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公开(公告)号：US10277135B2
公开(公告)日：2019-04-30
申请号：US15567089
申请日：2017-04-18
发明人： Wendong Li
摘要： A dual-output flyback voltage conversion circuit and a display device are provided. The dual-output flyback voltage conversion circuit includes an input module, a voltage transformation module, an output module, and a feedback module. The input module is used for rectifying and filtering an input voltage. The voltage transformation module is used for performing a voltage conversion process on the input voltage which is obtained after rectifying and filtering. The output module is used for outputting a first output voltage and a second output voltage according to conversion voltages. The feedback module is used for controlling the voltage transformation module to output the input voltage which is obtained after rectifying and filtering according to the first output voltage and the second output voltage.
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公开(公告)号：US20170373531A1
公开(公告)日：2017-12-28
申请号：US15602675
申请日：2017-05-23
摘要： An Uninterrupted Power Supply (UPS) power supply system is provided, which includes: a filter module connected to a mains supply and configured to filter an input from the mains supply; a BOOST module, where a first terminal of the BOOST module is connected to the filter module via a first switch group and connected to a battery via a second switch group, and a second terminal of the BOOST module is connected to a positive bus and a negative bus; and a bi-directional Direct Current/Direct Current (DC/DC) module, where a first terminal of the bi-directional DC/DC module is connected to the battery, and a second terminal of the bi-directional DC/DC module is connected to the positive bus and the negative bus.
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公开(公告)号：US09837894B2
公开(公告)日：2017-12-05
申请号：US15403551
申请日：2017-01-11
发明人： Ryohei Makino , Motoyoshi Kubouchi
CPC分类号： H02M3/135 , H02H7/1225 , H02M1/32 , H02M7/483 , H02P27/06 , H02P29/0241
摘要： A chopper device includes: a series circuit connecting at one end to a positive pole of a DC power source and having a breaker and a reactor; a series circuit connected between another end of the stated series circuit and a negative pole of the DC power source and having switches; a series circuit connected in parallel to the switch and having a diode and a capacitor; and a series circuit connected in parallel to the switch and having a diode and a capacitor. The chopper device outputs a DC voltage at three potentials from both ends and a midpoint of a series circuit having the capacitors by turning the switches ON/OFF. The chopper device further includes other switches connected in parallel to the switches. When a short-circuit fault is presumed to have occurred in the switch, the other switch is turned ON before interruption is performed by the breaker.
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公开(公告)号：US09184736B2
公开(公告)日：2015-11-10
申请号：US14015480
申请日：2013-08-30
申请人： DENSO CORPORATION
CPC分类号： H03K5/12
摘要： A current mode controlled power converter controllable in a digitally processing current mode even during an on time. In the power converter, each control period based on a reference signal includes a slope calculation period in which a slope compensation signal for the control period is calculated by a slope compensation unit. During each slope calculation period, the slope compensation unit negates the slope compensation signal calculated previous to the control period including the slope calculation period, and a reset signal generation unit compares a current detection signal detected by a current detection unit with a current instruction set to an error signal generated by an error signal generation unit to generate a reset signal.
摘要翻译： 电流模式控制功率转换器，即使在接通时间也可以数字处理电流模式控制。 在功率转换器中，基于参考信号的每个控制周期包括斜率计算周期，其中通过斜率补偿单元计算用于控制周期的斜率补偿信号。 在每个斜率计算周期期间，斜率补偿单元否定在包括斜率计算周期的控制周期之前计算的斜率补偿信号，并且复位信号生成单元将由电流检测单元检测的电流检测信号与当前指令集相比较 由误差信号产生单元产生的产生复位信号的误差信号。
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公开(公告)号：US20090027933A1
公开(公告)日：2009-01-29
申请号：US11829285
申请日：2007-07-27
IPC分类号： H02M7/5395 , H02M3/135
CPC分类号： H02M7/53871 , H02M2001/007
摘要： Systems and methods are disclosed for a DC boost converter. The systems and methods combine operation of an inductor with the input capacitor of a DC/AC inverter via a switch configuration to power the DC/AC inverter. The switch configuration is controlled by a plurality of control signals generated by a controller based on a variety of control modes, and feedback signals.
