Class D Amplifier 怎樣使用BTL橋接
本帖最後由 kk_ho 於 2014-1-1 23:35 編輯看了這討論
http://www.diyaudio.com/forums/class-d/133792-need-input-buffer-design-ideas-icepower-125asx2-btl-mode.html
http://www.icepower.bang-olufsen.com/files/solutions/icepower125asx2_datasheet_1_1_class_d_amplifier.pdf
有三個方案
1. 輸入牛變 +,- (貴牛才可以少相移)
2. 用TI DRV134 (有相移,但缐路簡單)
3. 用4粒opamp (接近完美,但超複雜)
結果我用3.
有人玩2 channel 話衰聲,玩BTL 班友又話好聲,但要加入(3)之線路
但說明書又無講
純粹技術研究,不會發售,開班
BTL buffer circuit:
Build in Toshiba TA7318P VU meter driver
NE5534 Opamp (For Testing purpose)
VISHAY 15ppm 0.1% Resistor
Nichicon MUSE 10uF Bi-polar capacitor for coupling
Nichicon MUSE Capacitor after voltage regulator.
Sound from Heaven cable for Speaker and AC mains.
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