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91. 发明申请

WO1992014294A1 CURRENT SENSING SYNCHRONOUS RECTIFIER APPARATUS 审中-公开
标题翻译：电流感应同步整流器装置
公开(公告)号：WO1992014294A1
公开(公告)日：1992-08-20
申请号：PCT/GB1991001913
申请日：1991-10-31
申请人： ASTEC INTERNATIONAL LIMITED
发明人： ASTEC INTERNATIONAL LIMITED , SMITH, David, Anthony
IPC分类号： H02M03/335
CPC分类号： G01R19/22 , H02M3/158 , H02M3/33569
摘要： A current-sensing rectifier for current rectification and measurement applications is described. The current-sensing rectifier comprises a current-sensing device (100) for rectifying the current in a selected circuit branch and an active-sense comparison circuit (140) to measure the sense current provided by the current-sensing device. The current-sensing device and active measurement circuit are operated such that the current-sensing device rectifies the current of a selected circuit branch. No negative voltage supplies are required for rectification or for the measurement of the branch current. Further embodiments of the present invention include sample-and-hold circuits which sample the value of the rectified current during an ON-period of operation and maintain the sampled value during a subsequent OFF-period.

92. 发明申请

WO1992012568A1 DC-TO-DC CONVERTER USING COUPLED INDUCTOR CURRENT SENSING AND PREDETERMINED ON TIME 审中-公开
标题翻译：使用耦合电感器电流传感和预定时间的直流到直流转换器
公开(公告)号：WO1992012568A1
公开(公告)日：1992-07-23
申请号：PCT/US1991009525
申请日：1991-12-19
申请人： EASTMAN KODAK COMPANY
发明人： EASTMAN KODAK COMPANY , LUDDEN, Christopher, Anthony , DUNSMORE, Clay, Allen
IPC分类号： H02M03/335
CPC分类号： H02M3/33507
摘要： A DC-to-DC converter (10) is operated in accordance with a predetermined primary circuit ON time (tON) and a sensed predetermined secondary circuit current level (IS) to provide improved charging performance and extended battery life. Energy is stored in the primary (14) of a coupled inductor (12) when power in the primary, provided by a battery (20) having an internal impedance (24) which varies over the battery's lifetime, is switched ON for a predetermined time tON. Upon expiration of time tON, power is switched OFF, whereupon stored energy is transferred to the secondary (16) via a flyback type process, thus charging a storage capacitor (28). A preventing means (56) prevents a premature switching ON of power in the primary (14) subsequent to the expiration of time tON. The energy storage cycle repeats when current (IS) sensed in the secondary decreases below a predetermined minimum current threshold (IMIN).

93. 发明申请

WO1991009458A1 HYBRID POWER SYSTEM 审中-公开
标题翻译：混合动力系统
公开(公告)号：WO1991009458A1
公开(公告)日：1991-06-27
申请号：PCT/US1990006565
申请日：1990-11-08
申请人： SUNDSTRAND CORPORATION
发明人： SUNDSTRAND CORPORATION , DHYANCHAND, John, P. , PATEL, Sunil , NG, Chai-Nam , NGUYEN, Vietson
IPC分类号： H02M03/335
CPC分类号： H02M7/49
摘要： Prior hybrid power systems which develop AC and DC power for AC and DC loads, respectively, have not separately regulated the AC and DC outputs, and hence load conditions on one of the outputs can adversely effect the loads connected to the other output. In order to overcome this problem, a hybrid power system which converts variable-frequency power developed by a brushless generator (12) into DC power which is supplied to a DC load and constant-frequency AC power which is supplied to an AC load includes an AC/DC converter (20) coupled to a main generator portion armature winding (64a-64c) of the generator which converts the variable-frequency power produced by the generator into the DC power and a DC/AC converter (24) coupled to the AC/DC converter which converts the DC power into the constant-frequency AC power. A first regulator (30) is coupled to an exciter portion field winding of the generator for supplying current thereto in dependence upon a parameter of the DC power to maintain such parameter substantially at a regulated DC value. A second regulator (32) is coupled to the DC/AC converter for controlling same in accordance with a parameter of the constant-frequency AC power to maintain such parameters substantially at regulated AC value.
摘要翻译：分别为交流和直流负载开发交流和直流电力的混合动力系统分别没有分别调节交流和直流输出，因此其中一个输出上的负载条件可能不利地影响连接到另一个输出的负载。为了克服这个问题，将由无刷发电机（12）开发的可变频率功率转换为直流负载的DC电力和提供给AC负载的恒定频率AC电力的混合动力系统包括：耦合到发电机的主发电机部分电枢绕组（64a-64c）的AC / DC转换器（20），其将由发电机产生的可变频率功率转换成DC电力;以及DC / AC转换器（24） AC / DC转换器，其将DC功率转换为恒定频率AC电力。第一调节器（30）耦合到发电机的激励器部分励磁绕组，用于根据直流电力的参数提供电流，以将该参数保持在稳定的直流值。第二调节器（32）耦合到DC / AC转换器，用于根据恒定频率AC功率的参数进行控制，以将这些参数保持在稳定的AC值。

