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    • 1. 发明授权
    • Interface between programmable electronically commutated motor and
personal computer and method of operation
    • 可编程电子换向电机和个人计算机之间的接口和操作方法
    • US5473229A
    • 1995-12-05
    • US421291
    • 1995-04-13
    • William R. ArcherRoger C. BecerraBrian L. BeifusKenneth E. Zick
    • William R. ArcherRoger C. BecerraBrian L. BeifusKenneth E. Zick
    • F24F11/00H02P6/08H02B7/00
    • F24F11/0009H02P6/085F24F11/0012F24F2011/0046
    • A microcontroller with external memory interacts with a host computer or terminal via a fully isolated RS232 serial interface. An eight-bit D/A converter transforms signals generated digitally in the microcontroller. The low level analog signal at the D/A output is further amplified in a power amplifier which supplies a signal to the motor terminals of the motor to be programmed via solid state relays. The solid state relays form an array of switches which are selectively closed by a low level digit signal generated by the microcontroller and processed by digital circuits. Four signals may be modulated with a signal representing the line frequency and are used specifically in an emulation mode. The interface receives multi-function feedback signals (RPM) from the motor such as speed, memory, content, and diagnostic information. Comparators provide an integrity check of the connections (cable) and the input section of the motor (optocouplers). The comparators compare voltages and currents of a selected motor signal against pre-defined threshold levels.
    • 具有外部存储器的微控制器通过完全隔离的RS232串行接口与主机或终端进行交互。 8位D / A转换器转换微控制器中数字生成的信号。 D / A输出端的低电平模拟信号在功率放大器中进一步放大,该功率放大器通过固态继电器向要被编程的电动机的电动机端子提供信号。 固态继电器形成一组开关,其由微控制器产生的并由数字电路处理的低电平数字信号选择性地闭合。 可以用表示线路频率的信号调制四个信号,并且在仿真模式中具体使用。 该接口从电机接收多功能反馈信号(RPM),如速度,内存,内容和诊断信息。 比较器提供连接(电缆)和电机输入部分(光耦合器)的完整性检查。 比较器将所选电机信号的电压和电流与预定义的阈值电平进行比较。
    • 10. 发明授权
    • Electronic control circuit, electronically commutated motor system and
method for controlling same, laundry apparatus, and methods for
operating apparatus for switching high voltage DC and for controlling
electrical load powering apparatus
    • 电子控制电路,电子换向电动机系统及其控制方法,洗衣设备以及用于切换高压DC并用于控制电力负荷供电装置的操作装置的方法
    • US4686436A
    • 1987-08-11
    • US628224
    • 1984-07-06
    • William R. Archer
    • William R. Archer
    • D06F37/30H02P6/08H02P6/02
    • H02P6/085D06F37/304Y02B40/52
    • Electrical load powering apparatus has a load connection, a high voltage supply connection and a common, and includes electronic means for switching the high voltage supply connection to the load connection. The electronic switching means has an input and is responsive to a control voltage difference between the input and the load connection. The load connection is subject to high voltage excursions relative to the common due to the switching. An electronic control circuit for use in the electrical load powering apparatus includes a circuit having an active device for providing at least one pulse output relative to common and having at least one inherent capacitance. A circuit connected to the load connection inverts the pulse output of the circuit having the active device to produce the control voltage difference between the electronic switching means input and the load connection. An additional circuit charges the inherent capacitance of the circuit having the active device when one of the high voltage excursions occurs. An electronically commutated motor system, a regulated power supply and laundry apparatus utilizing the electronic control circuit are set forth. Methods for controlling the motor system, for operating apparatus for switching high voltage DC and for controlling electrical load powering apparatus generally are also described.
    • 电力负载供电装置具有负载连接,高压供电连接和公共电源,并且包括用于将高压电源连接切换到负载连接的电子装置。 电子开关装置具有输入并响应输入和负载连接之间的控制电压差。 由于切换,负载连接相对于公共端接受高电压偏移。 一种用于电力负载供电设备的电子控制电路包括具有有源器件的电路,用于相对于公共端提供至少一个脉冲输出并具有至少一个固有电容。 连接到负载连接的电路使具有有源器件的电路的脉冲输出反相,以产生电子开关装置输入和负载连接之间的控制电压差。 当发生高电压偏移之一时,附加电路对具有有源器件的电路的固有电容进行充电。 阐述了电子换向马达系统,利用电子控制电路的稳压电源和洗衣设备。 还描述了用于控制电动机系统,用于开关高压DC的操作装置和用于控制电力负载供电装置的方法。