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公开(公告)号：US06888328B2
公开(公告)日：2005-05-03
申请号：US10225840
申请日：2002-08-22
申请人： John Makaran
发明人： John Makaran
CPC分类号： H02P6/08
摘要： A circuit 100 for a five phase DC brushless motor includes a first coil A and a first primary switch S1 for controlling current through the first coil; a second coil B and a second primary switch S3 for controlling current through the second coil; a third coil C and a third primary switch S5 for controlling current through the third coil; a fourth coil D and a fourth primary switch S7 for controlling current through the fourth coil; a fifth coil E and a fifth primary switch S9 for controlling current through the fifth coil. The first coil A is arranged to have a polarity of back EMF opposite of that of the third coil C; the second coil B is arranged to have a polarity of back EMF opposite of that of the fourth coil D; the third coil C is arranged to have a polarity of back EMF opposite of that of the fifth coil E, the fourth coil D is arranged to have a polarity of back EMF opposite of that of the first coil A; and the fifth coil E is arranged to have a polarity of back EMF opposite of that of the second coil B. The circuit further includes a first freewheeling current conducting switch S2 and a diode A between the first coil and the third coil; a second freewheeling current conducting switch S4 and a diode between the second coil and the fourth coil; a third freewheeling current conducing switch S6 and a diode between the third coil and the fifth coil; a fourth freewheeling current conducting switch S8 and a diode between the fourth coil and the first coil, and a fifth freewheeling current conducting switch S10 and diode between the fifth coil and the second coil.
摘要翻译： 用于五相DC无刷电动机的电路100包括：第一线圈A和用于控制通过第一线圈的电流的第一初级开关S1; 第二线圈B和第二初级开关S 3，用于控制通过第二线圈的电流; 第三线圈C和第三初级开关S 5，用于控制通过第三线圈的电流; 用于控制通过第四线圈的电流的第四线圈D和第四初级开关S 7; 第五线圈E和第五一次开关S 9，用于控制通过第五线圈的电流。 第一线圈A被布置成具有与第三线圈C相反的反电动势的极性; 第二线圈B被布置成具有与第四线圈D相反的反电动势的极性; 第三线圈C被布置为具有与第五线圈E相反的反电动势的极性，第四线圈D被布置成具有与第一线圈A的极性相反的反电动势的极性; 并且第五线圈E被布置为具有与第二线圈B相反的反电动势的极性。该电路还包括第一线圈和第三线圈之间的第一续流电流导通开关S2和二极管A. 第二续流电流导通开关S 4和第二线圈与第四线圈之间的二极管; 第三续流电流导通开关S 6和第三线圈与第五线圈之间的二极管; 第四续流电流导通开关S8和第四线圈与第一线圈之间的二极管，以及第五绕组电流导通开关S10和第五线圈与第二线圈之间的二极管。
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公开(公告)号：US5923141A
公开(公告)日：1999-07-13
申请号：US833709
申请日：1997-04-09
申请人： Paul M. McHugh
发明人： Paul M. McHugh
CPC分类号： H02P25/0925
摘要： A current control circuit for a switched reluctance machine provides corner shaping at the end of the active conduction period of a phase in which the phase winding is energized. The pulse width modulated firing pulses are gradually reduced in duty cycle so that the transition between the current in the winding in the active period and the decay of current in a ramp down period is smoothed to reduce the forces leading to vibration and acoustic noise.
