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<p><img data-type="gif" src="http://mmbiz.qpic.cn/mmbiz_gif/dx3KibwtDhvezhWjA9OE2EwumicC4kMAsKk2Pz01VsicM98wnG2rBnzvRXWGQfIaBFWuvAEFj8pu4K9TnhxowfPGw/0?wx_fmt=gif" data-ratio="0.1703125" data-w="640" /></p><p> 核心提示：随着社会科学技术的发展，人们对健康的越来越重视，彩超已经成为各个医院必不可少的检测设备了。故此彩超出现故障也就自然而然，而彩超电源故障发生率。</p><p><br /></p><p style="word-break: break-all; font-family: arial, Tahoma, Verdana, STHeiTi, simsun, sans-serif, 宋体; padding-top: 10px; padding-bottom: 10px; color: rgb(85, 85, 85); line-height: 25px; font-size: 14px; white-space: normal; font-stretch: normal; background-color: rgb(255, 255, 255);"> 随着社会科学技术的发展，人们对健康的越来越重视，彩超已经成为各个医院必不可少的检测设备了。故此彩超出现故障也就自然而然，而彩超电源故障发生率更是占整机的70%，故在以下简单分析基本原理流程图，以达到大家对彩超电源的一目了然，把复杂的电路简单化，快速找出故障所在，那么<span style="word-break: break-all; font-family: Verdana, Arial; color: rgb(106, 106, 106); font-size: 13px;"><strong style="word-break: break-all;">彩超电源维修</strong></span>达到事半功倍的效果。</p><p style="word-break: break-all; font-family: arial, Tahoma, Verdana, STHeiTi, simsun, sans-serif, 宋体; padding-top: 10px; padding-bottom: 10px; color: rgb(85, 85, 85); line-height: 25px; font-size: 14px; white-space: normal; font-stretch: normal; background-color: rgb(255, 255, 255);"> 彩超电源并非为一般电子产品电源，而是对数据的高标准、高准确、高精密、稳定无波动，所以其质量尤其重要：抗干扰、稳定性、功率、完善的保护电路、人体的电气安全系数等无不高于其他电子类产品，故复杂的、繁琐的电路就在所难免，下面我们就以非凡彩超电源维修为例简单化延伸来了解其复杂的B超电源电路：</p><p style="word-break: break-all; font-family: arial, Tahoma, Verdana, STHeiTi, simsun, sans-serif, 宋体; padding-top: 10px; padding-bottom: 10px; color: rgb(85, 85, 85); line-height: 25px; font-size: 14px; white-space: normal; font-stretch: normal; background-color: rgb(255, 255, 255);"><o:p style="word-break: break-all; font-family: Verdana, Arial; color: rgb(106, 106, 106);"></o:p><o:p style="word-break: break-all; font-family: Verdana, Arial; color: rgb(106, 106, 106);"></o:p></p><p style="word-break: break-all; font-family: arial, Tahoma, Verdana, STHeiTi, simsun, sans-serif, 宋体; padding-top: 10px; padding-bottom: 10px; color: rgb(85, 85, 85); line-height: 25px; font-size: 14px; white-space: normal; font-stretch: normal; background-color: rgb(255, 255, 255);"> 市电220V 经过噪声滤波器，电源噪声滤波器将来自电源的高频噪声干扰滤除掉，到整流滤波后得到直流300V然后分三路：① 去通过DC/AC转换电路得到约110VAC交变电压供给PC机与显示器用 ② 去副电源供给PWM（脉宽调制）与PS-ON控制电路结合开关机开关通过电源检测控制对开关电路进行作用调整 ③ 300V通过推挽开关电路经过高频开关变压器到输出电路，甚至有些再有输出变压器，其中有+3.3V、±5V、-5.3V、+11V、±12(15)V、+60V、-140V等，不同机型则有不同的电压参数，而高压部分则有±100V--140V左右，各牌子各机型的则可以参考本机器的TEST点，所有的这些就完成了整个电源的处理流程。</p><p style="word-break: break-all; font-family: arial, Tahoma, Verdana, STHeiTi, simsun, sans-serif, 宋体; padding-top: 10px; padding-bottom: 10px; color: rgb(85, 85, 85); line-height: 25px; font-size: 14px; white-space: normal; font-stretch: normal; background-color: rgb(255, 255, 255);"> 简单功能分割，就可以简单明了地去分析故障出现所在，通过是否能开机？显示屏是否有显示？PC主机能否正常工作？±3V、+5V、±12(15)V是否有输出？负载是否有短路的现象？开机后是否有高压？取样保护电路是否正常？PWM元器件是否有正常工作电压？调整是否有输出？等等一系列排查，相信通过示波器、万用表、外接电源法，分立脱离法、静态测量法等等，多种方法相结合，相信彩超电源维修的成功就在眼前。<o:p style="word-break: break-all; font-family: Verdana, Arial; color: rgb(106, 106, 106);"></o:p></p><p style="word-break: break-all; font-family: arial, Tahoma, Verdana, STHeiTi, simsun, sans-serif, 宋体; padding-top: 10px; padding-bottom: 10px; color: rgb(85, 85, 85); line-height: 25px; font-size: 14px; white-space: normal; font-stretch: normal; background-color: rgb(255, 255, 255);"> 彩超电源的故障有千万种，彩超电源维修的方法也有各自精彩，但不管怎样，举一反三是最高境界。<o:p style="word-break: break-all; font-family: Verdana, Arial; color: rgb(106, 106, 106);"></o:p></p><p style="word-break: break-all; font-family: arial, Tahoma, Verdana, STHeiTi, simsun, sans-serif, 宋体; padding-top: 10px; padding-bottom: 10px; color: rgb(85, 85, 85); line-height: 25px; font-size: 14px; white-space: normal; font-stretch: normal; background-color: rgb(255, 255, 255);"> 再有彩超电源流程按照负载分又可以分为：① 供给数字处理电路：为数字电路和数字扫描变换器,其主要为计算机图像处理系统，电压主要参数有±3V、+5V、±12(15)V，这组的负载是比较多的，故需要的电流功率都是比较大的。 ② 供给模拟电路：用来供给超声脉冲放大、相位、检波、操作功能等视频放大电路，电压主要参数有+5V、±12等。③ 供给脉冲电路电源：用来供高压给探头的发射电路，其电压的高低会影响探测的深度和分辨率，其电压主要参数有±100V----±130V左右。