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. 发明授权

CN100578921C 偏置控制器、电流调制器和控制偏置电压信号的方法失效转让
公开(公告)号：CN100578921C
公开(公告)日：2010-01-06
申请号：CN03804355.6
申请日：2003-02-18
申请人：艾利森公司
发明人： D·佩尔克
IPC分类号： H03F1/30 , H03G3/30
CPC分类号： H03F1/0272 , H03F1/025 , H03F1/301 , H03F2200/108 , H03F2200/195 , H03F2200/451 , H03F2200/462 , H03F2200/481 , H03F2200/483 , H03F2200/504
摘要：一种偏置控制器通过动态调节功率放大器偏置电压而将功率放大器的静态电流设置到所需值。通过使用闭环控制，偏置控制器将偏置电压设置到所需的任何值而不管电路部件变化和温度效应。偏置控制器的操作在发射操作之前，如发射脉冲串之前补充了动态偏置电压调节。在功率放大器处于静态条件下的第一状态下，偏置控制器通过检测进入功率放大器的电源电流来调节偏置电压以设置所需静态电流。偏置控制器然后转变到第二状态，此时它维持所调节的偏置电压而不管放大器电源电流。不管其感测进入功率放大器的电源电流的能力，偏置控制器的配置避免了在功率放大器的正常操作期间的耗散性电流感测。

2. 发明公开

CN1636316A 用于功率放大器电路的动态偏置控制器失效转让
公开(公告)号：CN1636316A
公开(公告)日：2005-07-06
申请号：CN03804355.6
申请日：2003-02-18
申请人：艾利森公司
发明人： D·佩尔克
IPC分类号： H03F1/30 , H03G3/30
CPC分类号： H03F1/0272 , H03F1/025 , H03F1/301 , H03F2200/108 , H03F2200/195 , H03F2200/451 , H03F2200/462 , H03F2200/481 , H03F2200/483 , H03F2200/504
摘要：一种偏置控制器通过动态调节功率放大器偏置电压而将功率放大器的静态电流设置到所需值。通过使用闭环控制，偏置控制器将偏置电压设置到所需的任何值而不管电路部件变化和温度效应。偏置控制器的操作在发射操作之前，如发射脉冲串之前补充了动态偏置电压调节。在功率放大器处于静态条件下的第一状态下，偏置控制器通过检测进入功率放大器的电源电流来调节偏置电压以设置所需静态电流。偏置控制器然后转变到第二状态，此时它维持所调节的偏置电压而不管放大器电源电流。不管其感测进入功率放大器的电源电流的能力，偏置控制器的配置避免了在功率放大器的正常操作期间的耗散性电流感测。

3. 发明授权

US5406225A Bias control circuit for radio-frequency power amplifier 失效
标题翻译：射频功率放大器的偏置控制电路
公开(公告)号：US5406225A
公开(公告)日：1995-04-11
申请号：US158766
申请日：1993-11-30
申请人： Sachio Iida , Norio Shimo , Hideaki Sato
发明人： Sachio Iida , Norio Shimo , Hideaki Sato
IPC分类号： H03F1/02 , H03F1/30 , H03F3/193 , H03F3/20 , H04B1/04 , H03G3/30
CPC分类号： H03F1/0244 , H03F1/301 , H03F2200/481 , H03F2200/483
摘要： A bias control circuit for a radio-frequency power amplifier which performs linear power amplification of an intermittent radio-frequency signal. The control circuit includes a bias voltage setting circuit for supplying a bias voltage of a predetermined value to a power amplifying element during a time period in which substantially none of the radio-frequency signal is supplied to the power amplifying element, and for setting the idle current of the power amplifying element to a predetermined value. The control circuit further includes a sample and hold circuit for sampling and holding the bias voltage during the time period in which substantially none of the radio-frequency signal is supplied to the power amplifying element. The output voltage of the sample and hold circuit is supplied as a bias voltage to the power amplifying element during the subsequent time period of supply of the radio-frequency signal to the power amplifying element, whereby the idle current of the power amplifying element is stabilized despite any temperature fluctuation.
摘要翻译：一种用于执行间歇射频信号的线性功率放大的射频功率放大器的偏置控制电路。控制电路包括偏置电压设定电路，用于在基本上没有一个射频信号提供给功率放大元件的时间段内向功率放大元件提供预定值的偏置电压，并且用于设置空闲功率放大元件的电流达到预定值。控制电路还包括采样和保持电路，用于在基本上没有一个射频信号被提供给功率放大元件的时间段内对偏置电压进行采样和保持。在向功率放大元件供给的后续时间期间，采样保持电路的输出电压作为偏置电压被提供给功率放大元件，由此功率放大元件的空闲电流被稳定尽管有任何温度波动。

