公开(公告)号：US20250050051A1

公开(公告)日：2025-02-13

申请号：US18718465

申请日：2022-12-26

Applicant: BMC (TIANJIN) MEDICAL CO., LTD.

Inventor： Wenyan YANG ,  Yao TI ,  Fang ZHENG ,  Xin TIAN ,  Qingsong WANG ,  Zhi ZHUANG

IPC: A61M16/10

Abstract: A heating control circuit and a ventilator are provided. The heating control circuit includes a control device and a switching device, an input end of the control device being connected to an alternating-current power source, an output end thereof being connected to a control end of the switching device, and an output end of the switching device is connected to a heating member; and the control device is configured to generate, according to different output voltages of the alternating-current power source, a driving signal for controlling a duty ratio of the switch device to adaptively change, so that the power output from the switching device to the heating member is constant.