Title :
Reduction of power supply EMI emission by switching frequency modulation
Author :
Lin, Feng ; Chen, Dan Y.
Author_Institution :
Power Electron. Center, Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA
fDate :
1/1/1994 12:00:00 AM
Abstract :
Electromagnetic interference (EMI) emission is always of grave concern for power electronic circuit designers. Due to rapid switching of high current and high voltage, interference is a serious problem in switching power circuits. Here, the effect of frequency modulation on power supply EMI noise is investigated. Significant reduction of emission is possible with the proposed scheme
Keywords :
electromagnetic interference; frequency modulation; power supplies to apparatus; power supply circuits; switching circuits; EMI; electromagnetic interference; high current; high voltage; noise; power electronics; power supply; switching frequency modulation; Circuit noise; Circuit testing; Electromagnetic interference; Frequency modulation; Impedance; Noise reduction; Power supplies; Resistors; Switching circuits; Switching frequency;
Journal_Title :
Power Electronics, IEEE Transactions on
