公开(公告)号：US4728866A

公开(公告)日：1988-03-01

申请号：US904874

申请日：1986-09-08

申请人： Dennis Capewell ,  Donald Hausman ,  Aaron Jungreis ,  Joel S. Spira

发明人： Dennis Capewell ,  Donald Hausman ,  Aaron Jungreis ,  Joel S. Spira

IPC分类号： H02M5/453 ,  H02M1/08 ,  H02M1/44 ,  H02M5/293 ,  H05B37/02 ,  H05B39/04 ,  H05B41/392 ,  H05B37/00

CPC分类号： H02M1/44 ,  H02M5/293 ,  H05B39/048 ,  H05B41/3924 ,  Y10S315/04

摘要： A power control system for gas discharge lamps and other loads. According to a preferred embodiment, the system includes a main divertor in series or parallel with the load, and a variable divertor, which includes a controllably conductive device controlled by a control circuit, the variable divertor being selectively inserted in series with the load during each half cycle of the output voltage signal. The system obtains an improved load voltage waveform giving superior performance under reduced power output conditions. This system can be applied to a fluorescent lighting circuit having a plurality of conventional ballasts, achieving a dimming ratio of greater than 4 to 1, and can also be applied to other gas discharge lamp circuits, including high intensity discharge lamp circuits, to incandescent lamps, and to motors such as fan motors. It can further be applied to control the power supplied to solid-state switching units, including those having capacitive inputs. The system produces a waveform having no sharp voltage changes, and thus virtually no audible noise emanates from the load. Radiated and conducted EMI are significantly lower than with existing controls. The advantageous waveform is generated while maintaining an efficiency greater than about 95 percent.

公开(公告)号：US4894587A

公开(公告)日：1990-01-16

申请号：US45898

申请日：1987-05-04

申请人： Aaron Jungreis ,  Dennis Capewell ,  David G. Luchaco

发明人： Aaron Jungreis ,  Dennis Capewell ,  David G. Luchaco

IPC分类号： H05B41/392

CPC分类号： H05B41/3924 ,  Y10S315/04 ,  Y10S315/05

摘要： A high frequency dimming ballast dims to about 1 percent of rated output in a repeatable way so that parallel connected dimming ballasts will all produce the same light illumination when dimmed to a very low percentage of their rated light output. A first current sensor is connected in series with a semiconductor power switching device which is coupled to and controls power to the ballast. A second current sensor is connected directly to the lamp circuit to detect actual lamp current, particularly at low illumination conditions, for example at less than 10 percent of the rated light output. Lamp control under low illumination conditions is derived from the lamp current sensor and overrides control by the sensor in series with the transistor switch means.

摘要翻译： 高频调光镇流器以可重复的方式降至约1％的额定输出，使得并联连接的调光镇流器在调光到其额定光输出的非常低的百分比时都将产生相同的光照。 第一电流传感器与半导体功率开关器件串联连接，半导体功率开关器件与镇流器耦合并控制镇流器的功率。 第二电流传感器直接连接到灯电路以检测实际灯电流，特别是在低照度条件下，例如小于额定光输出的10％。 在低照度条件下的灯控制来自灯电流传感器，并且覆盖与晶体管开关装置串联的传感器的控制。

公开(公告)号：US08520420B2

公开(公告)日：2013-08-27

申请号：US12642448

申请日：2009-12-18

申请人： Aaron Jungreis ,  Antony Brinlee ,  Paul Garrity

发明人： Aaron Jungreis ,  Antony Brinlee ,  Paul Garrity

IPC分类号： H02M3/335

CPC分类号： H02M3/3376 ,  H02M2001/0032 ,  Y02B70/1433 ,  Y02B70/16

摘要： A power converter employing a controller configured to increase a dead time between conduction periods of first and second power switches therein and method of operating the same. In one embodiment, the power converter includes first and second power switches coupled to an input thereof, and a sensor configured to provide a sensed signal representative of at least one of a current level and a power level of the power converter. The power converter also includes a controller configured to increase a dead time between conduction periods of the first and second power switches when the sensed signal indicates a decrease of at least one of the current level and the power level of the power converter.

