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1.发明授权Wide input voltage range relay drive circuit for universal defrost timer 失效宽输入电压范围继电器驱动电路，用于通用除霜定时器公开(公告)号：US07245475B2
公开(公告)日：2007-07-17
申请号：US11403426
申请日：2006-04-13
申请人： Terry Lee Huber , Dale Thomas Rodda
发明人： Terry Lee Huber , Dale Thomas Rodda
IPC分类号： H02H3/20
CPC分类号： H02H9/047 , F25D21/006 , F25D21/008 , H01H47/325
摘要： A wide input voltage range relay drive circuit allowing a more than 2:1 input voltage variation is provided. The circuit utilizes a scaled and rectified bulk voltage to drive the relay coil. As the monitored bulk voltage increases beyond the relay coil rated voltage, the circuit pulse width multiplexes this bulk voltage to protect the relay coil. The bulk voltage switching does not begin, however, until the relay energizes. To reduce the power dissipation during the PWM switching, of the relay coil, a power dissipating switch is included and held on during the PWM switching events. To further increase relay life, the circuit controls the energizing of the relay coil to actuate the contacts of the relay at or near a zero cross of the power switched thereby.
摘要翻译： 提供宽输入电压范围继电器驱动电路，允许输入电压变化超过2：1。 该电路利用缩放和整流的体电压来驱动继电器线圈。 随着监控的体电压增加超过继电器线圈额定电压，电路脉冲宽度复用此体电压以保护继电器线圈。 然而，直到继电器通电，体积电压开关才开始。 为了降低PWM切换期间的功率耗散，继电器线圈在PWM开关事件期间包括并保持功率耗散开关。 为了进一步延长继电器寿命，电路控制继电器线圈的通电，以在由此切换的电力的零交叉处或附近致动继电器的触点。
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公开(公告)号：US20100075264A1
公开(公告)日：2010-03-25
申请号：US12234765
申请日：2008-09-22
IPC分类号： F23Q9/08
CPC分类号： F23Q3/00 , F23N5/242 , F23N2027/02 , F23N2027/24 , F23N2027/32
摘要： A redundant ignition control system and method for gas burning appliances is provided. The system utilizes a main processor and a supervisory processor to provide the redundant, fail safe operation of both the pilot valve and the main gas valve of the appliance. Three switching elements under the control of the two processors, as well as the use of high pass filters to block DC from the gas control valves provide redundant, fail safe operation. The use of variable duty cycle or frequency pulse width modulated signals enables use in low power applications and ensures system safety. Inclusion of a gas valve verification sequence, ignition sequence, burner monitoring sequence, and heat shutdown and standby sequences ensures safe, low power operation during normal control, and fail safe operation upon the failure of any component of the system.
摘要翻译： 提供了一种燃气燃烧器具的冗余点火控制系统和方法。 该系统利用主处理器和监控处理器来提供先导阀和主燃气阀的冗余故障安全操作。 在两个处理器的控制下的三个开关元件以及使用高通滤波器来阻止来自气体控制阀的DC提供冗余的故障安全操作。 使用可变占空比或频率脉宽调制信号可以在低功耗应用中使用，并确保系统安全。 包括气阀验证序列，点火顺序，燃烧器监控顺序以及热关断和待机序列确保在正常控制期间安全，低功率运行，并且在系统任何组件发生故障时都能够安全运行。
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公开(公告)号：US07944678B2
公开(公告)日：2011-05-17
申请号：US12208856
申请日：2008-09-11
IPC分类号： F23Q3/00
CPC分类号： H02M3/33507 , F23Q3/004 , Y02B70/1433
摘要： A low voltage power supply circuit for intermittent pilot and/or direct spark ignition systems utilized in gas burning appliances is provided. The circuit utilizes a single transformer and a resonant circuit to supply power to both a flame sense circuit as well as the spark generation circuit. The resonant circuit allows the use of low power sources such as batteries or self-supplied voltage systems such as thermopiles or hydro generators. Recognizing that power draw from the low power source is high during a sparking event and recharging of a sparking capacitor, the flame sensing is suspended during the sparking event and for a short recharge time thereafter.
摘要翻译： 提供了一种用于气体燃烧器具中的间歇式先导和/或直接火花点火系统的低压电源电路。 该电路利用单个变压器和谐振电路为火焰感测电路以及火花发生电路供电。 谐振电路允许使用诸如电池或诸如热电堆或水力发电机的自供电电压系统的低功率源。 认识到在火花事件和火花电容器的再充电期间，来自低功率源的功率消耗很高，因此火花检测在火花事件期间被暂停，此后的充电时间短。
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公开(公告)号：US20100061034A1
公开(公告)日：2010-03-11
申请号：US12208856
申请日：2008-09-11
CPC分类号： H02M3/33507 , F23Q3/004 , Y02B70/1433
摘要： A low voltage power supply circuit for intermittent pilot and/or direct spark ignition systems utilized in gas burning appliances is provided. The circuit utilizes a single transformer and a resonant circuit to supply power to both a flame sense circuit as well as the spark generation circuit. The resonant circuit allows the use of low power sources such as batteries or self-supplied voltage systems such as thermopiles or hydro generators. Recognizing that power draw from the low power source is high during a sparking event and recharging of a sparking capacitor, the flame sensing is suspended during the sparking event and for a short recharge time thereafter.
摘要翻译： 提供了一种用于气体燃烧器具中的间歇式先导和/或直接火花点火系统的低压电源电路。 该电路利用单个变压器和谐振电路为火焰感测电路以及火花发生电路供电。 谐振电路允许使用诸如电池或诸如热电堆或水力发电机的自供电电压系统的低功率源。 认识到在火花事件和火花电容器的再充电期间，来自低功率源的功率消耗很高，因此火花检测在火花事件期间被暂停，此后的充电时间短。
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