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1. 发明授权

US4416552A Correlation thermography 失效
标题翻译：相关热成像
公开(公告)号：US4416552A
公开(公告)日：1983-11-22
申请号：US311632
申请日：1981-10-15
申请人： Robert A. Hessemer, Jr. , Lloyd J. Perper
发明人： Robert A. Hessemer, Jr. , Lloyd J. Perper
IPC分类号： A61B5/00 , G01K11/00 , G01K11/22 , G01K1/00
CPC分类号： A61B5/015 , G01K11/006 , G01K11/22
摘要： Correlation thermography permits high resolution passive remote thermal radiation sensing for non-invasive temperature measurement of the interior of a body. At least two directional transducers are coupled to the surface of the body at different locations about the body in such a manner that their directional receiving patterns intersect. These transducers may be acoustic or electromagnetic transducers, but in any case are capable of receiving thermally-generated energy from inside the body and generating corresponding electrical signals. The intersection of the receiving patterns of the transducers defines a common volume which is relatively small, and the signals at each transducer originating from this common volume within the body exhibit a high degree of correlation. A multiplier receives the electrical signals produced by the transducers. A fixed or variable delay is interposed between at least one of the transducers and the multiplier. A low pass filter or integrator is connected to average the product output signal from the multiplier and thereby generate a correlation output signal which is a measure of the thermally-generated energy within the common volume of intersection of the directional receiving patterns of the transducers.
摘要翻译：相关热成像允许高分辨率无源远程热辐射感测，用于身体内部的非侵入性温度测量。至少两个方向传感器以相对于身体的不同位置的方式联接到身体的表面，使得它们的定向接收图案相交。这些传感器可以是声学或电磁换能器，但是在任何情况下都能够从身体内部接收热发生的能量并产生相应的电信号。换能器的接收图案的交点限定了相对较小的公共体积，并且来自身体内的该共同体积的每个换能器处的信号表现出高度的相关性。乘法器接收由换能器产生的电信号。在至少一个换能器和乘法器之间插入固定的或可变的延迟。连接低通滤波器或积分器以平均来自乘法器的乘积输出信号，从而产生相关输出信号，该相关输出信号是换能器的定向接收图案的公共交叉口内的热产生能量的量度。

2. 发明授权

US4005335A High frequency power source for fluorescent lamps and the like 失效
标题翻译：荧光灯用高频电源等
公开(公告)号：US4005335A
公开(公告)日：1977-01-25
申请号：US596069
申请日：1975-07-15
申请人： Lloyd J. Perper
发明人： Lloyd J. Perper
IPC分类号： H02M5/458 , H02M7/5383 , H02M7/53846 , H02M7/53862 , H05B41/285 , H05B41/29
CPC分类号： H02M7/53862 , H02M5/458 , H02M7/53838 , H02M7/53846 , H05B41/2855 , Y10S315/07
摘要： A power source for operating gas discharge lamps and other loads at high frequency, typically utilizing a 115 volt ac source rectified to provide a 150 volt dc input and providing a 20,000 hertz output. An inverter with a transistor current control for protection against transistor damage under open circuit, starting and no-load conditions, with low power consumption under no-load and with dimming capability. An inverter with a detector circuit connected across the feedback winding or an additional control winding for developing a control signal varying as a function of the feedback winding output, and a zener diode or other device for connecting the control signal to the base of the transistor in current controlling relation when the control signal exceeds a predetermined value.
摘要翻译：用于操作气体放电灯和其他高频负载的电源，通常利用整流的115伏交流电源来提供150伏直流输入并提供20,000赫兹输出。具有晶体管电流控制的逆变器，用于在开路，启动和空载条件下保护晶体管损坏，空载低功耗，具有调光能力。具有连接在反馈绕组上的检测器电路的逆变器或用于开发作为反馈绕组输出的函数变化的控制信号的附加控制绕组，以及用于将控制信号连接到晶体管的基极的齐纳二极管或其他器件当控制信号超过预定值时的电流控制关系。

