sg3525 ic advice for inverter

[Nathan K]

Hi All,
I'm trying to use a sg3525 ic in a Sinewave PWM. I've looked everywhere
and can't find a straight answer, so I hope that someone here with
experience can assist.

Question 1:
How can I configure (if at all) this device so that given the input, a
SPWM signal, in one clock cycle it will turn on MOSFET Driver Out A for
SPWM(high), and MOSFER Driver Out B for SPWM(low)(with dead time to
ensures both devices don't conduct at the same time).

Question 2:
Is there another device that might do this, that also ensures both
devices don't conduct at the same time. (Dead time)

Thanks in advance,

Nathan

 

[Udo Piechottka]

Question 2:
Is there another device that might do this, that also ensures both
devices don't conduct at the same time. (Dead time)

You find those drivers on irf.com

- Udo

 

[PhattyMo]

Hi All,
I'm trying to use a sg3525 ic in a Sinewave PWM. I've looked everywhere
and can't find a straight answer, so I hope that someone here with
experience can assist.

Question 1:
How can I configure (if at all) this device so that given the input, a
SPWM signal, in one clock cycle it will turn on MOSFET Driver Out A for
SPWM(high), and MOSFER Driver Out B for SPWM(low)(with dead time to
ensures both devices don't conduct at the same time).

Question 2:
Is there another device that might do this, that also ensures both
devices don't conduct at the same time. (Dead time)

Thanks in advance,

Nathan

do a search on www.diyaudio.com ,They use switchers in car amplifer
SMPS's all the time...I seem to recall a couple discussions about
adjusting the dead-time on a '3525. IIRC,you can set/adjust dead time by
adding a resistor.. (but don't quote me on that)

http://www.diyaudio.com/forums/showthread.php?s=&threadid=90881
http://www.diyaudio.com/forums/showthread.php?s=&threadid=83060