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公开(公告)号：US4663613A
公开(公告)日：1987-05-05
申请号：US757472
申请日：1985-07-22
CPC分类号： E04H4/129
摘要： A tub is supplied with hot water through a water circulation system including a pump, a water filter and an electric flow-through heater energized through an electric contactor upon closure thereof. A user of the tub is urged to service the water circulation system upon clogging thereof. For this purpose, water flow fluctuations occurring in the circulation system upon restriction of the water circulation system are sensed and closure of the contactor is precluded for a time interval of predetermined duration in response to a sensing of water flow fluctuations. That predetermined duration is made sufficiently short for a resumption of the heater energization through reclosure of the contactor if the fluctuations are only transient, but sufficiently long to effect the reduction of water temperature in the tub supplied through the heater by restricting reclosure of the contactor as long as the fluctuations continue, so as to indicate to the user of the tub through the reduced water temperature a need to service the water circulation system.
摘要翻译： 通过包括泵，水过滤器和在其关闭时通过电接触器通电的电流通加热器的水循环系统向桶提供热水。 敦促桶的使用者在其堵塞时对水循环系统进行维修。 为此，响应于水流波动的检测，感测到在循环系统中发生在水循环系统受限制的水流波动，接触器的闭合时间间隔预定的持续时间。 如果波动只是暂时的，通过重新闭合接触器来恢复加热器通电，则预定的持续时间足够短，但足够长以通过限制接触器的重新闭合来实现通过加热器供应的水桶中的水温降低 只要波动持续，以便通过降低水温向用户指示需要维修水循环系统。
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公开(公告)号：US4361274A
公开(公告)日：1982-11-30
申请号：US184638
申请日：1980-09-08
CPC分类号： G05D23/24 , G05D23/1909
摘要： An electronic temperature control circuit is disclosed for use with swimming pool and spa heaters. The circuit employs a thermistor for sensing water temperature, and provides temperature control with a narrow differential. Safety circuits are also employed to prevent injury to the user or to the heater in the event of a component failure. The temperature control circuit is provided with means for presetting two desired temperature settings and for selecting one of the preset temperature settings for control. Remote control circuits are also disclosed for use with the temperature control circuit which permit temperature selection, temperature setting and a visual indication of heater status from a location remote from the heater.
摘要翻译： 公开了一种用于游泳池和温泉加热器的电子温度控制电路。 该电路采用热敏电阻检测水温，并提供窄差的温度控制。 在组件故障的情况下，还采用安全电路来防止使用者或加热器受到伤害。 温度控制电路设置有用于预设两个期望的温度设置和用于选择一个预设温度设置用于控制的装置。 还公开了与温度控制电路一起使用的遥控电路，其允许从远离加热器的位置进行温度选择，温度设定和加热器状态的可视指示。
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公开(公告)号：US4421270A
公开(公告)日：1983-12-20
申请号：US322454
申请日：1981-11-18
CPC分类号： G05D23/24 , G05D23/1909
摘要： An electronic temperature control circuit is disclosed for use with swimming pool and spa heaters. The circuit employs a thermistor for sensing water temperature, and provides temperature control with a narrow differential. Safety circuits are also employed to prevent injury to the user or to the heater in the event of a component failure. The temperature control circuit is provided with means for presetting two desired temperature settings and for selecting one of the preset temperature settings for control. Remote control circuits are also disclosed for use with the temperature control circuit which permit temperature selection, temperature setting and a visual indication of heater status from a location remote from the heater.
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4.发明授权
公开(公告)号：US5936357A
公开(公告)日：1999-08-10
申请号：US122231
申请日：1998-07-24
IPC分类号： H05B41/392 , H05B37/02
CPC分类号： H05B41/2853 , H05B41/28 , H05B41/3925 , Y02B20/186 , Y10S315/04 , Y10S315/07
摘要： A microprocessor controlled, electronic ballast operates a lamp at nominal settings and shifts the operation of the ballast away from nominal settings to reduce interference. The shift is randomized by a test--flip--�shift! routine that prevents all ballasts from attempting the same correction at the same time. On DC input voltage, the frequency of the boost controller is varied to reduce EMI. The ballast operates in bands according to the input voltage. Some bands correspond to full brightness, some to a fixed amount of dimming, and some to a variable amount of dimming. In the event of an abrupt change in load, the microprocessor changes the frequency of the inverter, thereby reducing output power and gradually unloading the boost circuit and maintaining power to the microprocessor.
