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公开(公告)号：US5375052A
公开(公告)日：1994-12-20
申请号：US105503
申请日：1993-08-11
CPC分类号： H02M7/53806 , Y10T307/696
摘要： A power supply apparatus comprising a first apparatus for supplying power having a first power output, a second apparatus for supplying power having a second power output and a load monitoring apparatus for monitoring a third power output. The load monitoring apparatus has an input coupled to the third power output, and the load monitoring apparatus also includes a monitor output. A switching apparatus connects the first power output and the second power output to the third power output, wherein the switching apparatus has an input connected to the monitor output and switches in response to the monitor output.
摘要翻译： 一种电源装置，包括用于提供具有第一功率输出的电力的第一装置，用于提供具有第二功率输出的电力的第二装置和用于监测第三功率输出的负载监视装置。 负载监视装置具有耦合到第三电力输出的输入，并且负载监视装置还包括监视器输出。 开关装置将第一功率输出和第二功率输出连接到第三功率输出，其中开关装置具有连接到监视器输出的输入并响应于监视器输出而切换。
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公开(公告)号：US5267134A
公开(公告)日：1993-11-30
申请号：US764135
申请日：1991-09-19
申请人： Aziz Banayan
发明人： Aziz Banayan
CPC分类号： H02M7/53806 , H02M3/3374
摘要： A voltage and frequency converter device for converting a primary voltage and frequency from an electrical supply to a secondary voltage and frequency particularly useful in powering the timing mechanisms in appliances made to operate at the secondary voltage and frequency, includes a rectifier circuit for converting the alternating current oscillating at the primary frequency to direct current, circuitry for causing the current to oscillate at the second frequency and for converting the primary voltage to the secondary voltage. The output of the converter is preferably coupled only between the power source and the timing circuitry of the appliance but may also be coupled to the power circuitry for motors and the like provided the converter is further configured to generate a true sine wave output. The invention further includes a wiring configuration for a dwelling whereby the voltage and frequency converter is interconnected between the power source and the electrical wiring of the dwelling to provide the secondary voltage and frequency to at least one secondary outlet and the primary voltage and frequency to at least one primary outlet in the dwelling whereby electrical appliances which are made to operate on the secondary voltage and frequency can be utilized in the dwelling.
摘要翻译： 一种电压和频率转换器装置，用于将来自电源的初级电压和频率转换为对在次级电压和频率下工作的器具中的定时机构提供特别有用的次级电压和频率，包括用于将交替 电流以主频率振荡以引导电流，用于使电流以第二频率振荡并用于将初级电压转换为次级电压的电路。 转换器的输出优选地仅在电源和器具的定时电路之间耦合，但是也可以耦合到用于电动机等的电源电路，只要转换器进一步被配置为产生真正的正弦波输出。 本发明还包括用于住宅的布线配置，其中电压和频率转换器在电源和住宅的电线之间互连，以将次级电压和频率提供给至少一个次级出口，并将初级电压和频率提供给 在住宅中的至少一个主要出口，由此在二次电压和频率上操作的电器可以用在住宅中。
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13.发明授权Start circuit for adapting a constant current generator to a wide variety of loads 失效启动电路，用于使恒定电流发生器适应各种负载
公开(公告)号：US4890214A
公开(公告)日：1989-12-26
申请号：US196575
申请日：1988-05-20
申请人： Hideki Yamamoto
发明人： Hideki Yamamoto
IPC分类号： H02M3/28 , G05F1/46 , H02M3/337 , H02M7/5375
CPC分类号： H02M7/53806 , G05F1/468 , H02M3/3378
摘要： A start controlling circuit for delivering a start signal to a constant current generator to cause the latter to supply an output current to a load through which a load current flows. The load current is detected to produce a detection voltage indicative of the load current. A variable control voltage is converted into a first pulse sequence having a repetition period decreasing in response to a rise in the control voltage, and the first pulse sequence is processed into a second pulse sequence having a pulse width which increases in response to such a rise. The second pulse sequence is supplied to the constant current generator as the start signal. An error signal is produced representing the difference between the detection voltage and a gradually rising d.c. reference voltage. The error signal is amplified and applied as the control voltage. The reference voltage is varied when variations in the load result in a change in the load current.