4. 发明申请

US20030201834A1 Dynamic bias controller for power amplifier circuits 有权
公开(公告)号：US20030201834A1
公开(公告)日：2003-10-30
申请号：US10426710
申请日：2003-04-30
发明人： David R, Pehlke
IPC分类号： H03G003/10
CPC分类号： H03F1/0272 , H03F1/025 , H03F1/301 , H03F2200/108 , H03F2200/195 , H03F2200/451 , H03F2200/462 , H03F2200/481 , H03F2200/483 , H03F2200/504
摘要： A bias controller sets the quiescent current of a power amplifier to a desired value by dynamically adjusting the power amplifier bias voltage. Using closed-loop control, the bias controller sets the bias voltage to whatever value is needed despite circuit component variations and temperature effects. Operation of the bias controller complements dynamic bias voltage adjustment in advance of transmit operations, such as in advance of a transmit burst. In a first state, where the power amplifier is in a quiescent condition, the bias controller adjusts bias voltage to set the desired quiescent current by detecting the supply current into the power amplifier. The bias controller then transitions to a second state, where it maintains the adjusted bias voltage irrespective of amplifier supply current. Despite its ability to sense supply current into the power amplifier, the bias controller's configurations avoid dissipative current sensing during normal operation of the power amplifier.

5. 发明授权

US06614309B1 Dynamic bias controller for power amplifier circuits 有权
标题翻译：功率放大器电路的动态偏置控制器
公开(公告)号：US06614309B1
公开(公告)日：2003-09-02
申请号：US10080225
申请日：2002-02-21
申请人： David R. Pehlke
发明人： David R. Pehlke
IPC分类号： H03F304
CPC分类号： H03F1/0272 , H03F1/025 , H03F1/301 , H03F2200/108 , H03F2200/195 , H03F2200/451 , H03F2200/462 , H03F2200/481 , H03F2200/483 , H03F2200/504
摘要： A bias controller sets the quiescent current of a power amplifier to a desired value by dynamically adjusting the power amplifier bias voltage. Using closed-loop control, the bias controller sets the bias voltage to whatever value is needed despite circuit component variations and temperature effects. Operation of the bias controller complements dynamic bias voltage adjustment in advance of transmit operations, such as in advance of a transmit burst. In a first state, where the power amplifier is in a quiescent condition, the bias controller adjusts bias voltage to set the desired quiescent current by detecting the supply current into the power amplifier. The bias controller then transitions to a second state, where it maintains the adjusted bias voltage irrespective of amplifier supply current. Despite its ability to sense supply current into the power amplifier, the bias controller's configurations avoid dissipative current sensing during normal operation of the power amplifier.
摘要翻译：偏置控制器通过动态调整功率放大器偏置电压将功率放大器的静态电流设置为所需的值。使用闭环控制，偏置控制器将偏置电压设置为尽管电路元件变化和温度影响所需的任何值。偏置控制器的操作在发送操作之前补充动态偏置电压调整，例如在发送突发之前。在功率放大器处于静态状态的第一状态中，偏置控制器通过检测进入功率放大器的供电电流来调节偏置电压以设置所需的静态电流。然后，偏置控制器转变到第二状态，其中它保持调节的偏置电压，而与放大器电源电流无关。尽管它能够感测到功率放大器的电源电流，但是偏置控制器的配置避免了功率放大器正常工作期间的耗散电流检测。

