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500) {this.resized=true; this.width=500; this.alt='这是一张缩略图，点击可放大。\n按住CTRL，滚动鼠标滚轮可自由缩放';this.style.cursor='hand'}" onclick="if(!this.resized) {return true;} else {window.open('http://u.dianyuan.com/bbs/u/36/1134832604.jpg?x-oss-process=image/watermark,g_center,image_YXJ0aWNsZS9wdWJsaWMvd2F0ZXJtYXJrLnBuZz94LW9zcy1wcm9jZXNzPWltYWdlL3Jlc2l6ZSxQXzQwCg,t_20');}" onmousewheel="return imgzoom(this);">
该电源是电子报上的,具有限流恒压功能,在分析仿制时碰到些麻烦:图中“A”点是不是应该接地啊?另外要输出30V,T2的基极是不是应该高于30V?比如32V甚至更高?但两只IC提供给T2的基极电位有那么高吗?还有电流表的接法也看不太懂.
谢谢您的关注.
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