发明名称 |
A PARALLEL ARRANGED LINEAR AMPLIFIER AND DC-DC CONVERTER |
摘要 |
A power supply system comprises a parallel arrangement of a linear amplifier (LA) and a DC-DC converter (CO). The linear amplifier (LA) has an amplifier output to supply a first current (II) to the load (LO). The DC-DC converter (CO) comprises: a converter output for supplying a second current (12) to the load (LO), a first inductor (Ll), and a switch (SC) coupled to the first inductor (Ll) for generating a current in the first inductor (Ll), and a low-pass filter (FI) arranged between the first inductor (Ll) and the load (LO). The low pass filter (FI) comprises a first capacitor (Cl; CA) which has a first terminal coupled to the switch (SC) an a second terminal coupled to a reference voltage level (GND), and a second inductor (L2; LC) which has a first terminal coupled to the first inductor (Ll) and a second terminal coupled to the load (LO). The low-pass filter further comprises, either: (i) a series arrangement of a second capacitor (C2) and a damping resistor (R2), which series arrangement is arranged in parallel with the first capacitor (Cl), or (ii) a parallel arrangement of a third capacitor (CB) and a damping resistor (RB) arranged in series with the first capacitor (CA), or (iii) a series arrangement of a third inductor (L3) and a damping resistor (R3), which series arrangement is arranged in parallel with the second inductor (L2), or (iv) a parallel arrangement of a fourth inductor (LD) and a damping resistor (RD), which parallel arrangement is arranged in series with the second inductor (LC). |
申请公布号 |
WO2006111892(A3) |
申请公布日期 |
2007.01.11 |
申请号 |
WO2006IB51136 |
申请日期 |
2006.04.12 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V.;BLANKEN, PIETER, G.;MOORE, PAUL, ANTHONY;REEFMAN, DERK;MINNIS, BRIAN |
发明人 |
BLANKEN, PIETER, G.;MOORE, PAUL, ANTHONY;REEFMAN, DERK;MINNIS, BRIAN |
分类号 |
H03F3/217 |
主分类号 |
H03F3/217 |
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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