升压电路控制参数对升压电压恢复时间的影响

摘要

The working process of booster circuit for electronically‐controlled injector drive power was analyzed from the angle of the charge amount transfer and the mathematic expression between boost voltage recovery time and booster circuit control pa‐rameters before the saturation of inductor current was deduced under the discontinued current mode .Finally ,the expression was proved to agree well with the test .For further analysis on boost circuit after the saturation of inductor current ,it was found that the conversion efficiency of circuit decreased drastically .%从电荷量转移的角度对电控喷油器驱动电源升压电路的工作过程进行分析，推导得出升压电路电感电流断续式（DCM ）工作模式下，电感电流饱和之前升压电压恢复时间与升压电路控制参数之间关系的数学表达式，并通过试验对数学表达式进行验证，发现该数学表达式与试验结果能够很好地吻合。通过分析电感电流饱和之后升压电路的工作状况，发现电感电流饱和之后，升压电路的转换效率急剧下降。