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21. 发明公开

EP2321892A1 SCHALTNETZTEIL MIT SELBST OPTIMIERENDEM WIRKUNGSGRAD 有权
标题翻译：带有自OPTIMIERENDEM效率的开关电源
公开(公告)号：EP2321892A1
公开(公告)日：2011-05-18
申请号：EP09778174.4
申请日：2009-08-28
申请人： Phoenix Contact GmbH & Co. KG
发明人： REMMERT, Guido
IPC分类号： H02M3/157 , H03K17/14 , H02M3/335
CPC分类号： H03K17/14 , H02M1/4225 , H02M3/28 , H02M3/33592 , H02M2001/007 , H03K2217/0036 , Y02B70/126 , Y02B70/1475
摘要： In order to increase efficiency, the invention provides for a switched-mode power supply (100), which comprises input connections (101, 102) for receiving an input voltage and/or an input current, output connections (103, 104) for providing an output voltage and/or an output current, a circuit arranged between the input and output connections for current and/or voltage conversion comprising at least one controllable switch, a control unit (200) for activating the at least one controllable switch by means of at least one pulse width modulation signal having a variable frequency and a variable duty cycle, and measuring devices (151, 141, 153, 143) connected to the control unit (200), at least designed to measure the input amperage, the input voltage, the output amperage, and the output voltage, wherein the control unit (200) is designed to monitor the efficiency of the switched-mode power supply (100) by means of measured values of the connected measuring devices, and to optimize the efficiency by means of a first digital control circuit by activating the at least one controllable switch. The invention further provides for a method for operating such a switched-mode power supply (100).

22. 发明公开

EP2173025A1 SWITCHING POWER UNIT 审中-公开
标题翻译：开关电源
公开(公告)号：EP2173025A1
公开(公告)日：2010-04-07
申请号：EP08739876.4
申请日：2008-04-04
申请人： Murata Manufacturing Co. Ltd.
发明人： UNO, Yoshiyuki , TOKUGAWA, Tomokuni , HOSOTANI, Tatsuya
IPC分类号： H02M3/28
CPC分类号： H02M1/4225 , H02M3/28 , H02M2001/0006 , H02M2001/008 , Y02B70/126
摘要： A digital signal processing circuit (15) which performs average current control, for example, is disposed on a secondary side of a transformer (T1) of an isolated DC-DC convertor (50), and a switching control signal output from the digital signal processing circuit (15) is transmitted to a switching element (Ql) included in a PFC convertor (40) through an isolated drive circuit (14). The digital signal processing circuit (15) obtains an average value of currents supplied to an inductor L1 in accordance with a voltage output from a bias winding (Ls) of the inductor (L1) or an output from a secondary side of a current transformer (T2) which detects a drain current of the switching element (Ql). Furthermore, the average value of the currents follows a waveform (full-wave rectification sine wave) of an input voltage Vi.
摘要翻译：例如，执行平均电流控制的数字信号处理电路（15）设置在隔离DC-DC转换器（50）的变压器（T1）的次级侧，并且从数字信号输出开关控制信号处理电路（15）通过隔离驱动电路（14）被传输到包括在PFC转换器（40）中的开关元件（Q1）。数字信号处理电路（15）根据从电感器（L1）的偏置绕组（Ls）输出的电压或者从电流互感器（L1）的次级侧输出的电压来获得提供给电感器L1的电流的平均值 T2），其检测开关元件（Q1）的漏极电流。此外，电流的平均值遵循输入电压Vi的波形（全波整流正弦波）。

23. 发明授权

EP1290793B1 BI-DIRECTIONAL CURRENT SOURCE 有权
标题翻译：双向功率源
公开(公告)号：EP1290793B1
公开(公告)日：2009-04-29
申请号：EP01933258.4
申请日：2001-05-10
申请人： Honeywell International Inc.
发明人： ZAPPACOSTA, Ernest, E., II
IPC分类号： H03K17/00
CPC分类号： H03K17/691 , H02M3/28 , H02M7/48 , H03K17/6872
摘要： A bi-directional current circuit disposed between two power souces and a load. A first switch and a second switch each connect th load to one of the power sources respectively, whereby when the first switch is closed and the second switch is open current flows to the load in a first direction and when the first switch is open and the second switch is closed current flows to the load in a second direction opposite to the first direction.