6. 发明申请

US20180342993A1 SENSING CIRCUIT, CORRESPONDING AMPLIFIER, APPARATUS AND METHOD 审中-公开
公开(公告)号：US20180342993A1
公开(公告)日：2018-11-29
申请号：US15984942
申请日：2018-05-21
申请人： STMicroelectronics S.r.l.
发明人： Stefano RAMORINI , Alberto CATTANI , Germano NICOLLINI , Alessandro GASPARINI
IPC分类号： H03F3/217 , H03F3/45
CPC分类号： H03F3/2173 , G01R1/30 , G01R19/0092 , H03F3/45273 , H03F2200/261 , H03F2200/393 , H03F2200/456 , H03F2200/462 , H03F2200/474 , H03F2200/477 , H03F2200/483
摘要： A switching amplifier, such as a Class D amplifier, includes a current sensing circuit. The current sensing circuit is formed by replica loop circuits that are selectively coupled to corresponding output inverter stages of the switching amplifier. The replica loop circuits operated to produce respective replica currents of the output currents generated by the output inverter stages. A sensing circuitry is coupled to receive the replica currents from the replica loop circuits and operates to produce an output sensing signal as a function of the respective replica currents.

7. 发明申请

US20030155978A1 DYNAMIC BIAS CONTROLLER FOR POWER AMPLIFIER CIRCUITS 有权
标题翻译：用于功率放大器电路的动态偏置控制器
公开(公告)号：US20030155978A1
公开(公告)日：2003-08-21
申请号：US10080225
申请日：2002-02-21
发明人： David R. Pehlke
IPC分类号： H03F003/04
CPC分类号： H03F1/0272 , H03F1/025 , H03F1/301 , H03F2200/108 , H03F2200/195 , H03F2200/451 , H03F2200/462 , H03F2200/481 , H03F2200/483 , H03F2200/504
摘要： A bias controller sets the quiescent current of a power amplifier to a desired value by dynamically adjusting the power amplifier bias voltage. Using closed-loop control, the bias controller sets the bias voltage to whatever value is needed despite circuit component variations and temperature effects. Operation of the bias controller complements dynamic bias voltage adjustment in advance of transmit operations, such as in advance of a transmit burst. In a first state, where the power amplifier is in a quiescent condition, the bias controller adjusts bias voltage to set the desired quiescent current by detecting the supply current into the power amplifier. The bias controller then transitions to a second state, where it maintains the adjusted bias voltage irrespective of amplifier supply current. Despite its ability to sense supply current into the power amplifier, the bias controller's configurations avoid dissipative current sensing during normal operation of the power amplifier.
摘要翻译：偏置控制器通过动态调整功率放大器偏置电压将功率放大器的静态电流设置为所需的值。使用闭环控制，偏置控制器将偏置电压设置为尽管电路元件变化和温度影响所需的任何值。偏置控制器的操作在发送操作之前补充动态偏置电压调整，例如在发送突发之前。在功率放大器处于静态状态的第一状态中，偏置控制器通过检测进入功率放大器的供电电流来调节偏置电压以设置所需的静态电流。然后，偏置控制器转变到第二状态，其中它保持调节的偏置电压，而与放大器电源电流无关。尽管它能够感测到功率放大器的电源电流，但是偏置控制器的配置避免了功率放大器正常工作期间的耗散电流检测。

8. 发明授权

EP0601410B1 Bias control circuit for radio-frequency power amplifier 失效
标题翻译：电路用于控制功率放大器的高频信号的偏置
公开(公告)号：EP0601410B1
公开(公告)日：1997-11-05
申请号：EP93119055.7
申请日：1993-11-25
申请人： SONY CORPORATION
发明人： Iida, Sachio, c/o Sony Corporation , Shimo, Norio, c/o Sony Corporation , Sato, Hideaki, c/o Sony Corporation
IPC分类号： H03F1/02
CPC分类号： H03F1/0244 , H03F1/301 , H03F2200/481 , H03F2200/483

