专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

41. 发明申请

US20130335051A1 CONTROL WITH HYSTERESIS OF AN ELECTRONIC DEVICE USING A PULSE-WIDTH MODULATED SIGNAL 有权
标题翻译：使用脉冲宽度调制信号对电子设备进行HYSTERESIS的控制
公开(公告)号：US20130335051A1
公开(公告)日：2013-12-19
申请号：US13981780
申请日：2012-02-03
申请人： Frédéric Le-Hung , Stéphane Saint-Macary
发明人： Frédéric Le-Hung , Stéphane Saint-Macary
IPC分类号： H02M3/156
CPC分类号： H02M3/156 , H02M3/1563
摘要： A device and switching method for a circuit for generating an output voltage (Vout) via a control signal (CTRL) with two pulse-width modulated states are described. The control signal (CTRL) frequency (Fq) is measured. In order to generate the control signal (CTRL), either a first hysteresis comparator (31) or a second hysteresis comparator (32) is enabled depending on the control signal (CTRL) measured frequency (Fq). Advantageously, the voltage thresholds of the hysteresis comparators and at least one frequency threshold can be chosen in such a manner as to avoid the control signal (CTRL) frequency (Fq) entering into forbidden frequency bands.
摘要翻译：描述用于经由具有两个脉冲宽度调制状态的控制信号（CTRL）产生输出电压（Vout）的电路的装置和切换方法。测量控制信号（CTRL）频率（Fq）。为了产生控制信号（CTRL），根据控制信号（CTRL）测量频率（Fq），使能第一滞后比较器（31）或第二滞后比较器（32）。有利地，可以以避免进入禁止频带的控制信号（CTRL）频率（Fq）的方式来选择滞后比较器的电压阈值和至少一个频率阈值。

42. 发明申请

US20130328536A1 DC-DC CONVERTING CIRCUIT 有权
标题翻译： DC-DC转换电路
公开(公告)号：US20130328536A1
公开(公告)日：2013-12-12
申请号：US13909545
申请日：2013-06-04
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Takeshi UENO , Tetsuro ITAKURA
IPC分类号： H02M3/158
CPC分类号： H02M3/1582 , H02M3/1563 , H02M3/1588 , Y02B70/1466
摘要： A DC-DC converter converts an input voltage into an output voltage and includes an input terminal, an output terminal, a power stage, a switch driving circuit, a charge pump, and a capacitor. The power stage includes a high-side switch, a low-side switch and an inductor. The switch driving circuit generates a high-side switch driving signal and a low-side switch driving signal. The charge pump generates a first polarity current according to the high-side switch driving signal, and generates a second polarity current having an opposite polarity to the first polarity current according to the low-side switch driving signal. The capacitor generates a first voltage by integrating the first and second polarity currents generated by the charge pump. The switch driving circuit generates the high-side switch driving signal and the low-side switch driving signal according to a difference between the first voltage and a reference voltage.
摘要翻译： DC-DC转换器将输入电压转换为输出电压，并且包括输入端子，输出端子，功率级，开关驱动电路，电荷泵和电容器。功率级包括高边开关，低边开关和电感。开关驱动电路产生高侧开关驱动信号和低侧开关驱动信号。电荷泵根据高侧开关驱动信号产生第一极性电流，并根据低侧开关驱动信号产生与第一极性电流相反的极性的第二极性电流。电容器通过对由电荷泵产生的第一和第二极性电流进行积分来产生第一电压。开关驱动电路根据第一电压和参考电压之间的差产生高侧开关驱动信号和低侧开关驱动信号。

