[問題] 小訊號放大電路實作
我想要接個小訊號放大電路
要求輸出為一個100V的脈衝電壓(電源供應器可以到150V)
但可以經由調整信號產生器的電壓來調整輸出電壓
http://ppt.cc/!4ZY@.jpg
例如
Vin=5V時 Vo=100
Vin=2.5V 時 Vo=50
這是我參考電子學課本接法
http://ppt.cc/so0C@.jpg
電阻跟接法都一樣 電容是用0.47uF 電晶體是2SD669A
http://ppt.cc/nClY@.jpg
希望出來的圖形是像這樣
http://ppt.cc/1fn1@.jpg
是一個完整的方波
但是實際上出來的卻是這樣
http://ppt.cc/Pi9q@.jpg
很怪的波形 好像提早衰減的感覺
調整R2也沒比較好
請問是哪裡的問題
快被搞瘋了~~
想請對電子實作了解的人幫忙解惑一下
感謝!!
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