9. 发明授权

US06765443B2 Dynamic bias controller for power amplifier circuits 有权
标题翻译：功率放大器电路的动态偏置控制器
公开(公告)号：US06765443B2
公开(公告)日：2004-07-20
申请号：US10426710
申请日：2003-04-30
申请人： David R. Pehike
发明人： David R. Pehike
IPC分类号： H03F304
CPC分类号： H03F1/0272 , H03F1/025 , H03F1/301 , H03F2200/108 , H03F2200/195 , H03F2200/451 , H03F2200/462 , H03F2200/481 , H03F2200/483 , H03F2200/504
摘要： A bias controller sets the quiescent current of a power amplifier to a desired value by dynamically adjusting the power amplifier bias voltage. Using closed-loop control, the bias controller sets the bias voltage to whatever value is needed despite circuit component variations and temperature effects. Operation of the bias controller complements dynamic bias voltage adjustment in advance of transmit operations, such as in advance of a transmit burst. In a first state, where the power amplifier is in a quiescent condition, the bias controller adjusts bias voltage to set the desired quiescent current by detecting the supply current into the power amplifier. The bias controller then transitions to a second state, where it maintains the adjusted bias voltage irrespective of amplifier supply current. Despite its ability to sense supply current into the power amplifier, the bias controller's configurations avoid dissipative current sensing during normal operation of the power amplifier.
摘要翻译：偏置控制器通过动态调整功率放大器偏置电压将功率放大器的静态电流设置为所需的值。使用闭环控制，偏置控制器将偏置电压设置为尽管电路元件变化和温度影响所需的任何值。偏置控制器的操作在发送操作之前补充动态偏置电压调整，例如在发送突发之前。在功率放大器处于静态状态的第一状态中，偏置控制器通过检测进入功率放大器的供电电流来调节偏置电压以设置所需的静态电流。然后，偏置控制器转变到第二状态，其中它保持调节的偏置电压，而与放大器电源电流无关。尽管它能够感测到功率放大器的电源电流，但是偏置控制器的配置避免了功率放大器正常工作期间的耗散电流检测。

10. 发明授权

US06351189B1 System and method for auto-bias of an amplifier 失效
标题翻译：放大器自动偏置的系统和方法
公开(公告)号：US06351189B1
公开(公告)日：2002-02-26
申请号：US09628843
申请日：2000-07-31
申请人： Mika Hirvilampi
发明人： Mika Hirvilampi
IPC分类号： H03F304
CPC分类号： H03F1/0261 , H03F1/306 , H03F2200/481 , H03F2200/483 , H03F2200/504
摘要： The present invention provides a method and apparatus for auto-biasing an amplifier. The auto-bias system of the present invention has an auto-bias feedback loop that adjusts the bias condition of an amplifier to a wanted state between transmission periods. The system monitors a physical quantity indicative of the operating state of the amplifier and controls the amplifier bias so as to control the amplifier operating point sufficiently to compensate for variations in amplifier electrical characteristics, amplifier load, amplifier temperature, and input signals. The system further adjusts the amplifier operating point based on the modulation scheme used to modulate information included in an input signal provided to amplifier, thereby allowing the amplifier to operate in any one of multiple signal modulation systems.
摘要翻译：本发明提供一种用于自动偏置放大器的方法和装置。本发明的自动偏置系统具有自动偏置反馈回路，其将放大器的偏置状态调整到发送周期之间的期望状态。系统监视指示放大器工作状态的物理量，并控制放大器偏置，以充分控制放大器工作点，以补偿放大器电气特性，放大器负载，放大器温度和输入信号的变化。该系统基于用于调制包括在提供给放大器的输入信号中的信息的调制方案进一步调节放大器工作点，从而允许放大器在多个信号调制系统中的任何一个中工作。

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