43. 发明申请

US20130307511A1 HYSTERETIC CURRENT MODE CONTROLLER FOR A BIDIRECTIONAL CONVERTER WITH LOSSLESS INDUCTOR CURRENT SENSING 有权
标题翻译：用于具有无电感电感电流感测的双向转换器的滞后电流模式控制器
公开(公告)号：US20130307511A1
公开(公告)日：2013-11-21
申请号：US13983732
申请日：2012-02-08
申请人： Ian Douglas De Vries
发明人： Ian Douglas De Vries
IPC分类号： H02M3/156 , G01R27/26
CPC分类号： H02M3/1563 , G01R19/0092 , H02M3/156 , H02M2001/0009 , H02M2001/0025
摘要： A system and circuit for achieving bidirectional hysteretic current mode control of a converter. The system comprises a summer that provides a constant hysteresis and has added switching noise immunity, a comparator, a lossless inductor current sense means and a converter. A circuit using the inductors internal resistance for sensing the current through an inductor in a lossless manner is described. The circuit preserves both DC and dynamic current information while incorporating the RC time constant, difference amplifier and signal amplification, all using only one amplifier. This circuit provides excellent common mode and differential noise immunity, while still having a high bandwidth and small group delay of the current signal. A method to accomplish stability of a current mode controlled converter when closing the loop to control the output voltage with very high accuracy and gain is described.
摘要翻译：用于实现转换器的双向迟滞电流模式控制的系统和电路。该系统包括提供恒定滞后并具有增加的开关噪声抗扰度的夏季，比较器，无损电感器电流检测装置和转换器。描述了使用电感器内部电阻以无损耗方式感测通过电感器的电流的电路。该电路保留了DC和动态电流信息，同时结合了RC时间常数，差分放大器和信号放大，全部只使用一个放大器。该电路提供了优异的共模和差分噪声抗扰度，同时仍然具有高带宽和小的电流信号延迟。描述当闭合回路以以非常高的精度和增益来控制输出电压时实现电流模式受控变换器的稳定性的方法。

44. 发明申请

US20130300390A1 SWITCH CONTROL CIRCUIT, COUPLED INDUCTOR BOOST CONVERTER INCLUDING THE SAME, AND DRIVING METHOD OF THE COUPLED INDUCTOR BOOST CONVERTER 有权
标题翻译：开关控制电路，包括它们的耦合电感升压转换器以及耦合电感器升压转换器的驱动方法
公开(公告)号：US20130300390A1
公开(公告)日：2013-11-14
申请号：US13889704
申请日：2013-05-08
申请人： FAIRCHILD KOREA SEMICONDUCTOR LTD.
发明人： Jae-Yong LEE , Young Sik LEE , Young-Bae PARK , Young-Je LEE , Eunsung JANG
IPC分类号： H02M3/156
CPC分类号： H02M3/1563 , H02M1/083 , H02M3/156 , H02M3/158 , H02M3/1588
摘要： The present invention related to a switch control circuit, a coupled inductor boost converter including the same, and a driving method thereof. The coupled inductor boost converter includes a first inductor connected between an input voltage and a first node, a second inductor connected between the first node and a second node, and a power switch connected between the first node and a ground, and a switch control circuit. The switch control circuit receives a voltage of the second node and turn on the power switch by using the voltage of the second node at a time when a voltage of the first node becomes a zero voltage.
摘要翻译：本发明涉及开关控制电路，包括该开关控制电路的耦合电感升压转换器及其驱动方法。耦合电感升压转换器包括连接在输入电压和第一节点之间的第一电感器，连接在第一节点和第二节点之间的第二电感器以及连接在第一节点和地之间的电源开关，以及开关控制电路。开关控制电路接收第二节点的电压，并且在第一节点的电压变为零电压时，通过使用第二节点的电压来接通电源开关。

45. 发明申请

US20130257304A1 Switching Power Source Device and Illuminating Apparatus 审中-公开
标题翻译：开关电源装置和照明装置
公开(公告)号：US20130257304A1
公开(公告)日：2013-10-03
申请号：US13836839
申请日：2013-03-15
申请人： TOSHIBA LIGHTING & TECHNOLOGY CORPORATION
发明人： Yuji Takahashi , Noriyuki Kitamura , Hirokazu Otake , Toshio Tsuji
IPC分类号： H02M7/12
CPC分类号： H02M7/125 , H02M3/1563 , H05B33/0815 , Y02B20/346
摘要： A switching power source device includes: a direct power source; and a chopper circuit including a pair of input terminals connected to the direct power source and a pair of output terminals connected to a load, the chopper circuit including a first inductor, a second inductor magnetically coupled to the first inductor, a third inductor connected to the first inductor, a switching element causing an augmented current to flow from the direct power source to the first and third inductors while turned on, a constant current element connected to the switching element in series, a rectifier element causing a reduced current to flow through the first and third inductors while the switching element is turned off, and a drive circuit controlling and turning off a gate voltage of the switching element after the switching element is turned on and the augmented current reaches a constant current element saturated state.
摘要翻译：开关电源装置包括：直接电源; 以及斩波电路，包括连接到所述直接电源的一对输入端子和连接到负载的一对输出端子，所述斩波电路包括第一电感器，磁耦合到所述第一电感器的第二电感器，连接到所述第一电感器的第三电感器第一电感器，一个开关元件，引起增大的电流在导通时从直接电源流向第一和第三电感器，串联连接到开关元件的恒流元件，导致减小的电流流过的整流元件开关元件断开时的第一和第三电感器，以及在开关元件导通并且增大电流达到恒定电流元件饱和状态之后控制和截止开关元件的栅极电压的驱动电路。

