標題: 請問圖中部後級紅圈個線圈同粒電阻有什麼作用? [打印本頁] 作者: t.kaiming 時間: 2011-1-8 18:11 標題: 請問圖中部後級紅圈個線圈同粒電阻有什麼作用? THANK YOU!作者: kk_ho 時間: 2011-1-8 18:28
Output low pass filter, 防止超高頻自激振盪。作者: t.kaiming 時間: 2011-1-9 16:54
會唔會影響音色?作者: hcheung 時間: 2011-1-14 18:00
教科書正解(Introduction to Electroacoustics and Audio Amplifier Design, W. Marshall Leach Jr):
"The voice-coil impedance of a loudspeaker driver is not purely resistive. This can have a major perturbation
on the performance of crossover networks...A matching network, sometimes called a Zobel network, between the crossover network and the voice-coil terminals of a driver can be used to cause the effective load on the crossover network to be resistive."
其實Zobel network 重有一隻電容...作者: kk_ho 時間: 2011-1-16 15:36
Yes, inductor inseries of output, then R+C // to the output terminal.
You can found a cap and resistor locate near of the inductor. (Cap is yellow color)作者: alicechan11 時間: 2016-11-30 22:48 本帖最後由 alicechan11 於 2017-8-2 16:47 編輯