24. 发明公开

EP1881580A1 DC/DC CONVERTER 审中-公开
标题翻译： DC / DC转换器
公开(公告)号：EP1881580A1
公开(公告)日：2008-01-23
申请号：EP05738946.2
申请日：2005-05-12
申请人： SHINDENGEN ELECTRIC MANUFACTURING CO., LTD.
发明人： KOBAYASHI, Kimiyoshi
IPC分类号： H02J7/34 , H02M3/28
CPC分类号： H02J7/34 , H02J7/35 , H02J2001/004 , H02M3/28 , Y10T307/414 , Y10T307/505 , Y10T307/511 , Y10T307/516
摘要： The present invention provides a novel DC-DC converter in which, by achieving constant power control that sets power supply on an output side to be equal to supply power of a fuel cell on an input side, a cell charging current is set to be constant, components are reduced, and stable charging is performed. In a DC-DC converter using, as an input source (Vfc), a fuel cell, a solar cell, or the like, having a relatively large output impedance in a power-supply mode, an arbitrary load (Ro) and secondary battery (B), based on magnetic coupling in which voltage values are determined by a turns ratio between those wound around a winding, are provided as outputs, a second converter (30) is connected between an output of the secondary battery and the load. In addition, a current control circuit (10) connected to the secondary battery is configured to perform control so that, when a current in the load decreases due to an operation of the magnetic coupling, by increasing a charging current which flows into the secondary battery, and, when the current in the load increases, by decreasing the charging current to the secondary battery, an output voltage of the secondary battery is maintained at a set drooping voltage.
摘要翻译：本发明提供一种新型DC-DC转换器，其中通过实现将输出侧的电源设置为等于输入侧的燃料电池的供电的恒定功率控制，将电池充电电流设置为恒定，部件减少，并且执行稳定的充电。在以供电模式具有较大输出阻抗的燃料电池，太阳能电池等作为输入源（Vfc）的DC-DC转换器中，任意负载（Ro）和二次电池（B）中，基于其中电压值由卷绕在绕组上的匝数比确定的磁耦合作为输出提供，第二转换器（30）连接在二次电池的输出和负载之间。另外，连接到二次电池的电流控制电路（10）被配置为执行控制，使得当负载中的电流由于磁耦合的操作而降低时，通过增加流入二次电池的充电电流并且当负载中的电流增加时，通过降低流向二次电池的充电电流，二次电池的输出电压保持在设定的下垂电压。

25. 发明公开

EP1798846A1 Elektrisches Gerät mit Batteriefach und Netzteil 审中-公开
标题翻译： ElektrischesGerätmit Batteriefach und Netzteil
公开(公告)号：EP1798846A1
公开(公告)日：2007-06-20
申请号：EP06123286.4
申请日：2006-10-31
申请人： GIRA Giersiepen GmbH & Co. KG
发明人： Kemmann, Harald
IPC分类号： H02M7/00
CPC分类号： H01R31/065 , H02J9/06 , H02M3/28 , H02M7/003
摘要： Die Erfindung betrifft ein Elektrisches Gerät (1) mit einem Gerätegehäuse (2) und einem Aufnahmeraum (4) für eine aus einer oder mehreren Batterie- und/oder Akkuzellen bestehende Gerätebatterie zur netzunabhängigen Spannungsversorgung mit einer Gleichspannung sowie mit Gerätekontakten zur elektrischen Kontaktierung von korrespondierenden Batteriekontakten. Hierbei ist ein in den Aufnahmeraum (4) eingesetztes Netzteil (10) vorgesehen, das primärseitig mit einer Netzspannung (U 1 ) verbindbar ist, und das sekundärseitig für die benötigte Gleichspannung (U 2 ) ausgelegt ist und Kontaktelemente (12a, 12b) zum Kontaktieren der Gerätekontakte aufweist.
摘要翻译：该装置具有用于主电池的保持室，具有用于提供直流电压的一组电池和/或可充电电池单元，以及用于电接触相应的电池触点的装置触点。电源（10）可移除地插入到室中，其中电源与初级侧的电源电压连接，并且被设计为在次级侧提供必要的直流电压。电源具有用于接触设备触点的接触单元（12a，12b）。还包括用于插入到电气设备的电池保持室中的电源的独立权利要求。