摘要翻译： 微处理器控制的电子镇流器以标称设置操作灯泡，并将镇流器的操作从标称设置移开，以减少干扰。 该移位通过一个测试触发器[shift]程序进行随机化，该程序可以防止所有镇流器同时进行相同的校正。 在直流输入电压下，升压控制器的频率变化，以减少EMI。 镇流器根据输入电压在频带中工作。 一些频带对应于全亮度，一些到一定量的调光，一些到一个可变量的调光。 在负载突然变化的情况下，微处理器改变变频器的频率，从而降低输出功率并逐渐卸载升压电路并维持微处理器的电力。
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5.发明授权公开(公告)号：US06600960B1
公开(公告)日：2003-07-29
申请号：US09591125
申请日：2000-06-09
申请人： Patrick J. Keegan
发明人： Patrick J. Keegan
IPC分类号： G05B1101
CPC分类号： F23N5/203 , F23N2023/04 , F23N2023/08 , F23N2027/22 , F23N2027/36
摘要： An event detector and associated methods of protecting systems provide convenient and economical safety features. In a described embodiment, an ignition sequence detector for a boiler system has a microprocessor which is programmed so that an ignition control module of the boiler system is deprived of primary power when an improper sequence of events occurs. The ignition sequence detector includes multiple event detectors interconnected to the microprocessor, and is configured so that it is usable in high RFI environments.
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公开(公告)号：US5925990A
公开(公告)日：1999-07-20
申请号：US995278
申请日：1997-12-19
申请人： Kent E. Crouse , Ronald J. Bezdon , Michael W. Bandel , Patrick J. Keegan , Boyko Boykov , Peter W. Shackle , William L. Keith
发明人： Kent E. Crouse , Ronald J. Bezdon , Michael W. Bandel , Patrick J. Keegan , Boyko Boykov , Peter W. Shackle , William L. Keith
IPC分类号： H05B41/285 , H05B41/36 , G05F1/00
CPC分类号： H05B41/2855 , H05B41/36 , Y02B20/186 , Y10S315/07
摘要： An electronic ballast includes an AC to DC converter for power factor correction, a bulk capacitor for storing energy from the converter, and a microprocessor controlled, half-bridge inverter including a series resonant, direct coupled output. Input ports of the microprocessor are coupled to several locations within the ballast to monitor the operation of the ballast or the operation of a gas discharge lamp coupled to the ballast. An analog voltage limiter overrides the microprocessor to limit output voltage under fault conditions. A storage capacitor, connected in series with the bulk capacitor, stores energy at low voltage for powering the microprocessor. The microprocessor is programmed to provide lamp protection features, lumen maintenance, and a warm-up period for a lamp. The microprocessor is also programmed to meet the operating requirements of world markets and of different lamp types.
摘要翻译： 电子镇流器包括用于功率因数校正的AC-DC转换器，用于存储来自转换器的能量的大容量电容器以及包括串联谐振直接耦合输出的微处理器控制的半桥逆变器。 微处理器的输入端口耦合到镇流器内的多个位置，以监测镇流器的操作或耦合到镇流器的气体放电灯的操作。 模拟电压限制器覆盖微处理器以在故障条件下限制输出电压。 与大容量电容器串联连接的存储电容器以低电压存储能量以为微处理器供电。 微处理器被编程为提供灯保护功能，流明维持和灯的预热时间。 微处理器也被编程为满足世界市场和不同灯类型的操作要求。
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公开(公告)号：US6023132A
公开(公告)日：2000-02-08
申请号：US170144
申请日：1998-10-12
IPC分类号： H05B41/282 , H05B41/285 , H05B37/02
CPC分类号： H05B41/2853 , H05B41/282 , H05B41/2855 , H05B41/2856 , Y10S315/04
摘要： An ballast includes a variable frequency boost circuit and a driven half-bridge inverter having a series resonant, direct coupled, parallel output. A control circuit includes a variable frequency driver section, a multivibrator section, and a sensing section. The variable frequency driver changes frequency smoothly, i.e. without discontinuities. The multivibrator section acts as a switch that is enabled or disabled by the sensing section for controlling the frequency of the inverter. Lamp current is required for continued operation of the control circuit. The multivibrator section controls starting by causing the inverter to produce an output signal having a trapezoidal envelope. In the event of an arc, the control circuit quenches the arc and the multivibrator periodically pulses the lamp to attempt to re-start the lamp.
