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1. 发明授权

US08467200B2 Power converter for a power generator 有权
标题翻译：发电机功率转换器
公开(公告)号：US08467200B2
公开(公告)日：2013-06-18
申请号：US13094260
申请日：2011-04-26
申请人： Shangzhi Pan , Sayed Ali Khajehoddin , Praveen K. Jain , Alireza Bakhshai
发明人： Shangzhi Pan , Sayed Ali Khajehoddin , Praveen K. Jain , Alireza Bakhshai
IPC分类号： H02M1/12
CPC分类号： H02M7/4807 , H02J3/383 , H02M3/337 , Y02B70/1433 , Y02E10/563
摘要： Provided are methods, circuits, and systems for obtaining power from a power generator such as a photovoltaic cell or a fuel cell. The methods, circuits, and systems comprise converting substantially DC output power from the power generator into a high frequency AC voltage while rejecting or minimizing oscillations in the output power from the power generator; converting the high frequency AC voltage into a high frequency substantially sinusoidal voltage or current; and converting the high frequency substantially sinusoidal AC voltage or current into (i) a DC voltage or current, and (ii) a low frequency substantially sinusoidal AC voltage or current; wherein the high frequency substantially sinusoidal AC voltage or current is isolated from the DC voltage or current or the low frequency substantially sinusoidal AC voltage or current.
摘要翻译：提供了用于从诸如光伏电池或燃料电池的发电机获得电力的方法，电路和系统。方法，电路和系统包括将来自发电机的基本上DC输出功率转换成高频AC电压，同时抑制或最小化来自发电机的输出功率的振荡; 将高频交流电压转换成高频大致正弦电压或电流; 并将高频大体正弦交流电压或电流转换为（i）直流电压或电流，以及（ii）低频大致正弦交流电压或电流; 其中所述高频大体上正弦的AC电压或电流与所述直流电压或电流或所述低频大体正弦交流电压或电流隔离。

2. 发明申请

US20110264288A1 Maximum Power Point Tracking for a Power Generator 有权
标题翻译：发电机的最大功率点跟踪
公开(公告)号：US20110264288A1
公开(公告)日：2011-10-27
申请号：US13094207
申请日：2011-04-26
申请人： Sayed Ali KHAJEHODDIN , Praveen K. Jain , Alireza Bakhshai
发明人： Sayed Ali KHAJEHODDIN , Praveen K. Jain , Alireza Bakhshai
IPC分类号： G06F1/28
CPC分类号： G05F1/67 , Y02E10/58
摘要： A maximum power point tracking method and system for use with a power generator comprises sampling instantaneous output voltage and current of the power generator at a first instant in time and at a second instant in time to obtain first and second power samples, generating a reference voltage or current signal from a difference of the first and second power samples; comparing the reference voltage or current to the instantaneous power generator voltage or current and generating at least one gating signal; and repeating so as to minimize the difference of the first and second power samples; wherein the gating signal affects magnitude of the output voltage and current of the power generator; wherein the maximum power point is tracked when the difference signal is minimized. The power generator may be at least one photovoltaic cell, wind turbine, or fuel cell.
摘要翻译：用于发电机的最大功率点跟踪方法和系统包括在时间和时间的第二时刻对发电机的瞬时输出电压和电流进行采样，以获得第一和第二功率采样，产生参考电压或来自第一和第二功率样本的差的当前信号; 将参考电压或电流与瞬时发电机电压或电流进行比较并产生至少一个选通信号; 并重复以使所述第一和第二功率样本的差异最小化; 其中门控信号影响发电机的输出电压和电流的大小; 其中当差信号最小化时跟踪最大功率点。发电机可以是至少一个光伏电池，风力涡轮机或燃料电池。

