RCs Impact Switchmode Power Supply Performance

摘要

RC components of an SMPS have many characteristics that aren't shown on a typical schematic diagram. Each component exhibits parasitic behavior that degrades the SMPS conversion efficiency. Other components also contribute to efficiency loss: The SMPS switch (usually a MOSFET) has several characteristics that degrade efficiency, and power consumption in the SMPS controller obviously reduces efficiency. Even p. c. board traces can degrade efficiency to a small degree if poorly designed.