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公开(公告)号：US4350930A
公开(公告)日：1982-09-21
申请号：US156229
申请日：1980-06-04
申请人： William Peil , Robert J. McFadyen
发明人： William Peil , Robert J. McFadyen
CPC分类号： H05B41/46 , H05B35/00 , H05B41/388 , Y02B20/204 , Y10S315/05 , Y10S315/07
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。
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公开(公告)号：US4398130A
公开(公告)日：1983-08-09
申请号：US355658
申请日：1982-03-08
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。
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公开(公告)号：US3936750A
公开(公告)日：1976-02-03
申请号：US542623
申请日：1975-01-20
申请人： William Peil , Robert J. McFadyen
发明人： William Peil , Robert J. McFadyen
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。
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公开(公告)号：US4259716A
公开(公告)日：1981-03-31
申请号：US028405
申请日：1979-04-09
摘要： A novel transformer is described for use in a static inverter in association with one or two switching semiconductor devices. The transformer produces an output for control of the associated switching device(s) which changes in sense from conduction aiding to conduction inhibiting as a function of the flux level in the transformer core. The invention is applicable to single loop cores, such as are assembled from two "U" cores. Control is effected by a primary and secondary control winding wound through an aperture pair, the aperture pair being oriented for "neutrality" of the second control winding to the main flux. The aperture pair creates a five branch magnetic path which permits optimizing the control voltage applied to the associated semiconductor devices both to enhance the switching efficiency when the switching device is initially turned on and to reduce stresses on the switching device by precluding transformer saturation when the switching device is turned off. With two switching devices, two aperture pairs are normally provided.
摘要翻译： 描述了一种与一个或两个开关半导体器件相关联的用于静态逆变器的新型变压器。 变压器产生用于控制相关开关器件的输出，其从感应传导到传导抑制的变化，其作为变压器铁芯中的通量水平的函数。 本发明可应用于单环芯，例如由两个“U”芯组装。 控制通过缠绕在孔径对上的初级和次级控制绕组来实现，该孔径对被定向成使第二控制绕组的“中性”到主通量。 孔径对产生五个分支磁路，其允许优化施加到相关联的半导体器件的控制电压，以在开关器件初始接通时提高开关效率，并且通过在开关器件的切换时通过排除变压器饱和来减小开关器件上的应力 设备已关闭。 使用两个开关装置，通常提供两个开口对。
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公开(公告)号：US4050022A
公开(公告)日：1977-09-20
申请号：US731281
申请日：1976-10-12
申请人： Robert J. McFadyen , William Peil
发明人： Robert J. McFadyen , William Peil
CPC分类号： H03G3/14 , H03D5/00 , H03G3/30 , H03G3/3052 , H04B1/16
摘要： The present invention relates to an AM-FM receiver suitable for integrated circuit fabrication and having improved mode conversion means. The AM-FM receiver had a d.c. coupled IF broadband IF amplifier comprising a plurality of stages of emitter coupled transistor pairs. A d.c. feedback network is provided to balance the individual stages and to generate a control potential for further use in mode conversion. In the FM mode, the IF amplifier operates with a high, stable gain at the FM IF frequency with gain reduction for noise suppression purposes below the FM IF frequency. Frequency dependent noise suppression is provided by a capacitance associated with the degenerative network. In the AM mode, the IF amplifier operates at a controllable, medium gain with the degenerative effect on IF gain restored at the AM IF frequency by the addition of capacity to the degenerative network. A control bus, energized by the degenerative network, is used for gain control purposes in the AM tuner and for mode conversion in the AM tuner, the AM-FM detector, and separate portions of the AM and FM audio circuitry.