94. 发明申请

WO1991009455A1 DC/DC-CONVERTER 审中-公开
标题翻译： DC / DC转换器
公开(公告)号：WO1991009455A1
公开(公告)日：1991-06-27
申请号：PCT/DK1990000331
申请日：1990-12-18
申请人： SEIERSEN, Ole, Steen
IPC分类号： H02M03/335
CPC分类号： H02M3/33561 , H02M3/3378
摘要： A voltage converter which has a primary circuit and which, with an input voltage, is connected through at least one primary winding to respective secondary windings of at least one secondary circuit. The primary circuit and each of the secondary circuits are tuned individually so that each of them comprises an oscillatory circuit with coinciding resonance frequencies.
摘要翻译：一种电压转换器，其具有初级电路，并且其输入电压通过至少一个初级绕组连接到至少一个次级电路的相应次级绕组。主电路和每个次级电路被单独调谐，使得它们中的每一个包括具有重合谐振频率的振荡电路。

95. 发明申请

WO1989007363A1 DC TO DC CONVERTER WITH FEED FORWARD AND FEED BACK REGULATION 审中-公开
标题翻译：直流到直流转换器，前馈和后馈规范
公开(公告)号：WO1989007363A1
公开(公告)日：1989-08-10
申请号：PCT/US1988004644
申请日：1988-12-27
申请人： ELECTRIC POWER RESEARCH INSTITUTE, INC.
发明人： ELECTRIC POWER RESEARCH INSTITUTE, INC. , LIMUTI, Donald , ROSS, James, M.
IPC分类号： H02M03/335
CPC分类号： H02M3/33553
摘要： The invention provides a DC to DC converter capable of operating from a power source whose output voltage may change over a 10 to 1 range. A switching transistor (52) is used to convert the DC input voltage into a pulsed voltage. Feed forward control techniques are used to rapidly compensate for changes in the amplitude of the input voltage. Feed back techniques are used to maintain the output voltage at the desired value. Isolation between the input and output is provided using a transformer (50) to couple the switching circuits to a rectifier (92) and filter (94, 95) which produces the output voltage. A fiber optic link (153) provides isolation for the feed back signal.
摘要翻译：本发明提供一种能够从输出电压可能在10比1范围内变化的电源进行操作的DC-DC转换器。开关晶体管（52）用于将DC输入电压转换为脉冲电压。前馈控制技术用于快速补偿输入电压幅度的变化。反馈技术用于将输出电压维持在所需值。使用变压器（50）提供输入和输出之间的隔离，以将开关电路耦合到产生输出电压的整流器（92）和滤波器（94,95）。光纤链路（153）为反馈信号提供隔离。

