正负电源问题

http://diagram.51pcb.net/upload/picture/2006-8/10/0681023273449012.jpg?x-oss-process=image/watermark,g_center,image_YXJ0aWNsZS9wdWJsaWMvd2F0ZXJtYXJrLnBuZz94LW9zcy1wcm9jZXNzPWltYWdlL3Jlc2l6ZSxQXzQwCg,t_20

参照这个我想做一个6-24v的正负电源.
不知道可以吗?
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