使用电压前馈补偿来提高逆变器电路的效率。

    Method of producing solid wire for welding
    2.
    发明授权
    Method of producing solid wire for welding 有权
    生产焊接实心焊丝的方法

    公开(公告)号:US07485829B2

    公开(公告)日:2009-02-03

    申请号:US10910747

    申请日:2004-08-04

    摘要: A method for efficient production of a welding solid wire free of copper plating. The method consists of drawing by means of roller dies with the help of a dry solid lubricant for drawing which is at least either of sodium stearate or potassium stearate, removing the lubricant from the wire surface by means of a washing device, and applying a lubricant for wire feeding to the surface of the drawn wire by means of an oiling device. High-speed drawing by means of roller dies makes a stock wire into a welding solid wire having the diameter of the finished wire or nearly finished wire. The drawing step is followed by the washing step and the lubricant applying step, which are all accomplished in-line.

    摘要翻译: 一种无铜镀层焊接实线的高效生产方法。 该方法包括借助于干燥的固体润滑剂借助于辊模的拉伸,其是硬脂酸钠或硬脂酸钾中的至少一种,通过洗涤装置从线表面除去润滑剂,并施加润滑剂 用于通过上油装置将线材送进拉丝线的表面。 通过辊模进行高速拉伸,使得坯料线成为具有成品线的直径或几乎完成的线的焊接实心线。 拉伸步骤之后是洗涤步骤和润滑剂施加步骤,这些步骤都是在线完成的。

    Bridge battery voltage equalizer
    3.
    发明申请
    Bridge battery voltage equalizer 有权
    桥电池电压均衡器

    公开(公告)号:US20080116850A1

    公开(公告)日:2008-05-22

    申请号:US11602201

    申请日:2006-11-21

    IPC分类号: H02J7/00

    CPC分类号: H02J7/0016

    摘要: This present invention provides a bridge battery voltage equalizer to equalize the voltages of the serially connected battery strings, comprising at least one battery crossing over an energy-transferring circuit. A plurality of the energy-transferring circuits are interconnected in a bridge architecture. Each energy-transferring circuit having four nodes comprises a first semiconductor switch, a first diode, a second semiconductor switch, a second diode, and an inductor. One end of the first element switch is connected to a negative pole of the first diode thereto. A positive pole of the second diode is connected to one end of the second element switch thereto. The inductor is an energy storing element that crosses over between the negative pole of the first diode and the positive pole of the second diode.

    摘要翻译: 本发明提供了一种桥式电池电压均衡器,用于均衡串联连接的电池串的电压,包括至少一个电池与能量转移电路交叉。 多个能量传输电路以桥结构相互连接。 具有四个节点的每个能量转移电路包括第一半导体开关,第一二极管,第二半导体开关,第二二极管和电感器。 第一元件开关的一端与第一二极管的负极连接。 第二二极管的正极连接到第二元件开关的一端。 电感器是在第一二极管的负极和第二二极管的正极之间穿过的能量存储元件。

    Frequency-fluctuating interference removed receiver
    4.
    发明授权
    Frequency-fluctuating interference removed receiver 失效
    频率波动干扰消除接收机

    公开(公告)号:US5223807A

    公开(公告)日:1993-06-29

    申请号:US835558

    申请日:1992-02-14

    IPC分类号: H03H7/07

    CPC分类号: H03H7/07

    摘要: In order to efficiently and steadily remove a frequency-fluctuating interference wave, for instance, a leakage wave of a household electronic oven, intermixed into a received wave for communication, adaptively to the frequency deviation and the frequency fluctuation of the interference wave, a rejection band component included in the received wave applied onto a circulator, an output terminal of which is connected with a variable band rejection filter, is reflected from the output terminal on which impedance mismatch is caused by zero-impedance presented by the rejection filter on the basis of absorption of the input wave and applied to a detector through the circulator again, in response to a detection output of which a so-called peak-keeping control is effected on the variable band rejection filter for shifting the rejection band, so as to maximize the detection output of the detector adaptively to the frequency deviation and the frequency fluctuation of the interference wave.

