Hello,

Can anyone give me a lead on how to implement a controller in FPGA 
(VHDL) to control the heating of a tube based on PWM values? I already 
have the PWM Min, Max values.

Thank you in advance!

Lothar M. wrote:
> Alex wrote:
>> I already have the PWM Min, Max values.
> Thats not too much...
> Just go one step back, act like you never heard ANYTHING about your
> particular problem, then read your post and think, what information is
> missing.
>
> Then some very basic questions will arise:
> What kind of "tube"?
an X-ray tube
> What kind of "heating"?
The task is to control the heating of the tube which in turn produces 
tube current.
> Do you have any kind of hardware?
Altera Cyclone IV running on NIOS2
> What does "control" mean to you?
Based on PWM values, the controlling unit has to produce the tube 
current by controlling the heating voltage.
> How did you get those PWM min and max values?
Via a PWM Generator module which exists.
> Whats the PWM frequency?
150MHz
> Wht is the PWM used for?
To control the inverter output.


I hope I have provided the required details.I have very little knowledge 
in this field. Any suggestions will be appreciated.

Thank you!