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公开(公告)号：US20140197814A1
公开(公告)日：2014-07-17
申请号：US13740062
申请日：2013-01-11
Applicant: QUALCOMM INCORPORATED
Inventor： Song S. Shi , Pengfei Li , Lennart Karl-Axel Mathe , Yunfei Shi
IPC: G05F3/02
CPC classification number: G05F3/02 , H02M3/155 , H02M3/1582 , H02M2001/008 , H03F1/0238
Abstract: Techniques for generating a boost clock signal for a boost converter from a buck converter clock signal, wherein the boost clock signal has a limited frequency range. In an aspect, the boost clock signal has a maximum frequency determined by Vbst/T, wherein Vbst represents the difference between a target output voltage and a battery voltage, and T represents a predetermined cycle duration. The boost converter may include a pulse insertion block to limit the minimum frequency of the boost clock signal, and a dynamic blanking/delay block to limit the maximum frequency of the boost clock signal. Further techniques are disclosed for generally implementing the minimum frequency limiting and maximum frequency limiting blocks.
Abstract translation: 用于从降压转换器时钟信号产生用于升压转换器的升压时钟信号的技术，其中所述升压时钟信号具有有限的频率范围。 在一方面，升压时钟信号具有由Vbst / T确定的最大频率，其中Vbst表示目标输出电压和电池电压之间的差，T表示预定的周期持续时间。 升压转换器可以包括用于限制升压时钟信号的最小频率的脉冲插入块以及限制升压时钟信号的最大频率的动态消隐/延迟模块。 公开了通常实现最小频率限制和最大频率限制块的其它技术。
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公开(公告)号：US08754707B2
公开(公告)日：2014-06-17
申请号：US13659667
申请日：2012-10-24
Applicant: QUALCOMM Incorporated
Inventor： Lennart Karl-Axel Mathe , Song S Shi , Yunfei Shi
IPC: H03G3/20
CPC classification number: H03F1/0238 , H03F2200/102 , H03F2200/435
Abstract: Techniques for controlling boost converter operation in an envelope tracking (ET) system. In an aspect, an enable generation block is provided to generate an enable signal for a boost converter, wherein the enable signal is turned on in response to detecting that a sum of a first headroom voltage and an enable peak of a tracking supply voltage is greater than an amplifier supply voltage of the ET system. The enable signal may be turned on for a predetermined enable on duration. In another aspect, a target generation block is provided to generate a target voltage for the boost converter, wherein the target voltage comprises the sum of a second headroom voltage and a target peak of the tracking supply voltage.
Abstract translation: 用于控制包络跟踪（ET）系统中升压转换器操作的技术。 在一方面中，提供使能生成块以产生用于升压转换器的使能信号，其中响应于检测到第一余量电压和跟踪电源电压的使能峰值之和更大而导通使能信号 比ET系统的放大器电源电压高。 使能信号可以接通预定使能持续时间。 在另一方面，提供目标产生模块以产生升压转换器的目标电压，其中目标电压包括第二余量电压和跟踪电源电压的目标峰值之和。
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公开(公告)号：US09537450B2
公开(公告)日：2017-01-03
申请号：US14488114
申请日：2014-09-16
Applicant: QUALCOMM Incorporated
Inventor： Lennart Karl-Axel Mathe , Pengfei Li , Song S. Shi , Yunfei Shi , Joseph D. Rutkowski
CPC classification number: H03F1/0222 , H03F1/0227 , H03F3/19 , H03F3/21 , H03F3/245 , H03F2200/102 , H03F2200/451
Abstract: Techniques for dynamically generating a headroom voltage for an envelope tracking system. In an aspect, an initial headroom voltage is updated when a signal from a power amplifier (PA) indicates that the PA headroom is insufficient. The initial headroom voltage may be updated to an operating headroom voltage that includes the initial voltage plus a deficiency voltage plus a margin. In this manner, the operating headroom voltage may be dynamically selected to minimize power consumption while still ensuring that the PA is linear. In a further aspect, a specific exemplary embodiment of a headroom voltage generator using a counter is described.
Abstract translation: 用于动态产生包络跟踪系统的净空电压的技术。 在一方面，当来自功率放大器（PA）的信号指示PA余量不足时，更新初始余量电压。 初始余量电压可以被更新为包括初始电压加上缺陷电压加上余量的操作净空电压。 以这种方式，可以动态选择操作净空电压以最小化功耗，同时仍然确保PA是线性的。 在另一方面，描述了使用计数器的净空电压发生器的具体示例性实施例。
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公开(公告)号：US20140361830A1
公开(公告)日：2014-12-11
申请号：US13911902
申请日：2013-06-06
Applicant: QUALCOMM Incorporated
Inventor： Lennart Karl-Axel Mathe , Yunfei Shi
IPC: H03F1/02
CPC classification number: H03F1/02 , H03F1/0222 , H03F1/0227 , H03F3/195 , H03F2200/102 , H03F2200/432 , H03F2200/435 , H03F2200/504
Abstract: Techniques for efficiently generating a variable boosted supply voltage for an amplifier and/or other circuits are disclosed. In an exemplary design, an apparatus includes an amplifier, a boost converter, and a boost controller. The amplifier receives an envelope signal and a variable boosted supply voltage and provides an output voltage and an output current. The boost converter receives a power supply voltage and at least one signal determined based on the envelope signal and generates the variable boosted supply voltage based on the power supply voltage and the at least one signal. The boost controller generates the at least one signal (e.g., an enable signal and/or a threshold voltage) for the boost converter based on the envelope signal and/or the output voltage. The boost converter is enabled or disabled based on the enable signal and generates the variable boosted supply voltage based on the power supply voltage and the threshold voltage.
