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公开(公告)号：US5377090A
公开(公告)日：1994-12-27
申请号：US5952
申请日：1993-01-19
CPC分类号： H02M3/33561 , Y10T307/305
摘要： A distributed power system for providing multiple output voltages, including pulsed voltages, to a solid-state phased-array radar transmit/receive module, for example, includes: an energy-storage capacitor for coupling to an input dc power source and for storing substantial energy at high voltage for supplying pulsed voltages at low voltage; at least one capacitance-multiplying converter, including first and second transformers with multiple secondary windings, for producing positive and negative voltages on buses internal to a power module; and a plurality of series regulators to obtain multiple positive and negative load voltages, including pulsed voltages, from the positive and negative bus voltages. Substantial energy storage is achieved within the power module; and, if even more energy storage is desired, an additional external energy-storage capacitor can be coupled to the input power leads, thereby being coupled in parallel with the energy-storage capacitor. Only two power pins are needed to supply the entire module.
摘要翻译： 例如，用于向固态相控阵雷达发射/接收模块提供包括脉冲电压的多个输出电压的分布式电力系统包括：用于耦合到输入直流电源并用于存储实质的能量存储电容器 用于在低电压下提供脉冲电压的高电压能量; 至少一个电容倍增转换器，包括具有多个次级绕组的第一和第二变压器，用于在功率模块内部的总线上产生正和负电压; 和多个串联调节器，以从正和负母线电压获得包括脉冲电压的多个正负负载电压。 在功率模块内实现大量的能量存储; 并且如果需要更多的能量存储，则附加的外部储能电容器可以耦合到输入电源引线，从而与储能电容器并联耦合。 只需要两个电源引脚来提供整个模块。
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72.发明授权
公开(公告)号：US5274539A
公开(公告)日：1993-12-28
申请号：US802102
申请日：1991-12-04
CPC分类号： H02M3/285 , H02J1/102 , H02M3/33569 , H02J1/108
摘要： A distributed power system for supplying pulsed loads, such as radar loads, includes a relatively high-voltage, energy-storage capacitor coupled in parallel between an input dc power source and a capacitance-multiplying converter. The pulse energy is stored in the energy-storage capacitor and is coupled to the load via low-leakage inductance transformer action. As a result, the size of the energy-storage capacitor is reduced, while maintaining a high bandwidth for supplying fast-rising pulsed loads.
摘要翻译： 用于提供脉冲负载（例如雷达负载）的分布式电力系统包括在输入直流电源和电容倍增转换器之间并联耦合的相对高电压的能量存储电容器。 脉冲能量存储在储能电容器中，并通过低漏电感变压器动作耦合到负载。 结果，减小了储能电容器的尺寸，同时保持用于提供快速上升的脉冲负载的高带宽。
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公开(公告)号：US5113337A
公开(公告)日：1992-05-12
申请号：US652831
申请日：1991-02-08
CPC分类号： H02M1/4208 , H02M3/3376 , H02M2001/4275 , Y02B70/126 , Y02B70/1433 , Y02P80/112
摘要： An off-line switching power supply includes an ac rectifier and a dual-output switching converter having one output coupled between the ac rectifier and the input to the dual-output converter in order to provide a high power factor, the other output of the dual-output switching converter providing a dc voltage as the power supply output. The outputs of the dual-output converter are fully decoupled so as to allow independent control of the ac input current and the power supply output voltage. In a preferred embodiment, a full-wave ac rectifier bridge is coupled in series with the second output of the power converter via an input resonant boosting converter. A full-bridge dc-to-ac converter is coupled between the dc link and ground for providing an ac signal to excite the boosting converter and for providing another ac voltage through a transformer to an output rectifier to generate a regulated dc output voltage. The amplitude of the regulated output voltage is controlled by pulse width modulation, while active frequency control of the boosting converter is provided to control the amplitude of the ac input current. Alternatively, frequency control of the boosting converter is passive, i.e., depends on the gain characteristics of the boosting converter resonant circuit. As a result of the complete decoupling of the input boosting converter and the power supply output voltage, the off-line switching power supply is capable of drawing high quality current waveforms from the ac source while producing a regulated dc output voltage with fast transient response.
