R
Robotnik
- Jan 1, 1970
- 0
Hello all,
We have been trying to build a prototype of a single-phase power
controller.The amount of power to be output is controlled by a PID
algorithm. The PID algorithm resides in the external flash associated
with a processor. The output from PWM module of the processor controls
the firing of the SCR. Let me add that the input to the PID algorithm
are the current temperature of the heat lamps which are controlled by
the SCR. The temperature is measured using thermocouple and acquired
using SADC.The part till the output from PWM is complete.
I am not sure how to proceed from there.We need an
optoisolator for electrical isolation.And then there is the SCR
firing circuit with a couple of SCRs connected in anti-parellel
fashion. What else shall I need to consider the SCR firing circuit.
Or do I need to change my plans and go in for Mosfet based induction
heating.Could you please shed some light on the above problem.
Thanks in advance,
Robotnik
We have been trying to build a prototype of a single-phase power
controller.The amount of power to be output is controlled by a PID
algorithm. The PID algorithm resides in the external flash associated
with a processor. The output from PWM module of the processor controls
the firing of the SCR. Let me add that the input to the PID algorithm
are the current temperature of the heat lamps which are controlled by
the SCR. The temperature is measured using thermocouple and acquired
using SADC.The part till the output from PWM is complete.
I am not sure how to proceed from there.We need an
optoisolator for electrical isolation.And then there is the SCR
firing circuit with a couple of SCRs connected in anti-parellel
fashion. What else shall I need to consider the SCR firing circuit.
Or do I need to change my plans and go in for Mosfet based induction
heating.Could you please shed some light on the above problem.
Thanks in advance,
Robotnik