摘要
使用IR2103作为开关管的驱动电路,通过设计开关频率的降低,减少了以往开关电源对用电系统的高频干扰,特别是采用双电源对IR2103上下场效应管的供电代替传统自举电容的使用,使开关管非常接近理想开关状态。另外采用推挽方式提供开关管和电感放电回路的交叉工作。以上措施不仅使DC-DC降压变换电路的效率提高到了90%左右,而且可以使用价格便宜的普通开关管,这样不但效率提升,而且降低了DC-DC降压变换电路的成本,故本方案具有很强的实用性。
The scheme used IR2103 as the driver circuit switch by reducing the switching frequency de-sign, and the conventional switching power supply high-frequency interference in the electricity system, inparticular the dual power supply IR2103 up and down instead of the traditional self-FET bootstrap capacitoris used to make the switch very close to the ideal state of the switch, in addition to provide push-pull switchand inductance discharge circuit cross work. The above measures not only increase DC-DC converter circuitefficiency to about 90%, and you can use inexpensive ordinary switch. It is not only efficient, but also reducesthe DC-DC buck converter circuit cost. So this program is very practical.
出处
《襄阳职业技术学院学报》
2017年第2期75-78,共4页
Journal of Xiangyang Polytechnic
基金
2015年地方高校国家级大学生创新创业训练计划项目(201512308010)