摘要翻译： 一种启动控制电路，用于将起动信号传送到恒定电流发生器，以使后者向负载电流流过的负载提供输出电流。 检测负载电流以产生指示负载电流的检测电压。 可变控制电压被转换为具有响应于控制电压的上升而减小的重复周期的第一脉冲序列，并且第一脉冲序列被处理成具有响应于这种上升而增加的脉冲宽度的第二脉冲序列 。 第二脉冲序列作为起始信号提供给恒流发生器。 产生误差信号，代表检测电压和逐渐升高的直流电压之间的差值。 参考电压。 误差信号被放大并作为控制电压施加。 当负载变化导致负载电流变化时，参考电压会发生变化。
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14.发明授权AC voltage stabilizer easily convertible into uninterruptible power supply (UPS) 失效交流稳压器可轻松转换为不间断电源（UPS）
公开(公告)号：US4788451A
公开(公告)日：1988-11-29
申请号：US94332
申请日：1987-09-08
申请人： Hindrik Stoet
发明人： Hindrik Stoet
CPC分类号： H02M1/14 , H02M5/257 , H02M7/53806 , Y10T307/516 , Y10T307/527 , Y10T307/625
摘要： An electronic AC voltage stabilizer using a class B amplifier output stage which is fed by a full-wave rectified sinewave voltage. The input voltage to (the phase inverter of) the class B amplifier output stage is kept in phase with the aforesaid sinewave voltage, which causes the power losses in the output stage to be very low. As compared to other electronic AC stabilizers, the apparatus according to the invention offers high efficiency and simplicity. The AC stabilizer can easily be converted into a true uninterruptible power supply (UPS) by adding a battery which through a battery interface circuit connects the battery voltage, after it has been appropriately converted into a full wave rectified sinewave voltage, to the push pull amplifier output stage when a power network fails.
摘要翻译： 使用由全波整流正弦波电压馈送的B类放大器输出级的电子交流稳压器。 B类放大器输出级（的相位逆变器）的输入电压与上述正弦波电压保持同相，这导致输出级的功率损耗非常低。 与其他电子AC稳定器相比，根据本发明的装置提供高效率和简单性。 交流稳压器可以通过添加一个电池，通过电池接口电路将电池电压在适当地转换成全波整流正弦波电压之后，将其连接到推挽放大器，可以很容易地转换为真正的不间断电源 电源网络出现故障时的输出级。
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公开(公告)号：US4453193A
公开(公告)日：1984-06-05
申请号：US433467
申请日：1982-10-12
CPC分类号： H02M7/53806 , H02H7/122
摘要： Overcurrent protection is obtained in a push-pull network by circuitry repeatedly comparing signals indicative of the instantaneous current flow through the push-pull switching elements with a synchronized reference signal whose value is preferably made to decline during the ON periods of the current switches. Thus, the reference signal may initially be set relatively high to accommodate a moderately high in-rush transient and then to decline to lower levels over the remainder of the time the switching elements are on. At any time that the current signals exceed the compared to reference value, the corresponding current switch is deactivated as a protective measure.
摘要翻译： 在推挽网络中通过重复地将指示通过推挽式开关元件的瞬时电流的信号与同步的参考信号进行比较来获得过电流保护，该参考信号的值优选在当前开关的接通时段期间下降。 因此，参考信号可以最初被设置为相对较高以适应中等高的突发瞬态，然后在开关元件导通的剩余时间内降低到较低的电平。 在任何时候，当前信号超过与参考值相比较，相应的电流开关作为保护措施被停用。
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公开(公告)号：US4353115A
公开(公告)日：1982-10-05
申请号：US276275
申请日：1981-06-22
申请人： Ray Ruble , Werner S. Treitel
发明人： Ray Ruble , Werner S. Treitel
CPC分类号： H02M7/53806
摘要： A sinusoidal synthesizer is shown which produces a sinusoidal AC power output from a modulated pulse train. The pulse train is modulated by two independent feedback loops which each use the sinusoidal output as its reference. The first loop controls output voltage by a high gain negative feedback signal to a pulse width modulator, while the second loop shapes the sinusoidal output by a less than unity gain, positive feedback signal to a second pulse width modulator.
摘要翻译： 示出了正弦合成器，其产生来自调制脉冲串的正弦交流电力输出。 脉冲串由两个独立的反馈回路调制，每个反馈回路都使用正弦输出作为参考。 第一个环路通过高增益负反馈信号将输出电压控制到脉冲宽度调制器，而第二个环路将正弦输出通过小于1的增益，正反馈信号形成到第二个脉宽调制器。
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公开(公告)号：US4351020A
公开(公告)日：1982-09-21
申请号：US247643
申请日：1981-03-26
申请人： Andrea Leti , Enrico Valacca
发明人： Andrea Leti , Enrico Valacca
CPC分类号： H02M3/3388 , H02M7/53806
摘要： Two power transistors operating in push-pull, connected in series with respective halves of a transformer primary across a d-c source, are alternately rendered conductive by driving pulses generated during fractions of corresponding half-cycles of a square-wave oscillator. Two integrating networks, connected across these primary halves or across resistors in series therewith, work into a comparator whose output signal, reflecting a dissymmetry between the transistor currents, unbalances the square-wave oscillator to vary the relative width of the two sets of driving pulses until the dissymmetry substantially disappears.
