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1.发明授权Variable speed controller for air moving applications using an AC induction motor 失效使用交流感应电机的空气移动应用的变速控制器公开(公告)号：US06864659B2
公开(公告)日：2005-03-08
申请号：US10191975
申请日：2002-07-09
摘要： An HVAC system has at least one variable speed controller for an AC induction motor, especially of the Permanent Split Capacitor (PSC) type. The variable speed controller provides switched power via a modulating triac to the main coils of the motor and constant power via an on/off triac to the auxiliary coils during operation. A large value capacitor is placed in line with the auxiliary coils to reduce power consumption and current draw over that of known systems. Power to the motor can be turned off to provide for motor speed sensing through monitoring the frequency of a generated voltage when the power is turned off. Frequency-based motor speed sensing is accomplished by shutting off all current to the motor and measuring zero crossings on the generated voltage of the decaying magnetic field. The controller can be easily retrofitted onto existing motors. An optional controller bypass is provided to run the motor at rated speed in case of controller failure.
摘要翻译： HVAC系统具有用于AC感应电动机的至少一个变速控制器，特别是永久分流电容器（PSC）型。 可变速度控制器通过调制三端双向可控硅开关，通过在运行期间通过开/关三端双向可控硅开关向辅助线圈提供电动机的主线圈和恒定功率。 一个大值的电容放置在与辅助线圈一致的位置上，以降低功耗并消耗已知系统的电流。 关闭电机的电源可以关闭，通过监控电源关闭时产生的电压的频率来提供电机速度检测。 基于频率的电动机速度检测是通过关闭电动机的所有电流并测量衰减磁场的产生电压上的过零点来实现的。 控制器可以轻松地改装到现有的电机上。 提供可选的控制器旁路以在控制器故障的情况下以额定速度运行电机。
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公开(公告)号：US5236328A
公开(公告)日：1993-08-17
申请号：US948032
申请日：1992-09-21
申请人： George J. Tate , Paul E. Sigafus
发明人： George J. Tate , Paul E. Sigafus
CPC分类号： F23N5/242 , F23N5/082 , F23N2027/16 , F23N2031/10 , F23N2031/20
摘要： A burner control system periodically tests for and detects an out of range signal level from a flame sensor in the burner. When the system is in standby operation where no flame is present, the control system checks whether the flame signal level is within an abnormal range defined by a low margin level and a threshold level. When the system is in an operational phase where flame is expected, the system checks whether the flame signal level is within an abnormal range defined by a high margin level and the threshold level. Should either check detect the flame signal within an abnormal range, a signal is provided indicating this abnormal condition. Preferably, the abnormal condition is used to control the flashing of an indicator light, fast during standby phase if the flame signal level is too close to the threshold level and more slowly if the flame signal level is too close to the threshold level while flame is present. It is also possible to use two different lights for the indicators.
摘要翻译： 燃烧器控制系统周期性地测试并检测来自燃烧器中的火焰传感器的超出范围的信号水平。 当系统处于没有火焰存在的待机状态时，控制系统检查火焰信号电平是否处于由低余量水平和阈值水平限定的异常范围内。 当系统处于预期火焰的操作阶段时，系统检查火焰信号电平是否处于由高余量水平和阈值水平限定的异常范围内。 应检查异常范围内的火焰信号，提供指示此异常情况的信号。 优选地，如果火焰信号电平太接近阈值电平，则在待机阶段期间，如果火焰信号电平太接近门限电平，则火焰信号电平太接近阈值电平，则异常状态用于控制指示灯的闪烁， 当下。 也可以使用两个不同的指示灯。
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公开(公告)号：US07293718B2
公开(公告)日：2007-11-13
申请号：US11080773
申请日：2005-03-15
IPC分类号： F24H9/20
CPC分类号： F23N1/002 , F23N5/203 , F23N2025/12 , F23N2027/10 , F23N2033/04 , F23N2033/08 , F23N2035/16 , F23N2037/10
摘要： A heating or cooling system, such as an HVAC system, of variable output has a number of control elements and may include a variable speed compressor, a variable speed combustion (induced or forced draft) blower motor; a variable speed circulator blower motor; a variable output gas valve or gas/air premix unit; and a controller specifically developed for variable output applications. The system may utilize a pressure sensor to determine the actual flow of combustion airflow in response to actual space conditions, vary the speed of the inducer blower, and subsequently vary the gas valve output to supply the correct amount of gas to the burner system. A temperature sensor may be located in the discharge air stream of the conditioned air to provide an input signal for the circulator blower.
摘要翻译： 可变输出的诸如HVAC系统的加热或冷却系统具有多个控制元件，并且可以包括变速压缩机，变速燃烧（诱导或强制通风）鼓风机电机; 变速循环式鼓风机电机; 可变输出气体阀或气/空气预混单元; 和专为可变输出应用开发的控制器。 系统可以利用压力传感器来响应于实际空间条件来确定燃烧气流的实际流量，改变诱导鼓风机的速度，随后改变燃气阀输出以向燃烧器系统供应正确量的气体。 温度传感器可以位于调节空气的排出空气流中，以提供循环鼓风机的输入信号。
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公开(公告)号：US06866202B2
公开(公告)日：2005-03-15
申请号：US10236678
申请日：2002-09-06
CPC分类号： F23N1/002 , F23N5/203 , F23N2025/12 , F23N2027/10 , F23N2033/04 , F23N2033/08 , F23N2035/16 , F23N2037/10
摘要： A heating or cooling system, such as an HVAC system, of variable output has a number of control elements and may include a variable speed compressor, a variable speed combustion (induced or forced draft) blower motor; a variable speed circulator blower motor; a variable output gas valve or gas/air premix unit; and a controller specifically developed for variable output applications. The system may utilize a pressure sensor to determine the actual flow of combustion airflow in response to actual space conditions, vary the speed of the inducer blower, and subsequently vary the gas valve output to supply the correct amount of gas to the burner system. A temperature sensor may be located in the discharge air stream of the conditioned air to provide an input signal for the circulator blower.
