Pulse-by-pulse current mode controlled power supply
    1.
    发明授权
    Pulse-by-pulse current mode controlled power supply 失效
    逐脉冲电流模式控制电源

    公开(公告)号:US4885671A

    公开(公告)日:1989-12-05

    申请号:US172606

    申请日:1988-03-24

    申请人: William Peil

    发明人: William Peil

    IPC分类号: H05B41/24 H02M3/335 H05B41/28

    CPC分类号: H02M3/335 H05B41/28

    摘要: A power supply for a Xenon lamp of a projection television includes a pulse-width-modulator that is included in a power regulating outer feedback loop and in a current-mode inner feedback loop. A current sensing transformer, responsive to a current in a chopper arrangement of the power supply, generates a signal that is coupled to a lowpass filter. The filter generates a ramping portion of each pulse of a control signal that is coupled to a current sensing terminal of the pulse-width-modulator. A switch operating synchronously with a horizontal sync signal is coupled across a capacitor of the lowpass filter to completely discharge the capacitor prior to the beginning of each ramping portion.

    摘要翻译: 用于投影电视的氙灯的电源包括包括在功率调节外部反馈环路和电流模式内部反馈环路中的脉冲宽度调制器。 响应于电源的斩波器布置的电流的电流感测变压器产生耦合到低通滤波器的信号。 滤波器产生耦合到脉冲宽度调制器的电流感测端的控制信号的每个脉冲的斜坡部分。 与水平同步信号同步操作的开关耦合在低通滤波器的电容器上,以在每个斜坡部分开始之前完全放电电容器。

    Dual load remote power control for a ceiling fan
    2.
    发明授权
    Dual load remote power control for a ceiling fan 失效
    吊扇双负载远程电源控制

    公开(公告)号:US4560909A

    公开(公告)日:1985-12-24

    申请号:US425522

    申请日:1982-09-28

    申请人: William Peil

    发明人: William Peil

    IPC分类号: H02J13/00 G05F1/00

    摘要: An arrangement is disclosed for controlling the power applied to two remote loads energized from a common ac line. An example is a circuit for controlling fan speed and lamp brightness, both loads being installed in a common ceiling fixture, and requiring only a two conductor interconnection to a wall mounted control circuit. An exemplary control circuit employs two conventional controllers, each having a bidirectional, semiconductor switch, (e.g., a triac) having a manually adjustable conduction duty cycle for power control. The control circuit includes shunt and series diodes for mutual isolation of the controllers and for allocating one controller to one load and the other controller to the other load. The arrangement simplifies installation costs in requiring only a two conductor control connection, and is economic in its selection of components for the control function.

    摘要翻译: 公开了一种用于控制施加到从公共交流线路通电的两个远程负载的电力的装置。 一个例子是用于控制风扇速度和灯亮度的电路,两个负载都安装在公共天花板固定装置中,并且仅需要两个导体互连到壁挂式控制电路。 示例性控制电路采用两个常规控制器,每个控制器具有双向半导体开关(例如三端双向可控硅开关),其具有用于功率控制的可手动调节的导通占空比。 控制电路包括用于控制器相互隔离的分流和串联二极管,并将一个控制器分配给一个负载,另一个控制器分配给另一个负载。 该装置简化了仅需要两个导体控制连接的安装成本,并且在选择用于控制功能的部件方面是经济的。

    Control circuit for an electronically commutated motor including
reversing; method of operating an ECM including reversing
    3.
    发明授权
    Control circuit for an electronically commutated motor including reversing; method of operating an ECM including reversing 失效
    电子换向电机的控制电路,包括倒车; 操作ECM的方法包括倒车