摘要翻译： 一种使用控制器的功率转换器，其配置为增加其中的第一和第二功率开关的导通周期之间的死区时间以及其操作方法。 在一个实施例中，功率转换器包括耦合到其输入的第一和第二功率开关，以及被配置为提供代表功率转换器的电流电平和功率电平中的至少一个的感测信号的传感器。 功率转换器还包括控制器，其被配置为当感测信号指示功率转换器的电流电平和功率电平中的至少一个的减小时，增加第一和第二功率开关的导通周期之间的死区时间。

公开(公告)号：US08488340B2

公开(公告)日：2013-07-16

申请号：US12870634

申请日：2010-08-27

申请人： Michael Zhang ,  Aaron Jungreis

发明人： Michael Zhang ,  Aaron Jungreis

IPC分类号： H02M3/335

CPC分类号： H02M1/4225 ,  H02M3/158 ,  H02M3/3376 ,  H02M2001/0048 ,  H02M2001/007 ,  Y02B70/126 ,  Y02B70/1425 ,  Y02B70/1433 ,  Y02B70/1491 ,  Y02P80/112

摘要： A regulated power apparatus is provided. The apparatus includes an input power converting circuit configured for receiving a rectified voltage and for generating an increased voltage. An intermediate power regulating circuit generates a regulated voltage that has a lower voltage than a minimum output voltage of the input power converting circuit. The intermediate power regulating circuit is coupled to receive the increased voltage. An output power converting circuit is coupled with the intermediate power regulating circuit. The output power converting circuit receives the regulated voltage and generates an output voltage that is lower than the regulated voltage. The output power converting circuit comprises a buck converter configured to operate at a fixed duty cycle. A regulation circuit is coupled with the intermediate power regulating circuit and coupled with the output power converting circuit.

摘要翻译： 提供稳压电源装置。 该装置包括：输入功率转换电路，被配置为接收整流电压并产生增加的电压。 中间功率调节电路产生具有比输入功率转换电路的最小输出电压低的电压的调节电压。 中间功率调节电路被耦合以接收增加的电压。 输出功率转换电路与中间功率调节电路耦合。 输出功率转换电路接收调节电压并产生低于调节电压的输出电压。 输出功率转换电路包括被配置为在固定占空比下操作的降压转换器。 调节电路与中间功率调节电路耦合并与输出功率转换电路耦合。

公开(公告)号：US20110305047A1

公开(公告)日：2011-12-15

申请号：US13050494

申请日：2011-03-17

申请人： Aaron Jungreis ,  Antony Brinlee ,  Paul Garrity

发明人： Aaron Jungreis ,  Antony Brinlee ,  Paul Garrity

IPC分类号： H02M3/335

CPC分类号： H02M3/33523 ,  H02M1/08 ,  Y02B70/1433

摘要： A power converter employing a control system configured to make multiple functional use of a circuit node therein and method of operating the same. In one embodiment, the power converter includes a power train including at least one power switch. The power converter also includes a control system including an opto-isolator circuit, including a resistor, configured to receive an output signal from the power converter and provide a feedback signal to a feedback node for the control system to provide a switch control signal for the at least one power switch. The control system also includes a current source configured to produce multiple voltage levels at the feedback node in accordance with the resistor, thereby enabling multiple functional uses of the feedback node.