摘要翻译： 公开了用于DC升压转换器的系统和方法。 该系统和方法通过开关配置将电感器与DC / AC逆变器的输入电容器的操作相结合，为DC / AC逆变器供电。 开关配置由控制器基于各种控制模式和反馈信号产生的多个控制信号来控制。
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公开(公告)号：US20080084720A1
公开(公告)日：2008-04-10
申请号：US11864332
申请日：2007-09-28
申请人： Gerhard Thiele , Erich Bayer
发明人： Gerhard Thiele , Erich Bayer
CPC分类号： H02M3/07
摘要： A DC-DC boost converter comprises a charge pump selectively operating in a voltage doubler or in a voltage tripler mode. A switching arrangement connects the charge pump to an input voltage terminal in a charge phase and to an output voltage terminal in a discharge phase. A controllable current source is connected in series with the charge pump in the discharge phase and an error amplifier has a first input connected to a reference voltage, a second input connected to the output voltage terminal and an output connected to a control input of the controllable current source. The converter further comprises a mode changeover circuit with a first comparator having a first input connected to the output of the error amplifier and a second input connected to a first threshold voltage source. A second comparator has a first input connected to the output of the error amplifier and a second input connected to a second threshold voltage source. A flip-flop has its set input connected to the output of the first comparator, its reset input connected to the output of the second comparator. The flip-flop has its output connected to the switch arrangement to switch the charge pump from doubler mode to tripler mode when the voltage at the output of the error amplifier exceeds the second threshold voltage and back to doubler mode when the output voltage at the error amplifier drops below the first threshold voltage.
摘要翻译： DC-DC升压转换器包括选择性地以倍压器或三阶模式工作的电荷泵。 开关装置将电荷泵连接到充电阶段的输入电压端子和放电阶段中的输出电压端子。 可控电流源在放电阶段与电荷泵串联连接，误差放大器具有连接到参考电压的第一输入端，连接到输出电压端子的第二输入端和连接到可控制电流源的控制输入端的输出端 当前来源。 转换器还包括模式切换电路，其中第一比较器具有连接到误差放大器的输出端的第一输入端和连接到第一阈值电压源的第二输入端。 第二比较器具有连接到误差放大器的输出端的第一输入端和连接到第二阈值电压源的第二输入端。 触发器的设置输入连接到第一比较器的输出，其复位输入连接到第二比较器的输出。 触发器的输出连接到开关装置，以便当误差放大器输出端的电压超过第二阈值电压时，将电荷泵从倍频模式切换到三倍模式，当误差输出电压达到倍频模式时 放大器低于第一阈值电压。
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公开(公告)号：US5923543A
公开(公告)日：1999-07-13
申请号：US989217
申请日：1997-12-11
申请人： Seoung Choi
发明人： Seoung Choi
CPC分类号： H02M3/33569 , Y02B70/1433
摘要： A resonance-type power switching device includes: a power controller for producing a power control pulse, main and auxiliary switches for generating switching power in response to the power control pulse, and a control pulse advancing circuit for advancing the generation of the power control pulse by a preset time interval and for supplying the advanced generation of the power control pulse to the auxiliary switch in advance, such that a drive signal is generated to provide an off time interval between the turn-on of the main switch and the turn-on of the auxiliary switch to effect resonance during the off time interval.
