公开(公告)号：US5302885A

公开(公告)日：1994-04-12

申请号：US827206

申请日：1992-01-29

申请人： Marcos G. Schwarz ,  Egidio Berwanger

发明人： Marcos G. Schwarz ,  Egidio Berwanger

IPC分类号： H02P1/42 ,  H02P1/44

CPC分类号： H02P1/42 ,  H02P1/44

摘要： A starting device for a single phase induction motor, of the type having a cage type rotor and a stator having at least one main coil and one starting coil, which is connected in series with first and second terminals of an alternating current source. The starting device comprises a relay (RL) having at least one contact, with one of the terminals thereof being connected to the first terminal (1) of the alternating current source (F), while the other terminal of said contact is connected to the terminal of the starting coil (L2); and a coil (B) for actuating the relay; an electronic timer circuit (T), which is connected to the terminals of the coil (B) for actuating the relay (RL), in order to open the contact of the latter by supplying a current to the coil (B) thereof, thereby finishing the starting operation of the motor (M), after a period of time has elapsed from the motor (M) powering up. In case the motor includes a permanent capacitor (CP), said capacitor will be connected in series with a starting coil (L2) between the terminal of the latter and the first terminal ( 1) of the alternating current source.

摘要翻译： 一种用于单相感应电动机的起动装置，具有保持架式转子和具有至少一个主线圈和一个起动线圈的类型的定子，其与交流电源的第一和第二端子串联连接。 启动装置包括具有至少一个触点的继电器（RL），其中一个端子连接到交流电源（F）的第一端子（1），而所述触点的另一个端子连接到 端子（L2）; 和用于致动继电器的线圈（B）; 电子定时器电路（T），其连接到用于致动继电器（RL）的线圈（B）的端子，以便通过向其线圈（B）提供电流来打开它的接触，从而 在从电动机（M）通电一段时间后，完成电机（M）的启动操作。 在电动机包括永久电容器（CP）的情况下，所述电容器将与后者的端子和交流电源的第一端子（1）之间的起动线圈（L2）串联连接。

公开(公告)号：US5488834A

公开(公告)日：1996-02-06

申请号：US225373

申请日：1994-04-08

申请人： Marcos G. Schwarz

发明人： Marcos G. Schwarz

IPC分类号： F25B49/02 ,  H02H7/08

CPC分类号： H02H7/08 ,  F25B49/025

摘要： Control circuit for a refrigerating system, used in hermetic compressors, comprising first and second temperature sensors (61,62) and a current sensor (63) for the current drawn by the motor, said control circuit including a central processing unit (30), which instructs at least the selective closing of first and second driving switches (40,50), which are respectively connected with a main winding (11) and with a starting winding (12) of an electric motor (10), when the first temperature sensor (61) detects a temperature inside the refrigerating cabinet corresponding to a maximum value of an ideal temperature interval, previously informed to the central processing unit (30), the temperature of the motor (10) and the current drawn by said motor (10) being within their respective ideal operative values, previously informed to said central processing unit (30).

摘要翻译： 用于封闭式压缩机的制冷系统的控制电路包括第一和第二温度传感器（61,62）和用于由电动机吸取的电流的电流传感器（63），所述控制电路包括一个中央处理单元（30） 其指示在第一温度和第二温度下选择性地关闭分别与主绕组（11）和电动机（10）的起动绕组（12）连接的第一和第二驱动开关（40,50） 传感器（61）根据预先通知给中央处理单元（30）的电动机（10）的温度和由所述电动机（10）吸出的电流来检测冷藏柜内部的温度，该温度与理想温度区间的最大值相对应， ）处于其相应的理想操作值内，先前通知所述中央处理单元（30）。

公开(公告)号：US4978895A

公开(公告)日：1990-12-18

申请号：US421605

申请日：1989-10-16

申请人： Marcos G. Schwarz

发明人： Marcos G. Schwarz

IPC分类号： H02P6/18

CPC分类号： H02P6/18

摘要： An electronic control circuit for brushless direct current motor, of the type having a coiled stator and a permanent magnet rotor, with an inverter circuit (10) feeding current to stator coils (21, 22, 23). A rotor-stator relative position detecting circuit (30) and a central controller (70) processes current information fed by the inverter (10), on the reference speed and the relative rotor-stator position, and sends command signals to inverter (10). The detecting circuit (30) has low pass filters (1, 2, 3) connected to terminals (.0..sub.1, .0..sub.2, .0..sub.3) for supplying current to the motor coils, and with the output (F.sub.1, F.sub.2, F.sub.3) of each low pass filter being connected to the noninverting input of a corresponding voltage comparator (59, 60, 61) through a capacitor (56). The inverting input (M.sub.1, M.sub.2, M.sub.3) of each voltage comparator (59, 60, 61) receives the output of AC corresponding filter through a capacitor (56) which causes a phase delay and also through a resistor (54) of an integrating resistor circuit interconnected at a common point (M). The detecting circuit (30) further comprises another resistor circuit (55) which connects said point (M) to each inverting input of the voltage comparators.

