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81. 实用新型

CN201352762Y 伪连续工作模式开关电源的多级脉冲序列控制装置失效
公开(公告)号：CN201352762Y
公开(公告)日：2009-11-25
申请号：CN200820223949.8
申请日：2008-12-31
申请人：西南交通大学
发明人：许建平 , 秦明 , 王金平 , 周国华 , 吴松荣
IPC分类号： H02M3/325 , H03K3/00 , G05F1/10
摘要：用于工作于伪连续模式的开关电源多级脉冲序列装置，其结构特点是：电压检测电路、误差放大器、误差区间判断器、多级脉冲产生器、驱动电路依次相连；时钟信号产生器与误差区间判断器及多级脉冲产生器相连；电流检测电路与多级脉冲产生器相连。可实现伪连续工作模式开关电源的多级脉冲序列控制。采用该种控制装置，变换器输出功率不受电流临界条件限制，输出电压纹波较小，动态响应好，抗干扰能力强，适用于各种拓扑结构的变换器。

82. 实用新型

CN201349180Y 一种同步整流驱动电路失效
公开(公告)号：CN201349180Y
公开(公告)日：2009-11-18
申请号：CN200920129580.9
申请日：2009-01-20
申请人：深圳市振华微电子有限公司
发明人：刘国强
IPC分类号： H02M3/325 , G05F1/10
摘要：本实用新型公开了一种同步整流驱动电路，所述电路包括：一驱动绕组，在主开关变压器的副边独立增加，所述驱动绕组感应的峰值电压小于±20V。所述驱动绕组有一中间抽头，所述中间抽头连接输出端电源地，所述驱动绕组的其他两个引出端，分别连接两开关整流管的栅极。最佳的所述驱动绕组两端的引出端，是通过电阻R1、R2连接两开关整流管的栅极。本实用新型栅极驱动电压满足小于±20V的要求，不再受制于主开关变压器次级峰值电压，实现灵活的自驱动方式。而且本实用新型电路简单，调试容易，成本低廉。

83. 发明授权

US10199943B2 Systems and methods for voltage regulation of primary side regulated power conversion systems with compensation mechanisms 有权
公开(公告)号：US10199943B2
公开(公告)日：2019-02-05
申请号：US15588399
申请日：2017-05-05
申请人： ON-BRIGHT ELECTRONICS (SHANGHAI) CO., LTD.
发明人： Yuan Lin , Zhiqiang Sun , Weihua Wang , Lieyi Fang
IPC分类号： H02M3/335 , H02M3/325
摘要： Systems and methods are provided for voltage regulation of power conversion systems. An example system controller includes: a first sampling component configured to sample a sensing signal and determine a compensation signal based on at least in part on the sensing signal, the sensing signal being associated with a first current flowing through a primary winding of a power conversion system; a signal processing component configured to receive a feedback signal and the compensation signal and generate a first signal based at least in part on the feedback signal and the compensation signal, the feedback signal being associated with an auxiliary winding coupled with a secondary winding of the power conversion system; an error amplifier configured to receive the first signal and a reference signal and generate an amplified signal based at least in part on the first signal and the reference signal.

84. 发明申请

US20080130323A1 Method Modular Power Supply For X-Ray Tubes and Method Thereof 有权
标题翻译： X射线管的模块化电源方法及其方法
公开(公告)号：US20080130323A1
公开(公告)日：2008-06-05
申请号：US11814680
申请日：2006-01-26
申请人： Bernhard Wagner , Bernd Freiheit-Jensen , Christian Vollertsen , Christoph Loef , Cornelius Paul , Frank Mueller , Klaus Hoffmann , Marc Klingelhoeller , Wolfgang Rexhausen
发明人： Bernhard Wagner , Bernd Freiheit-Jensen , Christian Vollertsen , Christoph Loef , Cornelius Paul , Frank Mueller , Klaus Hoffmann , Marc Klingelhoeller , Wolfgang Rexhausen
IPC分类号： H02M3/325
CPC分类号： H05G1/12 , H02M3/285 , H02M3/337
摘要： A power supply power supply (30) comprising a DC voltage supply, a control unit and a plurality of high voltage channels (33a-33d) is suggested. Each high voltage channel (33) includes an inverter (IKTV), a resonance circuit, a transformer (TR), and a rectifier (RECT). The resonance circuit cooperates with the inverter (INV). The inverter (INV) is formed by a first switching unit and a second switching unit whereby a voltage of a first polarity can be applied to the resonance circuit in a first switching state, whereas a voltage of a second polarity can be applied to the resonance circuit in a second switching state. The switching states can be switched by the control unit in such a manner that in a first mode of an operation for high output power, the output power can be adjusted by changing the switching frequency in the range of the resonance frequency. In a second mode of operation for low output power, the output power can be adjusted by changing the duration of the switching state at an essentially constant switching frequency.
摘要翻译：建议包括DC电压源，控制单元和多个高压通道（33a至33d）的电源电源（30）。每个高压通道（33）包括逆变器（IKTV），谐振电路，变压器（TR）和整流器（RECT）。谐振电路与逆变器（INV）协作。逆变器（INV）由第一开关单元和第二开关单元形成，从而第一极性的电压可以在第一开关状态下施加到谐振电路，而第二极性的电压可以应用于谐振电路处于第二开关状态。可以通过控制单元切换开关状态，使得在高输出功率的操作的第一模式中，可以通过改变谐振频率范围内的开关频率来调节输出功率。在用于低输出功率的第二种操作模式中，可以通过以基本恒定的开关频率改变开关状态的持续时间来调节输出功率。