Abstract translation: 公开了用于有效地产生放大器和/或其他电路的可变提升电源电压的技术。 在示例性设计中，装置包括放大器，升压转换器和升压控制器。 放大器接收包络信号和可变提升电源电压，并提供输出电压和输出电流。 升压转换器接收基于包络信号确定的电源电压和至少一个信号，并且基于电源电压和至少一个信号产生可变升压的电源电压。 升压控制器基于包络信号和/或输出电压产生用于升压转换器的至少一个信号（例如，使能信号和/或阈值电压）。 升压转换器基于使能信号使能或禁止，并根据电源电压和阈值电压产生可变升压电源电压。
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公开(公告)号：US09837962B2
公开(公告)日：2017-12-05
申请号：US13911902
申请日：2013-06-06
Applicant: QUALCOMM Incorporated
Inventor： Lennart Karl-Axel Mathe , Yunfei Shi
CPC classification number: H03F1/02 , H03F1/0222 , H03F1/0227 , H03F3/195 , H03F2200/102 , H03F2200/432 , H03F2200/435 , H03F2200/504
Abstract: Techniques for efficiently generating a variable boosted supply voltage for an amplifier and/or other circuits are disclosed. In an exemplary design, an apparatus includes an amplifier, a boost converter, and a boost controller. The amplifier receives an envelope signal and a variable boosted supply voltage and provides an output voltage and an output current. The boost converter receives a power supply voltage and at least one signal determined based on the envelope signal and generates the variable boosted supply voltage based on the power supply voltage and the at least one signal. The boost controller generates the at least one signal (e.g., an enable signal and/or a threshold voltage) for the boost converter based on the envelope signal and/or the output voltage. The boost converter is enabled or disabled based on the enable signal and generates the variable boosted supply voltage based on the power supply voltage and the threshold voltage.
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Patent Agency Ranking
公开(公告)号：US09130457B2
公开(公告)日：2015-09-08
申请号：US13659682
申请日：2012-10-24
Applicant: QUALCOMM Incorporated
Inventor： Song S Shi , Lennart Karl-Axel Mathe , Yunfei Shi
CPC classification number: H02M3/1588 , H02M3/156 , H02M3/157 , H02M2001/0009 , Y02B70/1466
Abstract: Simple and efficient techniques for closed loop control of a boost converter. In an aspect, a current feed-forward (CFF) mode of operation includes providing current information to a control logic block controlling transistor switches of the boost converter to advantageously smooth the signals present in the closed loop control of the system. In another aspect, a modified peak current (MPC) mode of operation includes providing a simplified control mechanism based on a peak current mode of operation. Both CFF mode and MPC mode may share similar circuit elements, allowing a single implementation to selectively implement either of these modes of control. Further techniques are provided for determining average current information for the logic block.
Abstract translation: 用于升压转换器闭环控制的简单有效的技术。 在一方面，电流前馈（CFF）操作模式包括向控制逻辑块提供电流信息，所述控制逻辑块控制升压转换器的晶体管开关，以有利地平滑存在于系统的闭环控制中的信号。 在另一方面，修改的峰值电流（MPC）操作模式包括基于峰值电流操作模式提供简化的控制机制。 CFF模式和MPC模式都可以共享类似的电路元件，允许单个实现选择性地实现这些控制模式。 提供用于确定逻辑块的平均当前信息的其它技术。
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公开(公告)号：US20140210559A1
公开(公告)日：2014-07-31
申请号：US13752287
申请日：2013-01-28
Applicant: QUALCOMM INCORPORATED
Inventor： Lennart Karl-Axel Mathe , Pengfei Li , Song S. Shi , Yunfei Shi , Joseph D. Rutkowski
IPC: H03G1/00
CPC classification number: H03F1/0222 , H03F1/0227 , H03F3/19 , H03F3/21 , H03F3/245 , H03F2200/102 , H03F2200/451
Abstract: Techniques for dynamically generating a headroom voltage for an envelope tracking system. In an aspect, an initial headroom voltage is updated when a signal from a power amplifier (PA) indicates that the PA headroom is insufficient. The initial headroom voltage may be updated to an operating headroom voltage that includes the initial voltage plus a deficiency voltage plus a margin. In this manner, the operating headroom voltage may be dynamically selected to minimize power consumption while still ensuring that the PA is linear. In a further aspect, a specific exemplary embodiment of a headroom voltage generator using a counter is described.
