楼主: bluskly
|
德州仪器TPS53640电源芯片问题。大神请进。 |
点评
只要有负载 应该是可以输出的。但是我们把一个正常输出的板卡,拆掉了CPU以后,电源就不输出了的。是跟不负载有关系的。
14 16pin的2.2R电阻改为0R==>早就进行了实验,没有啥作用。
| ||
点评
断开过负载,没有负载电源是不会输出的。开机瞬间没有找到过PWM信号。看来当不起来的时候,芯片PWM信号都没有
| ||
If by life,you were deceived.
Don't be dismal ,don't be wild! In the day of grief,be mild! Merry days will come, believe. Hearts is living in tomorrow. Present is dejected here: In a moment, passed sorrow that which passes will be dear. |
||
| ||
| ||
If by life,you were deceived.
Don't be dismal ,don't be wild! In the day of grief,be mild! Merry days will come, believe. Hearts is living in tomorrow. Present is dejected here: In a moment, passed sorrow that which passes will be dear. |
||
关于我们|手机版|EDA365 ( 粤ICP备18020198号 )
GMT+8, 2024-11-22 09:35 , Processed in 0.106302 second(s), 34 queries , Gzip On.
地址:深圳市南山区科技生态园2栋A座805 电话:19926409050