发明名称 |
Hybrid DC-DC converters for power amplifiers |
摘要 |
Methods and apparatus, including computer program products, are provided for hybrid DC-DC converters. In one aspect, there is provided a method. The method may include tracking, by an envelope detector, an envelope of a signal being amplified by an amplifier. The method may further include supplying, by a first direct-current to direct-current converter, power to the amplifier, the power supplied by the first direct-current to direct-current converter including one or more high-frequency components of the envelope tracked by the envelope detector. The method may further include supplying, by a second direct-current to direct-current converter, power to the amplifier, the power supplied by the second direct-current to direct-current converter including one or more low-frequency components of the envelope tracked by the envelope detector. Related systems, apparatuses, and computer program products are also disclosed. |
申请公布号 |
US9331637(B2) |
申请公布日期 |
2016.05.03 |
申请号 |
US201314047437 |
申请日期 |
2013.10.07 |
申请人 |
Nokia Technologies Oy |
发明人 |
Ul Haq Faizan |
分类号 |
H03F3/193;H03F1/02;H03F3/24;H03F3/217 |
主分类号 |
H03F3/193 |
代理机构 |
Mintz Levin Cohn Ferris Glovsky and Popeo, P.C. |
代理人 |
Mintz Levin Cohn Ferris Glovsky and Popeo, P.C. |
主权项 |
1. An apparatus comprising:
an envelope detector to track an envelope of a signal being amplified by an amplifier; a first direct-current to direct-current switching converter supplying, via a first dead time control circuit, power to the amplifier, the power supplied by the first direct-current to direct-current switching converter including one or more high-frequency components of the envelope tracked by the envelope detector, wherein the first direct-current to direct-current switching converter is a switching power supply; and a second direct-current to direct-current switching converter supplying power, via a second dead time control circuit, to the amplifier, the power supplied by the second direct-current to direct-current switching converter including one or more low-frequency components of the envelope tracked by the envelope detector, wherein the second direct-current to direct-current switching converter is another switching power supply. |
地址 |
Espoo FI |