85. 发明授权

US4236196A Switching regulator 失效
标题翻译：开关稳压器
公开(公告)号：US4236196A
公开(公告)日：1980-11-25
申请号：US968136
申请日：1978-12-11
申请人： Akio Koizumi , Hiroshi Nakazawa
发明人： Akio Koizumi , Hiroshi Nakazawa
IPC分类号： H02M3/28 , H02M3/325 , H02M3/335
CPC分类号： H02M3/33507
摘要： A switching regulator includes a switching transformer and a switching transistor connected in series between a DC voltage source through the primary winding of the switching transformer. A pulse width modulator and a control pulse signal generator are provided so as to produce a pair of ON- and OFF-pulse signals which are supplied to the control electrode of the switching transistor so as to increase the switching speed thereof.
摘要翻译：开关调节器包括开关变压器和串联连接在通过开关变压器的初级绕组的直流电压源之间的开关晶体管。提供脉宽调制器和控制脉冲信号发生器，以产生一对ON和OFF脉冲信号，这些信号被提供给开关晶体管的控制电极，以便提高其开关速度。

86. 发明授权

US4223378A Switching regulator 失效
标题翻译：开关稳压器
公开(公告)号：US4223378A
公开(公告)日：1980-09-16
申请号：US962654
申请日：1978-11-21
申请人： Akio Koizumi
发明人： Akio Koizumi
IPC分类号： H02M3/28 , H02M3/325 , H02M3/335
CPC分类号： H02M3/33569
摘要： A switching regulator includes a DC voltage source having a pair of DC output terminals, a switching transformer having first and second primary windings connected in series, a magnetic core and a secondary winding, a first switching transistor connected in series between the pair of DC output terminals through the first primary winding, a second switching transistor connected in series between the pair of DC output terminals through the first and second primary windings, a rectifier circuit connected across the secondary winding. A pulse width modulator is provided to produce a PWM (pulse width modulated) control signal the duty of which is proportional to the voltage of the rectifier circuit and the PWM control signal is selectively supplied to one of the first and second switching transistors in accordance with the low or high circumstance of the load. Further, a reference pulse signal having a standard pulse width is provided, which is compared with the PWM control signal so as to selectively supply the PWM control signal to one of the first and second switching transistors.
摘要翻译：开关稳压器包括具有一对DC输出端的DC电压源，具有串联连接的第一和第二初级绕组的开关变压器，磁芯和次级绕组，串联连接在所述一对DC输出端之间的第一开关晶体管通过第一初级绕组的端子，通过第一和第二初级绕组串联连接在一对DC输出端子之间的第二开关晶体管，跨过次级绕组连接的整流器电路。提供脉宽调制器以产生其占空比与整流电路的电压成比例的PWM（脉宽调制）控制信号，并且PWM控制信号被选择性地提供给第一和第二开关晶体管中的一个依照负载的低或高环境。此外，提供具有标准脉冲宽度的参考脉冲信号，其与PWM控制信号进行比较，以便选择性地将PWM控制信号提供给第一和第二开关晶体管之一。

