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1. 发明申请

US20150188432A1 SWITCHED MODE ASSISTED LINEAR REGULATOR WITH SEAMLESS TRANSITION BETWEEN POWER TRACKING CONFIGURATIONS 有权
标题翻译：开关模式辅助线性稳压器，具有电力跟踪配置之间的无缝过渡
公开(公告)号：US20150188432A1
公开(公告)日：2015-07-02
申请号：US14585851
申请日：2014-12-30
申请人： Texas Instruments Incorporated
发明人： Kevin Vannorsdel , Mark D. Kuhns , Juha T. Pennanen
IPC分类号： H02M3/158
CPC分类号： H02M3/156 , H02M1/15 , H02M3/1588 , H02M2001/0025 , H02M2001/0045 , H03F1/0227 , H03F3/2173 , H03F2200/432 , Y02B70/1466
摘要： A Switch Node Assisted Linear architecture, including a linear amplifier in parallel with a switched converter, is configurable in two tracking modes: (a) a SMAL regulator in which the amplifier sets toad voltage with an envelope tracking bandwidth, and the switched converter is configured for current assist, and (b) a Switched Mode Power Supply configuration in which the amplifier is switch-decoupled, and the switcher circuit is switched configured with an output capacitor, operable as an SMPS providing load voltage with an adaptive tracking bandwidth that is less than the envelope tracking bandwidth. Staged switching effects substantially seamless transitions between tracking modes, with the amplifier holding the load voltage at a substantially constant envelope tracking voltage (CVET): (a) for ET-AT transitions, the CVET mode enables pre-charging the output capacitor to a target AT voltage, prior to switch-decoupling the amplifier; and (b) for AT-ET transitions, CVET mode enables discharging the output capacitor.
摘要翻译：开关节点辅助线性架构，包括与开关转换器并联的线性放大器，可配置为两种跟踪模式：（a）SMAL稳压器，其中放大器以包络跟踪带宽设置蟾蜍电压，并且配置开关转换器用于当前辅助，以及（b）开关模式电源配置，其中放大器被开关去耦，并且切换器电路由输出电容器切换配置，可用作提供负载电压的SMPS，自适应跟踪带宽较小比包络跟踪带宽。分段切换在跟踪模式之间实现基本无缝的转换，放大器将负载电压保持在基本恒定的包络跟踪电压（CVET）：（a）对于ET-AT转换，CVET模式使输出电容器预充电到目标 AT电压，在放大器切换去耦之前; 和（b）对于AT-ET转换，CVET模式使得放电输出电容器。

2. 发明授权

US09473023B2 Switched mode assisted linear regulator with seamless transition between power tracking configurations 有权
标题翻译：开关模式辅助线性稳压器，可在功率跟踪配置之间实现无缝转换
公开(公告)号：US09473023B2
公开(公告)日：2016-10-18
申请号：US14585851
申请日：2014-12-30
申请人： Texas Instruments Incorporated
发明人： Kevin Vannorsdel , Mark D. Kuhns , Juha T. Pennanen
IPC分类号： H02M3/158 , H02M3/156 , H03F1/02 , H03F3/217 , H02M1/00 , H02M1/15
CPC分类号： H02M3/156 , H02M1/15 , H02M3/1588 , H02M2001/0025 , H02M2001/0045 , H03F1/0227 , H03F3/2173 , H03F2200/432 , Y02B70/1466
摘要： A Switch Node Assisted Linear architecture, including a linear amplifier in parallel with a switched converter, is configurable in two tracking modes: (a) a SMAL regulator in which the amplifier sets load voltage with an envelope tracking bandwidth, and the switched converter is configured for current assist, and (b) a Switched Mode Power Supply configuration in which the amplifier is switch-decoupled, and the switcher circuit is switched configured with an output capacitor, operable as an SMPS providing load voltage with an adaptive tracking bandwidth that is less than the envelope tracking bandwidth. Staged switching effects substantially seamless transitions between tracking modes, with the amplifier holding the load voltage at a substantially constant envelope tracking voltage (CVET): (a) for ET-AT transitions, the CVET mode enables pre-charging the output capacitor to a target AT voltage, prior to switch-decoupling the amplifier; and (b) for AT-ET transitions, CVET mode enables discharging the output capacitor.
摘要翻译：开关节点辅助线性架构，包括与开关转换器并联的线性放大器，可配置为两种跟踪模式：（a）SMAL稳压器，其中放大器利用包络跟踪带宽设置负载电压，并且配置开关转换器用于当前辅助，以及（b）开关模式电源配置，其中放大器被开关去耦，并且切换器电路由输出电容器切换配置，可用作提供负载电压的SMPS，自适应跟踪带宽较小比包络跟踪带宽。分段切换在跟踪模式之间实现基本无缝的转换，放大器将负载电压保持在基本恒定的包络跟踪电压（CVET）：（a）对于ET-AT转换，CVET模式使输出电容器预充电到目标 AT电压，在放大器切换去耦之前; 和（b）对于AT-ET转换，CVET模式使得放电输出电容器。

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