96. 发明申请

WO1989003136A1 POWER SUPPLY START CIRCUIT 审中-公开
标题翻译：电源启动电路
公开(公告)号：WO1989003136A1
公开(公告)日：1989-04-06
申请号：PCT/US1988003294
申请日：1988-09-22
申请人： ASTEC INTERNATIONAL LTD.
发明人： ASTEC INTERNATIONAL LTD. , WHITTLE, Rex, William, James
IPC分类号： H02M03/335
CPC分类号： H02M1/36 , H02M3/33523 , H02M2001/009
摘要： A start circuit (70) for starting the generation of pulse width modulated switching pulses is disclosed for use in a DC/DC switching converter power supply. The starting circuit (70) is responsive to the initiation of a DC voltage source and starts the operation of a pulse generator (60). The starting circuit (70) also includes a relaxation oscillator (71) connected to the DC voltage source for periodically generating a start pulse at a predetermined frequency. On going power is coupled to the pulse generator (60) once the generator begins operation. The relaxation oscillator (71) is selectively disabled by a disabling circuit (90, 92, 94) when the pulse generator (60) is powered by the ongoing power supplied by the power supply during normal operation. The start circuit includes means (107) for delaying the disabling of the relaxation oscillator (71) for a preselected period after shutdown of the power supply and includes a rapid start circuit (300) for reducing the time between restoration of input power and the operation of the start circuit (70).
摘要翻译：公开了用于开始生成脉宽调制切换脉冲的启动电路（70），用于DC / DC开关转换器电源。启动电路（70）响应于直流电压源的启动并开始脉冲发生器（60）的操作。启动电路（70）还包括连接到DC电压源的张弛振荡器（71），用于以预定频率周期性地产生起始脉冲。一旦发电机开始运行，正在进行的功率耦合到脉冲发生器（60）。当脉冲发生器（60）由在正常操作期间由电源提供的正在进行的电力供电时，松弛振荡器（71）由禁用电路（90,92,94）选择性地禁用。启动电路包括用于在关闭电源之后延迟松弛振荡器（71）的禁用期间的装置（107），并且包括用于减少输入电力恢复和操作之间的时间的快速启动电路（300）的启动电路（70）。

97. 发明申请

WO1988000408A1 PROCESS FOR OPERATING A SWITCHING CONTROLLER AND SWITCHING CONTROLER OPERATING ACCORDING TO THIS PROCESS 审中-公开
标题翻译：根据本程序操作切换控制器和切换控制器的操作过程
公开(公告)号：WO1988000408A1
公开(公告)日：1988-01-14
申请号：PCT/CH1987000070
申请日：1987-06-18
申请人： MELCHER ELEKTRONISCHE GERÄTE AG , MELCHER, Domenic
发明人： MELCHER ELEKTRONISCHE GERÄTE AG
IPC分类号： H02M03/335
CPC分类号： H02M3/33507
摘要： The operating process is based on the existence and cooperation of at least six functional units (64, 65, 66, 67, 68, 70), whereby the functional units (65, 66, 67) have a monitoring and control function. Functional units (64, 68, 70) together form the pause and frequency control circuit. Functional unit (65) monitors demagnetization of the transformer (2), functional unit (66) controls the time-averaged output current and functional unit (67) controls the output voltage of the switching controller. Functional unit (64) forms the voltage time-integral of the input voltage and functional unit (68) determines the target value of this voltage time-integral according to the pause duration determined. The process can be extended to monitoring the input voltage for the overshooting of a maximum value by a functional unit (71) and for under-shooting of a minimum value by a functional unit (72). A new switching phase can begin only if all functional units (65, 66, 67, 71, 72) having monitoring functions issue a release signal to an AND-gate controlling a bistable switch (70).
摘要翻译：操作过程基于至少六个功能单元（64,65,66,67,68,70）的存在和协作，功能单元（65,66,67）具有监视和控制功能。功能单元（64,68,70）一起形成暂停和频率控制电路。功能单元（65）监视变压器（2）的退磁，功能单元（66）控制时间平均的输出电流，功能单元（67）控制开关控制器的输出电压。功能单元（64）形成输入电压的电压时间积分，功能单元（68）根据所确定的暂停持续时间确定该电压时间积分的目标值。该过程可以扩展到通过功能单元（71）监视用于过冲最大值的输入电压，以及通过功能单元（72）对最小值进行低摄影。只有具有监控功能的所有功能单元（65,66,77,71,72）向控制双稳态开关（70）的与门发出释放信号，才能开始新的切换阶段。

