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31. 发明授权

US08248052B2 Current limit scheme for DC-DC converters 有权
标题翻译： DC-DC转换器的限流方案
公开(公告)号：US08248052B2
公开(公告)日：2012-08-21
申请号：US12413864
申请日：2009-03-30
申请人： Yogesh Sharma
发明人： Yogesh Sharma
IPC分类号： G05F1/575 , G05F1/618
CPC分类号： H02M3/1588 , H02M2001/0012 , Y02B70/1466 , Y10T307/696
摘要： A current limit scheme for current-mode DC-DC converters. The current limit scheme is used to limit the current through the inductor during a current limit event. Current flows through the inductor alternately from first and second power devices, with one of said devices operating in the on-state while the other is in the off-state. The current through the second power device is sensed and tracked if the peak inductor current exceeds a particular value. The inductor current is regulated by modulating the on-time of the first power device that delivers current from the input voltage source to the output through the inductor. Thus, the modulator adjusts the on-time of the first power device using past and present information related to the current flowing through the second power device and the instantaneous output voltage of the converter to limit the peak inductor current from exceeding a maximum value.
摘要翻译：电流模式DC-DC转换器的电流限制方案。电流限制方案用于在电流限制事件期间限制通过电感器的电流。电流从第一和第二功率器件交替地流过电感器，其中一个所述器件工作在导通状态，而另一个处于截止状态。如果峰值电感电流超过特定值，则检测和跟踪通过第二功率器件的电流。通过调制将电流从输入电压源传递到通过电感的输出的第一功率器件的导通时间来调节电感器电流。因此，调制器使用与流过第二功率器件的电流相关的过去和现在信息以及转换器的瞬时输出电压来调节第一功率器件的接通时间，以将峰值电感器电流限制在超过最大值。

32. 发明申请

US20120200276A1 POWER SUPPLY CIRCUIT WITH SCALABLE PERFORMANCE AND METHOD FOR OPERATING THE POWER SUPPLY CIRCUIT 有权
标题翻译：具有可扩展性能的电源电路和操作电源电路的方法
公开(公告)号：US20120200276A1
公开(公告)日：2012-08-09
申请号：US13023109
申请日：2011-02-08
申请人： LUC VAN DIJK , PETER BUEHRING
发明人： LUC VAN DIJK , PETER BUEHRING
IPC分类号： G05F1/618
CPC分类号： H02M3/158
摘要： A power supply circuit and a method for operating the power supply circuit are described. In one embodiment, a power supply circuit includes multiple power elements configured to convert an input voltage to an output voltage, a driver circuit coupled to the power elements and configured to drive the power elements, a regulator controller coupled to the power elements and configured to control the power elements for the conversion of the input voltage to the output voltage, and at least one bypass switch coupled to the power elements. The at least one bypass switch is used to bypass at least one of the power elements. Other embodiments are also described.
摘要翻译：描述电源电路和用于操作电源电路的方法。在一个实施例中，电源电路包括被配置为将输入电压转换为输出电压的多个功率元件，耦合到功率元件并被配置为驱动功率元件的驱动器电路，耦合到功率元件的调节器控制器，控制用于将输入电压转换为输出电压的功率元件，以及耦合到功率元件的至少一个旁路开关。至少一个旁路开关用于旁路至少一个功率元件。还描述了其它实施例。