26. 发明授权

EP1122872B1 Power supply apparatus for electronic unit 有权
标题翻译：电源电子部
公开(公告)号：EP1122872B1
公开(公告)日：2007-05-23
申请号：EP01300914.7
申请日：2001-02-01
申请人： SONY CORPORATION
发明人： Shirato, Keiji , Kimoto, Tetsuya
IPC分类号： H02M3/28 , H04N5/63 , H04B1/16 , H02J9/00
CPC分类号： H02M3/28 , G06K19/0705 , H02M2001/0032 , H04N5/63 , H04W52/0225 , Y02B70/16 , Y02D70/00
摘要： When an electronic unit is in a standby state, a standby circuit, such as a control microcomputer (122) which receives a signal from a remote-control transmitter (126), is operated by an electric power supplied from an electricity accumulating section (121) built in a power-supply circuit to make power consumption to zero in the standby state.

27. 发明公开

EP1708343A2 Power supply apparatus, and image forming apparatus having the same 审中-公开
标题翻译： Stromversorgungsvorrichtung，undBilderzeugungsgerätmit derselben
公开(公告)号：EP1708343A2
公开(公告)日：2006-10-04
申请号：EP06004962.4
申请日：2006-03-10
申请人： CANON KABUSHIKI KAISHA
发明人： Yamaguchi, Atsuhiko , Mano, Hiroshi , Nagasaki, Osamu , Yasukawa, Kouji
IPC分类号： H02M3/156
CPC分类号： H02M3/28 , G03G15/80 , H02M1/14 , H02M3/156 , H02M2001/008
摘要： In a power supply apparatus including a plurality of power supply circuits, each of the power supply circuits has a piezoelectric transformer, a rectification element which rectifies and smoothes a voltage output from the piezoelectric transformer in accordance with a load and outputs the voltage, a voltage-controlled oscillator which controls the frequency of an output signal in accordance with an input control signal, and a power supply voltage supply element which is driven by a signal output from the voltage-controlled oscillator and supplies a power supply voltage to the piezoelectric transformer. One power supply circuit includes a resonance frequency change unit which is connected to the output side of the piezoelectric transformer. The resonance frequency change unit drives the piezoelectric transformer of the power supply circuit at a driving frequency which is different from the driving frequency of the piezoelectric transformer in another power supply circuit by shifting the peak of the resonance frequency.
摘要翻译：在包括多个电源电路的电源设备中，每个电源电路具有压电变压器，整流元件，其根据负载对从压电变压器输出的电压进行整流和平滑，并输出电压控制的振荡器，其根据输入控制信号控制输出信号的频率;以及电源电压供应元件，其由从压控振荡器输出的信号驱动并将电源电压提供给压电变压器。一个电源电路包括连接到压电变压器的输出侧的谐振频率改变单元。谐振频率改变单元通过移位谐振频率的峰值，以不同于另一个电源电路中的压电变压器的驱动频率的驱动频率驱动电源电路的压电变压器。