46. 发明申请

US20130176004A1 SWITCHING MODE POWER SUPPLY 审中-公开
标题翻译：切换模式电源
公开(公告)号：US20130176004A1
公开(公告)日：2013-07-11
申请号：US13347345
申请日：2012-01-10
申请人： Pengjie Lai , Jian Jiang , Eric Yang
发明人： Pengjie Lai , Jian Jiang , Eric Yang
IPC分类号： G05F1/10
CPC分类号： H02M3/1563 , H02M2001/0025 , H02M2001/0032 , Y02B70/16
摘要： The present disclosure discloses a switching mode power supply with constant peak current mode control. During the operation of the switching mode power supply, in one hand, the current flowing through a high-side switch is sensed and compared to a current reference signal to control the turning off of the high-side switch; in the other hand, the output voltage is sensed and compared to a voltage reference signal to control the turning on of the high-side switch. In addition, the current reference signal may be adjusted to a lower value when the switching mode power supply enters light load condition. By using the above control method, the system performance is highly increased.
摘要翻译：本公开公开了一种具有恒定峰值电流模式控制的开关模式电源。在切换模式电源的操作期间，一方面检测流过高侧开关的电流，并将其与电流参考信号进行比较，以控制高侧开关的关断; 另一方面，检测输出电压并将其与电压参考信号进行比较，以控制高侧开关的导通。此外，当开关模式电源进入轻负载状态时，电流参考信号可以被调整到较低的值。通过使用上述控制方法，系统性能大大提高。

47. 发明申请

US20130127557A1 SYSTEM AND METHOD OF MAINTAINING GAIN LINEARITY OF VARIABLE FREQUENCY MODULATOR 有权
标题翻译：维持变频调制器的增益线性的系统和方法
公开(公告)号：US20130127557A1
公开(公告)日：2013-05-23
申请号：US13537708
申请日：2012-06-29
申请人： M. Jason Houston , Steven P. Laur , Rhys S.A. Philbrick
发明人： M. Jason Houston , Steven P. Laur , Rhys S.A. Philbrick
IPC分类号： H03K7/06
CPC分类号： H03K7/08 , H02M3/156 , H02M3/1563 , H03K3/0231 , H03K7/06 , H03K7/10
摘要： A variable frequency modulator including a compensation network, first and second pulse control networks and a linearity controller. The compensation network is configured to provide a compensation signal indicative of an output load condition. The first pulse control network is configured to initiate pulses on a pulse control signal and to adjust operating frequency based on changes of the compensation signal. The second pulse control network is configured to terminate the pulses on the pulse control signal based on a predetermined timing parameter. The linearity controller is configured to adjust timing of terminating the pulses based on a predetermined steady state operating frequency and an actual operating frequency to maintain modulator gain at a constant level.
摘要翻译：一种包括补偿网络，第一和第二脉冲控制网络和线性控制器的可变频率调制器。补偿网络被配置为提供表示输出负载条件的补偿信号。第一脉冲控制网络被配置为在脉冲控制信号上启动脉冲，并且基于补偿信号的变化来调整工作频率。第二脉冲控制网络被配置为基于预定的定时参数终止脉冲控制信号上的脉冲。线性控制器被配置为基于预定的稳态工作频率和实际工作频率来调整终止脉冲的定时，以将调制器增益维持在恒定水平。

