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公开(公告)号：US4931707A
公开(公告)日：1990-06-05
申请号：US393358
申请日：1989-08-14
IPC分类号： G05F1/656
CPC分类号： G05F1/656
摘要： The disclosure describes an impedance matching circuit for maintaining the input impedance, of a drive transistor as sensed by a driver circuit, substantially constant. The circuit is connected to the input of the drive transistor such that when the drive transistor is forward biased, the input impedance sensed by the drive circuit is the input impedance of the drive transistor, and when the drive transistor is reverse biased, the input impedance sensed by the driver circuit is the combination of the input impedance of the drive transistor and an impedance of the matching circuit.
摘要翻译： 本公开描述了一种阻抗匹配电路，用于维持由驱动器电路检测的驱动晶体管的输入阻抗基本上恒定。 该电路连接到驱动晶体管的输入端，使得当驱动晶体管被正向偏置时，由驱动电路感测的输入阻抗是驱动晶体管的输入阻抗，并且当驱动晶体管被反向偏置时，输入阻抗 由驱动电路感测的是驱动晶体管的输入阻抗和匹配电路的阻抗的组合。
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公开(公告)号：US4987351A
公开(公告)日：1991-01-22
申请号：US464056
申请日：1990-01-11
CPC分类号： H02P27/08 , H02P23/0077
摘要： An AC motor control based on an iterative computation of the motor load and method of accurately determining motor load. At the initiation of motor operation, the load term (%LOAD) is initialized to zero, and the motor is energized in accordance with a predetermined voltage and frequency schedule for producing motor rotation. During the starting interval the power loss term LOSSES and the load term (%LOAD) are iteratively computed as a function of the input voltage and current (V.sub.bus, I.sub.bus) and the motor inverter frequency (IF). When a predetermined motor speed has been achieved, the run mode is initiated. At this point, the load is known based on the iterative load calculations performed during starting, and the motor voltage and inverter frequency are scheduled as a function of motor speed and load. The iterative computation of losses and load continue during the run mode so that changes in the motor load are taken into account.
摘要翻译： 基于电机负载的迭代计算的交流电动机控制和精确确定电动机负载的方法。 在电机运行开始时，负载项（％LOAD）被初始化为零，并且电动机根据用于产生电动机旋转的预定电压和频率调度被激励。 在起动间隔期间，功率损耗项LOSSES和负载项（％LOAD）根据输入电压和电流（Vbus，Ibus）和电机逆变器频率（IF）的函数进行迭代计算。 当达到预定的电动机速度时，启动运行模式。 此时，负载根据启动期间的迭代负载计算而得知，电动机电压和逆变器频率作为电机转速和负载的函数进行调度。 损耗和负载的迭代计算在运行模式下继续运行，从而考虑到电机负载的变化。
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3.发明授权Current controlled full wave transitor bridge inverter for a multiple phase AC machine 失效用于多相交流电机的电流控制全波逆变桥逆变器
公开(公告)号：US5055762A
公开(公告)日：1991-10-08
申请号：US338821
申请日：1989-04-17
IPC分类号： H02M7/5387 , H02P23/00 , H02P27/08 , H03K17/0422 , H03K17/687 , H03K17/691
CPC分类号： H02P27/08 , H02M7/53875 , H02P23/0077 , H03K17/0422 , H03K17/6871 , H03K17/691
摘要： A multiple phase full wave motor drive transistor bridge inverter control circuit in which the base drive power supply for the transistors is transformer isolated from the on/off logic circuits, and the current control function for all of the inverter transistors is performed by a single current regulation circuit. A separate transformer is provided for each phase of the bridge inverter, and the transformer primaries are connected series to form the load of the current regulation circuit. The transformer secondaries supply base current to the upper and lower transistors of each respective phase, and the logic circuits schedule the conduction of the inverter transistors such that one transistor of each phase is always conductive, neglecting dead time. Each of the secondary circuits includes an impedance matching circuit to maintain balanced loading under conditions wherein the inverter transistors are reverse biased due to lagging power factor motor winding currents.