<o:p style="word-break: break-all; font-family: Verdana, Arial; color: rgb(106, 106, 106);"></o:p></p><p style="word-break: break-all; font-family: arial, Tahoma, Verdana, STHeiTi, simsun, sans-serif, 宋体; padding-top: 10px; padding-bottom: 10px; color: rgb(85, 85, 85); line-height: 25px; font-size: 14px; white-space: normal; font-stretch: normal; background-color: rgb(255, 255, 255);"> 在<span style="word-break: break-all; font-family: Verdana, Arial; color: rgb(106, 106, 106); font-size: 13px;"><strong style="word-break: break-all;">彩超电源维修</strong></span>时候，可以根据上面三种不同作用的功能区分故障所在点，做到胆大心细，思路清晰，战胜复杂繁琐的彩超电源就不是难题。</p><p style="word-break: break-all; font-family: arial, Tahoma, Verdana, STHeiTi, simsun, sans-serif, 宋体; padding-top: 10px; padding-bottom: 10px; color: rgb(85, 85, 85); line-height: 25px; font-size: 14px; white-space: normal; font-stretch: normal; background-color: rgb(255, 255, 255);"><br /></p><p style="max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); font-size: 16px; white-space: normal; line-height: 25.6px; box-sizing: border-box !important; word-wrap: break-word !important; background-color: rgb(255, 255, 255);"><span style="max-width: 100%; font-family: Arial, Verdana, sans-serif; line-height: 1.75em; text-indent: 0em; font-size: 14px; box-sizing: border-box !important; word-wrap: break-word !important;">地址：广州市天河区银利街银利茶叶博览中心E栋4楼E4030室 </span><span style="max-width: 100%; font-family: Arial, Verdana, sans-serif; text-indent: 0em; font-size: 14px; line-height: 1.75em; box-sizing: border-box !important; word-wrap: break-word !important;"> </span></p><p style="max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); text-indent: 0em; white-space: normal; font-size: 12px; font-family: Arial, Verdana, sans-serif; line-height: 1.75em; box-sizing: border-box !important; word-wrap: break-word !important; background-color: rgb(255, 255, 255);"><span style="max-width: 100%; font-size: 14px; line-height: 1.75em; box-sizing: border-box !important; word-wrap: break-word !important;">邮编：510507</span></p><p style="max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); text-indent: 0em; white-space: normal; font-size: 12px; font-family: Arial, Verdana, sans-serif; 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font-size: 14px; box-sizing: border-box !important; word-wrap: break-word !important;">全国统一免费服务热线：400-020-6788</span></p><p style="max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); text-indent: 0em; white-space: normal; font-size: 12px; font-family: Arial, Verdana, sans-serif; line-height: 1.75em; box-sizing: border-box !important; word-wrap: break-word !important; background-color: rgb(255, 255, 255);"><span style="font-size: 16px; line-height: 24.381px; font-family: 'Helvetica Neue', Helvetica, 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif;">公司官网：http://gb.parts-ultrasound.com/</span><span style="max-width: 100%; font-size: 14px; box-sizing: border-box !important; word-wrap: break-word !important;"></span></p><p style="max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); font-size: 16px; white-space: normal; line-height: 24.381px; box-sizing: border-box !important; word-wrap: break-word !important; background-color: rgb(255, 255, 255);"><span style="max-width: 100%; line-height: 1.75em; text-indent: 0em; font-size: 14px; font-family: Arial, Verdana, sans-serif; box-sizing: border-box !important; word-wrap: break-word !important;">微信公众帐号：</span></p><p><img data-s="300,640" data-type="jpeg" src="http://mmbiz.qpic.cn/mmbiz_jpg/dx3KibwtDhvfh2wVX4NftfnfjcZWIKK6EQDWtTTsYwjfQBnsqkThAZP5OlDmg5S3g22gSqMWhAxr2O4MydSJHnQ/0?wx_fmt=jpeg" data-ratio="1" data-w="258" /></p><p style="max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); text-indent: 0em; white-space: normal; font-size: 12px; font-family: Arial, Verdana, sans-serif; line-height: 1.75em; box-sizing: border-box !important; word-wrap: break-word !important; background-color: rgb(255, 255, 255);"><span style="max-width: 100%; font-size: 14px; box-sizing: border-box !important; word-wrap: break-word !important;">维修咨询：QQ: 712638 404</span><br style="max-width: 100%; box-sizing: border-box !important; word-wrap: break-word !important;" /></p><p style="max-width: 100%; min-height: 1em; color: rgb(62, 62, 62); 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发表于 2020-10-19 23:23:47