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    • 1. 发明授权
    • Isolated power converter having primary feedback control
    • 具有初级反馈控制的隔离式电源转换器
    • US06370039B1
    • 2002-04-09
    • US09540058
    • 2000-03-31
    • Mark D. Telefus
    • Mark D. Telefus
    • H02M300
    • H02M3/3376H02M2001/007H02M2001/008
    • The present invention comprises an isolated dual power supply having an internal feedback loop. The dual power supply comprises power converter responsive to an error signal for generating a DC internal regulated output voltage coupled to a DC/AC switching power converter having a transformer. The primary winding of the transformer is coupled to the DC internal output voltage and to one or more power switches. A control circuit drives the one or more power switches such that an alternating current having substantially a constant duty cycle flows through the primary winding. An error amplifier produces a control signal proportional to the difference of an output voltage at a load coupled to the secondary winding and a reference voltage equal to the maximum expected voltage losses at the load. The error signal is formed from a combination of the control signal and a signal proportional to the internal voltage output.
    • 本发明包括具有内部反馈回路的隔离双电源。 双电源包括响应于误差信号的功率转换器,用于产生耦合到具有变压器的DC / AC开关功率转换器的DC内部稳压输出电压。 变压器的初级绕组耦合到DC内部输出电压和一个或多个电源开关。 控制电路驱动一个或多个功率开关,使得具有基本上恒定占空比的交流电流流过初级绕组。 误差放大器产生与耦合到次级绕组的负载上的输出电压的差成比例的控制信号和等于负载时的最大预期电压损耗的参考电压。 误差信号由控制信号和与内部电压输出成比例的信号的组合形成。
    • 2. 发明授权
    • Device for operating inverter and power system
    • 逆变器和电力系统运行的装置
    • US06252785B1
    • 2001-06-26
    • US09691136
    • 2000-10-19
    • Ryuzo HagiharaKenji UchihashiTakeo Ishida
    • Ryuzo HagiharaKenji UchihashiTakeo Ishida
    • H02M300
    • H02M7/493H02J3/383H02M2001/0048Y02B70/1491Y02E10/563Y10S323/906
    • A device for operating inverters according to the present invention can operate a plurality of inverters for converting DC output from a DC source such as a solar cell to AC output efficiently without relying on a particular inverter. The plurality of inverters are connected to the DC source through switches. DC output from a DC source is measured by a measuring device to determine the number of inverters to be operated on a basis of the output result from the measuring device. The inverters to be added or cut off are determined among the plurality of inverters at random on a basis of the random number and switches of the determined inverters are turned ON or OFF in order to select inverters to be operated.
    • 根据本发明的用于操作逆变器的装置可以操作多个反相器,用于将来自诸如太阳能电池的DC源的DC输出有效地转换成AC输出,而不依赖于特定的反相器。 多个逆变器通过开关连接到DC源。 来自直流电源的直流输出由测量装置测量,以根据测量装置的输出结果来确定要操作的逆变器的数量。 基于随机数,随机地在多个逆变器之间确定要添加或切断的反相器,并且将所确定的反相器的开关导通或关闭以选择要被操作的反相器。
    • 4. 发明授权
    • Power controller for setting the power of the electrical loads of an electrical appliance
    • 用于设置电器电气负载功率的功率控制器
    • US06365988B1
    • 2002-04-02
    • US09453257
    • 1999-12-02
    • Klaus ImerRohit VepariJürgen QuinerWilfried Klopfer
    • Klaus ImerRohit VepariJürgen QuinerWilfried Klopfer
    • H02M300
    • H05B1/0213H05B3/68Y10T307/406
    • In a power controller for setting the power of the electrical loads of an electrical appliance, in particular of an electrical cooker, the heating resistance of a load can be connected selectively to the phase voltage of, for example, 230 V or to the line voltage of, for example 400 V. The heating power can be pulsed electromechanically in each switching level, in which case the power pulses which are supplied to the load and are switched on for relatively different times govern the percentage of the heating power. The minimum available heating power of about 2.5 to 3.5% of the maximum heating power is achieved reliably and in the long term in that a lower voltage is applied in the lower power range than in the highest power range. In order to ensure that the bimetallic heating resistor is always connected to a low voltage when the hot plate resistance is connected to two operating voltages (400 V and 230 V), a half-wave rectifier arrangement is provided, which acts on the bimetallic heating resistor only at the higher operating voltage.
    • 在用于设置电器,特别是电饭煲的电负载的功率的功率控制器中,负载的加热电阻可以选择性地连接到例如230V的相电压或线电压 例如为400V。加热功率可以在每个开关电平中以机械电机进行脉冲振荡,在这种情况下,提供给负载并接通相对不同时间的功率脉冲控制加热功率的百分比。 最大可靠加热功率为最大加热功率的2.5〜3.5%的最低可用加热功率,长期而言,其功率范围较低,功率范围较低。 为了确保当双极金属加热电阻连接到两个工作电压(400 V和230 V)时,双金属加热电阻总是连接到低电压,提供半波整流器布置,其作用于双金属加热 电阻只能在较高的工作电压下工作。
    • 6. 发明授权
    • Inherently short-circuit resistant power distribution system
    • 内阻短路配电系统
    • US06633493B2
    • 2003-10-14
    • US10213415
    • 2002-08-05
    • Lothar HeinemannJens Helfrich
    • Lothar HeinemannJens Helfrich
    • H02M300
    • H01F30/04H02J1/14
    • A power distribution system is described for supplying power to electronic assemblies, in particular for use in the field of deep ocean oil production. The electrical power is supplied from a voltage source via a supply cable to theprimary winding of a distribution transformer. A number of secondary windings, preferably four, are disposed in addition to the primary winding on the core of the distribution transformer. The windings on the common core are subdivided into a number n of winding packs corresponding to the number n of secondary windings, and with each winding pack containing an n-th part of the primary winding and one of the secondary windings. Electronic assemblies are each connected via a connecting cable to one of the secondary windings.