摘要翻译： 本发明涉及适用于集成电路制造并具有改进的模式转换装置的AM-FM接收机。 AM-FM接收机具有直流 耦合的IF宽带IF放大器包括多级发射极耦合晶体管对。 一个d.c. 反馈网络被提供以平衡各个阶段并产生用于在模式转换中进一步使用的控制电位。 在FM模式中，IF放大器在FM IF频率下以高稳定的增益运行，降低噪声抑制的优点，低于FM IF频率。 频率相关噪声抑制由与退化网络相关联的电容提供。 在AM模式下，IF放大器以可控的中等增益工作，通过向退化网络增加容量，在AM IF频率上恢复IF增益的退化效应。 由退化网络激励的控制总线用于AM调谐器中的增益控制目的，AM调谐器，AM-FM检测器以及AM和FM音频电路的单独部分中的模式转换。
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公开(公告)号：US4034298A
公开(公告)日：1977-07-05
申请号：US623372
申请日：1975-10-17
申请人： Robert J. McFadyen , William Peil
发明人： Robert J. McFadyen , William Peil
摘要： An FM tuner having an improved automatic frequency control circuit and designed for use in an AM-FM receiver is described. The tuner employs a mixer transistor and an oscillator transistor connected in circuit so that they form a single series path across the bias source. This feature permits one to control conduction in both transistors by control of one and thus simplifies both biasing and mode conversion. Preferably, the transistor bias source and the source of AFC control potential are consolidated to save decoupling components. When the base of the mixer transistor is connected to the source through a low d.c. impedance, the AFC potential is transferred (less the mixer junction drop) to the collector of the oscillator transistor, where it provides sensitive automatic frequency control action. The circuit design uses a minimum of components.
摘要翻译： 描述了具有改进的自动频率控制电路并被设计用于AM-FM接收机的FM调谐器。 调谐器采用混合晶体管和连接在电路中的振荡晶体管，以便它们跨越偏置源形成单个串联路径。 该特征允许通过控制一个来控制两个晶体管的导通，从而简化偏置和模式转换两者。 优选地，晶体管偏置源和AFC控制电位的源被整合以保存去耦组件。 当混频器晶体管的基极通过低直流电源连接到源极时。 阻抗，AFC电位被传输（更少的混频器结降）到振荡晶体管的集电极，在那里它提供敏感的自动频率控制动作。 电路设计使用最少的组件。
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公开(公告)号：US4307334A
公开(公告)日：1981-12-22
申请号：US139946
申请日：1980-04-14
申请人： William Peil , Robert J. McFadyen
发明人： William Peil , Robert J. McFadyen
CPC分类号： H05B41/2822 , H01F38/02 , H02M3/3381 , H01F2029/143 , H01F2038/026 , H02M2001/0032 , Y02B70/16
摘要： A novel and economical transformer is described for use in a static inverter in association with one or two switching devices, typically transistors. The transformer produces an output for control of the associated switching device(s) which changes in sense as a function of the flux level in the transformer core. The arrangement is applicable to a figure "8" flux configuration such as is achieved from two "E" cores, and requires only a single aperture located at the base of the common branch. Control is effected by a single primary and single secondary winding wound through the aperture. With two switching devices, two apertures are normally provided. The core which supports a figure "8" flux configuration may take other more economical alternatives such as "I" core, "T" core or a single "E" core.