48. 发明申请

US20130069548A1 Switching Power Supply, Luminaire, and Control Method for the Luminaire 有权
标题翻译：开关电源，灯具和灯具的控制方法
公开(公告)号：US20130069548A1
公开(公告)日：2013-03-21
申请号：US13565493
申请日：2012-08-02
申请人： Yuji Takahashi , Noriyuki Kitamura , Koji Suzuki , Koji Takahashi , Toru Ishikita
发明人： Yuji Takahashi , Noriyuki Kitamura , Koji Suzuki , Koji Takahashi , Toru Ishikita
IPC分类号： H05B37/02 , H05B37/00 , H02M3/335
CPC分类号： H02M3/1563 , H02M3/158 , H05B33/0818
摘要： A switching power supply includes a switching element, a constant current element, a rectifying element, a first inductor, a second inductor, and a control circuit. If the switching element is on, the switching element supplies a power supply voltage to the first inductor and feeds an electric current. The constant current element turns off the switching element if the electric current of the switching element exceeds a predetermined upper limit. The rectifying element feeds the electric current of the first inductor if the switching element is turned off. The second inductor supplies the induced potential to a control terminal of the switching element. The control circuit supplies a pulse-like potential to a control terminal of the constant current element and outputs if an average of the potential is lower than a lower limit.
摘要翻译：开关电源包括开关元件，恒流元件，整流元件，第一电感器，第二电感器和控制电路。如果开关元件导通，则开关元件向第一电感器提供电源电压并馈送电流。如果开关元件的电流超过预定的上限，则恒流元件关断开关元件。如果开关元件关闭，整流元件馈送第一电感器的电流。第二电感器将感应电位提供给开关元件的控制端子。控制电路向恒流元件的控制端子提供脉冲状电位，并且如果电位的平均值低于下限，则输出。

49. 发明申请

US20130063099A1 High electrical field driver 审中-公开
标题翻译：高电场驱动器
公开(公告)号：US20130063099A1
公开(公告)日：2013-03-14
申请号：US13229726
申请日：2011-09-11
申请人： Yen-Wei Hsu , Whei-Chyou Wu
发明人： Yen-Wei Hsu , Whei-Chyou Wu
IPC分类号： G05F1/30
CPC分类号： H02M3/155 , H02M3/1563
摘要： A high electrical field driver for producing high electrical field is invented based on the switching circuit. The inventive high electrical field driver can produce at least one high electrical field.
摘要翻译：基于开关电路发明了用于产生高电场的高电场驱动器。本发明的高电场驱动器可以产生至少一个高电场。

50. 发明授权

US08350547B2 DC to DC converter 有权
标题翻译：直流到直流转换器
公开(公告)号：US08350547B2
公开(公告)日：2013-01-08
申请号：US12878271
申请日：2010-09-09
申请人： Takeshi Ueno , Tetsuro Itakura
发明人： Takeshi Ueno , Tetsuro Itakura
IPC分类号： G05F1/00
CPC分类号： H02M3/1563
摘要： A DC to DC converter includes an input terminal, an output terminal, first and second switches, an inductor, a smoothing unit, a first impedance element, a first resistor element, an operational amplifier and a control unit. The first switch is connected to the input terminal. The second switch is connected to the first switch and a ground terminal. The inductor is connected to the first switch and the output terminal. The smoothing unit is connected to the inductor and the ground terminal. The first impedance element is connected to the smoothing unit. The first resistor element is connected in series with the first impedance element. The operational amplifier is connected to the first impedance element. Reference voltage is added to the operational amplifier. The control unit controls the first and second switches according to a control signal outputted from the operational amplifier.
摘要翻译： DC-DC转换器包括输入端子，输出端子，第一和第二开关，电感器，平滑单元，第一阻抗元件，第一电阻元件，运算放大器和控制单元。第一个开关连接到输入端。第二开关连接到第一开关和接地端子。电感器连接到第一开关和输出端子。平滑单元连接到电感器和接地端子。第一阻抗元件连接到平滑单元。第一电阻元件与第一阻抗元件串联连接。运算放大器连接到第一阻抗元件。参考电压加到运算放大器上。控制单元根据从运算放大器输出的控制信号来控制第一和第二开关。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式