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1. 发明公开

EP0185546A3 Control device for chopper apparatus 失效
标题翻译：操纵装置控制装置
公开(公告)号：EP0185546A3
公开(公告)日：1987-08-26
申请号：EP85309206
申请日：1985-12-17
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Ogawa, Kiyoshi , Akao, Yoshizo
IPC分类号： H02M03/142 , H02M03/337
CPC分类号： H02M3/142
摘要： A chopper apparatus having a plurality of chopper circuits connected in parallel, wherein each current in the chopper circuit is derived as a chopper curent, current deviations of the respective chopper currents from the average of the chopper currents are detected, and the amounts of current deviations are inputted as the amount of corrections to a control system of the chopper apparatus to control the output voltage of the chopper apparatus. A chopper apparatus having a plurality of chopper circuits connected in parallel between a DC power source and a load, wherein the output voltage of the chopper apparatus and a reference voltage are compared by a common comparator provided in a plurality of control circuit systems, phase shifters in the plurality of control circuit systems are controlled by the difference voltage obtained by the common comparator to pulse-width control the chopper circuits, and wherein currents are derived from either input side or output side of the chopper circuits and the respective current deviations are detected and thereafter, the amounts of deviations are respectively applied to the corresponding phase shifters as their correction signals to balance the respective currents of the chopper circuits and control the output voltage of the chopper apparatus to a constant voltage.

2. 发明公开

EP0146876A3 Antisaturation control for x-ray generator inverter 失效
标题翻译： X射线发生器逆变器的抗干扰控制
公开(公告)号：EP0146876A3
公开(公告)日：1985-11-21
申请号：EP84115237
申请日：1984-12-12
申请人： GENERAL ELECTRIC COMPANY
发明人： Santurtun, Carlos Manueco , Carmena, Angel Diaz
IPC分类号： H02M03/337
CPC分类号： H02M1/40 , H02M3/3376 , H02M2007/4803 , H05G1/34
摘要： An inverter provides alternating current to the high-voltage transformer by way of alternating the current flow through its diagonals. Means are provided to sense the current flow in the transformer primary to obtain an indication of an impending saturating condition and for correcting such an imbalance by selectively unbalancing the current flow in the respective diagonals to correct the condition. The sawtoo,h generator is used to unbalance the alternate half-cycles in response to an integrated signal from the current-sensing means to thereby control the inverter output to provide an unbalanced diagonal flow until the condition is corrected.

3. 发明公开

EP0220494A3 DC to DC energy conversion system 失效
标题翻译：直流到直流能量转换系统
公开(公告)号：EP0220494A3
公开(公告)日：1988-08-31
申请号：EP86113080
申请日：1986-09-23
申请人： International Business Machines Corporation
发明人： Gillett, John Brian , Spreen, James Harold
IPC分类号： H02M03/337 , H01F29/00
CPC分类号： H02M3/28
摘要： A DC to DC converter commutes a DC signal into a pulsating a.c. signal, applied to the primary of a power transformer in which the primary and secondary windings are planar and generate the output pulse signal applied selectively to an external capacitor. The planar transformer design provides the whole or most of the inductance required, in conjunction with the capacitor, to filter the output signal and reduce the ripple therein, while simultaneously providing tight coupling between the primary and secondary windings. A single turn secondary winding is provided to reduce the number of turns in the transformer and thereby reduce the associated power loss.

4. 发明公开

EP0211635A3 Switching power supplies 无效
标题翻译：切换电源
公开(公告)号：EP0211635A3
公开(公告)日：1988-02-10
申请号：EP86305964
申请日：1986-08-01
申请人： THE BABCOCK & WILCOX COMPANY
发明人： Whitford, Rowland Edgar
IPC分类号： H02M03/337
CPC分类号： H02M3/3374
摘要： A low power high efficiency switching power supply comprises a switching transformer (42) having primary and secondary windings (41,62,64). The primary winding (41) is supplied with a primary voltage over a series connected constant current source (32) and Zener diode (36). The primary voltage is chopped by an FET (48, 50) which has a gate (56, 58) connected to an oscillator (60) operating at a relatively low frequency. The secondary windings (62, 64) of the transformer are connected to full-wave rectifiers (74,76) which convert the a c signal, produced by the chopping of the primary voltage, into a dc signal. Efficiency is maximised by using fast switching FETs and low flux densities in the transformer (42). The power supply is particularly useful in 4-20 mA current loops.

5. 发明公开

EP0237861A3 Power converter 失效
标题翻译：电源转换器
公开(公告)号：EP0237861A3
公开(公告)日：1988-10-12
申请号：EP87102945
申请日：1987-03-02
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Okado, Chihiro
IPC分类号： H02M03/337
CPC分类号： H02M3/3376 , H02M2007/4803
摘要： This apparatus is a power converter which delivers a pulse produced based on a dc voltage (l) to the primary side of a transformer (3) with its polarity being changed per half cycle to take out an ac power from the secondary side thereof. By modulating the pulse width of a pulse delivered, the output power becomes adjustable. By detecting a current on the primary side of the transformer (3), current change rates at positive and negative half cycles are calculated. By comparing these change rates at the both cycles, magnetic deviation of the transformer (3) can be detected. With the pulse width correcting means (36, 37; 39, 40, 4l, l2), pulse widths of pulse delivered at positive and negative cycles are adjusted so as to cancel such a magnetic deviation. The control for preventing magnetic deviation described above is realized as a control having a very fast response. In addition, such a control enables the transformer to be operative in a range extremely close to the range where the transformer is saturated, thus allowing the transformer (3) to be small-sized and lightened.

