-
公开(公告)号：US06233166B1
公开(公告)日：2001-05-15
申请号：US09453415
申请日：1999-12-03
IPC分类号： H02M110
CPC分类号： H02J9/061
摘要： Uninterrupted power supply system being connected to a power source through input terminals (11-1 and 11-2) and transforming the electric power received into a level of voltage and current appropriate for feeding a telecommunications equipment through output terminals (12-1 and 12-2). A recognising means (14) examines the electrical characteristics of the received power and, as a function of the results of the analysis, configures a determined conversion path between the input terminals (11-1 and 11-2) and the output terminals (12-1 and 12-2); to which purpose it generates a set of control signals (S1, S2, S3 and S4) which, respectively, activate a set of switching means (15-1, 15-2, 15-3 and 15-4).
摘要翻译： 不间断电源系统通过输入端子（11-1和11-2）连接到电源，并将接收到的电力转换成适合于通过输出端子（12-1和12）馈送电信设备的电压和电流 -2）。 识别装置（14）检查接收功率的电特性，并且根据分析结果的函数，在输入端（11-1和11-2）和输出端（12）之间配置确定的转换路径 -1和12-2）; 为此，它产生分别激活一组开关装置（15-1,15-2,15-3和15-4）的一组控制信号（S1，S2，S3和S4）。
-
公开(公告)号：US06777919B1
公开(公告)日：2004-08-17
申请号：US10089797
申请日：2002-06-26
IPC分类号： G05F316
CPC分类号： H02M3/335
摘要： Switched power supply converter for broad range of input voltages that comprises a first stage (11) connected in cascade with a second stage (21), such that a first voltage supplied from a voltage source is converted into a second voltage by means of a first switching element (11-3). The second voltage is transformed into a third DC voltage by the operation of the second stage (21). A control circuit (11-9) controls the duty cycle of the first switching element (11-3) so that the duty cycle varies between a first limit and a second limit of the duty cycle when the first voltage lies within a predetermined voltage range. The control circuit (11-9) sets the duty cycle to the first limit of the duty cycle or to the second limit of the duty cycle in the event of the first voltage being outside the predetermined range of voltage values.
摘要翻译： 用于宽范围输入电压的开关电源转换器，包括与第二级（21）级联连接的第一级（11），使得从电压源提供的第一电压通过第一级 开关元件（11-3）。 控制电路（11-9）控制第一开关元件（11-3）的占空比，使得占空比在第二级（21-3）之间的占空比在 当第一电压处于预定电压范围内时的占空比的第一限制和第二限制。 控制电路（11-9）在第一电压超出电压值的预定范围的情况下将占空比设置为占空比的第一极限或占空比的第二极限。
-
公开(公告)号：US6067240A
公开(公告)日：2000-05-23
申请号：US217826
申请日：1998-12-22
申请人： Antonio Fontan Tarodo , Enrique De La Cruz Moreno , Salvador Ollero Velasco , Javier Ara Gomez , Manuel Vazquez Lopez
发明人： Antonio Fontan Tarodo , Enrique De La Cruz Moreno , Salvador Ollero Velasco , Javier Ara Gomez , Manuel Vazquez Lopez
CPC分类号： H02J9/061 , H02M2001/008
摘要： A power distribution system that provides electric power to an electrical device and to an energy storage device. The system includes a rectifier connected to an alternating current mains network to provide a rectified sinusoidal voltage via power leads connected to a charging device that provides DC voltage to the energy storage device. In addition, the electrical device(s) are connected to the power leads and include a plurality of converters, each one being connected to at least one load. Each converter is connected to the power leads in order to supply a DC voltage to its respective load.
摘要翻译： 一种向电气设备和能量存储装置提供电力的配电系统。 该系统包括连接到交流电网的整流器，以通过连接到向能量存储装置提供直流电压的充电装置的电力线提供整流的正弦电压。 此外，电气设备连接到电源引线并且包括多个转换器，每个转换器连接到至少一个负载。 每个转换器连接到电源线，以便将DC电压提供给其相应的负载。
-
公开(公告)号：US6137697A
公开(公告)日：2000-10-24
申请号：US440058
申请日：1999-11-15
CPC分类号： H02M1/10 , H02M3/33592 , H02M7/217 , Y02B70/1475
摘要： Universal switched power converter connected to a voltage source and, based on the level of the voltage received, this is applied to a first primary circuit comprising a first switching device (14-1) or to a second primary circuit comprising a second switching device (15-1). Control means (PWM) adapt the conducting period of the switching device connected to input terminals for regulating an output voltage and adapt the conducting period of the switching device not connected to the input terminals for demagnetising the core of a transformer (T) during the non-conducting period of the switching device connected to the input terminals.
摘要翻译： 通用开关电源转换器连接到电压源，并且基于所接收电压的电平，将其应用于包括第一开关装置（14-1）的第一初级电路或包括第二开关装置 15-1）。 控制装置（PWM）适应连接到输入端子的开关装置的导通周期，用于调节输出电压，并适应不连接到输入端的开关装置的导通周期，以在非线性模式下对变压器（T）的磁芯进行去磁 连接到输入端子的开关装置的导通周期。
-
公开(公告)号：US06288918B1
公开(公告)日：2001-09-11
申请号：US09440059
申请日：1999-11-15
IPC分类号： H02M112
CPC分类号： H02M1/4208 , H02M2001/0096 , Y02B70/126
摘要： Switched power converter with hold-up time and harmonics reduction connected to an AC power mains through a first rectifier means (13) and connected to conversion means (19) supplying a regulated voltage. An energy storage means (16) connected in parallel with the rectifier means (13), absorbs or supplies current to the conversion means (19), by adapting the conducting periods of two switching devices in such a way that determines the voltage level on the storage means (16) and assures a sinusoidal current at input terminals (11, 12). The two switching devices are switched in a complementary manner by means of a first control means included in the energy storage means (16).
摘要翻译： 具有保持时间和谐波减小的开关功率转换器通过第一整流器装置（13）连接到交流电源，并连接到提供调节电压的转换装置（19）。一个能量存储装置（16）与 整流装置（13）通过调整两个开关装置的导通周期以确定存储装置（16）上的电压电平并确保输入端的正弦电流，来吸收或提供电流到转换装置（19） 端子（11,12）。两个开关装置通过包括在能量存储装置（16）中的第一控制装置互补地切换。
-
-
-
-
搜索结果
5 条记录 (耗时 0.01 秒)
