光纤探头烧结电路设计  

A designed circuit for sintering optical fiber probe

作　　者：李勇[1] 田旭辉[1] 董珊珊[1] 林楠[1] 杨庆[1] 

机构地区：[1]合肥工业大学仪器科学与光电工程学院,合肥230009

出　　处：《低温与超导》2013年第7期81-83,92,共4页Cryogenics and Superconductivity

基　　金：国家青年基金("立体视觉引导三维微纳米测头"50905053)项目资助

摘　　要：为了满足烧结光纤探头的需要,设计了一种基于脉宽调制芯片CA1524的高压放电装置。首先通过推挽功率放大电路,将直流电逆变为高压交流电;然后经倍压整流得到2000多伏的直流电,最后连接电极棒进行高压放电。使用芯片LPC1768控制CA1524输出波形的占空比来改变放电强度,以及放电时间。In order to meet the needs of sintering optical fiber probe,a discharging device based on CA1524 was presented in this paper.First the direct current（DC） was converted into the high-voltage alternating current by push-pull power amplifier circuit.Then we could get more than 2000 V DC by voltage doubling and rectifying,and it was connected to the electrode rod for high-voltage discharge.The discharge intensity was controlled by the duty cycle that using LPC1768 control the CA1524 output,the discharge time was controlled by the LPC1764 and CA1524.

关 键 词：脉宽调制 CA1524 推挽放大 

分 类 号：TN402[电子电信—微电子学与固体电子学]