定时启动模式的控制模组及其电压转换装置;CONTROL MODULE OF CONSTANT ON-TIME MODE AND VOLTAGE CONVERTING DEVICE THEREOF

摘要

一种定时启动模式的控制模组，用于一电压转换装置，该控制模组包含有一比较单元，用来根据一加强回授电压及一比较电压，产生一比较讯号；一回授电压产生单元，用来根据一第一参考电压与对应于该电压转换装置输出的一输出电压的一回授电压间的电压差，产生该加强回授电压；一比较电压产生单元，用来根据一第二参考电压及一控制讯号，产生该比较电压；以及一调整单元，用来取得该加强回授电压的一平均电压，并根据该平均电压及该第二参考电压间的电压差，调整第一参考电压。; a feedback voltage generating unit, for generating the enhanced feedback voltage according to a voltage difference between a first reference voltage and a feedback voltage corresponding to an output voltage of the voltage converting device; a comparing voltage generating unit, for generating the comparing voltage according to a second reference voltage and a control signal; and a adjusting unit, for acquiring an average voltage of the enhanced feedback voltage and adjusting the first reference voltage according to a voltage difference between the average voltage and the second reference voltage.