Fixed frequency DC-DC converter

• Main Authors: NGUYEN HUY LE NGOC, FAN JIWEI, ZHAO MINGYUE
• Format: Patent
• Language: Chinese; English
• Published: 04.03.2022
• 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

The invention relates to a fixed frequency DC-DC converter. In a power converter system (200), circuitry (240) generates a first PWM signal and a second PWM signal during a PWM period for controlling the application of power to an inductor. The circuitry (210) generates an error signal having an AC component and a DC component. An error signal is generated in response to an indication of power applied to or generated by the inductor. The circuitry (230) generates a feedback control signal in response to the error signal. The first PWM signal and the second PWM signal are controlled in response to the feedback control signal. 本申请涉及固定频率DC-DC转换器。在功率转换器系统(200)中，电路系统(240)在PWM周期期间生成第一PWM信号和第二PWM信号以用于控制对电感器的功率施加。电路系统(210)生成具有AC分量和DC分量的误差信号。响应于施加到电感器或由电感器产生的功率的指示而生成误差信号。电路系统(230)响应于误差信号而生成反馈控制信号。响应于该反馈控制信号控制第一PWM信号和第二PWM信号。