Abstract translation: 用于动态产生包络跟踪系统的净空电压的技术。 在一方面，当来自功率放大器（PA）的信号指示PA余量不足时，更新初始余量电压。 初始余量电压可以被更新为包括初始电压加上缺陷电压加上余量的操作净空电压。 以这种方式，可以动态选择操作净空电压以最小化功耗，同时仍然确保PA是线性的。 在另一方面，描述了使用计数器的净空电压发生器的具体示例性实施例。
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公开(公告)号：US20140111276A1
公开(公告)日：2014-04-24
申请号：US13659667
申请日：2012-10-24
Applicant: QUALCOMM INCORPORATED
Inventor： Lennart Karl-Axel Mathe , Song Stone Shi , Yunfei Shi
IPC: H03G99/00
CPC classification number: H03F1/0238 , H03F2200/102 , H03F2200/435
Abstract: Techniques for controlling boost converter operation in an envelope tracking (ET) system. In an aspect, an enable generation block is provided to generate an enable signal for a boost converter, wherein the enable signal is turned on in response to detecting that a sum of a first headroom voltage and an enable peak of a tracking supply voltage is greater than an amplifier supply voltage of the ET system. The enable signal may be turned on for a predetermined enable on duration. In another aspect, a target generation block is provided to generate a target voltage for the boost converter, wherein the target voltage comprises the sum of a second headroom voltage and a target peak of the tracking supply voltage.
Abstract translation: 用于控制包络跟踪（ET）系统中升压转换器操作的技术。 在一方面中，提供使能生成块以产生用于升压转换器的使能信号，其中响应于检测到第一余量电压和跟踪电源电压的使能峰值之和更大而导通使能信号 比ET系统的放大器电源电压高。 使能信号可以接通预定使能持续时间。 在另一方面，提供目标产生模块以产生升压转换器的目标电压，其中目标电压包括第二余量电压和跟踪电源电压的目标峰值之和。
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公开(公告)号：US09372492B2
公开(公告)日：2016-06-21
申请号：US13740062
申请日：2013-01-11
Applicant: QUALCOMM Incorporated
Inventor： Song S Shi , Pengfei Li , Lennart Karl-Axel Mathe , Yunfei Shi
CPC classification number: G05F3/02 , H02M3/155 , H02M3/1582 , H02M2001/008 , H03F1/0238
Abstract: Techniques for generating a boost clock signal for a boost converter from a buck converter clock signal, wherein the boost clock signal has a limited frequency range. In an aspect, the boost clock signal has a maximum frequency determined by Vbst/T, wherein Vbst represents the difference between a target output voltage and a battery voltage, and T represents a predetermined cycle duration. The boost converter may include a pulse insertion block to limit the minimum frequency of the boost clock signal, and a dynamic blanking/delay block to limit the maximum frequency of the boost clock signal. Further techniques are disclosed for generally implementing the minimum frequency limiting and maximum frequency limiting blocks.
Abstract translation: 用于从降压转换器时钟信号产生用于升压转换器的升压时钟信号的技术，其中所述升压时钟信号具有有限的频率范围。 在一方面，升压时钟信号具有由Vbst / T确定的最大频率，其中Vbst表示目标输出电压和电池电压之间的差，T表示预定的周期持续时间。 升压转换器可以包括用于限制升压时钟信号的最小频率的脉冲插入块以及限制升压时钟信号的最大频率的动态消隐/延迟模块。 公开了通常实现最小频率限制和最大频率限制块的其它技术。
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公开(公告)号：US08866547B2
公开(公告)日：2014-10-21
申请号：US13752287
申请日：2013-01-28
Applicant: QUALCOMM Incorporated
Inventor： Lennart Karl-Axel Mathe , Pengfei Li , Song S Shi , Yunfei Shi , Joseph D Rutkowski
CPC classification number: H03F1/0222 , H03F1/0227 , H03F3/19 , H03F3/21 , H03F3/245 , H03F2200/102 , H03F2200/451
Abstract: Techniques for dynamically generating a headroom voltage for an envelope tracking system. In an aspect, an initial headroom voltage is updated when a signal from a power amplifier (PA) indicates that the PA headroom is insufficient. The initial headroom voltage may be updated to an operating headroom voltage that includes the initial voltage plus a deficiency voltage plus a margin. In this manner, the operating headroom voltage may be dynamically selected to minimize power consumption while still ensuring that the PA is linear. In a further aspect, a specific exemplary embodiment of a headroom voltage generator using a counter is described.
Abstract translation: 用于动态产生包络跟踪系统的净空电压的技术。 在一方面，当来自功率放大器（PA）的信号指示PA余量不足时，更新初始余量电压。 初始余量电压可以被更新为包括初始电压加上缺陷电压加上余量的操作净空电压。 以这种方式，可以动态选择操作净空电压以最小化功耗，同时仍然确保PA是线性的。 在另一方面，描述了使用计数器的净空电压发生器的具体示例性实施例。
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