摘要翻译： 用于开关磁阻电机的电流控制电路在相绕组通电的相的有源导通周期结束时提供拐角整形。 脉冲宽度调制的点火脉冲在占空比中逐渐减小，使得在有效周期中的绕组中的电流与斜坡下降周期中的电流衰减之间的转变被平滑以减少导致振动和声学噪声的力。
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公开(公告)号：US5428281A
公开(公告)日：1995-06-27
申请号：US152670
申请日：1993-11-16
申请人： Kunio Seki , Yuichi Ohkubo
发明人： Kunio Seki , Yuichi Ohkubo
CPC分类号： H02P6/08
摘要： A semiconductor integrated circuit device incorporates a voltage step-up (boost) circuit which produces a stepped-up (boosted) voltage higher than the power voltage based on a periodic pulse signal generated internally or supplied from the outside. The stepped-up voltage is supplied to the emitter of a pnp driving transistor that produces a drive current for the output transistor on the voltage source side which is the one of a pair of npn output transistors in push-pull configuration. The voltage step-up circuit has its current supply capacity varied in response to the current flowing through the output transistor or driving transistor.
摘要翻译： 半导体集成电路装置包括升压（升压）电路，其基于内部产生的或从外部供应的周期性脉冲信号产生比电源电压高的升压（升压）电压。 升压电压被提供给pnp驱动晶体管的发射极，该pnp驱动晶体管产生用于推挽配置的一对npn输出晶体管中的一个的电压源侧的输出晶体管的驱动电流。 电压升压电路的电流供应容量随流过输出晶体管或驱动晶体管的电流而变化。
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公开(公告)号：US5378967A
公开(公告)日：1995-01-03
申请号：US54865
申请日：1993-04-29
申请人： Hayato Naito
发明人： Hayato Naito
CPC分类号： H02P6/10
摘要： The negative temperature dependency of the torque ripple correction capability of a known drive circuit is offset by making the amplitude of input voltage signals applied to a m-differential amplifier of the drive circuit positively temperature-dependent to improve the overall torque ripple correction capability of the circuit so that deteriorated torque ripples at low temperature and increase in the level of reactive currents at high temperature may be effectively eliminated. Moreover, since temperature induced deformation of waveforms of electric currents to be carried to soft switching coils of the drive circuit is minimized, a too rapid switching speed at low temperature is avoided to suppress generation of electric as well as mechanical noises, while too dull waveforms of electric currents at high temperature are also eliminated.
摘要翻译： 已知的驱动电路的转矩纹波校正能力的负温度依赖性通过使驱动电路的微分放大器的输入电压信号的幅值为正温度依赖性来提高总扭矩波动校正能力而被抵消 电路，从而可以有效地消除在低温下劣化的转矩波动和高温下的无功电流水平的增加。 此外，由于驱动电路的软开关线圈的电流波形的温度诱导变形被最小化，因此避免了在低温下的太快的开关速度以抑制电和机械噪声的产生，而太暗的波形 也消除了高温电流。
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公开(公告)号：US5363024A
公开(公告)日：1994-11-08
申请号：US950222
申请日：1992-09-24
申请人： Yoshiaki Hiratsuka , Tsutomu Yoshii
发明人： Yoshiaki Hiratsuka , Tsutomu Yoshii
CPC分类号： H02P6/08 , G05D23/1906 , G05D23/24 , Y10S388/903 , Y10S388/934
摘要： A control circuit for controlling a linearly variable speed cooling D.C. fan includes a stator including at least two pairs of main poles, two pairs of auxiliary poles and a Hall effect element provided at either of auxiliary poles. The control circuit also includes a rotor which as a casing, at least two pairs of N and S poles and a plurality of blades. Further, the control circuit includes a driving IC including an amplifier and two switching transistors, a temperature sensor detachable to a connector means, for determining a revolution speed of the D.C. fan that matches to the detected temperature, and a breakdown protection unit provided between said driving IC and said temperature sensor.
