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1. 发明授权

US4943902A AC to DC power converter and method with integrated line current control for improving power factor 失效
标题翻译：交直流电源转换器和集成线路电流控制方法，提高功率因数
公开(公告)号：US4943902A
公开(公告)日：1990-07-24
申请号：US411261
申请日：1989-09-25
申请人： Alex J. Severinsky
发明人： Alex J. Severinsky
IPC分类号： H02M1/00 , H02M1/42 , H02M3/156
CPC分类号： H02M1/4225 , H02M3/156 , H02M2001/4291 , Y02B70/126 , Y02P80/112
摘要： An AC to DC power converter comprises an input filter for filtering the alternating current input and an output filter for filtering and smoothing the direct current power output to a load. The output alternating current of the input filter is rectified and electronically switched at a frequency much higher than the frequency of the alternating line current input. The rectified line current is sensed and provided to an integrator circuit whose output provides one control signal input of a pulse width modulator circuit. The pulse width modulator circuit drives the electronic switching an at the same time, provides an output to a discharge circuit for discharging the integrator circuit.
摘要翻译： AC到DC电力转换器包括用于滤波交流输入的输入滤波器和用于滤波和平滑到负载的直流功率输出的输出滤波器。输入滤波器的输出交流电流被整流并以比交流线路电流输入的频率高得多的频率进行电子切换。整流的线电流被感测并提供给积分器电路，其输出提供一个脉宽调制器电路的一个控制信号输入。脉冲宽度调制电路同时驱动电子开关a，向放电电路提供输出，以对积分电路进行放电。

2. 发明授权

US5075565A Two-phase uninterruptible power supply 失效
标题翻译：两相不间断电源
公开(公告)号：US5075565A
公开(公告)日：1991-12-24
申请号：US670412
申请日：1991-03-15
申请人： Alex J. Severinsky , Sundar Rajagopalan
发明人： Alex J. Severinsky , Sundar Rajagopalan
IPC分类号： H02J9/06
CPC分类号： H02J9/062 , Y10T307/625
摘要： Two single phase uninterruptible power supplies are coupled together and controlled such that the two-phase output voltage is matched in frequency and phase with the electrical power provided by the electric utility. The phase difference between the electric utility power lines is measured and stored as a reference signal. When electrical power from the electric utility is lost, the stored reference signal is used to control a master and slave UPS to deliver two-phase power having the same frequency and phase.
摘要翻译：两个单相不间断电源耦合在一起并进行控制，使得两相输出电压与电力公司提供的电力在频率和相位上匹配。电力线之间的相位差被测量并存储为参考信号。当电力公司的电力损失时，存储的参考信号用于控制主从UPS提供具有相同频率和相位的两相电力。

3. 发明授权

US4974141A AC to DC power converter with input current waveform control for buck-boost regualtion of output 失效
标题翻译：交直流电源转换器，具有输入电流波形控制，用于降压升压输出
公开(公告)号：US4974141A
公开(公告)日：1990-11-27
申请号：US394115
申请日：1989-08-15
申请人： Alex Severinsky , Kaushik Rajashekara
发明人： Alex Severinsky , Kaushik Rajashekara
IPC分类号： H02M1/00 , H02M1/42 , H02M3/158
CPC分类号： H02M1/4208 , H02M3/1582 , Y02B70/126
摘要： An AC to DC power converter comprises an imput filter for filtering the alternating current input and an output filter for filtering and smoothing the direct current power output to a load. The output alternating current of the input filter is rectified and electronically switched by buck and boost switching circuits at a frequency much higher than the frequency of the alternating line current input. The rectified line current is sensed and provided to a control circuit which controls the operation of the buck and boost switching such that the power line current will follow a predetermined reference voltage waveform.
摘要翻译： AC到DC电力转换器包括用于对交流输入进行滤波的输入滤波器和用于滤波和平滑到负载的直流功率输出的输出滤波器。输入滤波器的输出交流电流被整流并由降压和升压开关电路以比交流线路电流输入的频率高得多的频率进行电子切换。经整流的线路电流被感测并提供给控制电路，该控制电路控制降压和升压开关的操作，使得电力线电流将遵循预定的参考电压波形。

