关于摄像头升压MAX734的发热问题

xw10501

<SPAN lang=EN-US style="FONT-SIZE: 10.5pt; FONT-FAMILY: &#39;Times New Roman&#39;; mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA"><?xml:namespace prefix = v ns = "urn:schemas-microsoft-com:vml" /><v:shapetype id=_x0000_t75 coordsize="21600,21600" o:spt="75" o:preferrelative="t" path="m@4@5l@4@11@9@11@9@5xe" filled="f" stroked="f"><SPAN lang=EN-US style="FONT-SIZE: 10.5pt; FONT-FAMILY: &#39;Times New Roman&#39;; mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA"><v:shapetype id=_x0000_t75 coordsize="21600,21600" o:spt="75" o:preferrelative="t" path="m@4@5l@4@11@9@11@9@5xe" filled="f" stroked="f"><SPAN lang=EN-US style="FONT-SIZE: 10.5pt; FONT-FAMILY: &#39;Times New Roman&#39;; mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA"><v:shapetype id=_x0000_t75 coordsize="21600,21600" o:spt="75" o:preferrelative="t" path="m@4@5l@4@11@9@11@9@5xe" filled="f" stroked="f">大家好!MAX734升压正确，但温度很高，并且在不接摄像头的情况下，它的电流已达320毫安，稳压二极管的温度则更高，电路图如附件所示。希望能得到大家帮助，谢谢！</v:shapetype></SPAN></v:shapetype></SPAN></v:shapetype></SPAN><BR><BR><IMG src="http://www.znczz.com/images/affix.gif"><A target=_blank href="http://down.znczz.com/bbsupfile//upfile/MAX734电路图.doc" target=_blank>MAX734电路图.doc</A>

scorpio

我也用这个的，没问题的！你的电路参数不准确吧！换换电容和电感试试

liang110034

电感大点试试！

liuchangyin

你的电路有问题，要认真调试啊。

xixihaha

kankan

稻草人

电感取18uH的试试。

echao120

电感的值一点要按照datasheet的要求接，高了或者低了都会烧。

654723069

我怎么看不见图呀