3. 发明授权

US08612058B2 Maximum power point tracking for a power generator 有权
标题翻译：发电机的最大功率点跟踪
公开(公告)号：US08612058B2
公开(公告)日：2013-12-17
申请号：US13094207
申请日：2011-04-26
申请人： Sayed Ali Khajehoddin , Praveen K. Jain , Alireza Bakhshai
发明人： Sayed Ali Khajehoddin , Praveen K. Jain , Alireza Bakhshai
IPC分类号： G05D27/00
CPC分类号： G05F1/67 , Y02E10/58
摘要： A maximum power point tracking method and system for use with a power generator comprises sampling instantaneous output voltage and current of the power generator at a first instant in time and at a second instant in time to obtain first and second power samples, generating a reference voltage or current signal from a difference of the first and second power samples; comparing the reference voltage or current to the instantaneous power generator voltage or current and generating at least one gating signal; and repeating so as to minimize the difference of the first and second power samples; wherein the gating signal affects magnitude of the output voltage and current of the power generator; wherein the maximum power point is tracked when the difference signal is minimized. The power generator may be at least one photovoltaic cell, wind turbine, or fuel cell.
摘要翻译：用于发电机的最大功率点跟踪方法和系统包括在时间和时间的第二时刻对发电机的瞬时输出电压和电流进行采样，以获得第一和第二功率采样，产生参考电压或来自第一和第二功率样本的差的当前信号; 将参考电压或电流与瞬时发电机电压或电流进行比较并产生至少一个选通信号; 并重复以使所述第一和第二功率样本的差异最小化; 其中门控信号影响发电机的输出电压和电流的大小; 其中当差信号最小化时跟踪最大功率点。发电机可以是至少一个光伏电池，风力涡轮机或燃料电池。

4. 发明申请

US20110261593A1 Power Converter for a Power Generator 有权
标题翻译：电力转换器用于发电机
公开(公告)号：US20110261593A1
公开(公告)日：2011-10-27
申请号：US13094260
申请日：2011-04-26
申请人： Shangzhi Pan , Sayed Ali Khajehoddin , Praveen K. Jain , Alireza Bakhshai
发明人： Shangzhi Pan , Sayed Ali Khajehoddin , Praveen K. Jain , Alireza Bakhshai
IPC分类号： H02M3/335
CPC分类号： H02M7/4807 , H02J3/383 , H02M3/337 , Y02B70/1433 , Y02E10/563
摘要： Provided are methods, circuits, and systems for obtaining power from a power generator such as a photovoltaic cell or a fuel cell. The methods, circuits, and systems comprise converting substantially DC output power from the power generator into a high frequency AC voltage while rejecting or minimizing oscillations in the output power from the power generator; converting the high frequency AC voltage into a high frequency substantially sinusoidal voltage or current; and converting the high frequency substantially sinusoidal AC voltage or current into (i) a DC voltage or current, and (ii) a low frequency substantially sinusoidal AC voltage or current; wherein the high frequency substantially sinusoidal AC voltage or current is isolated from the DC voltage or current or the low frequency substantially sinusoidal AC voltage or current.
摘要翻译：提供了用于从诸如光伏电池或燃料电池的发电机获得电力的方法，电路和系统。方法，电路和系统包括将来自发电机的基本上DC输出功率转换成高频AC电压，同时抑制或最小化来自发电机的输出功率的振荡; 将高频交流电压转换成高频大致正弦电压或电流; 并将高频大体正弦交流电压或电流转换为（i）直流电压或电流，以及（ii）低频大致正弦交流电压或电流; 其中所述高频大体上正弦的AC电压或电流与所述直流电压或电流或所述低频大体正弦交流电压或电流隔离。

5. 发明授权

US5438497A Tertiary side resonant DC/DC converter 失效
标题翻译：三相谐振DC / DC转换器
公开(公告)号：US5438497A
公开(公告)日：1995-08-01
申请号：US59973
申请日：1993-05-13
申请人： Praveen K. Jain
发明人： Praveen K. Jain
IPC分类号： H02M3/337 , H02M3/335
CPC分类号： H02M3/337 , H02M2001/0064 , Y02B70/1433
摘要： Resonant DC/DC converters are disclosed. The DC/DC converters according to the present invention include a bridged inverter, a resonant circuit, a high frequency transformer and a rectifying circuit. The high frequency transformer has a tertiary winding. The resonant circuit consists of a series resonant branch connected to the transformer primary winding and a parallel resonant branch connected across the tertiary winding. The converters require less capacitive components and lend themselves well to miniaturization.
摘要翻译：公开了谐振DC / DC转换器。根据本发明的DC / DC转换器包括桥式逆变器，谐振电路，高频变压器和整流电路。高频变压器有三级绕组。谐振电路由连接到变压器初级绕组的串联谐振分支和跨三次绕组连接的并联谐振分支组成。这些转换器需要较少的电容元件，并适合小型化。

