专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2012032176A1 CONTROLLED SWITCH 审中-公开
标题翻译：控制开关
公开(公告)号：WO2012032176A1
公开(公告)日：2012-03-15
申请号：PCT/EP2011/065692
申请日：2011-09-09
申请人： ST-ERICSSON SA , BRANCA, Xavier , CHESNEAU, David
发明人： BRANCA, Xavier , CHESNEAU, David
IPC分类号： H03K17/10 , H03K17/687
CPC分类号： H02M1/08 , H02M3/1582 , H02M2001/009 , H03K17/102 , H03K17/6874
摘要： The invention proposes a voltage regulating device having a switch in an electrical circuit between a first node (30, 140) and a second node (40, 130), comprising a first field effect transistor (21, 110) and a second field effect transistor (22, 120) connected in cascade. The switch is controlled by: -setting the gate (G1,G3) of the first transistor to a first electrical potential, and, -to close the switch, setting the gate (G2, G4) of the second transistor to the first potential, or -to open the switch, setting the gate of the second transistor to the electrical potential of the second node, with the difference between the first potential and the second potential then being adapted to allow opening the first transistor and the second transistor. The switch can be used in a switched-mode power supply.
摘要翻译：本发明提出了一种电压调节装置，其具有在第一节点（30,140）和第二节点（40,130）之间的电路中的开关，包括第一场效应晶体管（21,110）和第二场效应晶体管（22,120）级联连接。该开关通过以下方式控制： - 将第一晶体管的栅极（G1，G3）设置为第一电位，并且 - 关闭开关，将第二晶体管的栅极（G2，G4）设置为第一电位，或 - 打开开关，将第二晶体管的栅极设置为第二节点的电位，第一电位和第二电位之间的差异适于允许打开第一晶体管和第二晶体管。开关可用于开关电源。

2. 发明申请

WO2012032177A1 SYMMETRICAL OUTPUT SWITCH-MODE POWER SUPPLY 审中-公开
标题翻译：对称输出开关电源
公开(公告)号：WO2012032177A1
公开(公告)日：2012-03-15
申请号：PCT/EP2011/065693
申请日：2011-09-09
申请人： ST-ERICSSON SA , BRANCA, Xavier , CHESNEAU, David
发明人： BRANCA, Xavier , CHESNEAU, David
IPC分类号： H02M3/158
CPC分类号： G05F1/56 , H02M3/158 , H02M2001/009
摘要： The invention relates to a switched-mode power supply delivering a first (V POS ) and a second (V NEG ) voltage which are symmetrical. It comprises a power stage (30) comprising an inductor (L), and switches (A, B, C, D, E) controlled by control signals. It also comprises a control circuit (34), coupled to the power stage (30), that is able to produce error signals (Verr1, Verr2) as a function of the difference between a reference voltage (Vref) and the first (V POS ) and second (V NEG ) voltages. The power supply comprises a synchronization circuit (38), coupled to the power stage (30) and to the control circuit (34), for generating the control signals in a manner that applies a control strategy adapted to minimize error signals, maintain a non-zero amount of energy in the inductor (L), and maintain the absolute value of the first (V POS ) and second (V NEG ) voltages at substantially equal values.
摘要翻译：本发明涉及传输对称的第一（VPOS）和第二（VNEG）电压的开关式电源。它包括一个包括电感器（L）的功率级（30）和由控制信号控制的开关（A，B，C，D，E）。它还包括耦合到功率级（30）的控制电路（34），其能够产生作为参考电压（Vref）与第一（VPOS）之间的差的函数的误差信号（Verr1，Verr2）和第二（VNEG）电压。电源包括耦合到功率级（30）和控制电路（34）的同步电路（38），用于以施加适于使误差信号最小化的控制策略的方式产生控制信号， - 电感（L）中的零能量，并将第一（VPOS）和第二（VNEG）电压的绝对值保持在基本相等的值。

