VOLTAGE REGULATOR AND METHOD FOR CONTROLLING OUTPUT STAGES OF VOLTAGE REGULATOR

• Main Authors: LI CHIHN, HONG SHAN-FONG, CHAO YU-TE, KUAN CHIEN-WEI, HSU YEN-HSUN
• Format: Patent
• Language: Chinese; English
• Published: 22.03.2017
• Subjects: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS; CONTROL OR REGULATION THEREOF; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION

A voltage regulator includes a plurality of output stages and a controller. The plurality of output stages are arranged for selectively enabling to generate output voltages and output currents or not according to a plurality of control signals, respectively. The controller is arranged for sensing the output currents of the output stages, and generating the control signals according to the sensed output currents. When the controller generates the control signals to reduce a quantity of the enabled output stages, the controller determines whether a summation of the sensed output currents is greater than a first threshold or not to determine whether to enable more output stages, then a period of time later, the controller selectively determines whether the summation of the sensed output currents is greater than a second threshold or not to determine whether to enable more output stages, wherein the second threshold is lower than the first threshold. 本发明实施例提供稳压器及控制稳压器的多个输出级的方法。其中，其中种稳压器包括：多个输出级，用于分别根据多个控制信号使能或禁能，