    公开(公告)号:US4494055A

    公开(公告)日:1985-01-15

    申请号:US502594

    申请日:1983-06-09

    IPC分类号: H02P6/08 H02P6/00 H02P6/02

    CPC分类号: H02P6/30

    摘要: In a motor control circuit for an electronically commutated reversible motor used in a ceiling fan, a control is used to reduce the voltage supplied to the motor for variable speed or torque operation. At the same time, a substantially smooth control voltage, dependent on the variable voltage supplied to the motor, is produced. This control voltage, which is used to enhance the adjustment rate, is applied to control a pulse width modulator, which produces output pulses which also control the flow of energy to the motor. When the control voltage reaches a value slightly past the desired minimum speed or torque setting, a signal is generated to change the direction of motor rotation. Means are provided to delay the actual reversal to protect the power switches in the control circuit. When power is first applied, the initial direction of motor rotation is set by a switch on the ceiling fan. The control circuit permits control of motor reversal from a wall location. The control circuitry is designed for use in a maximally integrated ECM control circuit. The invention also concerns a method of controlling an ECM, including reversal, and reversal combined with torque or speed control.

    摘要翻译: 在吊扇中使用的用于电子换向的可逆电动机的电动机控制电路中,使用控制来降低供给电动机的电压以实现变速或转矩操作。 同时,产生取决于提供给电动机的可变电压的基本平滑的控制电压。 用于提高调节速率的该控制电压被施加以控制脉宽调制器,该调制器产生也控制向电动机的能量流的输出脉冲。 当控制电压达到略高于期望的最小速度或转矩设定值时,产生一个信号来改变电动机的旋转方向。 提供手段来延迟实际的反转以保护控制电路中的电源开关。 首次施加电源时,电机旋转的初始方向由吊扇上的开关设定。 控制电路允许从墙壁位置控制电机反转。 控制电路设计用于最大程度地集成的ECM控制电路。 本发明还涉及一种控制ECM的方法,包括与扭矩或速度控制相结合的反转和反转。

    Pulse generator for IC fabrication
    4.
    发明授权
    Pulse generator for IC fabrication 失效
    用于IC制造的脉冲发生器

    公开(公告)号:US4388536A

    公开(公告)日:1983-06-14

    申请号:US390359

    申请日:1982-06-21

    CPC分类号: H03K3/354 H03K3/017

    摘要: The present invention relates to a pulse generator for use at a selected frequency near 100 Khz and having a predetermined duty cycle (typically 20%). The pulse generator is designed for integrated circuit fabrication using a CMOS process. The design utilizes a ring oscillator whose frequency is varied by external adjustment of a single resistance and which utilizes a gating stage responsive to electrical conditions in at least two stages of the ring oscillator to establish the desired duty cycle. The duty cycle may also be adjusted, as by the inclusion of optional stages in the ring oscillator. The design features a low power consumption, and high temperature stability of frequency and duty cycle.

    摘要翻译: 脉冲发生器技术领域本发明涉及一种脉冲发生器,其以选定的频率在100KHz附近使用并且具有预定的占空比(通常为20%)。 脉冲发生器设计用于使用CMOS工艺的集成电路制造。 该设计利用环形振荡器,其频率通过单个电阻的外部调整而变化,并且其利用响应于环形振荡器的至少两个级中的电气条件的选通级来建立期望的占空比。 也可以通过在环形振荡器中包括任选级来调整占空比。 该设计具有低功耗,频率和占空比的高温稳定性。

    Lighting unit
    5.
    发明授权
    Lighting unit 失效
    照明单元

    公开(公告)号:US4350930A

    公开(公告)日:1982-09-21

    申请号:US156229

    申请日:1980-06-04

    摘要: A lighting unit is described utilizing an energy efficient metal vapor arc lamp as the main source of light supplemented by a standby filamentary light source producing light when the arc lamp is being started, the filament thereof serving as a resistive ballast for the arc lamp under normal operation. The lighting unit is designed as a more efficient replacement for the incandescent lamp. The lighting unit includes a rectifier for conversion of 60 hertz ac to dc, and a dc energized operating network, including a ferrite transformer and a transistor switch. The operating network produces an output adapted to each operating state of the arc lamp, including the provision of a high ignition potential, a power boost for the lamp during the glow to arc transition, warm-up and ballasting provisions, and means for sustaining the arc during transients which reduce the line voltage. The filamentary light source provides useful standby illumination while the arc lamp is being started, the amount being reduced to a low value as the arc lamp approaches normal light output.

