Title :
A HV input high frequency nonisolated DC/DC converter
Author_Institution :
Semtech Corp., Santa Clara, CA, USA
Abstract :
Small duty cycle, short on-time, and high switching loss are the ultimate limit for high performance nonisolated DC/DC converter designs and applications. This paper introduces a HV input high frequency nonisolated DC/DC converter that can effectively correct all of the above mentioned problems. Significantly reduced MOSFET switching and conduction losses enable high frequency operation without thermal penalty of the power semiconductor devices. Since duty cycle can be extended and programmed in this topology, true ripple cancellation in multiphase configurations is achievable.
Keywords :
DC-DC power convertors; MOSFET; power semiconductor devices; topology; HV input; MOSFET switching; conduction losses; duty cycle; high frequency; nonisolated DC/DC converter; power semiconductor devices; ripple cancellation; short on-time; switching loss; thermal penalty; topology; DC-DC power converters; Frequency conversion; MOSFET circuits; Performance loss; Power MOSFET; Power semiconductor devices; Power semiconductor switches; Switching loss; Thermal conductivity; Topology;
Conference_Titel :
Power Electronics Specialist Conference, 2003. PESC '03. 2003 IEEE 34th Annual
Print_ISBN :
0-7803-7754-0
DOI :
10.1109/PESC.2003.1216790