摘要翻译： 两个功率晶体管通过在方波波形的相应半周期的分数阶段内产生的脉冲交替地在d-c源上与主变压器的相应半部串联连接而进行推挽操作。 两个集成网络连接在这些主要半部分或与其串联的电阻器之间，可以工作在比较器中，其输出信号反映了晶体管电流之间的不对称性，使方波振荡器不平衡，以改变两组驱动脉冲的相对宽度 直到不对称基本消失。
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18.发明授权
公开(公告)号：US4339791A
公开(公告)日：1982-07-13
申请号：US188433
申请日：1980-09-19
申请人： Daniel M. Mitchell
发明人： Daniel M. Mitchell
CPC分类号： H02M7/53806 , H02M7/4807
摘要： A variable duty cycle ultrasonic inverter is used to invert unregulated direct current into a high frequency variable pulse width modulated signal that is applied to a low frequency inverter by means of a high frequency transformer. The output of the low frequency is applied to an output filter where a feedback signal is coupled back to the variable duty cycle ultrasonic converter which is controlled by a comparison of the feedback signal and a sinusoidal reference signal. The sinusoidal reference signal is also used to control the low frequency inverter.
摘要翻译： 可变负载周期超声波逆变器用于将未调节的直流电转换成通过高频变压器施加到低频逆变器的高频可变脉宽调制信号。 低频的输出被施加到输出滤波器，其中反馈信号被耦合回可变占空比超声波转换器，其通过反馈信号和正弦参考信号的比较来控制。 正弦参考信号也用于控制低频逆变器。
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19.发明授权A.C. power supply circuit in combination with an A.C. source and a D.C. source 失效A.C.电源电路与A.C.源和D.C.源组合
公开(公告)号：US3925772A
公开(公告)日：1975-12-09
申请号：US48363574
申请日：1974-06-27
申请人： COM TEL INC
发明人： MILLER LOWELL E , NIELSEN GAIL R
CPC分类号： H02J9/062 , H02J7/0031 , H02J7/008 , H02M7/53806 , Y10T307/625
摘要： An A.C. power supply circuit for use with an A.C. source and a battery includes a full-wave rectifier for rectifying the A.C. signal produced by the A.C. source, a battery supply control circuit responsive to a control signal for coupling the battery to the output of the rectifier, an A.C. sensing circuit for applying a control signal to the battery supply control circuit if the amplitude of the signal produced by the A.C. source falls below a predetermined level, and an oscillator circuit for producing an oscillatory signal in response to the signal present on the output of the rectifier. A battery sensing circuit is also included for producing a second control signal if the charge on the battery falls below some predetermined level. In response to this second control signal, a battery charge circuit applies a rectified A.C. signal from the A.C. source to the battery. If the charge on the battery falls below a second lower predetermined level, a shutdown circuit applies a signal to the battery supply control circuit to prevent the control circuit from connecting the battery to the output of the rectifier.
摘要翻译： 与AC电源和电池一起使用的AC电源电路包括用于整流由AC电源产生的AC信号的全波整流器，响应用于将电池耦合到电池的输出的控制信号的电池供应控制电路 整流器，用于如果由AC电源产生的信号的幅度下降到预定电平以下时，向电池供给控制电路施加控制信号的AC感测电路，以及响应于存在的信号产生振荡信号的振荡电路 整流器的输出。 还包括电池感测电路，用于产生第二控制信号，如果电池上的电量低于某一预定水平。 响应于该第二控制信号，电池充电电路将来自交流电源的整流交流信号施加到电池。 如果电池上的电量低于预定值的第二下限，则关闭电路向电池供给控制电路施加信号，以防止控制电路将电池连接到整流器的输出。
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公开(公告)号：US3832623A
公开(公告)日：1974-08-27
申请号：US30750472
申请日：1972-11-17
CPC分类号： H02M7/53806
摘要： An inverter-converter power supply system with bistable means to alternately gate a pair of switching transistors, the transistors controlling current flow through opposite halves of a transformer winding from a DC voltage source. The transistors are crosscoupled by series connected RC circuits for rapid de-saturation and overload protection, while excessive transistor base voltage levels are prevented by diodes connected between the transistor bases and ground.
摘要翻译： 一种具有双稳态装置的逆变器转换器电源系统，用于交替地栅极一对开关晶体管，晶体管控制电流从直流电压源通过变压器绕组的相对两半。 晶体管通过串联连接的RC电路交叉耦合，用于快速去饱和和过载保护，而晶体管基极和地之间连接的二极管可防止晶体管基极电压过低。
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