Thunderchild
New Member
ok so i've had this idea for some time not getting along that well with coils and high frequency i thought this up:
first a large condenser to "filter" or act as like a backup for a sudden burst be it needed. then i have a square wave generator that has a duty cycle that can be varied by an inputed voltage (the final output as feedback). this will drive a power transistor followed but a very large condenser and then a coil and another condenser as a very low frequency low pass filter to make it all smoth again. another way i thought would be to use a window comparator instead of the variable duty clyce oscilator that would sense the voltage and switch the power transistor on and off in a very small "window" but i do not know if the ripple would be acceptable but it is simpler than the other way. the only problem is isolation in the case of using the mains as the source as the only precaution i know of there is to make sure that GND (negative) is the neutral of the mains supply that in the presence of the earth connection (theoretically present in all mains sockets nowadays but not so much here in italy) i can identify the neutral and automatically switch polarity.
OK so now u can all tell me how nuts i am ! :!:
first a large condenser to "filter" or act as like a backup for a sudden burst be it needed. then i have a square wave generator that has a duty cycle that can be varied by an inputed voltage (the final output as feedback). this will drive a power transistor followed but a very large condenser and then a coil and another condenser as a very low frequency low pass filter to make it all smoth again. another way i thought would be to use a window comparator instead of the variable duty clyce oscilator that would sense the voltage and switch the power transistor on and off in a very small "window" but i do not know if the ripple would be acceptable but it is simpler than the other way. the only problem is isolation in the case of using the mains as the source as the only precaution i know of there is to make sure that GND (negative) is the neutral of the mains supply that in the presence of the earth connection (theoretically present in all mains sockets nowadays but not so much here in italy) i can identify the neutral and automatically switch polarity.
OK so now u can all tell me how nuts i am ! :!: