TWO-WIRE COMMUNICATIONS BUS SYSTEM
    1.
    发明申请
    TWO-WIRE COMMUNICATIONS BUS SYSTEM 有权
    双线通信总线系统

    公开(公告)号:US20090086831A1

    公开(公告)日:2009-04-02

    申请号:US11862618

    申请日:2007-09-27

    IPC分类号: H04L27/00

    CPC分类号: H04L5/16 H04L25/0272

    摘要: A low-cost, two-wire, half-duplex high speed powered communications bus having a master/controller and one or more slave/sensor/interface units. The master/controller may have a current-limited power supply, and receive/transmit circuitry. Each slave/sensor/interface may have polarity protection and also have receive/transmit circuitry. The power supply may provide high/low voltage levels on the bus and over-current protection, and have one or more diodes for mis-wire protection. Each transmit circuit may have a tunable R-C network for limiting RF emissions. Each slave/sensor/interface may receive data and power over the two-wire bus.

    摘要翻译: 具有主/控制器和一个或多个从属/传感器/接口单元的低成本,双线,半双工高速电力通信总线。 主控制器可以具有限流电源和接收/发送电路。 每个从站/传感器/接口可能具有极性保护,并且还具有接收/发送电路。 电源可以在总线上提供高/低电压电平和过流保护,并且具有一个或多个用于错线保护的二极管。 每个发射电路可以具有用于限制RF发射的可调谐R-C网络。 每个从站/传感器/接口可以通过双线总线接收数据和电源。

    Two-wire communications bus system
    2.
    发明授权
    Two-wire communications bus system 有权
    双线通信总线系统

    公开(公告)号:US07966438B2

    公开(公告)日:2011-06-21

    申请号:US11862618

    申请日:2007-09-27

    CPC分类号: H04L5/16 H04L25/0272

    摘要: A low-cost, two-wire, half-duplex high speed powered communications bus having a master/controller and one or more slave/sensor/interface units. The master/controller may have a current-limited power supply, and receive/transmit circuitry. Each slave/sensor/interface may have polarity protection and also have receive/transmit circuitry. The power supply may provide high/low voltage levels on the bus and over-current protection, and have one or more diodes for mis-wire protection. Each transmit circuit may have a tunable R-C network for limiting RF emissions. Each slave/sensor/interface may receive data and power over the two-wire bus.

    摘要翻译: 具有主/控制器和一个或多个从属/传感器/接口单元的低成本,双线,半双工高速电力通信总线。 主控制器可以具有限流电源和接收/发送电路。 每个从站/传感器/接口可能具有极性保护,并且还具有接收/发送电路。 电源可以在总线上提供高/低电压电平和过流保护,并且具有一个或多个用于错线保护的二极管。 每个发射电路可以具有用于限制RF发射的可调谐R-C网络。 每个从站/传感器/接口可以通过双线总线接收数据和电源。

    Microcontroller controlled input protection
    3.
    发明授权
    Microcontroller controlled input protection 失效
    微控制器控制输入保护

    公开(公告)号:US5324915A

    公开(公告)日:1994-06-28

    申请号:US467060

    申请日:1990-01-18

    IPC分类号: F23N5/24 G05B19/042 H05B1/02

    CPC分类号: G05B19/0425

    摘要: A method and apparatus provide input protection in a system having a controller which monitors a controller terminal for at least one monitor period. The controller terminal is coupled for bi-directional operation. The controller terminal is set to an output configuration for at least a portion of the time that the controller terminal is not being monitored by the controller.

    摘要翻译: 一种方法和装置在具有控制器的系统中提供输入保护,所述控制器监视控制器终端至少一个监视周期。 控制器端子被耦合用于双向操作。 在控制器终端未被控制器监视的至少一部分时间内,将控制器终端设置为输出配置。

    Thermostat control
    4.
    发明授权
    Thermostat control 失效
    温控器控制

    公开(公告)号:US5211332A

    公开(公告)日:1993-05-18

    申请号:US769038

    申请日:1991-09-30

    申请人: John T. Adams

    发明人: John T. Adams

    IPC分类号: F16K31/64 G05D23/19

    CPC分类号: G05D23/1917

    摘要: A process of operating an electronic thermostat so that it models the effects of a mechanical thermostat anticipator.

    摘要翻译: 操作电子恒温器的过程,以便模拟机械恒温器预期器的效果。

    Energy saving thermostat
    5.
    发明授权
    Energy saving thermostat 失效
    节能恒温器

    公开(公告)号:US4316577A

    公开(公告)日:1982-02-23

    申请号:US194210

    申请日:1980-10-06

    摘要: An energy saving thermostat adapted to be connected to a remote temperature conditioning apparatus for controlling the temperature of air in a space maintains a first temperature during a first time period and a second energy saving temperature during other time periods of the day. The thermostat has a visual indicating means so that when a manually settable switch is pushed, a time interval counter means is energized for indicating and storing a series of pulses each indicative of an hour of setback time into a storage means. The thermostat also has a review button for reviewing the stored time by pulsing the visual indicating means for the number of hours of the time period energy saving temperature.

