Hi all
Ive been experimenting around using this 555 circuit to drive a pressure control solenoid for my car in a bid to see if i can control the opening and closing of the pressure ports.
From what i have measured with my meter under my car i found that the following values to be at 9khz frequency and that the duty cycle was showing me to be at 90% i assume this would be the solenoid valve when fully in the open position
I am trying to limit the current flow to a value to that no more than 120ma to be on the safe side so that it will not burn out.
Using the 555 timer schematic circuit to drive the Mosfet
I have worked out in practical terms but not fully understanding if this will be correct values of the resistors? or if there should be other components in this circuit to better the control of current flow.
The solenoid resistance when measured with my meter shows a value of 5 ohms but i have not worked out the value of the inductance of the coil.
Just wanting to know is this the best way to control the limit of the current flow through the circuit to the solenoid?
Any suggestions would greatly appreciate your help.
Thank you in advance.
Ive been experimenting around using this 555 circuit to drive a pressure control solenoid for my car in a bid to see if i can control the opening and closing of the pressure ports.
From what i have measured with my meter under my car i found that the following values to be at 9khz frequency and that the duty cycle was showing me to be at 90% i assume this would be the solenoid valve when fully in the open position
I am trying to limit the current flow to a value to that no more than 120ma to be on the safe side so that it will not burn out.
Using the 555 timer schematic circuit to drive the Mosfet
I have worked out in practical terms but not fully understanding if this will be correct values of the resistors? or if there should be other components in this circuit to better the control of current flow.
The solenoid resistance when measured with my meter shows a value of 5 ohms but i have not worked out the value of the inductance of the coil.
Just wanting to know is this the best way to control the limit of the current flow through the circuit to the solenoid?
Any suggestions would greatly appreciate your help.
Thank you in advance.