公开(公告)号：US5212436A

公开(公告)日：1993-05-18

申请号：US805718

申请日：1991-12-06

申请人： Stanley J. Nacewicz ,  William R. Manning

发明人： Stanley J. Nacewicz ,  William R. Manning

IPC分类号： H02K17/08 ,  H02P1/42

CPC分类号： H02P1/42

摘要： An autotransformer is used to replace the start capacitor in a split phase induction motor. The autotransformer windings are protected by a PTC resistor which also serves to effectively de-energize the auxiliary winding. In a preferred embodiment, efficiency of the motor in the run mode is enhanced by shunting the secondary of the autotransformer with an NTC element. In alternative embodiments a relay coil is placed in series with the auxiliary winding circuit to remove the PTC and the primary of the autotransformer from the circuit when the motor is in the run mode.

公开(公告)号：US5617001A

公开(公告)日：1997-04-01

申请号：US387998

申请日：1995-02-13

申请人： Stanley J. Nacewicz ,  Stephen P. Geishecker

发明人： Stanley J. Nacewicz ,  Stephen P. Geishecker

IPC分类号： H02H7/08 ,  H02P1/44 ,  H02D1/00

CPC分类号： H02P1/445 ,  H02H7/0816

摘要： A starting circuit for use with single phase induction motors such as capacitor run and capacitor start, capacitor run motors is shown having a triggerable semiconductor (Q1, Q2 and Q3) serially connected to the auxiliary winding (AW) across the power supply (L1, L2). A resistor (RA) is serially connected at (J1) to the main winding (MW) to form a voltage divider to aid in providing triggering current to the triggerable semiconductor. A thermistor (PTC) is connected between the gate and the voltage divider junction (J1). The triggerabIe semiconductor is shown as a triac (Q1) in certain embodiments and as back to back SCRs (Q2 and Q3) in other embodiments. In high current motors the voltage divider resistor (RA) is shown thermally coupled to the thermistor (PTC).

摘要翻译： 示出了用于电容器运行和电容器启动的单相感应电动机的启动电路，电容器运行电动机具有串联连接到电源（L1，Q2）上的辅助绕组（AW）的可触发半导体（Q1，Q2和Q3） L2）。 电阻器（RA）在（J1）处串联连接到主绕组（MW），以形成分压器，以帮助向触发半导体提供触发电流。 一个热敏电阻（PTC）连接在栅极和分压器结（J1）之间。 在某些实施例中，触发板半导体被示为三端双向可控硅（Q1），在其它实施例中示出为背靠背SCR（Q2和Q3）。 在大电流电机中，分压电阻（RA）显示为热耦合到热敏电阻（PTC）。

公开(公告)号：US5170307A

公开(公告)日：1992-12-08

申请号：US708535

申请日：1991-05-31

申请人： Stanley J. Nacewicz ,  Richard C. Ellis ,  Alfred Raulino ,  Richard L. Jenne

发明人： Stanley J. Nacewicz ,  Richard C. Ellis ,  Alfred Raulino ,  Richard L. Jenne

IPC分类号： H02K5/22 ,  H01H1/58 ,  H01H61/00 ,  H02K11/00 ,  H02K17/30

CPC分类号： H01H61/002 ,  F25B2400/077 ,  H01H1/58

摘要： A split phase electric motor starter and protector are shown having a housing which receives a PTC starter switch and a motor protector and provides various wiring options for connecting the PTC switch and, if desired, a capacitor to a motor depending upon the particular requirements of an application. The housing optionally accommodates a capacitor support bracket.

公开(公告)号：US5585990A

公开(公告)日：1996-12-17

申请号：US444446

申请日：1995-05-19

申请人： William R. Manning ,  Jeffrey P. Rudd ,  Byron T. Yarboro ,  Stanley J. Nacewicz

发明人： William R. Manning ,  Jeffrey P. Rudd ,  Byron T. Yarboro ,  Stanley J. Nacewicz

IPC分类号： H02H7/08 ,  H02H1/06 ,  H02H7/085 ,  H02H7/09 ,  H02H11/00 ,  H02P23/00 ,  H02H5/04

CPC分类号： H02H7/09 ,  H02H1/06 ,  H02H7/0852 ,  H02H11/007

摘要： An electronic motor protection system is shown having a power supply usable with multivoltage supplies and providing protection from over-temperature conditions caused by various fault conditions. The system also has optional features of a time delay for re-energization and for low voltage protection. The system is mounted on a circuit board and encased in potting material which also locks the two housing parts together. A miswiring feature is also provided to prevent connecting line voltage to the control circuit or sensor terminals.

摘要翻译： 电子电动机保护系统被示出具有可用于多电压供应的电源并且提供由各种故障条件引起的过温条件的保护。 该系统还具有延时重新通电和低电压保护的可选功能。 该系统安装在电路板上并封装在灌封材料中，该灌封材料也将两个壳体部件锁定在一起。 还提供了误接线功能，以防止将线路电压连接到控制电路或传感器端子。

公开(公告)号：US5570257A

公开(公告)日：1996-10-29

申请号：US176754

申请日：1994-01-03

申请人： William R. Manning ,  Mark C. Carlos ,  Stanley J. Nacewicz

发明人： William R. Manning ,  Mark C. Carlos ,  Stanley J. Nacewicz

IPC分类号： H02H7/097 ,  H02H11/00 ,  H02P23/00 ,  H02H3/26

CPC分类号： H02H11/004 ,  H02H7/097

摘要： A phase sequence protection circuit is shown in which first and second resistors (R1, R2) and a first capacitor (C1) all having equivalent impedance are connected in a Y configuration and coupled to power source leads (A, C, B) of a three phase power supply, resistor R1 being coupled to phase A, capacitor C1 to phase B and resistor R2 to phase C. A comparator network (12) is connected in line with the first resistor (R1) and, in one embodiment will cause a solid state switch (Q1) to conduct when the phases are out of sequence. In a second embodiment a buffer portion (COMP2) is provided to add switching hysteresis which also reverses the switching logic causing the solid state switch (Q1) to conduct when the phases are in sequence. In another embodiment the comparator network (12") is provided with the buffer portion (COMP2) for switching hysteresis and arranged to cause the solid state switch (Q1) to conduct when the phases are out of sequence. An opto-isolator (14) interfaces with the comparator network (12, 12', 12") to provide isolation. The signal from the opto-isolator in comparator network (12') controls the energization of a second solid state switch (Q2) and a relay coil (K1) used to energize a load.

摘要翻译： 示出了相序保护电路，其中具有等效阻抗的第一和第二电阻器（R1，R2）和第一电容器（C1）以Y构型连接并耦合到电源引线（A，C，B） 三相电源，电阻器R1耦合到相位A，电容器C1到相位B，电阻器R2耦合到相位C.比较器网络（12）与第一电阻器（R1）一致连接，并且在一个实施例中将引起 固态开关（Q1）在相位不合格时进行。 在第二实施例中，提供缓冲器部分（COMP2）以增加开关滞后，其也使得开关逻辑反转，导致固态开关（Q1）在相位依次时导通。 在另一个实施例中，比较器网络（12“）设置有用于切换滞后的缓冲部分（COMP2），并且被布置成当相位失效时导致固态开关（Q1）导通。 光隔离器（14）与比较器网络（12,12'，12“）接口以提供隔离。 来自比较器网络（12'）中的光隔离器的信号控制用于激励负载的第二固态开关（Q2）和继电器线圈（K1）的通电。