发明授权
- 专利标题： Active load circuits
- 专利标题（中）： 有源负载电路
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申请号： US778148申请日： 1977-03-16
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公开(公告)号： US4105945A公开(公告)日： 1978-08-08
- 发明人: Nobuya Sano , Hiroshi Goto , Yutaka Hirota
- 申请人： Nobuya Sano , Hiroshi Goto , Yutaka Hirota
- 申请人地址： JPX
- 专利权人： Matsushita Electric Industrial Co., Ltd.
- 当前专利权人： Matsushita Electric Industrial Co., Ltd.
- 当前专利权人地址： JPX
- 优先权： JPX51-28718 19760316; JPX51-29495 19760317
- 主分类号： G11B23/00
- IPC分类号： G11B23/00 ; H03F1/34 ; H03G5/00 ; H03H11/28 ; H04R3/08
摘要：
An active load circuit is interconnected between a signal source such as a pickup cartridge and an amplifier which acts as an impedance matching resistor. An equivalent resistance provided by the amplifier as viewed from the signal source equals a required resistance for impedance matching, and the noise voltage is considerably reduced as compared with that produced by a conventional matching resistor.
公开/授权文献
- US6044711A Force sensing apparatus 公开/授权日：2000-04-04
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