500 watt Invert-er Design .

[thannara123]

Pulsetronics i meant is there any chopper (switching device ) both P-type and N-type enclosed in a ic . not SG3525 and SG3524.

 

[--BawA--]

Let me do a simple calculation for you , as your inverter is capable of delivering an active power of 500Watt , so I presume that you'll be using a 12V Battery at the input side.So if i calculate the Input current flowing in the primary winding of your ferrite transformer,it'll be 500/12 Ampere i.e 41.66 Ampere . If i presume the Rds =8milliohm of your switching device in ON state, i'll get a power discipation of 13.8 watt (using P= I*I*Rds) which is quite high , and will also need a BIG HEATSINK or Forced air cooling or both to discipate such amount of heat
so definetly you are not gonna get any IC which incorporates a switching device capable of switching a High Current (42 Ampere)..

 

[thannara123]

Thanks, so use MOSFET instead of IC ?

 

[--BawA--]

You have to use an IC which is capable of generating pwm signals , now you have to drive the gate of the mosfets connected in push pull topology with those pwm signal.