This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

UC3825逆变电源故障

Other Parts Discussed in Thread: UC3825

近期用UC3825制作了一个逆变电源,IC直接驱动场管,用推挽式的电路驱动变压器,拓扑结构是全桥的,12V电源,震荡频率是100KHz的。不带变压器时,IC能输出正常信号,但带上变压器和负载后,输出信号出现一边信号时有时无,或者脉宽变窄的现象了。

加变压器前: 3脚:5V;8脚:3.3V;6、7脚:同波形的锯齿波,电压很低;10、12脚:接地;2、16脚:5V

加变压器后:8脚:5.2V。

请专家帮忙看一下这个故障该如何解决呢?