Santana Poussin 13 relay tube or something
For the second time relay 2SJ, R3 is 360KΩ, W is 330KΩ. C2, R2 is the 3CT resistor capacitive protection circuit. D1 is the freewheel, D2 is the input protection diode; C1 is the absorption surge voltage capacitor.
Santana Poussin 13 relay tube air conditioning, is the car air conditioning relay.
?????? Santana 13 relay principle:
Plus the supply voltage, 1,2 both ends of the voltage is low, not enough to connect the coil at both ends of the pull. At this time, the voltage across the regulator DW is 15V, and the capacitor C3 is charged by C3, W, and R3, and the potential at the 6-pin of the operational amplifier YS gradually decreases, and the 3-pin outputs a trigger pulse at 1 / 3VDW. , 3CT conduction, then all the power supply voltage to the two ends of the coil, so that the coil pull, by adjusting the potentiometer W, you can adjust the 6 feet at the potential down to 1 / 3VDW time to adjust the delay time , For the first time relay 1SJ, R3 is 2KΩ, W is 680KΩ.