3. 发明授权

US4538094A Lamp ballast with near unity power factor and low harmonic content 失效
标题翻译：灯泡镇流器具有近乎一致的功率因数和低谐波含量
公开(公告)号：US4538094A
公开(公告)日：1985-08-27
申请号：US522505
申请日：1983-08-12
申请人： Lloyd J. Perper
发明人： Lloyd J. Perper
IPC分类号： H05B41/18 , H05B37/02
CPC分类号： H05B41/18
摘要： A magnetic ballast circuit for a fluorescent lamp providing improved power factor, reduced harmonic content and increased efficiency. A ballast circuit with three inductances connected to a junction, preferably with the first and second inductances comprising a tapped autotransformer, with the third inductance connected between a line terminal and the tap, with the first inductance connected in series with a capacitance to the other line terminal, and with the second inductance connected to the load. The first inductance may be provided totally as part of the autotransformer, or may be supplemented with a second inductance in series. In an alternative embodiment, separate inductances may be utilized.
摘要翻译：一种用于荧光灯的电磁镇流器电路，提供改善的功率因数，减少谐波含量和提高效率。具有连接到结的三个电感的镇流器电路，优选地具有第一和第二电感，包括抽头自耦变压器，其中第三电感连接在线路端子和抽头之间，其中第一电感与另一条线路的电容串联端子，并且第二电感连接到负载。第一电感可以全部提供作为自耦变压器的一部分，或者可以用串联的第二电感补充。在替代实施例中，可以使用单独的电感。

4. 发明授权

US4017785A Power source for fluorescent lamps and the like 失效
标题翻译：荧光灯的电源等
公开(公告)号：US4017785A
公开(公告)日：1977-04-12
申请号：US611897
申请日：1975-09-10
申请人： Lloyd J. Perper
发明人： Lloyd J. Perper
IPC分类号： H02M3/338 , H02M5/458 , H05B41/282
CPC分类号： H02M5/458 , H02M3/3385 , H05B41/2821 , Y10S315/07
摘要： A power source for operating gas discharge lamps and other loads at high frequency, typically utilizing a 115 volt ac source rectified to provide a dc input in the order of 150 volts, and providing a 20,000 hertz output. An inverter with power supply, oscillator circuit and transformer, with conventional primary, secondary and feedback windings for operating the transistor oscillator. An additional output winding on the transformer with a rectifier and filter providing a supplemental dc supply connected to the main dc supply in parallel or in series to supplement a fluctuating main dc supply and maintain continuous oscillator operation while utilizing small filter capacitance and substantially reducing peak ac line current.
摘要翻译：用于在高频下操作气体放电灯和其它负载的电源，通常利用整流的115伏交流电源来提供大约150伏的直流输入，并提供20,000赫兹的输出。具有电源，振荡器电路和变压器的逆变器，具有用于操作晶体管振荡器的常规初级，次级和反馈绕组。变压器上的附加输出绕组具有整流器和滤波器，其提供并联或串联连接到主直流电源的补充直流电源，以补充波动的主要直流电源并且保持连续的振荡器操作，同时利用小的滤波电容并且基本上减小峰值交流线电流。

5. 发明授权

US4609852A Lamp ballast with near unity power factor and low harmonic content 失效
标题翻译：灯泡镇流器具有近乎一致的功率因数和低谐波含量
公开(公告)号：US4609852A
公开(公告)日：1986-09-02
申请号：US613233
申请日：1984-05-24
申请人： Lloyd J. Perper
发明人： Lloyd J. Perper
IPC分类号： H05B41/18 , H05B41/16
CPC分类号： H05B41/18
摘要： A magnetic ballast circuit for a fluorescent lamp providing improved power factor, reduced harmonic content and increased efficiency. A ballast circuit with three inductances connected at a junction, preferably with the first and second inductances comprising a tapped autotransformer, with the third inductance connected between a line terminal and the tap, with the first inductance connected in series with a capacitance to the other line terminal, and with the second inductance connected to the load. The first inductance may be provided totally as part of the autotransformer, or may be supplemented with a second inductance in series. In an alternative embodiment, separate inductances may be utilized. Alternative lamp filament power sources and alternative functionally equivalent core and winding configurations are disclosed.
摘要翻译：一种用于荧光灯的电磁镇流器电路，提供改善的功率因数，减少谐波含量和提高效率。具有三个电感的镇流器电路连接在一个结点处，优选地具有第一和第二电感，其包括抽头自耦变压器，其中第三电感连接在线路端子和抽头之间，第一电感与另一条线路的电容串联连接端子，并且第二电感连接到负载。第一电感可以全部提供作为自耦变压器的一部分，或者可以用串联的第二电感补充。在替代实施例中，可以使用单独的电感。公开了替代的灯丝灯丝电源和替代功能等效的芯线和绕组配置。

