Hello all!
I am still a bit novice about electronics so i thought if someone could give some comments about this.
I want to control a resistive heating element according to it's temperature. I have a working circuit with picaxe 20x2 to measure and display the temperature. Also it can output a PWM signal.
I thought that the current source (max 20 A) would be connected to the element and a triac in series and the PWM signal would control the triac.
Is this a proper way do deal a problem like this?
If the current source works with 5v 50 Hz, would it work if i use a let's say 1 kHz PWM to control the current flow across the element?
Or would high power mosfets fit to this problem better because of the zero crossing problem?
Very huge thanks for any interest!
Cheers,
barbis
I am still a bit novice about electronics so i thought if someone could give some comments about this.
I want to control a resistive heating element according to it's temperature. I have a working circuit with picaxe 20x2 to measure and display the temperature. Also it can output a PWM signal.
I thought that the current source (max 20 A) would be connected to the element and a triac in series and the PWM signal would control the triac.
Is this a proper way do deal a problem like this?
If the current source works with 5v 50 Hz, would it work if i use a let's say 1 kHz PWM to control the current flow across the element?
Or would high power mosfets fit to this problem better because of the zero crossing problem?
Very huge thanks for any interest!
Cheers,
barbis
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