摘要翻译： 镇流器包括可变频率升压电路和具有串联谐振，直接耦合并联输出的驱动半桥逆变器。 控制电路包括可变频率驱动器部分，多谐振荡器部分和感测部分。 可变频率驱动器平滑地改变频率，即不间断。 多谐振荡器部分用作感测部分启用或禁用的开关，用于控制变频器的频率。 控制电路的继续运行需要灯电流。 多谐振荡器部分通过使逆变器产生具有梯形包络的输出信号来控制开始。 在电弧的情况下，控制电路使电弧猝灭，并且多谐振荡器周期性地脉冲灯以试图重新启动灯。
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公开(公告)号：US5789866A
公开(公告)日：1998-08-04
申请号：US893741
申请日：1997-07-11
IPC分类号： H05B41/295 , H05B37/00
CPC分类号： H05B41/295 , Y10S315/05
摘要： An electronic ballast includes a series resonant inductor and capacitor and a filament winding magnetically coupled to said inductor. The filament winding forms a closed circuit with a filament in a gas discharge lamp, wherein the current induced in the winding opposes a portion of the current through the inductor to reduce the net voltage on the filament during normal lamp operation. In accordance with another aspect of the invention, the filament winding is reversely wound with the inductor on a common core to reverse the phase of the current induced in the filament winding from the current through the inductor.
摘要翻译： 电子镇流器包括串联谐振电感器和电容器以及与所述电感器磁耦合的细丝绕组。 灯丝绕组在气体放电灯中形成具有灯丝的闭合回路，其中在绕组中感应的电流与通过电感器的电流的一部分相反，以在正常的灯操作期间降低灯丝上的净电压。 根据本发明的另一方面，灯丝绕组与电感器反向卷绕在公共芯上，以将从灯丝绕组感应的电流的相位从电流反转。
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公开(公告)号：US4332164A
公开(公告)日：1982-06-01
申请号：US89528
申请日：1979-10-29
IPC分类号： G01K17/16
CPC分类号： G01K17/16
摘要： The temperatures at the inlet and the outlet of a solar energy collector being flown through by water are detected and compared with a ramp signal to provide a pulse train in which the number of pulses represents the temperature differential. The ramp signal is produced at a repetition rate representing the water flow rate so that the tallied pulses represent the BTU's as absorbed by the collector.
摘要翻译： 检测太阳能收集器通过水流入口和出口的温度，并将其与斜坡信号进行比较，以提供其中脉冲数表示温度差的脉冲串。 以表示水流量的重复率产生斜坡信号，使得计数脉冲表示由收集器吸收的BTU。
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10.发明授权Optical data receiver employing a solar cell resonant circuit and method for remote optical data communication 失效采用太阳能电池谐振电路的光数据接收器和远程光数据通信方法
公开(公告)号：US5602670A
公开(公告)日：1997-02-11
申请号：US540745
申请日：1995-10-11
申请人： Patrick J. Keegan
发明人： Patrick J. Keegan
IPC分类号： H04B10/06
CPC分类号： H04B10/60
摘要： A receiver circuit and method for receiving a signal having a given carrier frequency. The circuit comprises: (1) a solar cell receiver having a selected capacitance and (2) an inductive device having a selected inductance and coupled to the solar cell receiver, the solar cell receiver and the inductive device cooperating to form a resonant circuit having a selected resonant frequency associated therewith and being a function of the selected capacitance and the selected inductance, the resonant circuit resonating in response to a change in the signal to thereby allow the solar cell to receive data carried by the signal. By employing solar cell as part of a resonant circuit, the range of optical remote controls can be extended to as much as a mile. In one embodiment, the receiver circuit forms a portion of a remote-controlled pool or spa.
摘要翻译： 一种用于接收具有给定载波频率的信号的接收机电路和方法。 电路包括：（1）具有选定电容的太阳能电池接收器和（2）具有选定电感并耦合到太阳能电池接收器的感应装置，太阳能电池接收器和感应装置协作形成具有 选择的谐振频率并且是所选电容和所选择的电感的函数，谐振电路响应于信号的变化而谐振，从而允许太阳能电池接收由信号承载的数据。 通过使用太阳能电池作为谐振电路的一部分，光学遥控器的范围可以扩展到一英里。 在一个实施例中，接收器电路形成遥控池或温泉的一部分。
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