    摘要翻译: 使用能量有效的金属蒸汽弧灯作为主要光源的照明单元被描述,该辅助光源在待弧光灯起动时产生光的备用丝光源,其灯丝在正常情况下用作电弧灯的电阻镇流器 操作。 照明单元被设计为更有效地替代白炽灯。 照明单元包括用于将60赫兹交流转换成直流的整流器,以及包括铁氧体变压器和晶体管开关的直流通电操作网络。 操作网络产生适合于弧光灯的每个操作状态的输出,包括提供高点燃电位,在发光到电弧转换期间灯的功率提升,预热和压载设置,以及用于维持 在瞬变期间电弧会降低线路电压。 当弧光灯正在启动时,灯丝光源提供有用的待机照明,当弧光灯接近正常的光输出时,该量被减小到较低的值。

    Lighting unit
    6.
    发明授权
    Lighting unit 失效
    照明单元

    公开(公告)号:US4464607A

    公开(公告)日:1984-08-07

    申请号:US305653

    申请日:1981-09-25

    摘要: An energy efficient lighting unit is described designed for functional similarity to the incandescent light used in the home. The light unit utilizes a metal vapor arc lamp as the main source of light supplemented by a standby filamentary light source. The lighting unit includes means for converting 60 hertz ac to dc, and a dc energized operating network comprising an inverter operating at above audible frequencies (e.g. 30-40 KHz). The operating network produces a sequence for the arc lamp and the standby filamentary light source appropriate to each operating state of the arc lamp.

    摘要翻译: 描述了一种设计用于与家用白炽灯功能相似的节能照明单元。 灯单元使用金属蒸汽弧灯作为补充有备用丝状光源的主要光源。 照明单元包括用于将60赫兹交流转换为直流的装置,以及包括在上述可听频率(例如30-40KHz)下工作的逆变器的直流通电操作网络。 操作网络产生适用于弧光灯的每个操作状态的弧光灯和备用丝光源的顺序。

    Threshold amplifier for IC fabrication using CMOS technology
    7.
    发明授权
    Threshold amplifier for IC fabrication using CMOS technology 失效
    使用CMOS技术的IC制造的阈值放大器

    公开(公告)号:US4453094A

    公开(公告)日:1984-06-05

    申请号:US393696

    申请日:1982-06-30

    CPC分类号: H03K5/08

    摘要: The present invention relates to a threshold amplifier suited to integrated circuit fabrication of a process employing CMOS technology. The threshold amplifier is designed to sense current producing a first or a second logic level as a function of a current threshold. The amplifier comprises a p-channel device and a n-channel device serially connected across the bias supply. The gate to source voltages of the two devices are respectively controlled by a diode connected p-channel device similarly serially connected across the bias supply with a diode connected n-channel device, the source of the latter being returned to ground via a current carrying resistance also in the second series path. The output level which is taken at the drain inter-connection between the devices in the first series path depends on the relative conductivity of the two devices which is in turn affected by the induced voltage drop in the source connected resistance in the second series path. The threshold voltage may be controlled by the geometry ratio between the n-channel devices, and the current setting in the second series path.

    摘要翻译: 本发明涉及适用于采用CMOS技术的工艺的集成电路制造的阈值放大器。 阈值放大器被设计为感测产生作为电流阈值的函数的第一或第二逻辑电平的电流。 放大器包括串行连接在偏置电源上的p沟道器件和n沟道器件。 两个器件的栅极到源极电压分别由二极管连接的p沟道器件控制,二极管连接的p沟道器件类似地串联连接在偏置电源上,并连接有二极管连接的n沟道器件,后者的源极通过载流电阻返回到地 也在第二个系列路径。 在第一串联路径中的器件之间的漏极互连处的输出电平取决于两个器件的相对电导率,这两个器件又受第二串联路径中的源极连接电阻中的感应电压降的影响。 阈值电压可以通过n沟道器件之间的几何比率和第二串联路径中的当前设置来控制。