28. 发明公开

EP1413038A4 INDUCTOR CURRENT SENSING IN ISOLATED SWITCHING REGULATORS AND RELATED METHODS 有权
标题翻译： INDUKTIVITÄTSSTROMMESSUNG在孤立的开关稳压器和相关程序
公开(公告)号：EP1413038A4
公开(公告)日：2006-08-16
申请号：EP02746807
申请日：2002-06-28
申请人： POWER ONE INC
发明人： BRKOVIC MILIVOJE SLOBODAN
IPC分类号： H02M3/28 , H02M3/335 , H02M3/337
CPC分类号： H02M3/28 , H02M3/33576 , H02M3/337 , H02M3/3376 , H02M2001/0009
摘要： A switching regulator includes at least two power switches (S3, S4) and two rectifier switches (S1,S2), power transformer (T1) having a primary (NP) and secondary windings (NS1, NS2), control circuit (20) for generating control pulses for the power switches, an inductor (Lo) for providing output current to the load and connected, and a current sensor coupled to the secondary windings and the inductor for sensing current passing through the inductor. The current sensor preferably includes a first (R1) and second (R2) resistor and a capacitor (CF) connected together, and provides a sensed voltage and its output proportional to the product of output current of the inductor and inherent DC resistance of the inductor and the secondary windings. The current sensor is coupled to the control circuit for regulation and protecting the switching regulator against overload or short circuit conditions.

29. 发明公开

EP1627461A2 POWER CONVERTER ARCHITECTURE AND METHOD FOR INTEGRATED FUEL CELL BASED POWER SUPPLIES 审中-公开
标题翻译：基于燃料电池为一体的电源供电转换器的结构和方法
公开(公告)号：EP1627461A2
公开(公告)日：2006-02-22
申请号：EP04729804.7
申请日：2004-04-28
申请人： NuCellSys GmbH
发明人： ZHU, Lizhi , HAMPO, Richard, J. , DAVIS, Roy, I. , VAN DYKE, John, M. , WELLS, Brian, W.
IPC分类号： H02M3/28 , H02J7/34 , H01M8/04
CPC分类号： B60L11/1887 , H01M8/0432 , H01M8/04388 , H01M8/04395 , H01M8/04604 , H01M8/04753 , H01M8/04768 , H01M8/0494 , H01M8/04947 , H01M8/04955 , H01M16/006 , H01M2250/20 , H02J7/34 , H02J2001/004 , H02M3/28 , Y02T90/32 , Y02T90/34
摘要： A fuel cell based power supply comprises a main power converter architecture that allows the fuel cell stack to operate independently of a desired output voltage. The fuel cell stack may be directly connected to the main power converter eliminating high current switches and diodes. Switches are operable to selectively power an auxiliary component such as a cooling fan to the fuel cell stack or to a storage device via an auxiliary power converter. A single auxiliary power converter can replace a dedicated cooling fan power supply. The power supply operates in a variety of states.

30. 发明公开

EP1495532A2 SOFT SWITCHING CONVERTER USING CURRENT SHAPING 有权
标题翻译：具有功率塑造软开关转换器
公开(公告)号：EP1495532A2
公开(公告)日：2005-01-12
申请号：EP03709546.0
申请日：2003-04-11
申请人： Delta Energy Systems (Switzerland) AG
发明人： JITARU, Ionel, Dan
IPC分类号： H02M3/337 , H02M3/28
CPC分类号： H02M3/33592 , H02M3/28 , H02M3/337 , H02M2001/0048 , Y02B70/1475 , Y02B70/1491
摘要： A converter (40) topology that eliminates reverse recovery losses in its output rectifying semiconductor devices (Sr1, Sr2) employs an AC injection voltage source (Vinj) in series with a power transformer primary winding (16). Input semiconductor switches (M1, M4) in the converter's primary circuit are controlled to provide in the power transformer secondary a voltage across the winding or windings in a first direction forward biasing one of the output rectifying devices followed by a lower level reverse biasing voltage produced by the injection voltage. This lower level voltage across the secondary turns off the previously conducting rectifier device and drives carriers out of its semiconductor junction or junctions to eliminate reverse recovery losses occurring when the secondary applies a higher level reverse bias across the non-conducting rectifier device. The injection voltage source can be a transformer (20) in addition to the power transformer having a primary winding (23) in series with the primary winding of the power transformer and a secondary winding (24) connected to ground through a capacitor (22). In addition to preventing reverse recovery losses in the rectifying devices in the secondary, the injection voltage transformer also injects an AC triangular waveform current (Vinj) into the current in the converter primary input circuit to the junction of the semiconductor switches where they are connected in a bridge circuit supplying the power transformer primary. By this, the injection voltage source assures zero voltage switching of the semiconductor switches even at light loads.

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