33. 发明授权

US08228051B2 Switched mode power supply with frequency modulation control 有权
标题翻译：开关电源具有调频控制
公开(公告)号：US08228051B2
公开(公告)日：2012-07-24
申请号：US11743483
申请日：2007-05-02
申请人： James S. Brown
发明人： James S. Brown
IPC分类号： G05F1/565 , G05F1/618
CPC分类号： H02M3/157
摘要： A frequency modulation controller for use in controlling a switched mode power supply including an input terminal for receiving an input voltage and at least one switch selectively turned on and off to control the output voltage of the power supply in accordance with an embodiment of the present invention includes an analog to digital converter operable to convert a feedback signal indicative of the present output voltage into digital data, a digital conditioning unit operable to provide an error signal based on the digital data from the digital to analog converter for use in generating the frequency modulation signal and a digital to analog converter operable to provide the frequency modulation signal based on the error signal, wherein the frequency modulation signal indicates a desired duty cycle of the at least one switch to maintain a desired output voltage such that the at least one switch of the switched mode power supply is turned on and off in accordance with the desired duty cycle.
摘要翻译：一种频率调制控制器，用于控制包括用于接收输入电压的输入端子和选择性地导通和截止的至少一个开关的开关模式电源，以根据本发明的实施例来控制电源的输出电压包括可操作以将表示当前输出电压的反馈信号转换为数字数据的模拟数字转换器，数字调节单元，可操作以基于来自数模转换器的数字数据提供误差信号，用于产生频率调制信号和数模转换器，其可操作以基于所述误差信号提供所述频率调制信号，其中所述频率调制信号指示所述至少一个开关的期望占空比以维持期望的输出电压，使得所述至少一个开关切换模式电源根据所需的负载c开启和关闭 ycle。

34. 发明申请

US20120169315A1 POWER SUPPLIES AND CONTROL METHODS FOR OPERATING IN QUADRATURE-RESONANCE-SIMILAR MODE 审中-公开
标题翻译：电源和控制方法用于平均谐振相似模式
公开(公告)号：US20120169315A1
公开(公告)日：2012-07-05
申请号：US13152245
申请日：2011-06-02
申请人： Chien-Liang Lin , Chih-Hsueh Hsu
发明人： Chien-Liang Lin , Chih-Hsueh Hsu
IPC分类号： G05F1/618
CPC分类号： H02M3/156 , H02M2001/0003
摘要： Control method and power controller suitable for a switched mode power supply with a power switch are provided. An ON time of the power switch is recorded. An estimated OFF time is provided based on the ON time. The estimated OFF time is in positive correlation with the ON time. The power switch is turned ON after the elapse of the estimated OFF time.
摘要翻译：提供适用于带有电源开关的开关电源的控制方法和电源控制器。记录电源开关的接通时间。基于接通时间提供估计的关闭时间。估计OFF时间与ON时间正相关。经过预估的关闭时间后，电源开关打开。

35. 发明申请

US20120169126A1 BIDIRECTIONAL BUCK-BOOST CONVERTER 有权
标题翻译：双向BUCK升压转换器
公开(公告)号：US20120169126A1
公开(公告)日：2012-07-05
申请号：US12985109
申请日：2011-01-05
申请人： Eric Mikael Tötterman , Esa Kai Paatero
发明人： Eric Mikael Tötterman , Esa Kai Paatero
IPC分类号： H02J9/06 , G05F1/618
CPC分类号： H02M3/1582 , Y10T307/625 , Y10T307/642
摘要： A bidirectional buck-boost DC-DC converter is particularly well suited for applications where multiple bidirectional buck-boost DC-DC converters are connected in parallel to a common battery. Multiple bidirectional DC-DC converters, as disclosed, may be connected in parallel to a common battery and, at least in boost mode, substantially no current circulates between the parallel connected bidirectional DC-DC converters.
摘要翻译：双向降压 - 升压DC-DC转换器特别适用于多个双向降压 - 升压型DC-DC转换器与普通电池并联连接的应用。如公开的那样，多个双向DC-DC转换器可以并联连接到公共电池，并且至少在升压模式下，并联的双向DC-DC转换器之间基本上没有电流循环。