摘要翻译： 一种采用控制系统的功率转换器，其配置为使得其中的电路节点的多个功能使用及其操作方法。 在一个实施例中，功率转换器包括包括至少一个功率开关的动力传动系。 功率转换器还包括控制系统，其包括光隔离器电路，其包括电阻器，其被配置为从功率转换器接收输出信号，并向控制系统的反馈节点提供反馈信号以提供用于控制系统的开关控制信号 至少一个电源开关。 控制系统还包括被配置为根据电阻器在反馈节点处产生多个电压电平的电流源，从而实现反馈节点的多个功能使用。

公开(公告)号：US07831401B2

公开(公告)日：2010-11-09

申请号：US11839411

申请日：2007-08-15

申请人： Aaron Jungreis

发明人： Aaron Jungreis

IPC分类号： G06F19/00

CPC分类号： H02M3/337 ,  Y02B70/1433

摘要： Generally, a DC/DC converter and its associated devices and processes are presented herein. The DC/DC converter may be a switched mode converter that includes a plurality of switching devices that couple between the first and second power supply rails. A transformer is coupled to the switching devices such that the switching devices exchange electrical energy through the transformer. A rectifier is coupled to the transformer to rectify the waveform from the transformer into a substantially DC output. The DC/DC converter also includes clamp diodes to relieve voltage stress on rectifier diodes. Resistors may be coupled in series with the clamp diodes to reduce a reset time of the DC/DC converter and thereby prevent catastrophic failure of the power supply during load transients. Additionally, the DC/DC converter may be configured with a power outage detection device that monitors gate drive signals of the converter.

摘要翻译： 通常，这里呈现DC / DC转换器及其相关的设备和过程。 DC / DC转换器可以是开关模式转换器，其包括耦合在第一和第二电源轨之间的多个开关装置。 变压器耦合到开关装置，使得开关装置通过变压器交换电能。 整流器耦合到变压器，以将来自变压器的波形整流成基本的DC输出。 DC / DC转换器还包括钳位二极管，以减轻整流二极管的电压应力。 电阻器可以与钳位二极管串联耦合，以减少DC / DC转换器的复位时间，从而防止负载瞬变期间电源的灾难性故障。 此外，DC / DC转换器可以配置有监视转换器的栅极驱动信号的停电检测装置。

公开(公告)号：US20100259100A1

公开(公告)日：2010-10-14

申请号：US12497351

申请日：2009-07-02

申请人： James Robert Hamstra ,  John MacAskill ,  Kieran Miller ,  Aaron Jungreis ,  Dan Gorcea

发明人： James Robert Hamstra ,  John MacAskill ,  Kieran Miller ,  Aaron Jungreis ,  Dan Gorcea

IPC分类号： H02J1/00

CPC分类号： H02M1/15 ,  Y10T307/305

摘要： Generally, a DC power filter and its associated components are presented herein. The DC power filter may operate in a telecommunications chassis between one or more electrical sources and one or more loads. A common mode noise shunt may be included to shunt noise from more than one of the electrical sources or loads together. Additionally, the DC power filter may include protection circuitry that is coupled to more than one of the electrical sources. The protection circuitry may include a combination of diodes and other transient voltage suppression devices.

摘要翻译： 通常，DC电源滤波器及其相关组件在此呈现。 DC电力滤波器可以在一个或多个电源和一个或多个负载之间的电信底盘中操作。 可以包括共模噪声分流器以将来自多个电源或负载的噪声分流在一起。 另外，DC电力滤波器可以包括耦合到多于一个电源的保护电路。 保护电路可以包括二极管和其它瞬态电压抑制装置的组合。

公开(公告)号：US08514593B2

公开(公告)日：2013-08-20

申请号：US12486520

申请日：2009-06-17

申请人： Antony Brinlee ,  Aaron Jungreis ,  Arturo Silva ,  Paul Garrity

发明人： Antony Brinlee ,  Aaron Jungreis ,  Arturo Silva ,  Paul Garrity

IPC分类号： H02M3/335

CPC分类号： H02M3/28 ,  H01F3/14

摘要： A power converter including a power switch, a controller for controlling a switching frequency thereof, and a magnetic device with a non-uniform gap. In one embodiment, the power converter includes a power switch and a magnetic device coupled to the power switch and having a non-uniform gap. The power converter also includes a controller having a detector configured to sense a condition representing an output power of the power converter. A control circuit of the controller is configured to control a switching frequency of the power switch as a function of the condition and control a duty cycle of the power switch to regulate an output characteristic of the power converter.