98. 发明申请

WO1986003902A1 POWER SUPPLY WITH NOISE IMMUNE CURRENT SENSING 审中-公开
标题翻译：具有噪声免疫电流感应功能
公开(公告)号：WO1986003902A1
公开(公告)日：1986-07-03
申请号：PCT/US1985002303
申请日：1985-11-25
申请人： HUGHES AIRCRAFT COMPANY
发明人： HUGHES AIRCRAFT COMPANY , FARNSWORTH, Robert, P. , MISCHIMA, Steve
IPC分类号： H02M03/335
CPC分类号： H02M3/33507
摘要： A power supply (20) incorporates a switching regulator circuit and a flyback transformer (26) having diodes (42) for unidirectional current flow from an output circuit of the transformer to a load (24). Substantially noise-free sensing of currents in both input (32) and output (34) windings of the transformer is provided by a sensing circuit composed of a sense winding (46) on the transformer and an integrator (50) coupled to the sense winding. The integrator provides an output signal proportional to volt seconds or flux which, in turn, is proportional to either the input current or the output current. The input current and the output current flow alternately due to a switching action of the regulator circuitry. The regulator circuitry includes an electronic switch (38) coupled via a comparator to an output terminal of the integrator so as to initiate a pulse of current in the input winding when the output currents drops below a preset value, and to terminate the input current when the input current exceeds a preset value. A bank of capacitors (54) connected to the input winding (32) stores electric energy in the intervals between pulses for subsequent discharge into the transformer during the current pulses. The foregoing arrangement of the power supply circuitry provides for isolation of input and output sections of the power supply to prevent the coupling of noise. An overvoltage sensing circuit may also be coupled to the output winding (34) for acting via a logic unit to terminate input current during intervals of excessively high output voltage.

99. 发明申请

WO1998011655A1 METHOD AND DEVICE FOR PROVIDING POWER TO A MAGNETRON 审中-公开
标题翻译：用于向MAGNETRON提供电力的方法和装置
公开(公告)号：WO1998011655A1
公开(公告)日：1998-03-19
申请号：PCT/SE1997001520
申请日：1997-09-09
申请人： IKL SKELLEFTEÅ AKTIEBOLAG , LIDSTRÖM, Kjell
发明人： IKL SKELLEFTEÅ AKTIEBOLAG
IPC分类号： H02M03/335
CPC分类号： H02M1/4225 , H02M5/4585 , H02M2001/007 , H05B6/685 , Y02B70/126
摘要： The present invention relates to a method and a device for providing power to a magnetron from an alternating voltage source. According to the invention, the power supply is accomplished by said alternating voltage being rectified into a rectified voltage which is then converted into a high direct current for powering said magnetron, wherein the power provided to said conversion is controlled based upon a detected actual effect in the power supply means.
摘要翻译：本发明涉及从交流电压源向磁控管提供电力的方法和装置。根据本发明，通过将所述交流电压整流为整流电压来实现电源，该整流电压然后被转换成用于为所述磁控管供电的高直流电，其中提供给所述转换的功率基于检测到的实际效果电源装置。

100. 发明申请

WO1997003492A1 SWITCHED-MODE POWER SUPPLY WITH MAGNETIC FLUX DENSITY CONTROL 审中-公开
标题翻译：与磁流严格控制，开关电源
公开(公告)号：WO1997003492A1
公开(公告)日：1997-01-30
申请号：PCT/DE1996001091
申请日：1996-06-21
申请人： ROBERT BOSCH GMBH , WOLF, Peter
发明人： ROBERT BOSCH GMBH
IPC分类号： H02M03/335
CPC分类号： H02M1/40 , H02M3/33546
摘要： Proposed is a switched-mode power supply with a transmitter, wherein the output current or the output voltage is controlled or regulated as a function of the magnetic flux density of the transmitter. This advantageously prevents the transmitter from becoming saturated, especially at large pulse widths. Limiting the magnetic flux density to a predetermined value enables the power components to be optimized due to the limited thermal load.
摘要翻译：根据本发明，它提出了一种具有一个变压器的开关电源，其中，响应于该变压器的磁通密度的输出电流或输出电压进行控制或调节。这将有利地避免在变压器进入饱和的大脉冲宽度的特定的运行。通过限制磁通量密度到预定值时，电源装置可由于有限的热负荷产生的被优化。

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