36. 发明授权

US08207717B2 Buck-boost DC-DC converter with auxiliary inductors for zero current switching 失效
标题翻译：具有辅助电感器的降压 - 升压型DC-DC转换器，用于零电流开关
公开(公告)号：US08207717B2
公开(公告)日：2012-06-26
申请号：US12888893
申请日：2010-09-23
申请人： Junpei Uruno , Hiroyuki Shoji , Yasuo Kaminaga , Akihiko Kanouda
发明人： Junpei Uruno , Hiroyuki Shoji , Yasuo Kaminaga , Akihiko Kanouda
IPC分类号： G05F1/618
CPC分类号： H02M3/1582 , H02M1/4208 , Y02B70/126
摘要： A unidirectional DC-DC converter and method of control thereof. The converter includes a DC power-supply, a buck converter circuit having a first main switching element, a boost converter circuit having a second main switching element, a first snubber capacitor, a first inversely-parallel diode, a control device, and an output diode.
摘要翻译：一种单向DC-DC转换器及其控制方法。该转换器包括直流电源，具有第一主开关元件的降压转换器电路，具有第二主开关元件的升压转换器电路，第一缓冲电容器，第一反并联二极管，控制器件和输出二极管。

37. 发明申请

US20120139517A1 USER-CONFIGURABLE, EFFICIENCY-OPTIMIZING, CALIBRATED SENSORLESS POWER/ENERGY CONVERSION SWITCH-MODE POWER SUPPLY WITH A SERIAL COMMUNICATIONS INTERFACE 有权
标题翻译：用户可配置，高效优化，校准无传感器电源/能量转换开关电源与串行通信接口
公开(公告)号：US20120139517A1
公开(公告)日：2012-06-07
申请号：US13159000
申请日：2011-06-13
申请人： Terry Cleveland , Clifford Ellison, III , Scott Dearborn , Keith Pazul
发明人： Terry Cleveland , Clifford Ellison, III , Scott Dearborn , Keith Pazul
IPC分类号： G05F1/618
CPC分类号： H02M3/157
摘要： An intelligent pulse width modulation (PWM) controller adapts a switch mode power supply (SMPS) system's operating parameters to optimize efficiency, remove hot spots and isolate faults by integrating a microcontroller, PWM digital circuits and analog circuits into a single integrated circuit, thereby reducing the number of external connections, silicon die area and integrated circuit packages. A lossless inductor current sense technique integrates a matched, tunable complimentary filter with the intelligent SMPS controller for accurately measuring current through the power inductor of the SMPS without introducing losses in the power circuit. The complimentary filter is adjusted by the microcontroller to significantly reduce the effects of component tolerances, accurately measuring the power inductor current for precise closed loop control and over current protection. The frequency pole and gain of the complimentary integrated filter can be adjusted on the fly in order to adapt to dynamically changing operating conditions of the SMPS system.
摘要翻译：智能脉宽调制（PWM）控制器通过将单片机，PWM数字电路和模拟电路集成到单个集成电路中，适应开关模式电源（SMPS）系统的运行参数，以优化效率，消除热点和隔离故障，从而减少外部连接数量，硅片面积和集成电路封装。无损耗电感器电流检测技术将匹配的可调谐补偿滤波器与智能SMPS控制器集成，用于精确测量通过SMPS功率电感器的电流，而不会在电源电路中引入损耗。微控制器调整补偿滤波器，以显着降低元件公差的影响，精确测量功率电感电流，实现精确的闭环控制和过流保护。补充集成滤波器的频率极点和增益可以随时调整，以适应动态变化的SMPS系统的工作条件。