    摘要翻译: 适于连接到用于控制空间中的空气的温度的远程温度调节装置的节能恒温器在一天的其它时间段期间在第一时间段和第二节能温度期间保持第一温度。 恒温器具有视觉指示装置,使得当推动可手动设置的开关时,通电时间间隔计数器装置,用于指示和存储每个指示一小时的挫折时间的一系列脉冲进入存储装置。 恒温器还具有用于通过脉冲视觉指示装置来查看所述存储时间的查看按钮,用于所述时间段节能温度的小时数。

    Dynamic DC biasing and leakage compensation
    6.
    发明授权
    Dynamic DC biasing and leakage compensation 有权
    动态直流偏置和漏电补偿

    公开(公告)号:US07800508B2

    公开(公告)日:2010-09-21

    申请号:US10908463

    申请日:2005-05-12

    IPC分类号: G08B17/12

    CPC分类号: F23N5/123 F23N2029/06

    摘要: A system for adjusting a bias voltage of a flame sensing system. The system may use pulse width modulation to adjust the bias voltage. The system may have a flame sensing rod that conveys an electrical equivalent circuit of a flame presence to a detector via low pass filter. An excitation voltage may be conveyed via a DC blocking mechanism to the sensing rod. A pulse width modulation signal may be conveyed via a bias resistor to a node of the low pass filter and the detector. The input of an A/D converter may be that of the detector for flame signals. Also, leakages between the node of the A/D converter connection and the voltage source and/or ground may be detected and compensated. Further, leakage of the DC blocking mechanism may be minimized.

    摘要翻译: 一种用于调节火焰感测系统的偏置电压的系统。 系统可以使用脉冲宽度调制来调整偏置电压。 该系统可以具有火焰传感杆,其通过低通滤波器将火焰存在的电等效电路传送到检测器。 激励电压可以经由直流阻塞机构传送到感测杆。 脉冲宽度调制信号可以经由偏置电阻器传送到低通滤波器和检测器的节点。 A / D转换器的输入可以是用于火焰信号的检测器的输入。 此外,可以检测和补偿A / D转换器连接的节点与电压源和/或接地之间的泄漏。 此外,DC阻断机构的泄漏可能被最小化。

    Thermostat having simple battery level detection
    7.
    发明授权
    Thermostat having simple battery level detection 失效
    恒温器具有简单的电池电量检测

    公开(公告)号:US5238184A

    公开(公告)日:1993-08-24

    申请号:US769043

    申请日:1991-09-30

    申请人: John T. Adams

    发明人: John T. Adams

    IPC分类号: G05D23/19 G08B29/18

    CPC分类号: G08B29/181 G05D23/1905

    摘要: A thermostat having a simple battery level detection circuit. The output of an oscillator, having a frequency dependent upon the battery level, is compared to the output of a battery level independent time base. If the two outputs are not in a predetermined relationship, all connected HVAC equipment is shut off.

    摘要翻译: 具有简单电池电平检测电路的恒温器。 具有取决于电池电平的频率的振荡器的输出与电池电平独立时基的输出进行比较。 如果两个输出不是一个预定的关系,则所有连接的HVAC设备都被关闭。

    Analog-to-digital converter to be used along with a resistive sensor
    8.
    发明授权
    Analog-to-digital converter to be used along with a resistive sensor 失效
    模数转换器与电阻式传感器一起使用

    公开(公告)号:US5144309A

    公开(公告)日:1992-09-01

    申请号:US651688

    申请日:1991-02-06

    IPC分类号: H03M1/50

    CPC分类号: H03M1/50

    摘要: An analog to digital converter used along with a variable resistive sensing means utilizes the capabilities of a microprocessor to charge and discharge a capacitor. The time required for this capacitor to discharge is dependent upon the value of the variable resistive sensing means. Circuitry is used to create a pulse whose pulse width is equal to the discharged time of a capacitor through the variable resistive sensing means.

    摘要翻译: 与可变电阻感测装置一起使用的模数转换器利用微处理器对电容器进行充电和放电的能力。 该电容器放电所需的时间取决于可变电阻感测装置的值。 电路用于产生脉冲宽度等于电容器通过可变电阻感测装置的放电时间的脉冲。

    Power supply for an electrostatic air cleaner with a modulated pulse
width voltage input having a backup pulse width limiting means
    9.
    发明授权
    Power supply for an electrostatic air cleaner with a modulated pulse width voltage input having a backup pulse width limiting means 失效
    具有调制脉冲宽度电压输入的具有备用脉冲宽度限制装置的静电空气滤清器的电源

    公开(公告)号:US4562522A

    公开(公告)日:1985-12-31

    申请号:US567432

    申请日:1983-12-30

    CPC分类号: H02M3/3385 H02M3/33523

    摘要: A power supply usable with various size loads has an input circuit receiving pulses of voltage at 25 kilohertz. The pulses are modulated in width depending upon the input to a pulse-width modulation IC receiving inputs indicative of the output voltage and current delivered to the load. A backup current limiting circuit comprising a transistor which is biased by the voltage to the load, limits the signal to the pulse-width modulation IC to limit the width of the pulse to maintain the output current within limits.

    摘要翻译: 可用于各种尺寸负载的电源具有接收25千赫兹电压脉冲的输入电路。 根据输入到脉冲宽度调制IC的脉冲宽度进行调制,脉冲宽度调制IC接收指示输出电压和输送到负载的电流的输入。 备用电流限制电路包括被电压偏压到负载的晶体管,将信号限制到脉冲宽度调制IC以限制脉冲的宽度以将输出电流保持在限度内。