公开(公告)号：US20040070382A1

公开(公告)日：2004-04-15

申请号：US10673684

申请日：2003-09-29

Applicant: Intersil Americas Inc.

Inventor： Michael M. Walters ,  Xuening Li ,  Thomas A. Jochum

IPC: G05F001/40

CPC classification number: H02J1/102 ,  H02M3/156 ,  H02M3/1584

Abstract: A multiphase ripple voltage regulator generator employs a hysteretic comparator referenced to upper and lower voltage thresholds. The hysteretic comparator monitors a master ripple voltage waveform developed across a capacitor supplied with a current proportional to the difference between the output voltage and either the input voltage or ground. The output of the hysteretic comparator generates a master clock signal that is sequentially coupled to PWM latches, the states of which define the durations of respective components of the synthesized ripple voltage. A respective PWM latch has a first state initiated by a selected master clock signal and terminated by an associated phase voltage comparator that monitors a respective phase node voltage.

Abstract translation: 多相纹波电压调节器采用基于上限和下限电压阈值的滞后比较器。 迟滞比较器监视在电容器上产生的主纹波电压波形，其电流与输出电压和输入电压或地之间的差成比例。 迟滞比较器的输出产生顺序耦合到PWM锁存器的主时钟信号，其状态限定合成纹波电压的各个分量的持续时间。 相应的PWM锁存器具有由所选择的主时钟信号启动的第一状态，并且由相关联的相位电压比较器终止，监视相应的相位节点电压。