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1. 发明授权

US06346790B1 Induction motor system with an induction motor and an electrically isolated voltage modulation motor controller 失效
标题翻译：感应电机系统带有感应电机和电气隔离电压调节电机控制器
公开(公告)号：US06346790B1
公开(公告)日：2002-02-12
申请号：US09548047
申请日：2000-04-12
申请人： William Harry Kemp , Dale Andrew Van Spengen , Donald Morgan
发明人： William Harry Kemp , Dale Andrew Van Spengen , Donald Morgan
IPC分类号： H02P318
CPC分类号： H02P25/04
摘要： An induction motor system operable in a wet environment comprises an induction motor and an apparatus for controlling the speed of the motor. The motor is adapted to be coupled to an AC source for supplying an AC signal. The motor includes a rotor having rotor laminations. The reflected rotor resistance over reflected rotor reactance ratio of the motor is adjusted to be greater than one. The controlling apparatus includes a switching device, user controls, controller means and isolation means. The switching device is connected in series with the motor and is operative in either a high impedance state wherein significant current flow through the motor is prevented or a low impedance state wherein current flow through the motor is substantially undisturbed. The user controls provide motor speed input signals. The controller means receives the motor speed input signals from the user controls, and switches the switching device between its low and high impedance states in a predetermined sequence for inducing a phase angle delay in the AC signal. The isolation means electrically isolates the controller means from the AC source and includes coupling means for optically coupling the switching device to the controller means.
摘要翻译：在潮湿环境中可操作的感应电动机系统包括感应电动机和用于控制电动机速度的装置。电动机适于耦合到用于提供AC信号的AC电源。电动机包括具有转子叠片的转子。电机反射转子电抗比反映的转子电抗比被调整为大于1。控制装置包括开关装置，用户控制装置，控制装置和隔离装置。开关装置与电动机串联连接，并且在高阻抗状态下工作，其中防止电流流过电动机的大量电流或其中电流流过电动机的电流基本上不受干扰的低阻抗状态。用户控制提供电机速度输入信号。控制器装置从用户控制器接收电动机速度输入信号，并以预定的顺序将开关装置切换在其低阻抗状态和高阻态之间，以引起AC信号中的相位角延迟。隔离装置将控制器装置与AC源电隔离，并且包括用于将开关装置光耦合到控制器装置的耦合装置。

2. 发明授权

US06847291B2 Apparatus for detection of water level and temperature in a bathing appliance 有权
标题翻译：用于检测沐浴器具中的水位和温度的装置
公开(公告)号：US06847291B2
公开(公告)日：2005-01-25
申请号：US10011396
申请日：2001-12-11
申请人： William Harry Kemp
发明人： William Harry Kemp
IPC分类号： G01F23/26 , G08B19/00
CPC分类号： G01F23/265
摘要： An apparatus operable in a wet environment for detecting the presence or absence of water in a non-conductive vessel, by measuring changes in dielectric constant and detecting the temperature of water in same vessel. A conductive element coupled to a sensing and switching means, transmits data to the controller, resulting from a change of dielectric constant at the conductive element. A temperature sensor detects and transmits temperature signals to the controller. A controller means receives data, from the dielectric constant sensor means and temperature data from the temperature sensor. Includes a coupling means which transmits data from the controller to an external device. The isolation means electrically isolates the conductive element and temperature sensor means from the water contained in a non-conductive vessel.
摘要翻译：通过测量介电常数的变化和检测同一容器中的水的温度，可在湿环境中操作的装置，用于检测非导电容器中水的存在或不存在。耦合到感测和切换装置的导电元件由于导电元件的介电常数的变化而将数据传输到控制器。温度传感器检测并传送温度信号给控制器。控制器装置从介电常数传感器装置接收数据，并从温度传感器接收温度数据。包括将数据从控制器传输到外部设备的耦合装置。隔离装置将导电元件和温度传感器装置与包含在非导电容器中的水电隔离。

3. 发明授权

US5734248A Current modulation motor controller 失效
标题翻译：电流调制电机控制器
公开(公告)号：US5734248A
公开(公告)日：1998-03-31
申请号：US870677
申请日：1997-06-06
申请人： William Harry Kemp , Victor Joseph Shideler
发明人： William Harry Kemp , Victor Joseph Shideler
IPC分类号： H02P1/42 , H02P27/02 , H02P7/36
CPC分类号： H02P1/42 , H02P27/02
摘要： An apparatus for controlling the speed of an induction motor includes a first winding and a second winding. The first winding and second winding are adapted to be coupled to an AC source for supplying an AC input signal. A first switching device is coupled to the first winding and a second switching device is coupled to the second winding. Each of the switching devices is operative in a low impedance state enabling current to flow through the associated winding of each switching device and a high impedance state preventing significant current flow through the associated winding of each switching device. A controller switches each of the switching devices from the high impedance state to the low impedance state in a sequence for controlling the current in the windings, which induces a phase shift between the AC voltages across the windings.
摘要翻译：用于控制感应电动机的速度的装置包括第一绕组和第二绕组。第一绕组和第二绕组适于耦合到用于提供AC输入信号的AC源。第一开关装置耦合到第一绕组，而第二开关装置耦合到第二绕组。每个开关装置在低阻抗状态下工作，使得电流流过每个开关装置的相关联的绕组，并且阻止高阻抗状态阻止大量电流流过每个开关装置的相关绕组。控制器将每个开关器件从高阻抗状态切换到低阻抗状态，以控制绕组中的电流，从而引起绕组之间的交流电压之间的相移。

4. 发明授权

US5672950A Voltage, phase and frequency control by miniature inverter system 失效
标题翻译：微型逆变器系统的电压，相位和频率控制
公开(公告)号：US5672950A
公开(公告)日：1997-09-30
申请号：US291239
申请日：1994-08-16
申请人： William Harry Kemp , Victor Joseph Shideler
发明人： William Harry Kemp , Victor Joseph Shideler
IPC分类号： H02M5/257 , H02P27/16 , H02P5/34
CPC分类号： H02M5/2576 , H02P27/16
摘要： A power supply for a variable speed AC motor includes a waveform generator for generating a periodic pulsed waveform according to a desired motor speed, an adjustable source of DC potential, and an inverter coupled to the waveform generator and to the source of DC potential. The inverter provides an AC pulse train to the AC motor, the pulse train having waveform characteristics according to the pulsed waveform generated by the waveform generator to obtain the desired speed. The voltage amplitude of the pulse train provided to the motor is proportional to the DC potential whereby motor currents can be controlled at the desired motor speed by varying the DC potential.
摘要翻译：用于变速AC电动机的电源包括：波形发生器，用于根据期望的电动机速度产生周期性脉冲波形，可调节直流电源，以及耦合到波形发生器和DC电源的逆变器。逆变器为交流电动机提供交流脉冲串，脉冲串具有根据波形发生器产生的脉冲波形的波形特性，以获得所需的速度。提供给电动机的脉冲串的电压幅度与DC电位成比例，由此通过改变DC电位可以将电机电流控制在所需的电机速度。

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