基于电荷泵的IR2110全桥驱动电路研究  

Research of IR2110 H-Bridge Power Driver Circuit Based on Charge Pump

作　　者：严延[1] 李峰飞[2] 吴国军[1] 

机构地区：[1]中国地质大学(武汉)机械与电子信息学院,湖北武汉430074 [2]中国地质大学(武汉)工程学院,湖北武汉430074

出　　处：《机械与电子》2009年第11期49-52,共4页Machinery & Electronics

基　　金：中国地质调查局科研项目(1212010760705)

摘　　要：针对自举式IR2110全桥驱动电路无法提供低频及连续驱动的问题,提出了一种基于555定时器构成的电荷泵高端浮动自举电路.通过理论分析、Multisim软件仿真及现场试验,证实了该电荷泵电路能够提供连续稳定的高端浮动电源.给出了相关电路参数及其选择依据,很好地实现了某直流电机的PWM全桥低频驱动.A High- side floating voltage bootstrap circuit by using 555 timer as the charge pump is presented in this paper, which makes it possible for IR2110 bootstrap H -bridge power circuit to drive successively or at a very low frequency. By theoretical analysis, simulation of Mutisim and the actual experimental,it is proved that a continuous and steady volatage supply on high side could be provided by this circuit. Some of the circuit parameters and there choosing bases are given out. The PWM H - bridge drive of a certain DC motor at very low frequency is well achieved.

关 键 词：IR2110 全桥驱动 电荷泵 PWM 555 定时器 

分 类 号：TN431.2[电子电信—微电子学与固体电子学]