【TI Course】Q&A on the working principle of LM5175

LiuHong

【TI Course】Q&A on the working principle of LM5175 [Copy link]

 

Hello everyone, I would like to ask what is the PWM signal modulation method of TI's buck-boost chip LM5175, and what is its control loop design, thank you! ! ! ! !

本帖所涉及的视频课程：深入了解升降压变换器家族

led2015

As for the control loop, it probably includes switch regulation, output filtering, PWM control fine-tuning, and load regulation.

LiuHong

led2015 Published on 2023-3-23 11:51 The control loop probably includes switch regulation, output filtering, PWM control fine-tuning, and load regulation.

OK, thank you. Then the PWM modulation mode inside the chip is single carrier dual modulation or dual carrier single modulation to achieve a smooth transition in the transient area of Buck-Boost?