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1. 发明授权

US09063556B2 Bandgap reference circuit with offset voltage removal 有权
标题翻译：带隙偏移电压去除带隙参考电路
公开(公告)号：US09063556B2
公开(公告)日：2015-06-23
申请号：US13764627
申请日：2013-02-11
申请人： OMNIVISION TECHNOLOGIES, INC.
发明人： Per Olaf Pahr
IPC分类号： H03K17/78 , H03F3/08 , H01L27/00 , G05F3/02 , G05F1/02 , H01L27/146
CPC分类号： G05F3/02 , G05F1/02 , H01L27/14601 , H03K17/78
摘要： An example bandgap reference circuit includes an amplifier, a first, a second, and a third switch, and a capacitor. The first switch is coupled between an inverting input and an output of the amplifier to provide a negative feedback loop around the amplifier when the first switch is closed. The capacitor has a first end coupled to the inverting input, and a second end coupled to the second switch, where the capacitor is charged to a voltage substantially equal to an offset voltage of the amplifier when the second switch is closed. The third switch is coupled to a second end of the capacitor, where the voltage across the capacitor is subtracted from an input loop of the reference circuit to cancel the offset voltage of the amplifier when the third switch is closed.
摘要翻译：示例性带隙基准电路包括放大器，第一，第二和第三开关以及电容器。第一开关耦合在反相输入和放大器的输出之间，以在第一开关闭合时在放大器周围提供负反馈回路。电容器具有耦合到反相输入的第一端和耦合到第二开关的第二端，其中当第二开关闭合时，电容器被充电到基本上等于放大器的偏移电压的电压。第三开关耦合到电容器的第二端，其中从参考电路的输入环路减去电容器两端的电压，以消除第三开关闭合时放大器的偏移电压。

2. 发明申请

US20090230931A1 VOLTAGE ADJUSTING APPARATUS 有权
标题翻译：电压调节装置
公开(公告)号：US20090230931A1
公开(公告)日：2009-09-17
申请号：US12325577
申请日：2008-12-01
申请人： HSIAO WEN CHEN
发明人： HSIAO WEN CHEN
IPC分类号： G05F1/02
CPC分类号： G05F1/46
摘要： The invention discloses a voltage adjusting apparatus including a power adaptor, a first resistor, a current detecting module, a second resistor, and a voltage feedback controlling module. The power adaptor outputs a first current first. The first resistor is used to convert the first current to a first voltage. The current detecting module is used to convert the first voltage to a second current. The second resistor is used to convert the second current to a second voltage. The voltage feedback controlling module is used to convert the second voltage to a third voltage. The power adaptor is used to convert the third voltage to a fourth voltage and output the fourth voltage.
摘要翻译：本发明公开了一种电压调节装置，包括电源适配器，第一电阻器，电流检测模块，第二电阻器和电压反馈控制模块。电源适配器首先输出第一个电流。第一电阻用于将第一电流转换为第一电压。电流检测模块用于将第一电压转换成第二电流。第二电阻用于将第二电流转换为第二电压。电压反馈控制模块用于将第二电压转换成第三电压。电源适配器用于将第三电压转换为第四电压并输出第四电压。

3. 发明申请

US20090121697A1 CIRCUIT AND METHOD FOR REDUCING OUTPUT NOISE OF REGULATOR 有权
标题翻译：用于减少调节器的输出噪声的电路和方法
公开(公告)号：US20090121697A1
公开(公告)日：2009-05-14
申请号：US11937959
申请日：2007-11-09
申请人： Masami Aiura , Kanji Egawa , Shintaroh Murakami
发明人： Masami Aiura , Kanji Egawa , Shintaroh Murakami
IPC分类号： G05F1/10 , G05F1/02
CPC分类号： H02M3/156 , H02M2001/0022 , Y10S323/901
摘要： A circuit and a method for reducing output noise when a pulse width modulation mode is started. A pulse width modulation circuit generates a first pulse signal having a duty cycle that is in accordance with an output voltage of a regulator circuit. A drive circuit generates the output voltage from an input voltage in response to the first pulse signal provided from the pulse width modulation circuit. A feed forward circuit controls the pulse width modulation circuit in a manner to generate the first pulse signal having a duty cycle that maintains the output voltage at a desired level before the pulse width modulation circuit provides the first pulse signal to the drive circuit.
摘要翻译：一种在开始脉宽调制模式时降低输出噪声的电路和方法。脉冲宽度调制电路产生具有与调节器电路的输出电压相应的占空比的第一脉冲信号。驱动电路响应于从脉宽调制电路提供的第一脉冲信号，从输入电压产生输出电压。前馈电路以脉冲宽度调制电路向驱动电路提供第一脉冲信号的方式控制脉宽调制电路，以产生具有将输出电压保持在期望电平的占空比的第一脉冲信号。

4. 发明申请

US20090045792A1 Power supply device and image forming apparatus 有权
标题翻译：电源装置和图像形成装置
公开(公告)号：US20090045792A1
公开(公告)日：2009-02-19
申请号：US12222322
申请日：2008-08-07
申请人： Masae Sugawara , Yuta Nomura
发明人： Masae Sugawara , Yuta Nomura
IPC分类号： G05F1/02
CPC分类号： H02J7/0031 , H02J7/345
摘要： A charging unit charges a capacitor that is configured to be charged and discharged to drive a load. A switching unit switches on and off between the capacitor and the charging unit. A delay control unit delays an output of a switching control signal for controlling the switching unit until an output voltage of the charging unit exceeds a voltage of the capacitor, and outputs a delayed switching control signal. An output unit receives the delayed switching control signal from the delay control unit, and outputs the delayed switching control signal to the switching unit so that the charging unit charges the capacitor.
摘要翻译：充电单元对被配置为被充电和放电的电容器进行充电以驱动负载。开关单元在电容器和充电单元之间接通和断开。延迟控制单元延迟用于控制开关单元的开关控制信号的输出，直到充电单元的输出电压超过电容器的电压，并输出延迟的开关控制信号。输出单元从延迟控制单元接收延迟的切换控制信号，并将延迟的切换控制信号输出到切换单元，使得充电单元对电容器充电。

5. 发明申请

US20080129262A1 SWITCHING POWER SUPPLY SOURCE 有权
标题翻译：切换电源
公开(公告)号：US20080129262A1
公开(公告)日：2008-06-05
申请号：US12026098
申请日：2008-02-05
申请人： Alexandre Balmefrezol , Jean-Luc Patry
发明人： Alexandre Balmefrezol , Jean-Luc Patry
IPC分类号： G05F1/44 , G05F1/02
CPC分类号： H02M1/38 , H03K17/165
摘要： A switching power supply source including an inductance with first and second terminals; an output node; an NMos transistor, the drain of which is connected to the first terminal; a PMos transistor, the drain of which is connected to the first terminal; a control device generating control signals for NMos and PMos transistors assuring that these transistors are not conducting simultaneously; a capacitor with a third terminal connected to the first terminal and a fourth terminal; a resistance with a fifth terminal connected to the fourth terminal and a sixth terminal; and an NMos transistor the drain of which is connected to the grid of the PMos transistor and the gate of which is connected to the fourth terminal.
摘要翻译：一种开关电源，包括具有第一和第二端子的电感; 输出节点; NMos晶体管，其漏极连接到第一端子; PMOS晶体管，其漏极连接到第一端子; 产生用于NMos和PMos晶体管的控制信号的控制装置，确保这些晶体管不同时导通; 电容器，其具有连接到所述第一端子的第三端子和第四端子; 具有连接到第四端子的第五端子和第六端子的电阻; 以及NMos晶体管，其漏极连接到PMos晶体管的栅极，栅极连接到第四端子。

6. 发明授权

US4897773A Inverter output circuit 失效
标题翻译：变频器输出电路
公开(公告)号：US4897773A
公开(公告)日：1990-01-30
申请号：US346655
申请日：1989-05-03
申请人： Dale L. Bilczo
发明人： Dale L. Bilczo
IPC分类号： G05F1/02 , B23K9/10 , G05F1/12 , H02M3/28 , H02M3/335
CPC分类号： B23K9/10 , H02M3/28 , H02M3/335
摘要： There is provided an improvement in an inverter power supply of the type including an output transformer of the type having a high permeability magnetic core, input winding means for applying input current pulses to the core; a first output winding wound on the core; and a second output winding wound on the core. The power supply further includes first and second output terminals and output circuit means for connecting the individual output windings to the terminals in a fashion that opposite polarity output current pulses induced in the output windings by the input current pulses are applied across the terminals in a preselected first polarity. The improvement in this power supply comprises forming the output transformer with the two output windings having essentially the same number of turns and being wound in a selected direction so that current flow caused by freewheeling from an output inductor will flow simultaneously through the two output windings in a direction to cause opposite polarity magnetizing flux in the transformer core and providing means for mounting the two output windings of the transformer adjacent to each other on the core in a tight overlapping relationship with a coefficient of coupling greater than 0.950 and preferably greater than 0.980. The best results are obtained with the coefficient greater than 0.990.
摘要翻译：提供了包括具有高磁导率磁芯的类型的输出变压器的类型的逆变器电源的改进，用于将输入电流脉冲施加到磁芯的输入绕组装置; 缠绕在芯上的第一输出绕组; 以及缠绕在所述芯上的第二输出绕组。电源还包括第一和第二输出端子和输出电路装置，用于将各个输出绕组连接到端子，使得输入电流脉冲在输出绕组中感应的相反极性输出电流脉冲以预选的方式施加在端子上第一极性。该电源的改进包括形成输出变压器，其中两个输出绕组具有基本上相同数量的匝并沿所选方向缠绕，使得由输出电感器续流引起的电流将同时流过两个输出绕组引起变压器铁芯中相反极性磁化磁通的方向，并提供用于以与紧耦合系数大于0.950且优选大于0.980的紧密重叠关系将变压器相邻的两个输出绕组彼此相邻地安装在芯上的装置。获得最好的结果，系数大于0.990。