摘要翻译： 一种多相全波马达驱动晶体管桥式逆变器控制电路，其中用于晶体管的基极驱动电源与开/关逻辑电路隔离，并且用于所有逆变器晶体管的电流控制功能由单电流 调节电路。 为桥式逆变器的每相提供单独的变压器，并且变压器初级线串联连接以形成电流调节电路的负载。 变压器二次电源将基极电流提供给每个相位的上下晶体管，并且逻辑电路调度反相器晶体管的导通，使得每相的一个晶体管总是导通，忽略死区时间。 每个次级电路包括阻抗匹配电路，以在由于滞后的功率因数电动机绕组电流而使逆变器晶体管反向偏置的条件下保持平衡负载。
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公开(公告)号：US4970620A
公开(公告)日：1990-11-13
申请号：US397210
申请日：1989-08-23
IPC分类号： H03K17/0812 , H03K17/567
CPC分类号： H03K17/567 , H03K17/08122
摘要： An FET bridge protection circuit preventing shoot-through caused from both FETs being biased on at the same time, while also maximizing the frequency at which the bridge output can alternate between high and low is described.
摘要翻译： 描述了一种FET桥保护电路，其防止两个FET同时被偏置引起的穿通，同时还使桥输出可以在高电平和低电平之间交替的频率最大化。
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公开(公告)号：US4710685A
公开(公告)日：1987-12-01
申请号：US15321
申请日：1987-02-17
CPC分类号： H02H9/047 , H02H11/002 , H02P7/05
摘要： A power window control circuit for a motor vehicle includes a FET and SCR in series across the power supply with their junction connected to one side of a motor armature, the other side of the motor armature being switchable between power supply terminals. To provide reverse battery protection, no anti-parallel diode is provided around the SCR. The activation circuit for the FET includes a capacitor bootstrap circuit controlled by a switching transistor and a zener diode from the drain to the gate. When conduction from the switch through the motor and SCR is stopped, the inductive energy from the armature windings dissipates through the internal anti-parallel diode of the FET. When opposite conduction from the FET through the motor and switch is stopped, the inductive energy causes the voltage across the FET to rise to the zener voltage and turn on the FET sufficiently to dissipate it.
摘要翻译： 用于机动车辆的电动窗控制电路包括跨电源串联的FET和SCR，其连接到电动机电枢的一侧，电动机电枢的另一侧可在电源端子之间切换。 为了提供反向电池保护，SCR周围不提供反并联二极管。 用于FET的激活电路包括由开关晶体管控制的电容器自举电路和从漏极到栅极的齐纳二极管。 当开关通过电机和SCR的导通停止时，来自电枢绕组的感应能量通过FET的内部反并联二极管消散。 当通过电机和开关与FET相反导通停止时，感应能量会导致FET两端的电压上升到齐纳电压，并使FET充分耗散。
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公开(公告)号：US4665350A
公开(公告)日：1987-05-12
申请号：US825607
申请日：1986-01-31
摘要： The speed command for an open-loop brushless motor speed control system is overridden whenever the speed of the motor is less than a relatively low reference speed in order to quickly accelerate the motor to a running speed, despite a relatively low speed command. In the event of a motor overcurrent condition, the override is itself overridden to protect the controller.
摘要翻译： 只要电机的速度小于相对较低的基准速度，开环无刷电动机速度控制系统的速度指令就被覆盖，以便尽管速度相对较低，但也可以将电动机快速加速至运行速度。 在电机过电流情况下，超驰本身被覆盖以保护控制器。
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公开(公告)号：US4678972A
公开(公告)日：1987-07-07
申请号：US908730
申请日：1986-09-18
CPC分类号： H02P6/26
摘要： The stator winding of a single-phase brushless DC motor with symmetrical rotor and stator air gap geometry is comprised of two serially connected relatively displaced sections energized with a source of direct current in accordance with the rotary position of the motor rotor. In the run mode, the full winding is energized; in the start mode, one of the sections is momentarily short-circuited if the initial winding energization fails to produce sufficient torque for starting.
摘要翻译： 具有对称转子和定子气隙几何形状的单相无刷直流电动机的定子绕组包括根据电动机转子的旋转位置用直流电源供电的两个串联连接的相对位移部分。 在运行模式下，全绕组通电; 在启动模式下，如果初始绕组通电不能产生足够的启动转矩，则其中一个部分短暂地短路。
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公开(公告)号：US4575662A
公开(公告)日：1986-03-11
申请号：US674688
申请日：1984-11-26
申请人： Richard N. Lehnhoff
发明人： Richard N. Lehnhoff
CPC分类号： E05F15/695 , H02P7/04 , E05F15/41 , E05Y2900/55 , H02H7/0851
摘要： A control circuit for a one-touch vehicle window control uses a pair of switches, each switch actuating a still window for movement in one of two opposite directions but being effective to stop a window moving in the opposite direction from that which it initiates. The motor is in an H-switch bridge with SCRs and FETs, with each switch providing actuating signals to an SCR and FET for one armature current direction and further providing an actuating signal through an impedance to a discharge transistor connected across a capacitor connected to the gate of the FET for the opposite armature current direction. The base of each discharge transistor is connected to another capacitor and through another impedance to the junction of a FET and a motor armature terminal. Each connected pair of impedances forms a voltage divider to turn off a FET upon the detection of motor stall current therethrough; and the imepedances further act to ensure the non-conduction of the non-activated FET to prevent a short circuit of the power supply.
