呼吸机转换开关的设计与应用

摘要

从使用呼吸机病人角度出发，呼吸机在市电停电的情况下，呼吸机在一瞬间应该立即恢复供电，不然，对病人就有生命危险。呼吸机电源转换开关就是为解决这一问题而设计，此转换开关通过比较、延时自锁、延时驱动，控制呼吸机进行电源切换，提供给呼吸机正常的直流电源，保证呼吸机不间断地供电。%Starting from the perspective of patients with ventilator ventilator in case of mains failure, the breathing machine in an instant should immediately restore power supply, otherwise there is danger to the patient. Ventilator power switch is designed to solve this problem, this change-over switch by comparing the time delay locks, delay-driven control of the ventilator power switch, providing a normal DC power to the ventilator to ensure uninterrupted ventilator to supply.