发明名称 |
ENVELOPE TRACKING WITH LOW FREQUENCY LOSS CORRECTION |
摘要 |
A low frequency loss correction circuit that improves the efficiency of a power amplifier at near-DC low frequencies The low frequency loss correction circuit can include a signal error detection circuit configured to produce an error signal in response to detecting one or more frequency components of a tracking signal below a cutoff frequency that are substantially attenuated through a capacitive path. The low frequency loss correction circuit can include a drive circuit configured to convert the error signal into a low frequency correction signal, and provide the low frequency correction signal to a voltage supply line, the low frequency correction signal including at least some of the one or more frequency components of the tracking signal below a cutoff frequency that are substantially attenuated through the capacitive path. |
申请公布号 |
EP2980988(A1) |
申请公布日期 |
2016.02.03 |
申请号 |
EP20150178690 |
申请日期 |
2015.07.28 |
申请人 |
SKYWORKS SOLUTIONS, INC. |
发明人 |
BALTEANU, FLORINEL G.;MACEDO, JOSE ALEJANDRO;PINGOT, JAKUB F. |
分类号 |
H03F1/02;H02M1/14;H02M3/00;H03F3/08;H03F3/195;H03F3/24;H03F3/68;H03F3/72 |
主分类号 |
H03F1/02 |
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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