摘要翻译： 用于一触式车窗控制的控制电路使用一对开关，每个开关致动静止窗口以在两个相反方向中的一个方向上移动，但是有效地阻止窗口沿与其启动的方向相反的方向移动。 电动机处于具有SCR和FET的H型开关桥中，每个开关向一个电枢电流方向的SCR和FET提供致动信号，并且进一步通过一个阻抗将致动信号提供给连接到 FET的相对电枢电流方向的栅极。 每个放电晶体管的基极连接到另一个电容器，并通过另一个阻抗连接到FET和电机电枢端子的结。 每个连接的阻抗对形成分压器，以在检测到电动机失速电流时关闭FET; 并且其进一步的作用是确保非激活FET的非导通以防止电源短路。
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公开(公告)号：US4476416A
公开(公告)日：1984-10-09
申请号：US490314
申请日：1983-05-02
CPC分类号： E05F15/695 , E05Y2800/73 , E05Y2900/55
摘要： Power window control apparatus for a motor vehicle window includes a motor actuatable to drive the window toward a predetermined position, an operator controlled actuator effective only during actuation to actuate the motor, a further actuator effective upon actuation of the operator controlled actuator for a time intermediate first and second predetermined time periods to maintain actuation of the motor after deactivation of the operator controlled actuator and an automatic deactivator effective to stop the motor and deactivate the further actuator when the window reaches the predetermined position. The window thus moves under operator control for very short or long movements but can be set to move under automatic control by actuation of the single operator control for a specified intermediate time duration. The further actuator may be a capacitor charged during the actuation of the operator controlled actuator for the first predetermined time to a voltage sufficient to maintain a motor driving FET conducting and a latching switch across the capacitor effective to discharge the same when the voltage thereacross reaches a higher voltage in the second predetermined time period.
摘要翻译： 用于机动车辆窗户的电动车窗控制装置包括可致动以朝向预定位置驱动窗户的电动机，仅在致动期间有效地操作电动机的操作者控制的致动器，在致动操作者控制的致动器以有效地进行时间中间 第一和第二预定时间段，以在操作员控制的致动器停用之后维持电动机的致动，以及当窗口到达预定位置时有效地停止电动机并停用另外的致动器的自动停用器。 因此，窗口在操作员控制下移动非常短或长的移动，但是可以通过在单个操作者控制器的致动达到指定的中间持续时间来设置为在自动控制下移动。 另外的致动器可以是在操作者控制的致动器致动第一预定时间期间将充电的电容器充电到足以维持电动机驱动FET导通的电压和跨过电容器的闭锁开关，当电压跨越达到 在第二预定时间段内具有更高的电压。
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公开(公告)号：US3938022A
公开(公告)日：1976-02-10
申请号：US501024
申请日：1974-08-28
IPC分类号： H02M3/315
CPC分类号： H02M3/315
摘要： The terminal ends of a center tapped primary transformer winding are connected to the positive polarity direct current input terminal through the anode-cathode electrodes of respective power silicone controlled rectifiers which are alternately triggered conductive and the center tap is connected to the negative polarity direct current input terminal. Simultaneously with each power silicon controlled rectifier, a corresponding commutating capacitor charge circuit silicon controlled rectifier is triggered conductive to establish a charge circuit for the corresponding commutating capacitor across the direct current input terminals. Each power silicon controlled rectifier is commutated not conductive by the charge upon the corresponding commutating capacitor applied in an inverse polarity relationship across the anode-cathode electrodes thereof through a commutating silicon controlled rectifier. The transformer secondary winding output is rectified and filtered to supply a direct current potential to a connected load.
摘要翻译： 中心抽头一次变压器绕组的端子通过交替触发导电的各个功率有机硅控制整流器的阳极 - 阴极电极连接到正极性直流输入端子，中心抽头连接到负极性直流输入 终奌站。 与每个功率可控硅整流器同时，相应的整流电容器充电电路可控硅整流器被触发导通，以建立用于跨直流输入端子的相应换向电容器的充电电路。 每个功率可控硅整流器通过通过整流可硅可控整流器在其阳极 - 阴极电极之间以反极性关系施加的相应的换向电容器上的电荷换向不导通。 变压器次级绕组输出被整流和滤波，为连接的负载提供直流电势。
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