公开(公告)号：US4263557A

公开(公告)日：1981-04-21

申请号：US927795

申请日：1978-07-25

申请人： Willard B. Jarvinen

发明人： Willard B. Jarvinen

IPC分类号： H02M1/084 ,  H02P5/16

CPC分类号： H02M1/0845 ,  Y10S388/904 ,  Y10S388/912 ,  Y10S388/917

摘要： A circuit for controlling the rendering conductive of the controlled rectifiers of a power conversion unit to thereby control the power supplied to a load from a source of alternating current voltage employs a single means to sense a prescribed phase relationship between adjacent phase to neutral voltages of the source which means is utilized to develop a digital count representing a time-phase relationship with respect to the point determined. The digital count thus developed is supplied to a memory system to address that system and based upon the contents of the locations within the memory system thus addressed there is provided an output which determines the time and firing sequence of the rectifiers of the power conversion system. This output is then utilized to generate suitable signals which are applied to the rectifiers of the power conversion system to thereby control the power supplied to the load.

摘要翻译： 用于控制功率转换单元的受控整流器的再现导通，从而控制从交流电压源提供给负载的功率的电路采用单个装置来感测相位相对于中性点之间的规定相位关系 来源，其用于开发表示相对于所确定的点的时间 - 相位关系的数字计数。 如此开发的数字计数被提供给存储器系统以对该系统进行寻址，并且基于如此寻址的存储器系统内的位置的内容，提供了确定电力转换系统的整流器的时间和触发顺序的输出。 然后，该输出用于产生适用于功率转换系统的整流器的适当信号，从而控制提供给负载的功率。

公开(公告)号：US4446512A

公开(公告)日：1984-05-01

申请号：US340400

申请日：1982-01-18

申请人： Willard B. Jarvinen

发明人： Willard B. Jarvinen

IPC分类号： H02M1/08 ,  H02M1/12 ,  H02M7/525 ,  H02M7/539 ,  H03H11/04 ,  H02M5/00

CPC分类号： H02M7/539 ,  H02M7/525

摘要： A scheme for providing an output signal approximating a true sine wave representative of a sine wave source voltage from corrupted line voltages connecting the source to a load includes the development of a first signal representative of the corrupted lines line voltage. The first signal is then filtered to reject all but higher frequency components and this filtered output is then combined with the first signal to provide a combined signal which is further filtered to provide a final output signal.

摘要翻译： 用于提供接近代表源极与负载的损坏的线路电压的正弦波源电压的真正弦波的输出信号的方案包括形成表示损坏的线路电压的第一信号。 然后对第一信号进行滤波以拒绝所有但较高频率分量，然后将该滤波后的输出与第一信号组合以提供组合信号，该组合信号被进一步滤波以提供最终输出信号。

公开(公告)号：US4364007A

公开(公告)日：1982-12-14

申请号：US142782

申请日：1980-04-22

申请人： John H. Cutler ,  Willard B. Jarvinen ,  Loren H. Walker

发明人： John H. Cutler ,  Willard B. Jarvinen ,  Loren H. Walker

IPC分类号： G01R27/16 ,  G01R31/02

CPC分类号： G01R31/021 ,  G01R27/16

摘要： A detection system for detecting unintentional impedances between the power conductors and a first node of either a power conversion circuit or a load, the first node typically being an earth ground. The circuit has power level lines utilizing a wye-connected line filter network which has equal impedance values for each leg of the line filter and which defines a first node at the common connection thereof. A different impedance network is also connected in wye-fashion to the power level lines and defines a second node at the common connection thereof. Each impedance leg of the impedance network is also equal in impedance value whereby the second node normally has the same potential as the first node. The potential difference between the first and second nodes is frequency compensated to produce a system output signal indicative of a predetermined value of current in unintentional impedance between any of the power conductors and the first node.

摘要翻译： 一种用于检测电力导体与功率转换电路或负载的第一节点之间的无意阻抗的检测系统，第一节点通常是接地。 该电路具有利用连接有紫外线的滤波器网络的功率电平线路，其对线路滤波器的每个支路具有相等的阻抗值，并且在其公共连接处限定第一节点。 不同的阻抗网络也以白色方式连接到功率电平线并且在其公共连接处限定第二节点。 阻抗网络的每个阻抗支路的阻抗值也相等，从而第二节点通常具有与第一节点相同的电位。 第一和第二节点之间的电位差被频率补偿以产生指示任何电力导体和第一节点之间无意阻抗的电流的预定值的系统输出信号。