Medical treat ventilator controller

The medical treat ventilator controller circuit is composed of astable oscillator, control circuit and power supply circuit, it is shown in the figure 9-155. The astable oscillator circuit is made of resistors R1, R2, potentiometer RP, capacitors C1, C2 and time base integrated circuit IC1. The control circuit consists of resistors R3-R5, transistors V1, V..

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