摘要翻译： 一种具有线圈定子和永磁转子的无刷直流电动机的电子控制电路，具有向定子线圈（21,22,23）供电的逆变器电路（10）。 转子 - 定子相对位置检测电路（30）和中央控制器（70）以参考速度和相对转子 - 定子位置处理由逆变器（10）馈送的电流信息，并向逆变器（10）发送命令信号， 。 检测电路（30）具有连接到用于向电机线圈提供电流的端子（O1，O2，O3）的低通滤波器（1,2,3），并且每个低通的输出（F1，F2，F3） 滤波器通过电容器（56）连接到相应的电压比较器（59,60,61）的同相输入端。 每个电压比较器（59,60,61）的反相输入端（M1，M2，M3）通过电容器（56）接收AC相应滤波器的输出，该电容器引起相位延迟，并且还通过积分电阻器（54） 电阻电路在公共点（M）互连。 检测电路（30）还包括将所述点（M）连接到电压比较器的每个反相输入端的另一个电阻电路（55）。

公开(公告)号：US5510688A

公开(公告)日：1996-04-23

申请号：US251851

申请日：1994-05-31

申请人： Marcos G. Schwarz

发明人： Marcos G. Schwarz

IPC分类号： H02P6/08 ,  H02P6/34 ,  H02P5/34

CPC分类号： H02P6/085 ,  H02P6/34

摘要： Driving system and method for an electronically commutated multi-speed motor having a coiled stator and a rotor with at least one permanent magnet and having an electronic circuit that feeds voltage to the coils (1, 2, 3) of the stator according to a relative rotor position as sensed by a sensor mounted to the motor shaft, or by interpreting the voltages induced to the stator coils by the moving rotor. A voltage is supplied to an inverter circuit (10) whose output is applied to motor stator coils (1, 2, 3). The voltage applied to the inverter circuit is varied, making use of a speed switching circuit that can include a voltage multiplier or a voltage divider circuit and the variation of the inverter output voltage varies the motor speed.

摘要翻译： 一种具有线圈定子和具有至少一个永磁体的转子的电子换向多速电动机的驱动系统和方法，具有电子电路，该电子电路根据相对的方式将电压馈送到定子的线圈（1,2,3） 由安装到电动机轴的传感器感测的转子位置，或通过解释由移动转子感应到定子线圈的电压。 向输出施加到电动机定子线圈（1,2,3）的逆变器电路（10）供给电压。 施加到逆变器电路的电压是变化的，利用可以包括电压倍增器或分压器电路的速度切换电路，并且变频器输出电压的变化改变电动机速度。

公开(公告)号：US5051681A

公开(公告)日：1991-09-24

申请号：US615579

申请日：1990-11-19

申请人： Marcos G. Schwarz

发明人： Marcos G. Schwarz

IPC分类号： H02P1/42 ,  H02P1/44

CPC分类号： H02P1/44

摘要： An electronic circuit for starting a single phase induction motor operating from a source of alternating current, the motor having a cage type rotor, a coiled stator having at least a main winding and a starting winding, and a permanent capacitor connected in series with the starting winding. The permanent capacitor and the starting winding are connected in parallel to the alternating current source and the main winding in series. A TRIAC has a first terminal connected to one side of the alternating current source and a second terminal connected to the starting winding and to the permanent capacitor. A TRIAC trigger circuit is connected between the TRIAC second terminal and its GATE terminal and a bilateral swtich is connected to the TRIAC GATE terminal. A timer circuit is connected to the bilateral switch and to the alternating current source, the timer circuit defining the time elapsed from the motor powering up till the interruption of the TRIAC conduction by turning on the bilateral switch, the TRIAC trigger circuit repeatedly triggering the TRIAC to a turn on condition at the beginning of each current half-cycle while the bilateral switch remains cut off by the timer circuit.