3. 发明申请

WO2014056971A1 INDEPENDENT OUTPUT CONTROL FOR SINGLE-INDUCTOR, BIPOLAR OUTPUTS, BUCK-BOOST CONVERTERS 审中-公开
标题翻译：单电源，双极输出，升压转换器的独立输出控制
公开(公告)号：WO2014056971A1
公开(公告)日：2014-04-17
申请号：PCT/EP2013/071023
申请日：2013-10-09
申请人： ST-ERICSSON SA
发明人： BRANCA, Xavier
IPC分类号： H02M3/158
CPC分类号： H02M3/1582 , G09G3/3258 , G09G5/18 , H02M2001/009 , Y10T307/406
摘要： A method of driving a power stage configured to provide both positive output voltage higher than a first potential to a positive output and negative output voltage to a negative output, the method comprising: - generating a first control signal; - generating a second control signal; - operating, the first control signal so as to initiate a charging phase, such that a first duty cycle of the first control signal is controlling an amount of energy to be accumulated; - operating, simultaneously, at the control signals so as to initiate an independent discharging phase of the accumulated energy, in a boost-type to the positive output or in a buck-type or boost-type to the negative output, such that a second and third duty cycles of the second an third control signals are controlling an amount of energy to be discharged.
摘要翻译：一种驱动功率级的方法，被配置为向正输出提供高于第一电位的正输出电压和向负输出提供负输出电压，所述方法包括：产生第一控制信号; - 产生第二控制信号; - 操作所述第一控制信号以便启动充电阶段，使得所述第一控制信号的第一占空比控制要累积的能量的量; - 同时操作控制信号，以便以升压型启动积极能量的独立放电阶段为正输出或降压型或升压型至负输出，使得第二并且第二和第三控制信号的第三占空比控制要排出的能量的量。

4. 发明申请

WO2013037583A1 DCM AND PFM MANAGEMENT 审中-公开
标题翻译： DCM和PFM管理
公开(公告)号：WO2013037583A1
公开(公告)日：2013-03-21
申请号：PCT/EP2012/065878
申请日：2012-08-14
申请人： ST-ERICSSON SA , BRANCA, Xavier , CHESNEAU, David
发明人： BRANCA, Xavier , CHESNEAU, David
IPC分类号： H02M3/158
CPC分类号： H02M3/158 , H02M3/156
摘要： The present invention relates to a voltage regulating device comprising a power stage (30) comprising an inductor (L) between a first node (P 1 ) and a second node (P 2 ); a first switch (A) between the first node (Pi) and a power supply node (P 3 ) for which the potential (V bat ) is non-zero and of constant polarity; a first capacitor (C NEG ) between a node (P 5 ) at a reference potential and a second switch (B) coupled to the first node (P 1 ); a second capacitor (C POS ) between a node (P 7 ) at the reference potential and a third switch (C) coupled to the second node (P 2 ); a fourth switch (D) between the second node (P 2 ) and a node (P 8 ) at the reference potential; a fifth switch (E) between the first node (P 1 and a node (P 9 ) at the reference potential; a first output (P 4 ) for delivering a first voltage corresponding to the voltage at the terminals of the first capacitor (C NEG ); a second output (Ρ 6 ) for delivering a second voltage corresponding to the voltage at the terminals of the second capacitor (C POS ); The power stage further comprises at least one comparator (40, 41 ) arranged to detect an inversion of the current in the inductor and the power stage is further arranged to close the fourth and fifth switches and to open the first, second and third switches upon detection of an inversion of the current in the inductor.
摘要翻译：电压调节装置技术领域本发明涉及一种电压调节装置，包括在第一节点（P1）和第二节点（P2）之间包括电感器（L）的功率级（30）第一节点（Pi）和电位（Vbat）为非零且恒定极性的电源节点（P3）之间的第一开关（A）在参考电位的节点（P5）和耦合到第一节点（P1）的第二开关（B）之间的第一电容器（CNEG）; 在参考电位的节点（P7）和耦合到第二节点（P2）的第三开关（C）之间的第二电容器（CPOS）; 在第二节点（P2）和参考电位的节点（P8）之间的第四开关（D）在第一节点（P1和参考电位处的节点（P9）之间的第五开关（E）;用于传送对应于第一电容器（CNEG）的端子处的电压的第一电压的第一输出（P4）; 第二输出（Rho6），用于传送对应于在第二电容器（CPOS）的端子处的电压的第二电压;功率级还包括至少一个比较器（40,41），其被布置成检测电感器中的电流的反转并且功率级还被布置成闭合第四和第五开关，并且在检测到电感器中的电流的反转时打开第一，第二和第三开关。