6. 发明授权

US09172299B2 Digital EMI filter 有权
标题翻译：数字EMI滤波器
公开(公告)号：US09172299B2
公开(公告)日：2015-10-27
申请号：US14112708
申请日：2012-04-19
申请人： Djilali Hamza , Praveen K. Jain
发明人： Djilali Hamza , Praveen K. Jain
IPC分类号： H02M1/12 , H02M1/44
CPC分类号： H02M1/44 , H02M1/12
摘要： The invention provides a digital active EMI filter that removes, minimizes, or reduces unwanted interference (i.e., EMI noise) generated by a power circuit such as, for example, a power converter. Digital active filtering includes digital sampling of the incident noise signal amplitude and frequency, discrete time conversion of the EMI noise source, processing (e.g., inverting) the digital signal, and then constructing an analog output signal (i.e., an EMI compensation signal) which is injected to the input of the power circuit. A digital EMI filter as described herein may be used in both differential-mode and common-mode configurations, and overcomes limitations of passive and active analog EMI filters.
摘要翻译：本发明提供一种数字有源EMI滤波器，其去除，最小化或减少由例如功率转换器的电力电路产生的不需要的干扰（即，EMI噪声）。数字有源滤波包括入射噪声信号幅度和频率的数字采样，EMI噪声源的离散时间转换，数字信号的处理（例如，反相），然后构建模拟输出信号（即EMI补偿信号），其中被注入到电源电路的输入端。这里描述的数字EMI滤波器可以用于差模和共模配置，并克服无源和有源模拟EMI滤波器的限制。

7. 发明授权

US08184456B1 Adaptive power converter and related circuitry 有权
标题翻译：自适应功率转换器及相关电路
公开(公告)号：US08184456B1
公开(公告)日：2012-05-22
申请号：US12198605
申请日：2008-08-26
申请人： Praveen K. Jain , Mohammed S. Agamy
发明人： Praveen K. Jain , Mohammed S. Agamy
IPC分类号： H02M3/335
CPC分类号： H02M5/29
摘要： A resonant power converter circuit stage can be configured to: i) receive a rectified voltage derived from an AC input voltage; ii) convert the rectified voltage to an internal voltage based on the application of a duty cycle that varies depending on the input voltage and the output dynamic load, and iii) convert the internal voltage to a DC output voltage for driving the dynamic load based on application of a switching frequency that varies depending on a dynamic load. The efficiency of the power converter system can be increased by setting the internal DC voltage magnitude to be load adaptive. Variation of the internal DC voltage depending on the dynamic load enables the resonant converter circuit to operate at a switching frequency near its optimum resonance frequency. This method results in constant power converter system efficiency over a wide range of loading. In order to further increase the light load efficiency interleaved resonant power converters with load, adaptive internal DC voltage are used.
摘要翻译：谐振功率转换器电路级可以被配置为：i）接收从AC输入电压导出的整流电压; ii）基于施加根据输入电压和输出动态负载而变化的占空比将整流电压转换为内部电压，以及iii）将内部电压转换为用于驱动动态负载的直流输出电压，基于应用根据动态负载而变化的开关频率。通过将内部直流电压幅度设置为负载自适应，可以提高功率转换器系统的效率。根据动态负载的内部直流电压的变化使得谐振变换器电路能够以接近其最佳谐振频率的开关频率工作。这种方法在广泛的负载范围内导致恒定的功率转换器系统效率。为了进一步增加轻载负载效率交流谐振功率转换器的负载，采用自适应内部直流电压。