摘要翻译： 一种用于启动从交流电源工作的单相感应电动机的电子电路，具有笼式转子的电动机，至少具有主绕组和起动绕组的线圈定子以及与起动器串联连接的永磁电动机 绕组。 永磁电容器和起动绕组与交流电源和主绕组串联连接。 TRIAC具有连接到交流电源的一侧的第一端子和连接到起动绕组和永久电容器的第二端子。 TRIAC触发电路连接在TRIAC第二终端和其GATE终端之间，双向交换机连接到TRIAC GATE终端。 定时器电路连接到双向开关和交流电源，定时器电路通过开启双向开关来定义从电机上电到TRIAC导通中断的时间，TRIAC触发电路反复触发TRIAC 在每个当前半周期开始时的开启状态，同时双向开关由定时器电路切断。

公开(公告)号：US5019756A

公开(公告)日：1991-05-28

申请号：US500143

申请日：1990-03-27

申请人： Marcos G. Schwarz

发明人： Marcos G. Schwarz

IPC分类号： H02P6/182 ,  H02P6/21

CPC分类号： H02P6/182 ,  H02P6/21

摘要： A method and electronic circuit for controlling a brushless direct current motor, the motor having stator coils and a rotor with permanent magnets, in which the rotor position is detected by induced voltages. A control circuit has an inverter for supplying current (I.sub.1, I.sub.2, I.sub.3) to the stator coils (1, 2, 3); a circuit detecting the relative position of the rotor-stator from the induced voltages; and a control circuit processing information (I.sub.m) of current being supplied by the inverter to the stator coils, reference speed (W.sub.ref) and on rotor position (P.sub.1, P.sub.2, PP.sub.3) by sending control signals (S1 to S6) to the inverter. The control circuit comprises a main logic circuit or digital memory, delay elements connected in series, a circuit controlling the supply of current to the motor, a circuit detecting the minimum speed limit of the motor, a circuit for converting the frequency/voltage, a voltage comparator circuit and a Proportional-Integral-Derivative circuit.

摘要翻译： 一种用于控制无刷直流电动机的方法和电子电路，具有定子线圈的电动机和具有永磁体的转子，其中通过感应电压检测转子位置。 控制电路具有向定子线圈（1,2,3）供给电流（I1，I2，I3）的逆变器。 检测转子 - 定子与感应电压的相对位置的电路​​; 以及通过向逆变器发送控制信号（S1〜S6），将控制电路处理由逆变器提供给定子线圈的电流的信息（Im），基准速度（Wref）和转子位置（P1，P2，PP3）。 控制电路包括主逻辑电路或数字存储器，串联连接的延迟元件，控制向电动机供电的电路，检测电动机最小限速的电路，转换频率/电压的电路 电压比较器电路和比例积分微分电路。

公开(公告)号：US4970872A

公开(公告)日：1990-11-20

申请号：US392026

申请日：1989-08-09

申请人： Egidio Berwanger ,  Marcos G. Schwarz

发明人： Egidio Berwanger ,  Marcos G. Schwarz

IPC分类号： F25B41/04 ,  H02J9/06

CPC分类号： H02J9/066 ,  F25B41/04

摘要： Blocking valve for refrigeration or air conditioning systems, of the type which includes: a hermetic compressor driven by an electric motor, a condenser, an evaporator, a capillary tube between the condenser and the evaporator, and a blocking valve between the condenser and the capillary tube. The blocking valve has a housing (42) defining an inside chamber with inlet and outlet passage in fluid communication with the condenser (31) and, respectively, with the capillary tube (32). A magnetic slide (41) installed in the chamber can be displaced between an opening position and a closure position of the valve. Electromagnetic elements (46, 47) assembled in the housing (42) are selectively and automatically energized during a period of time sufficient to cause the displacement of the slide (41) from one operating position to another in accordance with an operating condition of the system, the slide (41) being retained in its operating positions by action of non-electromagnetic forces.

摘要翻译： 用于制冷或空调系统的阻塞阀包括：由电动机驱动的封闭式压缩机，冷凝器，蒸发器，冷凝器和蒸发器之间的毛细管，以及冷凝器和毛细管之间的阻塞阀 管。 阻塞阀具有限定内室的壳体（42），其具有与冷凝器（31）流体连通的入口和出口通道，并且分别与毛细管（32）流体连通。 安装在腔室中的磁性滑块（41）可以在阀的打开位置和关闭位置之间移动。 组装在壳体（42）中的电磁元件（46,47）在足以导致滑块（41）根据系统的操作状态从一个操作位置移动到另一个操作位置的时间段期间被选择性地和自动地通电 ，滑动件（41）通过非电磁力的作用保持在其操作位置。