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达霄,特点是速度,重点在它的一个专利是,无论那一版本,都与这个专利有联。这个专利的摘要如下,想做它起码来龙去脉要搞清楚:
Date of Patent: Apr. 19, 2005 专利日期;2005,4,19。小心专利还在有效期内!其他不多说了,各按天意。
The invention concerns a power amplifier consisting of three Stages: a first feedback free Stage amplifying the input Signal in current; a Second Stage amplifying in Voltage the Signal output from the first stage and comprising two direct current feedback half circuits Symmetrically implanted and operating over the whole frequency spectrum; a third feedback free Stage amplifying the current derived from the Second Stage and powering a loudspeaker.
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