摘要翻译： 一种功率转换器，包括电源开关，用于控制其开关频率的控制器和具有不均匀间隙的磁性装置。 在一个实施例中，功率转换器包括电源开关和耦合到电源开关并具有非均匀间隙的磁性装置。 功率转换器还包括具有检测器的控制器，其被配置为感测表示功率转换器的输出功率的状态。 控制器的控制电路被配置为根据条件控制电源开关的开关频率，并且控制电源开关的占空比以调节功率转换器的输出特性。

公开(公告)号：US08027137B2

公开(公告)日：2011-09-27

申请号：US12497351

申请日：2009-07-02

申请人： James Robert Hamstra ,  John MacAskill ,  Kieran Miller ,  Aaron Jungreis ,  Dan Gorcea

发明人： James Robert Hamstra ,  John MacAskill ,  Kieran Miller ,  Aaron Jungreis ,  Dan Gorcea

IPC分类号： H02H9/00

CPC分类号： H02M1/15 ,  Y10T307/305

摘要： Generally, a DC power filter and its associated components are presented herein. The DC power filter may operate in a telecommunications chassis between one or more electrical sources and one or more loads. A common mode noise shunt may be included to shunt noise from more than one of the electrical sources or loads together. Additionally, the DC power filter may include protection circuitry that is coupled to more than one of the electrical sources. The protection circuitry may include a combination of diodes and other transient voltage suppression devices.

摘要翻译： 通常，DC电源滤波器及其相关组件在此呈现。 DC电力滤波器可以在一个或多个电源和一个或多个负载之间的电信底盘中操作。 可以包括共模噪声分流器以将来自多个电源或负载的噪声分流在一起。 另外，DC电力滤波器可以包括耦合到多于一个电源的保护电路。 保护电路可以包括二极管和其它瞬态电压抑制装置的组合。

公开(公告)号：US20100127737A1

公开(公告)日：2010-05-27

申请号：US12292721

申请日：2008-11-21

申请人： Aaron Jungreis

发明人： Aaron Jungreis

IPC分类号： H03B19/00

CPC分类号： H02M1/15 ,  H02J3/383 ,  H02M1/12 ,  H02M1/4208 ,  Y02B70/126 ,  Y02E10/563

摘要： An apparatus for generating a compensation signal for a power converter where the second harmonic ripple on the voltage bus is substantially removed from the compensation signal. The apparatus comprises a frequency-locked clock generator, a bus voltage data generator, a stack, and a compensation signal generator. The frequency-locked clock is coupled to the power converter voltage bus that contains harmonics of the AC line frequency. The clock generator frequency locks to the second harmonic of the AC line frequency and creates a system clock which is used for the synchronous operations throughout the apparatus. The bus-voltage data generator inputs a power converter scaled-bus voltage, generates bus-voltage data at a sampling rate which is determined by the coupled system clock. The output of the bus-voltage generator is input into a stack. The output of the stack is coupled to a summer to remove the second harmonic ripple, and is used by a modified PID′ filter to generate a compensation signal for a power converter controller.

摘要翻译： 一种用于产生功率转换器的补偿信号的装置，其中电压总线上的二次谐波纹波基本上从补偿信号中去除。 该装置包括频率锁定时钟发生器，总线电压数据发生器，堆栈和补偿信号发生器。 频率锁定时钟耦合到包含AC线路频率谐波的功率转换器电压总线。 时钟发生器频率锁定到AC线路频率的二次谐波，并创建一个系统时钟，用于整个设备的同步操作。 总线电压数据发生器输入功率转换器缩放总线电压，以由耦合的系统时钟确定的采样率产生总线电压数据。 总线电压发生器的输出被输入到堆栈中。 堆叠的输出耦合到加法器以去除二次谐波纹波，并且被修改的PID'滤波器用于为功率转换器控制器生成补偿信号。