87. 发明授权

US4172276A Flyback type switching power source device 失效
标题翻译：反激式开关电源装置
公开(公告)号：US4172276A
公开(公告)日：1979-10-23
申请号：US847822
申请日：1977-11-02
申请人： Kazuo Kameya
发明人： Kazuo Kameya
IPC分类号： H02M3/325 , H02M3/338 , H02M3/335
CPC分类号： H02M3/3385
摘要： A flyback type switching power source device alternately having a time during which energy is stored in a transformer and a time during which the stored energy is taken out. A current flowing into the primary winding of the transformer or out of the secondary winding thereof is detected, and the current thus detected is converted into a DC voltage proportional to the magnitude thereof. Furthermore, a voltage resulting from superimposition of the DC voltage upon a reference voltage is compared with a DC voltage resulting from conversion of a voltage induced in a tertiary winding of the transformer during the time for taking out the energy stored in the transformer to control the time during which energy is stored in the transformer.
摘要翻译：反激式开关电源装置交替地具有将能量存储在变压器中的时间和存储的能量被取出的时间。检测到流入变压器的初级绕组或其次级绕组的电流，并且将如此检测的电流转换为与其大小成比例的直流电压。此外，将直流电压叠加在参考电压上的电压与在取出存储在变压器中的能量的时间期间由变压器的三次绕组中感应的电压的转换产生的直流电压进行比较，以控制能量存储在变压器中的时间。

88. 发明授权

US4163906A Time division switching regulator 失效
标题翻译：时分开关稳压器
公开(公告)号：US4163906A
公开(公告)日：1979-08-07
申请号：US827343
申请日：1977-08-24
申请人： Hironori Shimamura
发明人： Hironori Shimamura
IPC分类号： H02M3/325 , H02M3/337 , H02M7/48 , H02P13/26
CPC分类号： H02M3/3378 , Y10T307/43 , Y10T307/469 , Y10T307/484
摘要： A time division switching regulator wherein a single power source is connected to a plurality of inverters the outputs from which are rectified and smoothed and appear at respective output terminals, and the output voltages at said terminals are sequentially monitored and are compared with a reference voltage to generate an error signal in response to which the output from the corresponding inverter may be controlled or regulated.
摘要翻译：一种时分开关稳压器，其中单个电源连接到多个反相器，其输出被整流和平滑并出现在相应的输出端，并且所述端子处的输出电压被依次监视并与基准电压进行比较产生一个误差信号，响应于相应的逆变器的输出可以被控制或调节。

89. 发明授权

US4122514A Direct current power supply 失效
标题翻译：直流电源
公开(公告)号：US4122514A
公开(公告)日：1978-10-24
申请号：US737636
申请日：1976-11-01
申请人： Dilip A. Amin
发明人： Dilip A. Amin
IPC分类号： G05F1/56 , H02M3/325 , H02M3/335
CPC分类号： H02M3/33561 , Y10T307/469
摘要： A direct current voltage power supply in which spaced pulses of current are made to flow through the primary winding of a power transformer. The anode-cathode path of an SCR device is connected from a point on a secondary winding to an output capacitor. A pulse width modulation circuit and a base drive circuit are connected between the output capacitor and the gate electrode of the SCR device so as to apply a pulse to the gate electrode that enables conduction between the source and drain electrodes whenever the voltage across the output capacitor drops below a given reference value.
摘要翻译：直流电压电源，其中使电流的间隔脉冲流过电力变压器的初级绕组。 SCR器件的阳极 - 阴极路径从次级绕组上的点连接到输出电容器。脉冲宽度调制电路和基极驱动电路连接在SCR器件的输出电容器和栅电极之间，以便每当输出电容器两端的电压为零时，向源电极和漏电极之间施加脉冲至栅电极低于给定的参考值。

90. 发明授权

US4024437A D.C. power supply circuit 失效
标题翻译：直流电源电路
公开(公告)号：US4024437A
公开(公告)日：1977-05-17
申请号：US628743
申请日：1975-11-04
申请人： Masao Suzuki
发明人： Masao Suzuki
IPC分类号： H02M3/325 , H02H7/12 , H02M3/335 , H03K17/082 , H02H3/20
CPC分类号： H02M3/33507 , H02H7/12 , H02H7/1213 , H03K17/0826
摘要： A power supply protective circuit that responds to transient overloads, permanent overloads and excessive overloads to protect the power supply and the related switching transistor from damage. The circuit utilizes an astable multi-vibrator which is designed to be pulse modulated by transient overloads. In addition, the multi-vibrator is designed to be turned-off by permanent overloads and by an excessive overload condition. By this arrangement, the multi-vibrator remains in operation for normal transient overloads and does not require resetting manually when such an overload condition occurs.
摘要翻译：电源保护电路可以响应瞬态过载，永久过载和过载，以保护电源和相关的开关晶体管免受损坏。该电路采用了一种不稳定的多重振荡器，可以通过瞬态过载进行脉冲调制。此外，多重振动器设计为通过永久过载和过载过载条件关闭。通过这种布置，多重振动器保持正常的瞬态过载运行，并且当这种过载状况发生时不需要手动复位。

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