8. 发明授权

US07592789B2 Power supply and related circuits 有权
公开(公告)号：US07592789B2
公开(公告)日：2009-09-22
申请号：US11644645
申请日：2006-12-22
申请人： Praveen K. Jain
发明人： Praveen K. Jain
IPC分类号： G05F1/569
CPC分类号： G06F1/26 , H02M3/158 , H02M3/1584 , H02M2003/1566
摘要： A controller circuit in a power supply system is configured to simultaneously control both a voltage regulator circuit and a dynamic power supply circuit. The controller circuit monitors voltage produced by the voltage regulator circuit. The voltage regulator circuit conveys power from a voltage source to a dynamic load such as a microprocessor, whose power consumption can change rapidly change during operation. Depending on a state (e.g., current value, trend, etc.) of the monitored voltage applied to the load by the voltage regulator circuit, the controller circuit can initiate activation of the dynamic power supply circuit in parallel with the voltage regulator circuit to selectively supply additional power to the load. Supplying additional power to the dynamic load during heavy load conditions prevents the regulated voltage supplied to the load from falling below a threshold value.

9. 发明申请

US20080157742A1 POWER SUPPLY AND CONTROLLER CIRCUITS 有权
标题翻译：电源和控制器电路
公开(公告)号：US20080157742A1
公开(公告)日：2008-07-03
申请号：US11969655
申请日：2008-01-04
申请人： Gary D. Martin , Praveen K. Jain
发明人： Gary D. Martin , Praveen K. Jain
IPC分类号： G05F1/00
CPC分类号： H02M3/1584 , H02M2003/1566
摘要： A power supply system includes multiple power converter phases. A controller (e.g., a processor device, ASIC) monitors an output voltage generated by a combination of multiple power converter phases that supply power to a load. Based on the monitoring, the controller determines: i) a magnitude of an error signal representing a relative difference between the output voltage and a predetermined setpoint value, and ii) a rate-of-change associated with the output voltage. The controller compares the rate-of-change to threshold criteria. In response to detecting that the rate-of-change associated with the output voltage exceeds a threshold value, the controller adjusts a time of turning on of a phase switch (e.g., a power switch configured to convey an input voltage to an inductor that in turn delivers energy to the load) in one or more of the multiple power converter phases depending on the magnitude of the error signal.
摘要翻译：电源系统包括多个电源转换器阶段。控制器（例如，处理器设备，ASIC）监视由向负载供电的多个功率转换器相位的组合产生的输出电压。基于监视，控制器确定：i）表示输出电压和预定设定值之间的相对差的误差信号的大小，以及ii）与输出电压相关联的变化率。控制器将变化率与阈值进行比较。响应于检测到与输出电压相关联的变化率超过阈值，控制器调节相位开关的接通时间（例如，被配置为将输入电压传送到电感器的电源开关的时间）根据误差信号的大小，在多个功率转换器相中的一个或多个中将负载转换为负载）。

10. 发明授权

US5157593A Constant frequency resonant dc/dc converter 失效
标题翻译：恒频谐振直流/直流转换器
公开(公告)号：US5157593A
公开(公告)日：1992-10-20
申请号：US676597
申请日：1991-03-28
申请人： Praveen K. Jain
发明人： Praveen K. Jain
IPC分类号： H02M3/28 , H02M3/337 , H02M7/537
CPC分类号： H02M3/337 , Y02B70/1433
摘要： A constant frequency full resonant mode dc/dc converter is provided, suitable for use in low voltage, high current dc power distribution systems. The converter comprises a full-bridge inverter, a resonant circuit, an output transformer, an output diode rectifier, a dc output filter, and a control circuit. The resonant circuit consists of a series branch and a parallel branch. The components of the resonant circuit are selected such that a sinusoidal voltage waveform is achieved across the parallel branch, and an overall lagging current is obtained at the output of the full-bridge inverter for a desired range of output voltage control and no-load to full-load operating conditions.
摘要翻译：提供恒频全谐振模式dc / dc转换器，适用于低电压，大电流直流配电系统。该转换器包括全桥逆变器，谐振电路，输出变压器，输出二极管整流器，直流输出滤波器和控制电路。谐振电路由串联支路和并联支路组成。选择谐振电路的部件，使得跨并联支路实现正弦电压波形，并且在全桥逆变器的输出端获得整体滞后电流，以获得期望的输出电压控制范围和空载到满载运行条件。

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