6. 发明授权

US4330736A Compensated current feedback oscillator ballast for fluorescent lamps and the like 失效
标题翻译：用于荧光灯的补偿电流反馈振荡器镇流器等
公开(公告)号：US4330736A
公开(公告)日：1982-05-18
申请号：US157879
申请日：1980-06-09
申请人： Lloyd J. Perper
发明人： Lloyd J. Perper
IPC分类号： H05B41/285 , H05B37/02 , H05B39/04 , H05B41/36
CPC分类号： H05B41/2855 , Y10S315/05 , Y10S315/07
摘要： A power source for operating gas discharge lamps and other loads at high frequency, typically utilizing a dc source or a rectified ac source to produce a high frequency output. An inverter with oscillator circuit and first transformer has the secondary or load winding connected to a second transformer which provides a feedback signal to the transistor of the oscillator circuit through another transistor which functions as a variable resistance in the base drive of the oscillator transistor for maintaining power to the load substantially constant. A third winding on the inverter transformer is used to provide a control signal to the base circuit of the variable resistance for protecting the circuit components during an open secondary or no load condition.
摘要翻译：用于在高频下操作气体放电灯和其它负载的电源，通常利用直流电源或整流交流电源产生高频输出。具有振荡器电路和第一变压器的逆变器具有连接到第二变压器的次级或负载绕组，该第二变压器通过另一个晶体管提供反馈信号到另一个晶体管，该晶体管在振荡晶体管的基极驱动中用作可变电阻，用于维持负载功率基本恒定。逆变器变压器上的第三绕组用于向基极电路提供可变电阻的控制信号，用于在开路次级或无负载状态期间保护电路部件。

7. 发明授权

US4088379A Variable permanent magnet suspension system 失效
标题翻译：可变永磁悬挂系统
公开(公告)号：US4088379A
公开(公告)日：1978-05-09
申请号：US709559
申请日：1976-07-28
申请人： Lloyd J. Perper
发明人： Lloyd J. Perper
IPC分类号： F16C39/06 , F16C39/00
CPC分类号： F16C32/0465 , F16C32/0444
摘要： A magnetic suspension system employing magnetic force-applying means associated with a movable object, in which electrical signals which are a function of at least the rate of change of displacement of said object are applied to said force appliers to restore the object to a reference position whenever it is displaced therefrom by external forces, and in which electrical signals are also applied to said force appliers to produce permanent magnetization therein sufficient to maintain said object in its stable equilibrium position without the application of appreciable power in the absence of further external forces tending to displace it therefrom. The force appliers may comprise loops of magnetically permeable material including as a part thereof a substantially cylindrical portion adapted to encircle a movable object and having a pole piece positioned to exert magnetic force on said object, said loop also being provided with first and second sections of permanently magnetizable material in separate arms thereof, and first and second magnetizing windings respectively encircling said separate arms.
摘要翻译：一种使用与可移动物体相关联的磁力施加装置的磁悬浮系统，其中至少所述物体的位移变化率的函数的电信号被施加到所述施力器以将所述物体恢复到参考位置每当其由外力从其移位时，并且其中电信号也被施加到所述施力器以产生永久磁化，足以在不存在进一步的外力的情况下将所述物体保持在其稳定的平衡位置，而不施加明显的功率从其移位。施力器可以包括导磁材料的环，其包括作为其一部分的基本上圆柱形的部分，其适于环绕可移动物体并且具有定位成在所述物体上施加磁力的极片，所述环还设置有第一和第二部分在其分离的臂中具有永久可磁化材料，以及分别环绕所述分离臂的第一和第二磁化绕组。