摘要翻译： 用于控制线性可变速度冷却风扇的控制电路包括：定子，其包括设置在辅助极中的至少两对主极，两对辅助极和霍尔效应元件。 控制电路还包括作为外壳的至少两对N极和S极和多个叶片的转子。 此外，控制电路包括具有放大器和两个开关晶体管的驱动IC，可拆卸到连接器装置的温度传感器，用于确定与检测到的温度相匹配的直流风扇的转速;以及击穿保护单元，设置在所述 驱动IC和温度传感器。
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6.发明授权Method for suppressing current peaks during commutation of a brushless direct-current motor 失效用于在无刷直流电动机换向期间抑制电流峰值的方法
公开(公告)号：US5361021A
公开(公告)日：1994-11-01
申请号：US912051
申请日：1992-07-07
申请人： Helmut Meyer , Kai Albrecht , Jurgen Seeberger
发明人： Helmut Meyer , Kai Albrecht , Jurgen Seeberger
CPC分类号： G01R31/343 , H02P6/15 , H02P6/28
摘要： A method for suppressing current peaks occurring during commutation in phase windings of a brushless direct-current motor, including supplying the phase windings via an indirect direct-current converter with rectangular current having an actual value measured exclusively in a direct-current link of the converter (single-current measurement), and delaying current buildup in the phase winding by a time period t.sub.v with respect to a current decay.
摘要翻译： 一种用于抑制在无刷直流电动机的相绕组中的换向期间发生的电流峰值的方法，包括通过间接直流电流转换器提供相位绕组，该矩形电流具有仅在转换器的直流链路中测量的实际值 （单电流测量），并相对于电流衰减将相绕组中的电流积累延迟一段时间tv。
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7.发明授权Method and circuit arrangement for sensor-less detection of the rotational angle of a damper-less synchronous machine, preferably excited by a permanent magnet, and supplied by a rectifier 失效用于无传感器检测无阻尼同步电机的旋转角度的方法和电路装置，优选地由永磁体激励，并由整流器
公开(公告)号：US5339012A
公开(公告)日：1994-08-16
申请号：US966061
申请日：1993-02-11
申请人： Manfred Schroedl , Thomas Stefan
发明人： Manfred Schroedl , Thomas Stefan
摘要： A method and circuit arrangement for the sensor-less detection of the angle of rotation of a synchronous machine without a damper is disclosed. According to the disclosed method and circuit arrangement, measuring signals are used which correspond to voltage jumps or pulses generated by a rectifier and the measuring data obtained are provided to a calculating device which calculates the position of the rotor from the dependence of the stator reactance, whereby premagnetization is set when the synchronous machine is started and a measurement is made on each field weakening and strengthening effect. The advantage of the invention resides in both its high precision and the fact that no additional analog current sources are needed to locate the magnet wheel. In addition, the magnet wheel can be located at any load.
摘要翻译： PCT No.PCT / AT91 / 00081 Sec。 371日期：1993年2月11日 102（e）日期1993年2月11日PCT PCT 1991年7月2日PCT公布。 第WO92 / 01331号公报 日本1992年1月23日。公开了一种用于无阻尼器的同步电机的无传感器检测角度的方法和电路装置。 根据所公开的方法和电路装置，使用对应于由整流器产生的电压跳变或脉冲的测量信号，并且将获得的测量数据提供给计算装置，该计算装置根据定子电抗的依赖性来计算转子的位置， 由此在同步电机启动时设定预磁化，并对每个磁场削弱强化效果进行测量。 本发明的优点在于其高精度和不需要额外的模拟电流源来定位磁轮的事实。 此外，磁轮可以位于任何负载。
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公开(公告)号：US5327052A
公开(公告)日：1994-07-05
申请号：US857963
申请日：1992-03-26
CPC分类号： H02P6/20
摘要： When a brushless DC (direct current) motor is started to rotate a rotor, a normal current value is set and then a motor drive current corresponding to the set normal current value is supplied to the brushless DC motor. If the brushless DC motor is not started by this motor drive current, the current value to be set is increased at a desired rate, and a motor drive current corresponding to the increased current value is supplied to the brushless DC motor. That is, the motor drive current corresponding to the current value increased at a desired rate is sequentially supplied to the brushless DC motor until the brushless DC motor has started.