5. 发明申请

WO2014124715A1 AUDIO AMPLIFIER 审中-公开
标题翻译：音频放大器
公开(公告)号：WO2014124715A1
公开(公告)日：2014-08-21
申请号：PCT/EP2013/074624
申请日：2013-11-25
申请人： ST-ERICSSON SA
发明人： BRANCA, Xavier , CHESNEAU, David , NAGARI, Angelo
IPC分类号： H03F3/217
CPC分类号： H03F3/217
摘要： An audio amplifier for amplifying an audio input signal comprising: - an input supply voltage; - an output stage; and, - a controller coupled to the output stage; wherein: - the output stage is configured to be supplied in voltage by the input supply voltage; - the output stage is configured to generate an audio output signal corresponding to an amplified version of the audio input signal; - the output stage is a DC-DC converter; - the controller is configured to receive the audio input signal; and, - the controller is configured to generate one or more driving commands that are configured to drive the output stage in generating the audio output signal. An apparatus, wireless devices, the use of the audio amplifier and a method of amplifying an input signal are also claimed.
摘要翻译：一种用于放大音频输入信号的音频放大器，包括： - 输入电源电压; - 输出阶段以及 - 耦合到所述输出级的控制器; 其中： - 输出级被配置为通过输入电源电压供电; - 输出级被配置为产生对应于音频输入信号的放大版本的音频输出信号; - 输出级是DC-DC转换器; - 控制器被配置为接收音频输入信号; 以及 - 所述控制器被配置为生成被配置为在产生所述音频输出信号时驱动所述输出级的一个或多个驱动命令。还要求一种装置，无线装置，音频放大器的使用和放大输入信号的方法。

6. 发明申请

WO2014056970A1 INDEPENDENT OUTPUT CONTROL FOR SINGLE-INDUCTOR, BIPOLAR OUTPUTS, BUCK-BOOST CONVERTERS 审中-公开
标题翻译：单电源，双极输出，升压转换器的独立输出控制
公开(公告)号：WO2014056970A1
公开(公告)日：2014-04-17
申请号：PCT/EP2013/071022
申请日：2013-10-09
申请人： ST-ERICSSON SA
发明人： BRANCA, Xavier
IPC分类号： H02M3/158
CPC分类号： H02M3/158 , H02M3/1582 , H02M2001/009
摘要： A method of driving a power stage configured to provide both positive output voltage to a positive output and negative output voltage to a negative output, the method comprising: - generating a first control signal; - generating a second control signal; - operating, the first control signal so as to initiate a charging phase, such that a first duty cycle of the first control signal is controlling an amount of energy to be accumulated; - operating, simultaneously, the first control signal and the second control signal so as to initiate an independent discharging phase of the accumulated energy, in a buck-type or boost-type, to an output of the power stage such that a second duty cycle of the second control signal is controlling an amount of energy to be discharged.
摘要翻译：一种驱动功率级的方法，被配置为向正输出提供正输出电压，将负输出电压提供给负输出，所述方法包括：产生第一控制信号; - 产生第二控制信号; - 操作所述第一控制信号以便启动充电阶段，使得所述第一控制信号的第一占空比控制要累积的能量的量; - 同时操作所述第一控制信号和所述第二控制信号，以便以降压型或升压型的方式启动所述累积能量的独立放电阶段到所述功率级的输出，使得第二占空比的第二控制信号是控制要排出的能量的量。

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