Journal of Applied Sciences
• Articles • Previous Articles Next Articles
CHANG Chang-yuan, YAO Jin－nan, TAN Chun-ling, ZOU Yi-zhao, SHI Long-xin
Received:
Revised:
Online:
Published:
Abstract: We present an efficient CMOS DC-DC converter with automatic PWM/PFM switching, which can automatically switch between pulse width modulation (PWM) and pulse frequency modulation (PFM) modes according to the load variation. An expression of the load current at the threshold of automatic switching is derived. A simulated system works properly, achieving automatic PWM/PFM switching and high efficiency over a wide ranged of varied load.
Key words: pulse width modulation (PWM)/pulse frequency modulation (PFM) automatic switching,switching threshold current, DC-DC converter
CHANG Chang-yuan;YAO Jin－nan;TAN Chun-ling;ZOU Yi-zhao;SHI Long-xin. DC-DC Converter with PWM/PFM Automatic Switching[J]. Journal of Applied Sciences.
0 / / Recommend
Add to citation manager EndNote|Reference Manager|ProCite|BibTeX|RefWorks
URL: https://www.jas.shu.edu.cn/EN/
https://www.jas.shu.edu.cn/EN/Y2007/V25/I4/433
