天狼晓月 发表于 2010-10-29 00:37:33

2.5V/2.5A~24V/1A DC-DC线性电源

本电源采用了24V 1A通信电源模块，此模块耐过载能力强（主芯片为75W芯片，集成过热、过流保护功能），经过DC-DC输出电压可调变换模块，输出电压为2.5V-24V，输出电流乘电压后不超过25W可持续输出（如12V时可持续输出2A）。最大电流不超过2.5A（恒流特性）。

外壳及后面板电源插座与开关钥匙。
http://bbs.i9i6.com/attachments/month_0811/20081122_c33d6f2098a3a0f88ca6FXIeg3Ldqjof.jpg



第一次设计为LM317调压输出，但后来考虑到效率太低所以采用了DC-DC变换模块。
http://bbs.i9i6.com/attachments/month_0811/20081122_907a0037669277152da9oLPNTJYrUnYP.jpg



http://bbs.i9i6.com/attachments/month_0811/20081122_8ae054a1dbb8e552606ezfa4rqRCsLiN.jpg



这个就是24V 1A的通信电源，标签被划坏了我重新补了一张。
http://bbs.i9i6.com/attachments/month_0811/20081122_7df8d5e075359dcaeb75PRmiNoGWz3WR.jpg



http://bbs.i9i6.com/attachments/month_0811/20081122_6aa3b758b1668240f057EUVOeTpMu7qu.jpg



30V/3A的电压/电流表。（型号91C4）
http://bbs.i9i6.com/attachments/month_0811/20081122_68906db0354571219788Znad7h1VKD2R.jpg



http://bbs.i9i6.com/attachments/month_0811/20081122_9b310e0a40564d4c02840HFDPTqAfAkt.jpg



http://bbs.i9i6.com/attachments/month_0811/20081122_0d6713ade789ae0fee80Le0r4X6iNxwP.jpg



http://bbs.i9i6.com/attachments/month_0811/20081122_706512f1696c23239376gyC8n95ElwR6.jpg



http://bbs.i9i6.com/attachments/month_0811/20081122_8a00eb4de1a16e13f9145haISflmlVg5.jpg



DC-DC变换模块电路板（后期有很多改进，增加了高频滤波电容，增加了保护二极管）
http://bbs.i9i6.com/attachments/month_0811/20081122_ad4e5fb3826a46fdf14carSjmHgVjtZZ.jpg



http://bbs.i9i6.com/attachments/month_0811/20081122_9f830d0804bd600a87e8WsPLhwPcftXk.jpg



http://bbs.i9i6.com/attachments/month_0811/20081122_25a9ac8f38ef569c001aOBq2AgJbfIdM.jpg



http://bbs.i9i6.com/attachments/month_0906/20090612_c6014ea497043e735828uTUQ37VxiuMl.jpg



http://bbs.i9i6.com/attachments/month_0906/20090612_c3da7ce2edc9e90bb6f67siIhpVaPD7x.jpg



http://bbs.i9i6.com/attachments/month_0811/20081122_944d4b735ae637ecb46524QWLDxgAMvO.jpg



http://bbs.i9i6.com/attachments/month_0811/20081122_c0d23ec355fa661e2de0MRnpMvuV31Br.jpg



http://bbs.i9i6.com/attachments/month_0906/20090612_f42852b83d950dcec1d7SVCVfsqkkGYB.jpg



总装图
http://bbs.i9i6.com/attachments/month_0811/20081122_08cb29b7a37613056706GH6HJKPdQqgK.jpg



http://bbs.i9i6.com/attachments/month_0811/20081122_ccfc0f004d22e24708b5PRV9zwWZuizy.jpg



http://bbs.i9i6.com/attachments/month_0811/20081122_8b691bdc77cc3bed73ceKGweRO1OjKln.jpg



http://bbs.i9i6.com/attachments/month_0811/20081122_7337818b96ab54176681uTZKK3BDXpmL.jpg



http://bbs.i9i6.com/attachments/month_0811/20081122_6a40b1f7becd13b67ffeVtWRTQ7nTDyT.jpg



http://bbs.i9i6.com/attachments/month_0811/20081122_87e59da66f956557cb5dhjXTG6VWOlPF.jpg



http://bbs.i9i6.com/attachments/month_0811/20081122_4f0237a8a462030b3ef5gvCcWexEAKBb.jpg



http://bbs.i9i6.com/attachments/month_0811/20081122_10ce68f6f6115f79d14cLgTKX75GPMhZ.jpg



http://bbs.i9i6.com/attachments/month_0811/20081122_426f092a6251a46662e0nl5Z4homRlDP.jpg



测试图（调整输出电压为12V，未接负载）
http://bbs.i9i6.com/attachments/month_0811/20081122_d804ed1760efee798919cpCI4AtFvhxS.jpg



测试图（调整电压为12V，短路输出端子）
http://bbs.i9i6.com/attachments/month_0811/20081122_474d4ed68bffd2d98433PQUHKeBpeRxV.jpg



http://bbs.i9i6.com/attachments/month_0811/20081122_0d5ad2dda44e895ceec0Ziel6qQYpdP5.jpg


http://bbs.i9i6.com/attachments/month_0811/20081122_468bae766f15419b45eeJHKUhYZDT8iL.jpg


6V/0.6A输出
http://bbs.i9i6.com/attachments/month_0811/20081122_b4b909a53578ccc35b64PwIsODlFHrSJ.jpg


http://bbs.i9i6.com/attachments/month_0811/20081122_bdc231626e92ca2fa996J7026s0m1qxU.jpg


http://bbs.i9i6.com/attachments/month_0811/20081122_66dda82ffd95f5991336f7loPs12HFLT.jpg


改进：增加了限流电阻与启动电容，加入了12V 0.06A 3cmX3cm散热风扇。
http://bbs.i9i6.com/attachments/month_0811/20081122_1e9f8a536a9cd171b153DwQVNzC5BNFJ.jpg


http://bbs.i9i6.com/attachments/month_0811/20081122_cd7fbcef507b50610475F0JvvOsgQvFr.jpg


http://bbs.i9i6.com/attachments/month_0811/20081122_713e5e1e8ff45b553da4AW9uUtdd3XXH.jpg



http://bbs.i9i6.com/attachments/month_0811/20081122_e2a7b8648e438d71089dQrg3SBv8b4Wq.jpg



http://bbs.i9i6.com/attachments/month_0811/20081122_e3ad22faaae25a8cc6adaSZBLMKzRR1x.jpg



http://bbs.i9i6.com/attachments/month_0811/20081122_c83386f6b8f25e2e5a5dASFVwjCMfEoD.jpg



此电源下方为18V 1A线性电源。LM317调压设计，无恒流特性。
http://bbs.i9i6.com/attachments/month_0811/20081122_cf215601d86ec2bf513bIujgadJmOBWz.jpg


http://bbs.i9i6.com/attachments/month_0811/20081122_3422a9dc32bf45e7bb93ayFGpfuAwhqB.jpg


http://bbs.i9i6.com/attachments/month_0811/20081122_bbadabd7e36e3bcfe5d0H1hrEgDkEvwN.jpg


END。

BH4SCY 发表于 2011-6-27 12:48:19

做的不错，恒压恒流就更好了。

工委巅峰 发表于 2011-9-4 07:22:03

很好！很强大！

Jayneefu 发表于 2014-2-23 23:29:28

感觉还是很不错的样子。。
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