发明名称 Amplification circuitry
摘要 Amplification circuitry for driving a load in response to an input signal, comprising: a phase locked loop, for producing a pulse width modulated signal for driving the load and input circuitry arranged to control the phase locked loop and vary the pulse width modulated signal in response to the input signal.
申请公布号 US6943623(B2) 申请公布日期 2005.09.13
申请号 US20030457950 申请日期 2003.06.09
申请人 NOKIA CORPORATION 发明人 TREVELYAN PHILIP
分类号 H03F3/217;(IPC1-7):H03F1/24 主分类号 H03F3/217
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