    摘要翻译: 为了有效且稳定地去除频率波动的干扰波,例如家用电子烤箱的泄漏波,混合到接收的通信波中,适应于干扰波的频率偏差和频率波动,拒绝 包含在施加到循环器上的接收波形中的频带分量,其输出端与可变频带抑制滤波器相连,从输出端反射,在该输出端上基于阻抗滤波器呈现的零阻抗引起阻抗不匹配 响应于其检测输出,对可变带阻滤波器进行所谓的峰值保持控制,以便移动阻挡带,从而使输入波的吸收和再次通过循环器施加到检测器,以便最大化 检测器的检测输出自适应频率偏差和干扰波的频率波动。

    Apparatus for controlling H-bridge DC-AC inverter
    6.
    发明授权
    Apparatus for controlling H-bridge DC-AC inverter 有权
    H型直流逆变器控制装置

    公开(公告)号:US07990745B2

    公开(公告)日:2011-08-02

    申请号:US12144869

    申请日:2008-06-24

    IPC分类号: H02M7/5387 H02M3/24

    摘要: The present invention discloses an apparatus for controlling an H-bridge DC-AC inverter, comprising an H-bridge DC-DC converting circuit capable of converting unstable DC power into stable DC power and a full-bridge DC-AC inverting circuit capable of inverting DC power output from the H-bridge DC-DC converting circuit into AC power. The H-bridge DC-DC converting circuit comprises: a first active switching element and a second active switching element; an inductor capable of storing energy; a first passive switching element and a second passive switching element; and a first capacitor and a second capacitor. The full-bridge DC-AC inverting circuit comprises: a third active switching element, a fourth active switching element, a fifth active switching element and a sixth active switching element; an output inductor; and an output capacitor.

    摘要翻译: 本发明公开了一种用于控制H桥DC-AC逆变器的装置,包括能够将不稳定的直流电转换为稳定的直流电的H桥DC-DC转换电路和能够反相的全桥DC-AC反相电路 从H桥DC-DC转换电路输出的直流电源为交流电源。 H桥DC-DC转换电路包括:第一有源开关元件和第二有源开关元件; 能够存储能量的电感器; 第一无源开关元件和第二无源开关元件; 以及第一电容器和第二电容器。 全桥DC-AC反相电路包括:第三有源开关元件,第四有源开关元件,第五有源开关元件和第六有源开关元件; 输出电感; 和输出电容器。

    AC-TO-DC CONVERTING CIRCUIT APPLICABLE TO POWER-CHARGING MODULE
    7.
    发明申请
    AC-TO-DC CONVERTING CIRCUIT APPLICABLE TO POWER-CHARGING MODULE 审中-公开
    AC-TO-DC转换电路适用于功率充电模块

    公开(公告)号:US20110149606A1

    公开(公告)日:2011-06-23

    申请号:US12732353

    申请日:2010-03-26

    IPC分类号: H02M3/335

    摘要: The AC power generated by AC utility has been successfully transferred from AC-to-DC by means of an AC-to-DC converting circuit. This disclosure provides an AC-to-DC converting circuit applicable to a power-charging module, and the AC-to-DC converting circuit comprises two parts such as a first stage being a low-frequency AC to high-frequency AC converter comprising an input full-bridge rectifier, a full-bridge inverter and an immittance conversion circuit and a second stage being an AC-to-DC converter comprising a single-phase transformer and a full-bridge rectifier, where the inverter in the first stage is switched at high frequencies so as to reduce the size of the transformer in the second stage. Additionally, the immittance conversion circuit is further characterized in voltage to current conversion so as to simplify the control mechanism of the power-charging module, reduce the number of current measuring elements and the cost thereof.

    摘要翻译: 交流电源产生的交流电源已经通过AC到DC转换电路从AC到DC成功传输。 本公开内容提供了一种适用于充电模块的AC至DC转换电路,AC至DC转换电路包括两部分,例如第一级是低频AC至高频AC转换器,包括 输入全桥整流器,全桥逆变器和导纳转换电路,第二级是包括单相变压器和全桥整流器的AC-DC转换器,其中第一级中的逆变器被切换 以便在第二级中减小变压器的尺寸。 此外,导纳转换电路的特征还在于电压 - 电流转换,以简化充电模块的控制机构,减少电流测量元件的数量及其成本。

    RESONANCE CIRCUIT FOR DC-LINK VOLTAGE CONTROL IN DC-TO-AC INVERTER
    8.
    发明申请
    RESONANCE CIRCUIT FOR DC-LINK VOLTAGE CONTROL IN DC-TO-AC INVERTER 有权
    直流 - 直流逆变器直流链路电压控制的谐振电路

    公开(公告)号:US20110103107A1

    公开(公告)日:2011-05-05

    申请号:US12779190

    申请日:2010-05-13

    IPC分类号: H02M1/44

    CPC分类号: H02M5/458

    摘要: The present disclosure relates to a resonance circuit for DC-link voltage control in a DC-to-AC inverter. The resonance circuit comprises two active switches. Before the active switches of the DC-to-AC inverter are turned on, a DC-link voltage is isolated by the active switches and the active switches of the DC-to-AC inverter are discharged by the resonance circuit to zero voltage at both ends. Then, the active switches of the DC-to-AC inverter are turned on again after the DC-link voltage is charged by the resonance circuit until the DC-link voltage restores to a normal voltage value. Hence, the active switches of the DC-to-AC inverter achieve zero-voltage switching. Not only the switching loss can be reduced to enhance the conversion efficiency, but also the electro-magnetic interference as well as the RF interference due to dynamic transient changes of the voltage (dv/dt) and of the current (di/dt) can be lowered.