38. 发明申请

US20120133349A1 MEASUREMENT CIRCUIT FOR BUCK CIRCUIT 审中-公开
标题翻译：降压电路测量电路
公开(公告)号：US20120133349A1
公开(公告)日：2012-05-31
申请号：US12962562
申请日：2010-12-07
申请人： SONG-LIN TONG , QI-YAN LUO , PENG CHEN
发明人： SONG-LIN TONG , QI-YAN LUO , PENG CHEN
IPC分类号： G05F1/618
CPC分类号： H02M1/32 , G01R31/40 , H02M3/1588 , H02M2001/0009 , Y02B70/1466
摘要： A measurement circuit for overload protection is applied in a buck circuit. The buck circuit includes a pulse width modulation (PWM) controller and a voltage output terminal. The measurement circuit includes a resistance setting circuit to connect different resistances to the PWM controller of the buck circuit. A switch circuit turns the measurement circuit on or off. A current collection circuit receives a voltage from the voltage output terminal of the buck circuit and transforms the received voltage to a current, and amplifies the transformed current and outputs the amplified current to the resistance setting circuit. The resistance setting circuit chooses a resistance through comparison of the amplified current with a preset current. A display unit displays the chosen resistance.
摘要翻译：用于过载保护的测量电路应用在降压电路中。降压电路包括脉宽调制（PWM）控制器和电压输出端。测量电路包括电阻设定电路，用于将不同的电阻连接到降压电路的PWM控制器。开关电路打开或关闭测量电路。电流采集电路从降压电路的电压输出端接收电压，并将接收电压变换为电流，并放大变换后的电流，并将放大的电流输出到电阻设定电路。电阻设定电路通过比较放大电流与预设电流来选择电阻。显示单元显示所选电阻。

39. 发明授权

US08148966B2 Power supply control circuits including enhanced ramp pulse modulation 有权
标题翻译：电源控制电路包括增强斜坡脉冲调制
公开(公告)号：US08148966B2
公开(公告)日：2012-04-03
申请号：US12862414
申请日：2010-08-24
申请人： Gang Chen , Tod F. Schiff
发明人： Gang Chen , Tod F. Schiff
IPC分类号： G05F1/575 , G05F1/618
CPC分类号： H02M3/156
摘要： A power supply control circuit includes a latch including a first latch input for receiving a first logic signal, a second latch input for receiving a second logic signal, and a latch output for providing an output signal. The power supply control circuit further includes a controller coupled to the first and second latch inputs. The controller is configured to generate the first logic signal based on an error signal and a threshold signal and in response to an off-time signal to control timing between pulses in the output signal. The controller is further configured to select one of the error signal and the threshold signal and to generate the second logic signal based on a ramp signal and the one of the error signal and the threshold signal to control a width of the pulse.
摘要翻译：电源控制电路包括锁存器，其包括用于接收第一逻辑信号的第一锁存器输入端，用于接收第二逻辑信号的第二锁存器输入端和用于提供输出信号的锁存器输出端。电源控制电路还包括耦合到第一和第二锁存器输入的控制器。控制器被配置为基于误差信号和阈值信号产生第一逻辑信号，并且响应于关断时间信号来控制输出信号中的脉冲之间的定时。控制器还被配置为选择误差信号和阈值信号之一，并且基于斜坡信号和误差信号和阈值信号中的一个来产生第二逻辑信号以控制脉冲的宽度。

40. 发明申请

US20120068679A1 REGULATED POWER SUPPLY SYSTEM WITH HIGH INPUT VOLTAGE DYNAMICS 有权
标题翻译：具有高输入电压动态的调节电源系统
公开(公告)号：US20120068679A1
公开(公告)日：2012-03-22
申请号：US13232212
申请日：2011-09-14
申请人： Francois Klein , Christophe Taurand
发明人： Francois Klein , Christophe Taurand
IPC分类号： G05F1/618
CPC分类号： H02M3/1582 , H02M2001/0022
摘要： This regulated power supply system with high input voltage dynamics, of the type having a shared inductance buck/boost transformer and having at least two controllable semiconductor switching members, one associated with the buck function of the transformer and the other with the boost function of the transformer, is characterized in that one of the controllable semiconductor switching members is driven by control means as a function of the system's input voltage, and the other is driven continuously by enslavement means on the output voltage.
摘要翻译：这种具有高输入电压动力学的稳压电源系统，具有共享电感降压/升压变压器并具有至少两个可控制的半导体开关元件，一个与变压器的降压功能相关，另一个具有升压功能变压器的特征在于，可控半导体开关元件中的一个由控制装置作为系统的输入电压的函数驱动，另一个由输入电压上的奴役装置连续驱动。

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