    Arc lamp lighting unit with low and high light levels
    8.
    发明授权
    Arc lamp lighting unit with low and high light levels 失效
    具有低和高亮度水平的弧光灯具

    公开(公告)号:US4398130A

    公开(公告)日:1983-08-09

    申请号:US355658

    申请日:1982-03-08

    IPC分类号: H05B35/00 H05B41/42 H05B37/02

    CPC分类号: H05B41/46 H05B35/00 H05B41/42

    摘要: The present invention relates to a lighting unit having low and high light levels and employing an efficient arc lamp as the source of light during the high level setting. The unit employs a filamentary light source for the production of light during low light level operation, the filament acting as a resistive ballast for the arc lamp during high level operation. Practical embodiments operate in a conventional three-way light socket with the sequences being off, low, high and low, and off, low, high, and high.

    摘要翻译: 本发明涉及在高电平设定期间具有低和高光量级并采用高效弧光灯作为光源的照明单元。 该单元采用长丝光源用于在低光级操作期间产生光,灯丝在高电平操作期间用作电弧灯的电阻镇流器。 实际实施例在常规三路灯插座中工作,其序列是关闭,低,高和低,以及关闭,低,高和高。

    Smoke detector
    9.
    发明授权
    Smoke detector 失效
    烟雾探测器

    公开(公告)号:US4118689A

    公开(公告)日:1978-10-03

    申请号:US746293

    申请日:1976-12-01

    申请人: William Peil

    发明人: William Peil

    IPC分类号: G01N27/64 G08B17/10 G08B17/11

    CPC分类号: G08B17/11

    摘要: A smoke detector comprising a smoke detection cell of the ionization type and an electrical network which provides for ac operation of the detection cell. The impedance of the smoke detection cell is very high (40,000 megohms) and changes in the presence of airborne combustion products. The network senses the impedance change by a measurement of the current through the chamber assuming an ac source under a short circuit load condition, a technique facilitating the use of bipolar transistors.

    摘要翻译: 一种烟雾探测器,其包括电离型烟雾探测单元和提供检测单元的交流操作的电气网络。 烟雾探测单元的阻抗非常高(40,000兆欧),空气燃烧产物存在变化。 网络通过在短路负载条件下假设交流源的电流的测量来检测阻抗变化,这是促进使用双极晶体管的技术。

    AM-FM receiver having improved bias supply circuit
    10.
    发明授权
    AM-FM receiver having improved bias supply circuit 失效
    AM-FM接收机具有改进的偏置电源电路

    公开(公告)号:US3936750A

    公开(公告)日:1976-02-03

    申请号:US542623

    申请日:1975-01-20

    IPC分类号: H03D5/00 H03G3/30 H04B1/06

    CPC分类号: H03D5/00 H03G3/3052

    摘要: The present invention relates to an AM-FM receiver of the superheterodyne variety having a novel bias supply circuit wherein a common filter capacitor may be used for the bias supply, the AGC function in AM operation, and the AFC function in FM operation. The B+ bias is supplied through a controllable current source which adjusts the bias in accordance with the detector output. In the FM mode setting, automatic frequency control of the local oscillator is provided by bias adjustment. In the AM mode setting, automatic gain control of the IF amplifier and of the AM section of the tuner is provided by bias adjustment. The invention has preferred application to integrated circuit fabrication.

    摘要翻译: 本发明涉及一种具有新型偏置电源电路的超外差种类的AM-FM接收机,其中公共滤波电容器可用于偏置电源,AM操作中的AGC功能和FM操作中的AFC功能。 B +偏压通过可控电流源提供,可根据检测器输出调节偏置。 在FM模式设置中,通过偏置调整提供本地振荡器的自动频率控制。 在AM模式设置中,通过偏置调整提供了IF放大器和调谐器的AM部分的自动增益控制。 本发明优选应用于集成电路制造。