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1. CN113196652 - DIGITAL ENVELOP TRACKER FOR POWER AMPLIFIER

Office
China
Application Number 201980036503.5
Application Date 15.10.2019
Publication Number 113196652
Publication Date 30.07.2021
Publication Kind A
IPC
H03F 1/02
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
FAMPLIFIERS
1Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
02Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
CPC
H03F 1/0227
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
FAMPLIFIERS
1Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
02Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
0205in transistor amplifiers
0211with control of the supply voltage or current
0216Continuous control
0222by using a signal derived from the input signal
0227using supply converters
H03F 1/025
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
FAMPLIFIERS
1Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
02Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
0205in transistor amplifiers
0211with control of the supply voltage or current
0244Stepped control
025by using a signal derived from the input signal
H03F 3/19
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
FAMPLIFIERS
3Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
189High frequency amplifiers, e.g. radio frequency amplifiers
19with semiconductor devices only
H03F 3/21
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
FAMPLIFIERS
3Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
20Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
21with semiconductor devices only
Applicants INTEL CORPORATION
英特尔公司
Inventors HENZLER STEPHAN
斯蒂芬·亨茨勒
KRANZ CHRISTIAN
克里斯蒂安·克兰兹
SCHUMACHER OTTO
奥托·舒马赫
SOGL BERNHARD
伯恩哈德·索格
Agents 北京东方亿思知识产权代理有限责任公司 11258
Priority Data 18248077 27.12.2018 EP
Title
(EN) DIGITAL ENVELOP TRACKER FOR POWER AMPLIFIER
(ZH) 用于功率放大器的数字包络追踪器
Abstract
(EN) A digital envelop tracker for a power amplifier. The digital envelop tracker includes a supply filter for filtering a supply voltage to a power amplifier, a level selection circuitry configured to determine a level of supply voltage based on an instantaneous power of an input data stream, schedule a series of switching events based on the determined level of supply voltage, and generate a level select signal based on the scheduled series of switching events, and a switch for connecting one of supply voltages to the supply filter based on the level select signal. The level selection circuitry schedules a primary switching event of the switch based on the determined level of supply voltage and secondary switching events of the switch delayed with respect to the primary switching event based on the determined level of supply voltage to generate a filter response of the supply filter with smaller peaking.
(ZH) 用于功率放大器的数字包络追踪器。该数字包络追踪器包括:电源滤波器,用于对功率放大器的电源电压进行滤波;等级选择电路,被配置为基于输入数据流的瞬时功率来确定电源电压等级,基于所确定的电源电压等级调度一系列切换事件,并基于所调度的一系列切换事件生成等级选择信号;以及开关,用于基于等级选择信号将电源电压中的一者连接到所述电源滤波器。等级选择电路基于所确定的电源电压等级来调度开关的主切换事件,并且基于所确定的电源电压等级来调度相对于所述主切换事件延迟的开关的次切换事件,以生成具有较小峰化的电源滤波器的滤波器响应。
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US17059489This application is not viewable in PATENTSCOPE because the national phase entry has not been published yet or the national entry is issued from a country that does not share data with WIPO or there is a formatting issue or an unavailability of the application.