- #1
gabrielsky
- 4
- 0
Hi Everyone,
I am trying of constructing a circuit but i do not have much electrical knowledge to put me through this. I hope someone here could provide some advice for me.
Here it is:
I have a circuit that is powered up by 230VAC (main).
I am trying to tap a voltage (205vdc) somewhere from the middle of this circuit. I'm not sure how they converted into 205vdc but i know this voltage currently drive a dc motor.
My question is, can i tap this voltage out in parallel to drive another soleniod valve of 12vdc? I'm sure i need to reduce the voltage to the device of 12vdc.
Does it means that i need a resistor to reduce this?
I have checked the desired specs of the solenoid valve:
Power: 0.4W
voltage: 12vdc
Therefore is the calculation below correct?
load Current: Watt/volt = 0.4/12 = 0.03A
which means to say that resistor should be volt/current
=(205vdc-12vdc)/0.03A = 6.4k ohms
I am trying of constructing a circuit but i do not have much electrical knowledge to put me through this. I hope someone here could provide some advice for me.
Here it is:
I have a circuit that is powered up by 230VAC (main).
I am trying to tap a voltage (205vdc) somewhere from the middle of this circuit. I'm not sure how they converted into 205vdc but i know this voltage currently drive a dc motor.
My question is, can i tap this voltage out in parallel to drive another soleniod valve of 12vdc? I'm sure i need to reduce the voltage to the device of 12vdc.
Does it means that i need a resistor to reduce this?
I have checked the desired specs of the solenoid valve:
Power: 0.4W
voltage: 12vdc
Therefore is the calculation below correct?
load Current: Watt/volt = 0.4/12 = 0.03A
which means to say that resistor should be volt/current
=(205vdc-12vdc)/0.03A = 6.4k ohms