    • 一种配电系统被描述为向电子组件供电,特别是用于深海石油生产领域。 电源从电源通过供电电缆提供给配电变压器的主绕组。 除了配电变压器的铁芯上的初级绕组之外,还设置有多个次级绕组,优选地为四个。 公共芯上的绕组被细分为与次级绕组的数量n对应的数量n个绕组,并且每个绕组包含初级绕组的第n部分和次级绕组之一。 电子组件各自通过连接电缆连接到其中一个次级绕组。
    • 7. 发明授权
    • Inverter device
    • 变频器
    • US06377478B1
    • 2002-04-23
    • US09322180
    • 1999-05-28
    • Takashi Morishita
    • Takashi Morishita
    • H02M300
    • H02P23/06
    • A method and apparatus for conducting regenerative braking for a motor load is disclosed wherein the load is driven by a plurality of power cells on each phase-line to the load, the plurality of power inverters comprising at least one single phase power inverter and at least one 3-phase inverter wherein the 3-phase inverter is connected across 3-phase lines. First, it is detected when the motor load is regenerating a motor load voltage. Then, each single phase inverter in each phase line is shorted out after detecting the motor load regeneration. The motor load voltage is then supplied to the 3-phase inverter. Finally, the load motor voltage is lowered by conducting regenerative braking through the 3-phase inverter.
    • 公开了一种用于进行电动机负载的再生制动的方法和装置,其中负载由每个相线上的多个电力单元驱动到负载,所述多个电力逆变器包括至少一个单相电力逆变器,并且至少 一个三相逆变器,其中三相逆变器连接在三相线路上。 首先,检测电机负载是否正在再生电机负载电压。 然后,检测到电机负载再生后,各相线路中的每个单相逆变器短路。 然后将电机负载电压提供给三相逆变器。 最后,通过三相逆变器进行再生制动,降低负载电动机电压。
    • 9. 发明授权
    • DC-DC power supply with at least two paralleled converters and current share method for same
    • 具有至少两个并联转换器的直流 - 直流电源和相同的电流共享方法
    • US06768658B2
    • 2004-07-27
    • US10234221
    • 2002-09-04
    • Marty Perry
    • Marty Perry
    • H02M300
    • H02M3/1584H02J1/102Y10T307/707
    • A DC-DC power supply with at least two paralleled converters and a current share method for the power supply are presented. According to one embodiment, the power supply includes first and second current mode controlled power converters connected in parallel for powering a load. Each of the paralleled power converters may include a voltage error amplifier, and the output terminals of the respective voltage error amplifiers are connected together. The power supply further includes a slow loop current share control circuit that is responsive to a sensed current in each of the power converters and, based on the sensed currents, forces the power converters to equally contribute to the load current.
    • 提出了具有至少两个平行转换器的DC-DC电源和用于电源的电流共享方法。 根据一个实施例,电源包括并联连接的用于为负载供电的第一和第二电流模式受控电力转换器。 每个并联的功率转换器可以包括电压误差放大器,并且各个电压误差放大器的输出端子连接在一起。 电源还包括缓慢回路电流共享控制电路,其响应于每个功率转换器中的感测电流,并且基于所感测的电流迫使功率转换器对负载电流同样有贡献。
    • 10. 发明授权
    • Method for controlling a plurality of electrical loads operated at the same time by a current source
    • 用于控制由电流源同时操作的多个电负载的方法
    • US06600237B1
    • 2003-07-29
    • US09706628
    • 2000-11-06
    • Eberhard Meissner
    • Eberhard Meissner
    • H02M300
    • H02J1/14B60R16/03H02M1/14H02M2001/008Y10T307/43Y10T307/484
    • In a method for controlling a plurality of electrical loads operated at the same time by a current source using a clocked or pulsed operating current, the instant and/or duration of pulse driving for the operating current of at least one load are synchronized to the operation of the other loads in such a way, and are matched to one another such, that the sum of the currents flowing to supply the loads assumes as constant a value as possible, and both the fluctuations and the rates of change in the sum of the currents flowing to supply the loads are minimized. The clocking or pulsing of the operating current of the electrical loads sets a partial load state for the load, or the load is operated from a power supply having a higher voltage than the rated operating voltage of the load.
    • 在利用时钟脉冲或脉冲工作电流控制由电流源同时操作的多个电负载的方法中,用于至少一个负载的工作电流的脉冲驱动的瞬间和/或持续时间与操作同步 的其他负载,并且彼此匹配,使得流动供应负载的电流的总和尽可能地保持恒定值,并且波动和变化率 流向供应负载的电流最小化。 电负载的工作电流的时钟或脉冲为负载设置部分负载状态,或者负载从具有比负载的额定工作电压更高的电压的电源操作。