8. 发明授权

US5003231A Adaptive resonant ballast for discharge lamps 失效
标题翻译：放电灯用自适应谐振镇流器
公开(公告)号：US5003231A
公开(公告)日：1991-03-26
申请号：US336869
申请日：1989-04-12
申请人： Lloyd J. Perper
发明人： Lloyd J. Perper
IPC分类号： H05B41/288 , H05B41/38 , H05B41/392
CPC分类号： H05B41/2885 , H05B41/388 , H05B41/3921 , Y02B20/202 , Y02B20/204 , Y10S315/07
摘要： A control circuit utilizing the impedence transforming attributes of ballast/filter networks is disclosed for energizing high intensity gas discharge lamps, wherein the output amplitude and/or duty cycle of a power frequency waveform produced by a switching inverter is controlled using feedback techniques. A basic embodiment teaches the use of energy removal from the input inductor of a low pass ballast/filter positioned between a switching inverter operating at 30 kHz and a gas discharge lamp load to serve as a feedback source, while an alternate embodiment teaches the use of this feedback source as a signal for controlling the duty cycle of the constant frequency square waves produced by the inverter. These and other control circuits disclosed are particularly applicable for energizing high intensity discharge lamps of the types exhibiting very irregular characteristics, and for providing their desirable constant current controlling and protective features for the full range of lamp operating phases including lamp starting, constant power operation, and lamp restarting.
摘要翻译：公开了一种利用镇流器/滤波器网络的阻抗变换属性的控制电路，用于激励高强度气体放电灯，其中由开关逆变器产生的功率频率波形的输出幅度和/或占空比由反馈技术进行控制。基本实施例教导了使用来自位于在30kHz的切换逆变器和气体放电灯负载之间的低通镇流器/滤波器的输入电感器的能量去除以用作反馈源，而替代实施例教导了使用该反馈源作为用于控制由逆变器产生的恒定频率方波的占空比的信号。所公开的这些和其它控制电路特别适用于对具有非常不规则特性的类型的高强度放电灯进行激励，并且为包括灯起动，恒定功率操作在内的全范围灯操作阶段提供所需的恒流控制和保护特征，和灯重启。

9. 发明授权

US4127797A Inverter oscillator with current feedback 失效
标题翻译：变频器带电流反馈
公开(公告)号：US4127797A
公开(公告)日：1978-11-28
申请号：US824440
申请日：1977-09-19
申请人： Lloyd J. Perper
发明人： Lloyd J. Perper
IPC分类号： H02M3/338 , H05B41/285 , H05B39/02 , H05B39/04 , H05B41/36
CPC分类号： H02M3/3385 , H05B41/2855 , Y10S315/05 , Y10S315/07
摘要： A power source for operating gas discharge lamps and other loads at high frequency, typically utilizing a 120 volt ac source rectified to provide a 150 volt dc input and providing a 20,000 hertz output. An inverter with current feedback in place of the conventional voltage feedback providing voltage turn off and voltage turn on in less time and providing increased base current during the conduction time for reducing the voltage-current product and heat generated in the inverter. Voltage limiting and current limiting features are provided for the basic circuit. Inverter circuits with two transistors for increased loads are also provided.
摘要翻译：用于操作气体放电灯和其他高频负载的电源，通常利用120伏交流电源进行整流，以提供150伏直流输入并提供20,000赫兹输出。具有电流反馈的逆变器代替传统的电压反馈，在较短时间内提供电压关断和电压接通，并且在导通时间期间提供增加的基极电流，以减少逆变器中产生的电压 - 电流产物和热量。为基本电路提供限压和限流功能。还提供了具有两个用于增加负载的晶体管的逆变器电路。

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