发明名称 |
DIGITAL DYNAMIC BIAS CIRCUIT |
摘要 |
Circuits and methods for reducing the cost and/or power consumption of a user terminal and/or the gateway of a telecommunications system (550) that may include a telecommunications satellite. Embodiments generate a dynamic input bias signal based upon an information signal envelope (which may be pre-distorted) which is applied to the signal input of a power amplifier (PA), thus reducing average power consumption. Other embodiments further include dynamic linearization (518) of the information signal, and/or variation of the supply voltage to the power amplifier (PA) as a function of the envelope of the information signal. Another aspect is a multi-stage "chained" feedback regulated voltage supply circuit for providing two or more output voltages that may be used as alternative supply voltages to a power amplifier (PA). |
申请公布号 |
WO2017030935(A1) |
申请公布日期 |
2017.02.23 |
申请号 |
WO2016US46715 |
申请日期 |
2016.08.12 |
申请人 |
VIASAT, INC. |
发明人 |
PETROVIC, Branislav;BREWER, Kenneth;BUER, Kenneth;KENT, Steve;JALALEDDINE, Sateh |
分类号 |
H03F1/32;H03F1/02;H03F3/19;H03F3/24;H04B1/04;H04L27/26 |
主分类号 |
H03F1/32 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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