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公开(公告)号：US5073848A
公开(公告)日：1991-12-17
申请号：US616965
申请日：1990-11-21
CPC分类号： G05F1/577 , H02H7/125 , H02J1/102 , H02J1/108 , Y10T307/391 , Y10T307/707
摘要： A power distribution system for supplying power to a plurality of point-to-load power supplies includes a plurality of bulk power supplies, each having a separate respective power distribution bus coupled at the output thereof. Each power distribution bus is coupled to each point-of-load power supply through an OR gate such that if one or more of the bulk power supplies fails, or if a fault occurs on one or more of the power distribution buses, then the point-of-load power supplies are unaffected because they continue to receive power from the other bulk power supplies via the respective OR gates. Furthermore, if a power distribution bus becomes short-circuited to ground, the current therein is limited electronically by the respective bulk power supply. Hence, the power distribution buses are protected against overcurrent without the need for a multitude of dc circuit breakers.
摘要翻译： 用于向多个点对点电源供电的配电系统包括多个大容量电源，每个大容量电源具有在其输出端耦合的单独的相应配电总线。 每个配电总线通过或门耦合到每个负载点电源，使得如果一个或多个大容量电源故障，或者如果在一个或多个配电总线上发生故障，则该点 负载电源不受影响，因为它们通过相应的或门继续从其他大容量电源接收电力。 此外，如果配电总线短路到地，则其中的电流由相应的大容量电源电子限制。 因此，配电总线不受过电流的保护，而不需要多个直流断路器。
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公开(公告)号：US5038264A
公开(公告)日：1991-08-06
申请号：US535687
申请日：1990-06-11
IPC分类号： H02M3/335
CPC分类号： H02M3/33561 , H02M2001/009 , Y02B70/1433
摘要： A single-ended, resonant power converter includes an input filter having at least one primary winding and multiple auxiliary, or secondary, windings. A regulated input DC voltage is transformed directly to the auxiliary windings. The voltages across the auxiliary windings are respectively rectified and filtered to provide multiple, auxiliary, regulated output voltages which are independent of the main output voltage and converter switching frequency.
摘要翻译： 单端谐振功率转换器包括具有至少一个初级绕组和多个辅助绕组或次级绕组的输入滤波器。 调节输入直流电压直接转换到辅助绕组。 辅助绕组两端的电压分别进行整流和滤波，以提供独立于主输出电压和转换器开关频率的多个辅助调节输出电压。
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公开(公告)号：US4967109A
公开(公告)日：1990-10-30
申请号：US447948
申请日：1989-12-08
IPC分类号： H03K17/0412 , H03K17/0416
CPC分类号： H03K17/04163 , H03K17/04123
摘要： A high efficiency gate driver circuit for driving a power switching device of a high frequency power converter utilizes a series resonant circuit to reduce or substantially eliminate turn-on switching losses. The resonant circuit comprises the input capacitance of the power switching device and an inductance connected in series between the upper and lower switching devices of a half-bridge driver circuit. During device turn-on, the input capacitance resonates up to a voltage level approximately twice that of the gate drive power supply, and turn-on is substantially lossless. The input capacitance is prevented from discharging back to the supply by a Schottky diode connected in series between the supply and the upper switching device of the half-bridge. During device turn-off, the input capacitance discharges through the lower switching device.
摘要翻译： 用于驱动高频功率转换器的功率开关器件的高效率栅极驱动器电路利用串联谐振电路来减少或基本上消除导通的开关损耗。 谐振电路包括功率开关器件的输入电容和串联连接在半桥驱动电路的上下开关器件之间的电感。 在器件导通期间，输入电容谐振到大约是栅极驱动电源的两倍的电压电平，并且导通基本上是无损的。 通过串联连接在半桥的电源和上部开关装置之间的肖特基二极管防止输入电容向电源放电。 在器件关断期间，输入电容通过下开关器件放电。
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77.发明授权High-frequency DC-DC power converter with zero-voltage switching of single primary-side power device 失效高压直流 - 直流电源转换器采用零电压开关单一侧功率器件
公开(公告)号：US4845605A
公开(公告)日：1989-07-04
申请号：US211804
申请日：1988-06-27
IPC分类号： H02M3/337
CPC分类号： H02M3/3376 , Y02B70/1433 , Y02P80/112
摘要： A high-frequency DC-DC Converter uses a single, primary-side power switching transistor and all of the circuit parasitic elements to achieve high efficiency and small size while operating from no-load to full-load with a relatively narrow operating frequency variation of only about 1.35:1 maximum, and with a reasonably low peak switching device voltage which is only about 3 times the input voltage. The energy stored in the switching device output capacitance is not lost during each high-frequency cycle, but is resonated back to the supply or load circuit. A single-ended-parallel, multi-resonant-converter (SEP-MRC) utilizes a control circuit for controlling the conduction, or "on", time of the single primary-side device, to adjust and regulate the load voltage.