摘要翻译： 可变输出的诸如HVAC系统的加热或冷却系统具有多个控制元件，并且可以包括变速压缩机，变速燃烧（诱导或强制通风）鼓风机电机; 变速循环式鼓风机电机; 可变输出气体阀或气/空气预混单元; 和专为可变输出应用开发的控制器。 系统可以利用压力传感器来响应于实际空间条件来确定燃烧气流的实际流量，改变诱导鼓风机的速度，随后改变燃气阀输出以向燃烧器系统供应正确量的气体。 温度传感器可以位于调节空气的排出空气流中，以提供循环鼓风机的输入信号。
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公开(公告)号：US06404342B1
公开(公告)日：2002-06-11
申请号：US09952401
申请日：2001-09-14
申请人： Norman G. Planer , Paul E. Sigafus
发明人： Norman G. Planer , Paul E. Sigafus
IPC分类号： G08B1712
CPC分类号： F23N5/082
摘要： A flame detector for a burner system having a flame during combustion that emits UV radiation, has a low gain UV sensor, a capacitor, a band pass filter receiving the capacitor's signal, and a rectifier receiving the band pass filter signal and providing a rectifier signal. A low pass filter receives the rectifier signal and provides a flame signal as an output whose magnitude is indicative of presence or absence of flame. An optical filter interposed between the UV sensor and the flame and having optical bandpass characteristics attenuating UV radiation outside the wavelength associated with the flame, improves operation.
摘要翻译： 一种燃烧器系统的火焰探测器，其在燃烧期间具有发射紫外线辐射的火焰，具有低增益UV传感器，电容器，接收电容器信号的带通滤波器，以及接收带通滤波器信号的整流器并提供整流器信号 。 低通滤波器接收整流器信号并提供火焰信号作为输出，其大小指示是否存在火焰。 介于UV传感器和火焰之间并且具有衰减紫外线辐射的光学带通特性的光学滤波器，可以改善操作。
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公开(公告)号：US5365223A
公开(公告)日：1994-11-15
申请号：US783950
申请日：1991-10-28
申请人： Paul E. Sigafus
发明人： Paul E. Sigafus
摘要： A circuit for detecting whether the level of an electrical signal having a preselected polarity is above a preselected value, is powered by DC of the opposite polarity. This prevents current leakage within the detector circuit from simulating the level of the electrical signal. Such a circuit is particularly suited for detecting the current level provided by a flame sensor in a combustion control system. The preferred embodiment has a capacitor which is charged by the circuit and then discharged by the electrical signal. The time required to discharge the capacitor to a preselected level indicates the level of the electrical signal. A second embodiment uses a comparator in a feedback loop which allows sensing the level of a voltage outside of the voltage range defined by the comparator's power supply.
摘要翻译： 用于检测具有预选极性的电信号的电平是否高于预选值的电路由相反极性的DC供电。 这可以防止检测器电路内的电流泄漏模拟电信号的电平。 这种电路特别适用于检测由燃烧控制系统中的火焰传感器提供的电流水平。 优选实施例具有由电路充电然后通过电信号放电的电容器。 将电容器放电到预定电平所需的时间表示电信号的电平。 第二实施例使用反馈回路中的比较器，其允许感测由比较器的电源限定的电压范围之外的电压的电平。
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7.发明授权Infrared-based sensing circuit providing an output simulating the output of a flame rod sensor 失效红外线传感电路提供模拟火焰棒传感器输出的输出
公开(公告)号：US5227639A
公开(公告)日：1993-07-13
申请号：US957460
申请日：1992-10-06
申请人： Paul E. Sigafus
发明人： Paul E. Sigafus
IPC分类号： F23N5/08
CPC分类号： F23N5/082 , F23N2029/08
摘要： A converter circuit provides an output signal of polarity opposite that of an input signal having a DC component and a low frequency periodic component in response to presence of that input signal. Current is transferred from a first capacitor to a second to accomplish this conversion. The circuit has particular application in a flame sensing interface circuit using a sensor of the infrared radiation generated by the flame to change the impedance of the sensor. By use of the circuit, the output of an infrared sensing amplifier imitates the output of a conventional flame rod sensor, and provides an output signal compatible with the output of a flame rod to the input to a flame signal processor.
摘要翻译： A转换器电路响应于该输入信号的存在，提供极性与具有DC分量和低频周期分量的输入信号相反的输出信号。 电流从第一电容器转移到第二电容器以完成该转换。 该电路在火焰感测接口电路中具有特殊的应用，该电路使用由火焰产生的红外线辐射传感器来改变传感器的阻抗。 通过使用该电路，红外感测放大器的输出模拟常规火焰棒传感器的输出，并提供与火焰棒的输出兼容的输出信号到火焰信号处理器的输入。
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