    摘要翻译: 本公开涉及一种用于DC-AC逆变器中的DC链路电压控制的谐振电路。 谐振电路包括两个有源开关。 在直流到交流逆变器的有源开关导通之前,有源开关将直流母线电压隔离,并且直流到交流逆变器的有源开关由谐振电路放电到两端的零电压 结束。 然后,在直流母线电压被谐振电路充电之后,DC-AC逆变器的有源开关再次导通,直到DC链路电压恢复到正常电压值。 因此,直流到交流逆变器的有源开关实现零电压开关。 不仅可以降低开关损耗以提高转换效率,而且还可以由于电压(dv / dt)和电流(di / dt)的动态瞬态变化引起的电磁干扰以及RF干扰 被降低

    DEVICE FOR CONTROLLING SINGLE-PHASE POWER CONDITIONER FOR RENEWABLE ENERGY SYSTEM
    9.
    发明申请
    DEVICE FOR CONTROLLING SINGLE-PHASE POWER CONDITIONER FOR RENEWABLE ENERGY SYSTEM 有权
    用于控制可再生能源系统的单相功率调节器的装置

    公开(公告)号:US20080129120A1

    公开(公告)日:2008-06-05

    申请号:US11675106

    申请日:2007-02-15

    IPC分类号: H02J9/06 H02M7/66

    摘要: A device for controlling a single-phase power conditioner for a renewable energy system. The device comprises: a power system, providing alternating current (AC) utility power; a renewable energy system, using a natural resource so as to generate direct current (DC) power; a DC-to-DC converter, accepting the DC power generated by the renewable energy system so as to convert an input DC voltage of the DC power to an output DC voltage at a voltage level different from the DC input voltage; a grid-tied power conditioner, transforming voltage levels of the AC power and DC power; a controller, issuing a control signal for controlling the grid-tied power conditioner; and a load, consuming electricity by way of the grid-tied power conditioner.

    摘要翻译: 一种用于控制可再生能源系统的单相功率调节器的装置。 该装置包括:提供交流(AC)公用电力的电力系统; 一个可再生能源系统,使用自然资源产生直流(DC)电力; 接收由可再生能源系统产生的直流电力,以将直流电力的输入直流电压转换为不同于直流输入电压的电压电平的输出直流电压的DC-DC转换器; 并网功率调节器,转换交流电源和直流电源的电压电平; 控制器,发出用于控制并网功率调节器的控制信号; 和负载,通过并网功率调节器消耗电力。

    Sheet metal member and method of manufacturing the member
    10.
    发明授权
    Sheet metal member and method of manufacturing the member 有权
    钣金件及其制造方法

    公开(公告)号:US06484547B1

    公开(公告)日:2002-11-26

    申请号:US09784435

    申请日:2001-02-23

    IPC分类号: B21B1500

    CPC分类号: B21D53/88 B21D22/14 B21H1/04

    摘要: In the present invention, a thin and disc-shaped blank made of steel plate is used. The present invention provides a method of manufacturing a sheet metal member comprising a circular base plate, and an annular projection bulged from at least one surface of the base plate so as to be concentric therewith, which can be easily and cheaply produced without loss of material, by only a few steps. A blank having an outer peripheral portion which has been thickened by a former step, is rotated while it is held between an upper and lower dies. At the same time, an edge angle portion of an outer peripheral surface of a drawing roller is pressed against one surface of the thickened outer peripheral portion which extrudes outwardly from the upper die of the blank, and the drawing roller is rotated, while it is moved in the direction of the center of the blank, and the thickened outer peripheral portion is drawn so as to make it think, thereby bulging the annular projection axially.

    摘要翻译: 在本发明中,使用由钢板制成的薄且圆盘状的坯料。 本发明提供一种制造包括圆形基板的金属板件的方法和从基板的至少一个表面凸出的与其同心的环形突起,其可以容易且便宜地生产而不损失材料 ,只有几步。 具有通过前一步骤加厚的外周部分的坯料在被保持在上模和下模之间时被旋转。 同时,拉伸辊的外周面的边缘角部分被压在从坯料的上模向外侧挤出的增厚外周部分的一个表面上,并且拉伸辊旋转,同时它是 沿坯料的中心方向移动,并且增厚的外周部分被拉伸以使其认为,从而轴向地凸出环形突起。