摘要翻译： 描述了一种新颖且经济的变压器，用于与一个或两个开关器件（通常是晶体管）相关联的静态逆变器中。 变压器产生用于控制相关开关装置的输出，其随着变压器铁芯中的通量水平而变化。 该布置可应用于诸如从两个“E”芯实现的图形“8”通量配置，并且仅需要位于公共支路的基座处的单个孔。 控制由绕过该孔的单个初级和次级次级绕组实现。 通过两个开关装置，通常提供两个孔。 支持数字“8”通量配置的核心可以采用其他更经济的替代方案，例如“I”核心，“T”核心或单个“E”核心。
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8.发明授权Arc lamp lighting unit with means to prevent prolonged application of starting potentials 失效电弧灯照明单元，具有防止启动电位延长应用的手段
公开(公告)号：US4282462A
公开(公告)日：1981-08-04
申请号：US85441
申请日：1979-10-16
申请人： William Peil , Robert J. McFadyen
发明人： William Peil , Robert J. McFadyen
摘要： The present invention relates to a lighting unit utilizing an energy efficient arc lamp as the main source of light supplemented by a standby filamentary lamp, the filament serving as a resistive ballast for the arc lamp during normal operation. The lighting unit is designed for functional similarity to an incandescent lamp, the filament providing immediate illumination when the lighting unit is first energized and continuing illumination until the arc lamp itself produces light. In accordance with the invention, if the arc lamp does not start within a predetermined period, the application of starting potentials produced through operation of a solid state switch and a high frequency step-up transformer is discontinued and the lighting unit rendered inactive. Exemplary means includes a positive temperature coefficient thermistor responsive to the temperature rise of the solid state switch. The solid state switch is connected in a normally off, monostable configuration and requires a trigger oscillator to generate a separate pulse for each switch conduction interval. The resistance rise in the thermistor is used to prevent trigger oscillations by causing saturation of the trigger oscillator transistor at a current level sufficient for self-heating of the thermistor. The solid state switch is latched in an off state until power is removed.
摘要翻译： 本发明涉及一种利用能量效率电弧灯作为主要光源的照明装置，该备用灯丝灯由正常工作中的灯丝用作电弧灯的电阻镇流器。 照明单元设计用于与白炽灯的功能相似，当照明单元第一次通电时，灯丝提供即时照明，并且持续照明直到电弧灯本身产生光。 根据本发明，如果在预定时间内没有启动电弧灯，则停止通过固态开关和高频升压变压器的操作产生的启动电位的施加，并且照明单元变得无效。 示例性装置包括响应于固态开关的温度升高的正温度系数热敏电阻。 固态开关连接成常闭，单稳态配置，并需要触发振荡器为每个开关导通间隔产生单独的脉冲。 热敏电阻的电阻上升用于通过使触发振荡晶体管的饱和度达到足以使热敏电阻自加热的电流水平来防止触发振荡。 固态开关被锁定在关闭状态，直到电源被去除。
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公开(公告)号：US3999138A
公开(公告)日：1976-12-21
申请号：US565717
申请日：1975-04-07
申请人： William Peil , Robert J. McFadyen
发明人： William Peil , Robert J. McFadyen
摘要： A detector for AM or FM signals is described. The detector employs a differentially connected emitter follower pair to which an in-phase and a phase-shifted signal are respectively applied. The emitter follower pair produces an output waveform with controllably spaced zero crossings which is the "greater of" the applied waveforms. For FM operation, the phase shift is made linearly frequency dependent, being in quadrature at resonance. In FM operation, the zero crossings are sensed to produce a succession of variable width unidirectional pulses whose widths are proportional to the frequency deviation. Amplitude variations in the variable width pulses may then be removed and integration in a filter with an audio frequency time constant recovers the FM modulation information. For AM operation, a phase shift of 180.degree. is used, producing full wave rectification. The AM information is then recovered from the rectified signal using the same integrating filter used for FM. The invention has preferred application to integrated circuit fabrication.
摘要翻译： 描述了用于AM或FM信号的检测器。 检测器采用分别施加同相和相移信号的差分连接的射极跟随器对。 射极跟随器对产生具有可控地间隔的零交叉的输出波形，其是施加的波形的“较大”。 对于FM操作，相位线性地取决于频率，在谐振时正交。 在FM操作中，检测过零点以产生一系列可变宽度单向脉冲，其宽度与频率偏差成正比。 然后可以去除可变宽度脉冲中的幅度变化，并且在具有音频频率时间常数的滤波器中的积分恢复FM调制信息。 对于AM操作，使用180°的相移，产生全波整流。 然后使用与FM相同的积分滤波器从整流信号中恢复AM信息。 本发明优选应用于集成电路制造。
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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
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。
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