Title:
エンベロープ追跡型変調器のための改善された共振抑制
Document Type and Number:
Japanese Patent JP6392786
Kind Code:
B2
Abstract:
An envelope tracking power supply arranged to generate a modulated supply voltage in dependence on a reference signal, comprising a first path for tracking low frequency variations in the reference signal and a second path for tracking high frequency variations in the reference signal, and further comprising a combiner having a low frequency combining element for the first path and a high frequency combining element for the second path, and for generating the modulated supply voltage, wherein there is further provided sensing circuitry for sensing a resonance signal in the low or high frequency combining element, and adjusting circuitry for adjusting a signal in the first path in dependence on the sensed resonance signal.
Inventors:
Gerrard Winpenny
Application Number:
JP2015555729A
Publication Date:
September 19, 2018
Filing Date:
January 31, 2014
Export Citation:
Assignee:
EPCOS AG
International Classes:
H03F1/02; H02M1/00; H03F3/24
Foreign References:
| WO2013115039A1 | ||||
| US5543753 |
Attorney, Agent or Firm:
Yasuhiko Murayama
Shinya Mitsuhiro
Tatsuhiko Abe
Shinya Mitsuhiro
Tatsuhiko Abe
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