摘要翻译： 高频DC-DC转换器使用单个初级侧功率开关晶体管和所有电路寄生元件来实现高效率和小尺寸，同时从空载到全负载运行，相对较窄的工作频率变化 只有约1.35：1的最大值，并具有相当低的峰值开关器件电压，只有输入电压的3倍左右。 存储在开关器件输出电容中的能量在每个高频周期期间不会丢失，而是被谐振回到电源或负载电路。 单端并联多谐振转换器（SEP-MRC）利用控制电路来控制单个初级侧器件的导通或“接通”时间来调节和调节负载电压。
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78.发明授权
公开(公告)号：US4825348A
公开(公告)日：1989-04-25
申请号：US140377
申请日：1988-01-04
CPC分类号： H02M3/28 , H02M3/337 , Y02B70/1433
摘要： A resonant power converter has a plurality of transformers, each having a primary winding and a secondary winding coupled thereto; the primary windings of all of the plurality of transformers are connected in series. The plurality of transformer secondary circuits are effectively connected in parallel, for current addition. a relatively small portion of the resonance capacitor is placed across each primary winding to insure a low impedance which causes the secondary-winding-connected rectifiers to commutatively switch substantially independently and share the entire output current substantially equally. A plurality of lower power transformers are thus utilized to replace a single high power transformer, so that leakage inductance is reduced and a higher operating frequency can be maintained.
摘要翻译： 谐振功率转换器具有多个变压器，每个变压器具有耦合到其上的初级绕组和次级绕组; 所有多个变压器的初级绕组串联连接。 多个变压器次级电路并联有效连接，用于当前添加。 谐振电容器的相对较小的部分放置在每个初级绕组两端以确保低阻抗，这导致次级绕组连接的整流器基本上独立地互换地转换，并且基本上平均地共享整个输出电流。 因此，多个较低功率变压器用于替代单个高功率变压器，从而减小漏电感并且可以维持较高的工作频率。
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79.发明授权Integrated circuit for controlling power converter by frequency modulation and pulse width modulation 失效用于通过调频和脉宽调制控制功率转换器的集成电路
公开(公告)号：US4733104A
公开(公告)日：1988-03-22
申请号：US045494
申请日：1987-05-04
CPC分类号： H02M3/3376 , H02M3/33561
摘要： An integrated circuit contains the gate drivers and the control components for constructing a DC power supply in any of the most popular converter topologies. Multi-function elements in the control circuit minimize the area of the chip. The integrated circuit drives both the upper and lower switches of a half-bridge converter and separately regulates two power supply output voltages, one by pulse width modulation and the other by frequency modulation.
摘要翻译： 集成电路包含用于在任何最流行的转换器拓扑中构建直流电源的栅极驱动器和控制元件。 控制电路中的多功能元件使芯片面积最小化。 集成电路驱动半桥转换器的上下开关，并分别调节两个电源输出电压，一个通过脉宽调制，另一个通过频率调制。
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公开(公告)号：US4695934A
公开(公告)日：1987-09-22
申请号：US733349
申请日：1985-05-13
CPC分类号： H02M3/33561 , H02M3/3376 , Y02B70/1433
摘要： A resonant converter feeds five load circuits while maintaining excellent voltage regulation. The power converter features a non-bifilar wound transformer with the resonant capacitors serving the dual function of suppressing diode voltage switching transients while forming the resonant circuit in conjunction with the transformer. Overcurrent circuit protection is also provided.
摘要翻译： 谐振转换器馈入五个负载电路，同时保持优异的电压调节。 功率转换器具有非双绕组变压器，谐振电容器具有抑制二极管电压开关瞬变的双重功能，同时与变压器一起形成谐振电路。 还提供过电流电路保护。
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