| 发明名称 |
DIRECT CURRENT (DC)-DC CONVERTER HAVING A MULTI-STAGE OUTPUT FILTER |
| 摘要 |
A direct current (DC)-DC converter that includes a first switching converter and a multi-stage filter is disclosed. The multi-stage filter includes at least a first inductance (L) capacitance (C) filter and a second LC filter coupled in series between the first switching converter and a DC-DC converter output. The first LC filter has a first LC time constant and the second LC filter has a second LC time constant, which is less than the first LC time constant. The first LC filter includes a first capacitive element having a first self-resonant frequency, which is about equal to a first notch frequency of the multi-stage filter. |
| 申请公布号 |
US2015194884(A1) |
申请公布日期 |
2015.07.09 |
| 申请号 |
US201514665366 |
申请日期 |
2015.03.23 |
| 申请人 |
RF Micro Devices, Inc. |
发明人 |
Levesque Chris;Southcombe William David;Jones David E.;Yoder Scott;Stockert Terry J. |
| 分类号 |
H02M3/156;H03F3/19;H03F3/21;H04L25/03;H04L25/06 |
主分类号 |
H02M3/156 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. Circuitry comprising:
a first switching converter; and a multi-stage filter comprising a first inductance (L) capacitance (C) filter and at least a second LC filter coupled in series between the first switching converter and a direct current (DC)-DC converter output, such that:
the first LC filter has a first LC time constant and the second LC filter has a second LC time constant, which is less than the first LC time constant; andthe first LC filter comprises a first capacitive element having a first self-resonant frequency, which is about equal to a first notch frequency of the multi-stage filter. |
| 地址 |
Greensboro NC US |
