Energy Supply and Environmental Protection will be major is-sues for next century.They are the key factors for our sustainableeconomic development.I would like
Many systems require a±12V power supply. Typical exam-ples include analog circuits or RS-232 driver power supplies. The ±12V typically needs to be g
1 IntroductionFlyback converters are based on the storage of energy in an inductorduring the "on" charging time period t<sub>on</sub>, and discharge of thisener