nodee
Junior Member level 3

Hi All,
Im hoping to use a simple 555 circuit with mosfet (low side) output to drive a solenoid, Im confused over the specs of the solenoid i will need. Am I right to think that I can replace a 24V 12W solenoid with a 6V 3W on a 25% duty cycle at 24V?
The main trouble with the 24V 12W is the heat it generates when continuously on, would the pwm solution run hotter/cooler? Also what is a ideal frequency for the solenoid pwm signal, I'm trying for 20kHz and up to avoid being able to hear it is this the right idea?
Thanks,
Nodee
Im hoping to use a simple 555 circuit with mosfet (low side) output to drive a solenoid, Im confused over the specs of the solenoid i will need. Am I right to think that I can replace a 24V 12W solenoid with a 6V 3W on a 25% duty cycle at 24V?
The main trouble with the 24V 12W is the heat it generates when continuously on, would the pwm solution run hotter/cooler? Also what is a ideal frequency for the solenoid pwm signal, I'm trying for 20kHz and up to avoid being able to hear it is this the right idea?
Thanks,
Nodee