7. 发明授权

US4633184A Device for generating a signal corresponding to a variable magnitude associated with the reactive power of an arc furnace in order to control a reactive power compensator 失效
标题翻译：用于产生对应于与电弧炉的无功功率相关联的可变大小的信号的装置，以便控制无功功率补偿器
公开(公告)号：US4633184A
公开(公告)日：1986-12-30
申请号：US720932
申请日：1985-04-08
申请人： Patrick Charles
发明人： Patrick Charles
IPC分类号： H05B7/148 , F27B3/08 , F27D11/08 , G05F1/02 , H02J3/18
CPC分类号： H02J3/18 , Y02E40/30
摘要： A device generates a signal corresponding to a variable magnitude associated with the reactive power of an arc furnace, in order to control a reactive power compensator. It comprises a reactive power or voltage demodulator and a set of filters connected to the output of the demodulator. The set of filters comprises active bandstop filters having a bandwidth of .+-.F relative to frequencies of 2f.sub.O, 4f.sub.O and 6f.sub.O and narrowband active bandstop filters having a bandwidth of substantially .+-.2 Hz relative to frequencies of f.sub.O and 3f.sub.O. f.sub.O is the supply frequency and F is approximately f.sub.O /2. The device further comprises a phase advance corrector circuit operative in the frequency band O-F connected to the output of the set of filters.
摘要翻译：设备产生对应于与电弧炉的无功功率相关联的可变幅度的信号，以便控制无功功率补偿器。它包括无功功率或电压解调器和连接到解调器输出端的一组滤波器。该组滤波器包括相对于2fO，4fO和6fO的频率具有+/- F的带宽的有源带阻滤波器和相对于f0和3f0的频率具有基本+/- 2Hz的带宽的窄带有源带阻滤波器。 fO是供电频率，F大约为fO / 2。该装置还包括在与该组滤波器的输出相连的频带O-F中工作的相位提前校正器电路。

8. 发明授权

US4438498A Power supply output monitoring method and apparatus 失效
标题翻译：电源输出监控方法及装置
公开(公告)号：US4438498A
公开(公告)日：1984-03-20
申请号：US282476
申请日：1981-07-13
申请人： Stephen M. Sekel , Rodney G. Strange , Robert F. Verrinder
发明人： Stephen M. Sekel , Rodney G. Strange , Robert F. Verrinder
IPC分类号： G05F1/10 , G01R13/02 , G05F1/00 , G05F1/56 , G05F1/575 , G05F1/02
CPC分类号： G01R13/02 , G05F1/575
摘要： An output monitoring method and apparatus is provided for a programmable power supply in which the supply produces one of a programmed voltage or current value and the appropriate value is displayed on a single display device.
摘要翻译：为可编程电源提供输出监视方法和装置，其中电源产生编程电压或当前值中的一个，并且适当的值显示在单个显示装置上。

9. 发明授权

US4224662A Power supply unit for a plasma plant 失效
标题翻译：等离子电站供电单元
公开(公告)号：US4224662A
公开(公告)日：1980-09-23
申请号：US894619
申请日：1978-04-10
申请人： Paul Boniger
发明人： Paul Boniger
IPC分类号： G05F1/02 , G05F1/12 , H02M7/155
CPC分类号： G05F1/12 , G05F1/02
摘要： A power supply unit for a plasma plant, in particular for a plasma spraying plant, comprises an isolating transformer for connection to three-phase mains, a current control array and a rectifier array. The rectifier array comprises silicon wafer thyristors in a three-phase bridge configuration, which thyristors are electronically controlled through a current control loop, and an exterior voltage control loop is provided for additional electronic control of the silicon wafer thyristors.In the output from the thyristor array, a filter with a transient voltage suppressor may be provided as high-frequency protection and with di/dt limitation.
摘要翻译：用于等离子体设备的电源单元，特别是用于等离子体喷涂设备的电源单元包括用于连接到三相电源，电流控制阵列和整流器阵列的隔离变压器。整流器阵列包括三相桥式配置的硅晶片可控硅，通过电流控制回路对晶闸管进行电子控制，并提供外部电压控制回路，用于硅晶片可控硅的附加电子控制。在晶闸管阵列的输出中，可以提供具有瞬态电压抑制器的滤波器作为高频保护和di / dt限制。

10. 发明授权

US10754365B2 System and method for arc detection and intervention in solar energy systems 有权
公开(公告)号：US10754365B2
公开(公告)日：2020-08-25
申请号：US15933861
申请日：2018-03-23
申请人： Tigo Energy, Inc.
发明人： Daniel Eizips , Shmuel Arditi
IPC分类号： G05F1/02 , H02S50/10 , H02S10/10 , G05B15/02
摘要： An arc detection and intervention system for a solar energy system. One or more arc detectors are strategically located among strings of solar panels. In conjunction with local management units (LMUs), arcs can be isolated and affected panels disconnected from the solar energy system.

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