4. 发明授权

US4816982A AC to DC power converter with integrated line current control for improving power factor 失效
标题翻译：交直流电源转换器集成线路电流控制，提高功率因数
公开(公告)号：US4816982A
公开(公告)日：1989-03-28
申请号：US123720
申请日：1987-11-23
申请人： Alex J. Severinsky
发明人： Alex J. Severinsky
IPC分类号： H02M1/00 , H02M1/42 , H02M3/156 , H02M7/217
CPC分类号： H02M1/4225 , H02M3/156 , H02M2001/4291 , Y02B70/126 , Y02P80/112
摘要： An AC to DC power converter comprises an input filter for filtering the alternating current input and an output filter for filtering and smoothing the direct current power output to a load. The output alternating current of the input filter is rectified and electronically switched at a frequency much higher than the frequency of the alternating line current input. The rectified line current is sensed and provided to an integrator circuit whose output provides one control signal input of a pulse width modulator circuit. The pulse width modulator circuit drives the electronic switching and at the same time, provides an output to a discharge circuit for discharging the integrator circuit.
摘要翻译： AC到DC电力转换器包括用于滤波交流输入的输入滤波器和用于滤波和平滑到负载的直流功率输出的输出滤波器。输入滤波器的输出交流电流被整流并以比交流线路电流输入的频率高得多的频率进行电子切换。整流的线电流被感测并提供给积分器电路，其输出提供一个脉宽调制器电路的一个控制信号输入。脉宽调制电路驱动电子开关，同时向放电电路提供放电电路的输出。

5. 发明授权

US4964029A AC to DC power converter with input current waveform control for buck-boost regulation of output 失效
标题翻译： AC至DC电源转换器，具有输入电流波形控制，用于降压 - 升压调节输出
公开(公告)号：US4964029A
公开(公告)日：1990-10-16
申请号：US195160
申请日：1988-05-18
申请人： Alex Severinsky , Kaushik Rajashekara
发明人： Alex Severinsky , Kaushik Rajashekara
IPC分类号： H02M1/00 , H02M1/42 , H02M3/158
CPC分类号： H02M1/4208 , H02M3/1582 , Y02B70/126 , Y02P80/112
摘要： An AC to DC power converter comprises an input filter for filtering the alternating current input and an output filter for filtering and smoothing the direct current power output to a load. The output alternating current of the input filter is rectified and electronically switched by buck and boost switching circuits at a frequency much higher than the frequency of the alternating line current input. The rectified line current is sensed and provided to a control circuit which controls the operation of the buck and boost switching such that the power line current will follow a predetermined reference voltage waveform.
摘要翻译： AC到DC电力转换器包括用于滤波交流输入的输入滤波器和用于滤波和平滑到负载的直流功率输出的输出滤波器。输入滤波器的输出交流电流被整流并由降压和升压开关电路以比交流线路电流输入的频率高得多的频率进行电子切换。经整流的线路电流被感测并提供给控制电路，该控制电路控制降压和升压开关的操作，使得电力线电流将遵循预定的参考电压波形。

6. 发明授权

US4956600A High frequency current detector for a low frequency line 失效
标题翻译：用于低频线路的高频电流检测器
公开(公告)号：US4956600A
公开(公告)日：1990-09-11
申请号：US214266
申请日：1988-07-01
申请人： Alex J. Severinsky
发明人： Alex J. Severinsky
IPC分类号： G01R19/04
CPC分类号： G01R19/04
摘要： A line isolated current detector for detecting low frequency peak to peak currents on a high frequency chopped line with a first series diode and resistor detecting positive waves and a second series diode and resistor detecting negative waves. First and second capacitors across the first and second resistors, respectively, temporarily store positive and negative detected waves. A third series diode and resistor connected in parallel across the first series diode and resistor and a fourth series diode and resistor connected in parallel across the second series diode and resistor allows faster charging and slower discharging of the capacitors. This allow the capacitors to charge waveforms quick enough to use a high frequency current transformer sensing a high frequency chopped line and discharge waveform slow enough to reconstruct the low frequency waveform before high frequency chopping to allow accurate current measurements of direct current or low frequency currents using a current transformer.
摘要翻译：一个线路隔离电流检测器，用于检测高频斩波线上的低频峰值电流，其中第一串联二极管和电阻检测正波，第二串联二极管和电阻检测负波。分别跨第一和第二电阻器的第一和第二电容器临时存储正和负检测波。在第一串联二极管和电阻器并联并联的第三串联二极管和电阻器以及并联在第二串联二极管和电阻器上并联的第四串联二极管和电阻允许更快的充电和较慢的电容放电。这允许电容器快速充电波形，使用高频电流互感器感测高频斩波线和放电波形足够慢，以便在高频斩波之前重建低频波形，以允许直流或低频电流的精确电流测量，使用电流互感器。

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