摘要翻译： 共振型电力开关装置包括：用于产生电力控制脉冲的电力控制器，响应于功率控制脉冲产生开关电力的主开关和辅助开关;以及控制脉冲提前电路，用于推进功率控制脉冲的产生 预先设定的时间间隔，并预先向辅助开关提供功率控制脉冲的高级产生，使得产生驱动信号以在主开关的接通和导通之间提供关闭时间间隔 的辅助开关在关闭时间间隔期间进行谐振。
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公开(公告)号：US5644485A
公开(公告)日：1997-07-01
申请号：US503860
申请日：1995-07-18
申请人： Gunnar Asplund
发明人： Gunnar Asplund
CPC分类号： H02J3/36 , H02M3/158 , H02M7/2173 , Y02E60/60
摘要： A converter connection for conversion between alternating voltage and direct voltage, for connection to a power network (DCN) having a neutral pole (P0) and at least one pole (P+,P-) energized by direct voltage in relation to the neutral pole, comprises a voltage-source converter (VC) with two direct-voltage terminals (DP, DM). At least one of the direct-voltage terminals of the converter is connected by means of an electric pole conductor (W1, W12, W11, W21, W2) to at least one of the poles of the power network which are energized by direct voltage. The converter connection further comprises two valves (V7, V8) mutually series-connected at a common point of connection (J), each of said valves comprising a gate turn-off semiconductor valve (T1) and a diode valve (D1) connected thereto in anti-parallel connection, said series connection being connected between the direct-voltage terminals of the converter, and a reactor (SL) with a first terminal (T1) connected to the connection point and a second terminal (T2) which communicates with the neutral pole in an electrically conducting connection. The converter connection may be accommodated in a converter station (SR1 and SR2, respectively) included in an installation for transmission of high-voltage direct current. (FIG. 2)
摘要翻译： 用于连接到具有中性极（P0）和至少一个极（P +，P-）的电网（DCN）的转换器连接，用于在交流电压和直流电压之间进行转换，所述电力网（DCN）相对于中性极通过直流电压激励， 包括具有两个直流电压端子（DP，DM）的电压源转换器（VC）。 转换器的直流电压端子中的至少一个通过电极导体（W1，W12，W11，W21，W2）连接到由直流电压激励的电网的至少一个极。 转换器连接还包括在公共连接点（J）处相互串联连接的两个阀（V7，V8），每个所述阀包括与其连接的闸极关断半导体阀（T1）和二极管阀（D1） 在反并联连接中，所述串联连接连接在转换器的直流电压端子和连接到连接点的第一端子（T1）的反应器（SL）和与连接点连接的第二端子（T2） 中性极导电连接。 转换器连接可以容纳在用于传输高压直流电的设备中所包括的转换器站（分别为SR1和SR2）中。 （图2）
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9.发明授权Snubber energy recovery circuit for protecting switching devices from voltage and current 失效缓冲器能量恢复电路，用于保护开关器件免受电压和电流的影响
公开(公告)号：US5444594A
公开(公告)日：1995-08-22
申请号：US13438
申请日：1993-02-04
CPC分类号： H02M7/487 , H02M3/135 , H02M7/5152 , H03K17/08144
摘要： A snubber energy recovery circuit for protecting switching devices from current and voltage, which comprises a snubber circuit connected in parallel with a switching device, a recovery path for recovery the energy stored in the snubber circuit, and a constant-current source for maintaining current flowing in the recovery path at a constant value. The snubber circuit is composed of a snubber diode and a snubber capacitor, with one end of the recovery path being connected to the junction point of the snubber capacitor and snubber diode.
摘要翻译： 一种用于保护开关装置免受电流和电压的缓冲能量恢复电路，其包括与开关装置并联连接的缓冲电路，用于恢复存储在缓冲电路中的能量的恢复路径，以及用于维持电流流动的恒流源 在恢复路径中以恒定值。 缓冲电路由缓冲二极管和缓冲电容构成，恢复路径的一端连接到缓冲电容器和缓冲二极管的连接点。
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公开(公告)号：US5287261A
公开(公告)日：1994-02-15
申请号：US902872
申请日：1992-06-23
申请人： Mehrdad Ehsani
发明人： Mehrdad Ehsani
摘要： A zero current soft switching power converter (10) is provided in which a link capacitor (20) is coupled between a source switch S.sub.1 and a source switch S.sub.2. The reversal of voltage polarity across link capacitor (20) allows for zero current switching of switches S.sub.1 and S.sub.2.
摘要翻译： 提供零电流软开关功率转换器（10），其中链路电容器（20）耦合在源极开关S1和源极开关S2之间。 连接电容器（20）上的电压极性反转允许开关S1和S2的零电流切换。
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