Common-mode noise generation in a dc-to-dc converter
Abstract
Analytical and experimental considerations of the common-mode noise in a dc-to-dc converter are discussed. Analyzing the mechanism of the common-mode noise generation by means of a high-frequency equivalent circuit, the output noise voltage generated during the transistor's turn-on time is estimated. This common-mode noise consists mainly of two frequency components distributed in several megahertz. The effects of parasitic parameters on the noise voltage and frequencies are clarified. In addition, the effect of a common-mode choke on the noise suppression is discussed experimentally.
- Publication:
-
IEEE Transactions on Aerospace Electronic Systems
- Pub Date:
- March 1980
- DOI:
- 10.1109/TAES.1980.308947
- Bibcode:
- 1980ITAES..16..130N
- Keywords:
-
- Electromagnetic Noise Measurement;
- Equivalent Circuits;
- Network Analysis;
- Noise Generators;
- Noise Reduction;
- Voltage Converters (Dc To Dc);
- Chokes (Restrictions);
- Noise Spectra;
- Performance Prediction;
- Transistor Circuits;
- Electronics and Electrical Engineering