6. 发明公开

EP0239765A3 Inverter with a DC source and a chopper part 失效
标题翻译：逆变器与直流电源和斩波器部分
公开(公告)号：EP0239765A3
公开(公告)日：1988-10-05
申请号：EP87102231
申请日：1987-02-17
申请人： LEYBOLD AKTIENGESELLSCHAFT
发明人： Stürmer, Johann , Thomas, friedrich-Werner, Dr.-Ing.
IPC分类号： H02M07/538 , H02M03/337
CPC分类号： H02M7/5381 , Y02B70/1441

7. 发明公开

EP0201876A3 Series resonant converter 失效
标题翻译：系列共振转换器
公开(公告)号：EP0201876A3
公开(公告)日：1987-12-02
申请号：EP86106338
申请日：1986-05-07
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Sakakibara, Kazuhiko , Kuwata, Yutaka
IPC分类号： H02M03/337
CPC分类号： H02M3/3376 , Y02B70/1433
摘要： A series resonant converter is disclosed, in which a series resonant circuit (26) consisting of a resonant capacitor (16) and a resonant inductor (17) is connected in series with AC input terminals of a rectifier (13). Positive current and negative current are alternately caused to flow from a power supply (12, 19) through the series combination of the series resonant circuit (26) and rectifier (13) through on-off control of a plurality of switch elements (11, 18), thereby obtaining a DC voltage from the rectifier. A parallel resonant circuit (23) is provided in series with the series resonant circuit (26). The resonant frequency of the parallel resonant circuit is sufficiently lower than the resonant frequency of the series resonant circuit and higher than the audible frequency range.

8. 发明公开

EP0203270A3 DC-DC converter comprising a PWM inverter producing a quasi-trapezoidal waveform, and a low losses rectifier to produce a DC output 失效
标题翻译：包含产生相位波形波形的PWM逆变器的DC-DC转换器和用于产生直流输出的低损耗整流器
公开(公告)号：EP0203270A3
公开(公告)日：1987-11-11
申请号：EP86102569
申请日：1986-02-27
申请人： SELENIA SPAZIO S.p.A.
发明人： Roccucci, Silvio
IPC分类号： H02M03/337
CPC分类号： H02M3/3378
摘要： @ Alternating current pulse width modulated inverter-converter having quasi-trapezoidal waveform, capable of high frequency (10 30 kHz) inverter a.c. output rectifying diodes low loss energy transfer from primary source to d.c. output lines. Due to its characteristics, it may be adopted for space as well as ground applications. Its uniqueness is given by the insertion within its converting circuit of a peculiar magnetic generator through which energy with square wave current and controlled aneptitude and duration, is transferred from the primary source to the inverter. This magnetic generator exploits the presence of paramite capacities of the inverter transformer or that of any other capacitive circuit suitably inserted, to achieve at a quasi-trapezoidal a.c. voltage at the inverter output.

9. 发明申请

WO1997049169A1 CURRENT AND VOLTAGE SUPPLY DEVICE FOR CONTINUOUS VOLTAGE NETWORK 审中-公开
标题翻译：电力及电源装置直接低压电力
公开(公告)号：WO1997049169A1
公开(公告)日：1997-12-24
申请号：PCT/DE1997001131
申请日：1997-06-05
申请人： SIEMENS AKTIENGESELLSCHAFT , KALKMANN, Bernhard , REINOLD, Gerhard
发明人： SIEMENS AKTIENGESELLSCHAFT
IPC分类号： H02M03/337
CPC分类号： H02M3/3376 , H02M2007/4803
摘要： A supply device has in its power section a push-pull bridge circuit which can be advantageously driven without the balancing consumer commonly used until now. The service life of the disclosed supply device is thus considerably lengthened. A regulating circuit forces the primary load current to flow symmetrically without peak loads in the transformer. This advantageously enables in particular the transformer and the push-pull bridge circuit to have a minimum size and thus to advantageously reduce the size and weight of the supply device in a corresponding manner.
摘要翻译：根据本发明的供给装置具有在电源部分的推挽桥电路，其是不具有通常Symmetrierkondensator有利地可操作的。由于其不作为本发明的供给装置的寿命显著上升。由一个控制电路，所述主负载电流的对称当然是强制执行而无需在变压器的电流峰值。有利的是，特别是变压器和推挽桥电路可以极小尺寸，其中所述供给装置的尺寸和重量都相应地有利的低。

10. 发明申请

WO1994009556A1 PROCESS FOR OPERATING A VOLTAGE CONVERTER, VOLTAGE CONVERTER AND ITS USE 审中-公开
标题翻译：一种用于操作功率转换器和功率转换器和应用
公开(公告)号：WO1994009556A1
公开(公告)日：1994-04-28
申请号：PCT/DE1993000928
申请日：1993-10-04
申请人： ANT NACHRICHTENTECHNIK GMBH , OHMS, Franz , GEILER, Martin
发明人： ANT NACHRICHTENTECHNIK GMBH
IPC分类号： H02M03/337
CPC分类号： H02M1/36 , H02M3/3378
摘要： In a voltage converter for switching operations, such as a push-pull voltage converter (GW), the switching-on pulses for the switching members (S1, S2) during a switching-on operation have different lengths, in such a way that the average value of the absorbed energy current does not exceed a predetermined limit value. On the contrary of usual processes, the switching-on pulses are not regulated, but the different switching-on times in several dividing phases are fixed in advance depending on the inductivity (LS) of the direct voltage converter (GW). This process ensures that the average value of the switching-on current does not substantially exceed a predetermined nominal value. This is particularly advantageous for the energy supply to travelling-wave tube amplifiers.

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