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https://e2e.ti.com/support/tools/simulation-hardware-system-design-tools-group/sim-hw-system-design/f/simulation-hardware-system-design-tools-forum/679140/tida-01494-purpose-of-dual-comparator-u1a-circuit
你好！
请解释双比较器 IC U1A 的用途是什么 、其输出连接到 PFC 控制器 UCC28180的 FREQ 引脚。 我 不理解 电路中该部分工作背后的概念。
Swathika Rao
