Test Method Research of Magnetic Saturation Current of High-frequency Transformer
When the case of magnetic saturation of high-frequency transformer occurs in switching power supply, the effect to efficiency and output power as well as the harm to power switch tube are analyzed. A method of lowvoltage, low-frequency square wave signal driving the primary coil of high-frequency transformer is introduced. By observing the current waveform of coil with oscilloscope and some following simple calculation, high-frequency magnetic transformer saturation current value can be obtained. The principle, related circuit, specific method, an example and result analysis of measuring are presented.
magnetic staturation high-frequency transformer test method
Hongtao Ma Xiaojun Wang Fenping Zhou
College of Information Science & Engineering Hebei University of Science & Technology Shijiazhuang,China
国际会议
长沙
英文
1656-1658
2009-04-11（万方平台首次上网日期，不代表论文的发表时间）