摘要翻译： 当开始无刷DC（直流）电动机转动转子时，设定正常电流值，然后将与设定的正常电流值对应的电动机驱动电流提供给无刷直流电动机。 如果通过该电动机驱动电流不起动无刷直流电动机，则要设定的电流值以期望的速率增加，并且与增加的电流值相对应的电动机驱动电流被提供给无刷直流电动机。 也就是说，对应于以所需速率增加的电流值的电动机驱动电流被顺序提供给无刷直流电动机，直到无刷直流电动机起动为止。
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公开(公告)号：US5317244A
公开(公告)日：1994-05-31
申请号：US924618
申请日：1992-08-06
申请人： Takuro Ishikura
发明人： Takuro Ishikura
摘要： A motor control unit having an anti-burning device is provided which includes a rotation detection device for detecting whether the rotational speed of a given motor is below a predetermined level, a power supply limiting device for limiting the time of supplying current to the motor according to its rotational speed when the speed has been detected by the rotation speed detection device to be below the predetermined level. Thereby, the motor is prevented from burning, deteriorating in performance or shortening in life when the motor is overloaded. Also, the rotation detection device detects the condition when the motor is not rotating, and a cyclic power supply device for supplying current at a given cycle when the motor has been found to be not rotating by the aforementioned rotation detection device. Thereby, if the motor has been locked under an overload condition the motor can be readily restarted automatically when the load has been relieved.
摘要翻译： 本发明提供一种具有防燃装置的电动机控制装置，其具有用于检测给定电动机的转速是否低于预定水平的旋转检测装置，用于限制向电动机供给电流的时间的电源限制装置， 当转速检测装置检测到转速低于预定值时，转速。 由此，电动机过载时，能够防止电动机的燃烧，性能劣化或寿命缩短。 此外，旋转检测装置检测电动机不旋转时的状态，以及循环电源装置，当发现电动机不被上述旋转检测装置旋转时，以给定的周期供给电流。 因此，如果电动机在过载状态下被锁定，则当负载被释放时，可以自动地重新启动电动机。
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10.发明授权Automatic adjustment of commutation delay for brushless DC motor for improved efficiency 失效自动调整无刷直流电机的换向延迟，提高效率
公开(公告)号：US5285135A
公开(公告)日：1994-02-08
申请号：US949732
申请日：1992-09-23
摘要： A circuit and method are provided for automatically adjusting a commutation delay from events indicating a position of a polyphase dc motor. The circuit includes a driver to supply drive current to selected stator coils of said motor. A sequencer is connected to control the driver to apply drive current to selected motor coils to rotate the motor. Motor position detecting circuitry is connected to detect the events indicating the position of the motor. A commutation delay circuit is connected to increment the sequencer in response to the detection of the events indicating the position of the motor detected by the motor position detecting circuitry. A circuit for adjusting the delay of said commutation delay circuit between each event and each sequencer commutation provides optimum motor commutation for maximum power efficiency.According to the method, drive current is supplied to selected stator coils of said motor in predetermined commutated sequences to rotate the motor. Events are detected indicating the position of the motor, and the delay between each position indicating event and each commutation sequence is automatically adjusted to provide optimum motor commutation for maximum power efficiency.
摘要翻译： 提供一种电路和方法，用于根据指示多相直流电动机的位置的事件自动调整换向延迟。 电路包括驱动器，用于向所述电动机的选定的定子线圈提供驱动电流。 连接定序器以控制驱动器，以将驱动电流施加到所选择的电动机线圈以使电动机旋转。 电机位置检测电路被连接以检测指示电机位置的事件。 连接换向延迟电路以响应于检测到由电动机位置检测电路检测到的电动机的位置的事件的检测来增加定序器。 用于调整每个事件和每个定序器换向之间的所述换向延迟电路的延迟的电路为最大功率效率提供最佳的电机换向。 根据该方法，以预定的整流顺序将驱动电流提供给所述电动机的选定定子线圈，以使电动机旋转。 检测到指示电机的位置的事件，并且自动调整每个位置指示事件和每个换向顺序之间的延迟，以提供最佳的电动机换向以实现最大功率效率。
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