公开(公告)号：US20110084676A1

公开(公告)日：2011-04-14

申请号：US12701465

申请日：2010-02-05

申请人： Yu Cheng Lin ,  Dan Chen ,  We-Hsu Chang

发明人： Yu Cheng Lin ,  Dan Chen ,  We-Hsu Chang

IPC分类号： G05F1/10

CPC分类号： H02M3/156 ,  H02M2001/0022

摘要： A control circuit and method for a power converter controlling adaptive voltage position comprises an adder acquiring an output voltage difference between the output voltage and the reference output voltage, a digital compensator with an Z-domain transfer function to reference to the output voltage difference to generate a pulse width control signal, regulating the least significant bits of a denominator coefficient in the Z-domain transfer function such that a load line function of the power converter is performed via control of the pulse width control signal, and a pulse modulation circuit being controlled by the pulse width control signal to generate the pulse width modulation signal to control ON/OFF of power switch of the power converter. Thus, functions of controlling the negative or positive load lines and function of variable load line required by the operation of multiphase converter can be performed easily without complicated operations.

摘要翻译： 用于控制自适应电压位置的功率转换器的控制电路和方法包括：获取输出电压和参考输出电压之间的输出电压差的加法器，具有参考输出电压差的Z域传递函数的数字补偿器以产生 脉冲宽度控制信号，调节Z域传递函数中的分母系数的最低有效位，使得经由脉冲宽度控制信号的控制来执行功率转换器的负载线功能，并且脉冲调制电路被控制 通过脉宽控制信号产生脉宽调制信号，控制电源转换器电源开关的ON / OFF。 因此，无需复杂的操作就可以容易地执行负极或负载线的控制功能以及多相转换器的运行所需的可变负载线的功能。