I am trying to design a 12V Induction heater by switching mosfets the schematic that i used is given in the link below
http://www.armory.com/~rstevew/Public/Motors/H-Bridges/Blanchard/h-bridge.htm
I am giving switching signals using Arduino Pin 12 and Pin 13 to Transistors.


This is the type waveform obtained at output terminals which switches between 9 and 11v .What could be the problem and how can i simulate this ?

 

http://kaizerpowerelectronics.dk/general-electronics/royer-induction-heater/
Max.

 

There is large difference what will be the object You are going to warm. If that is steel, then 12 V is only few times too small as more often used 48V, thus You have a chances to get Q-factor high enough. But if You have a semiconductors like Silicone or Germanium, the some 3...5...10 kilovolts are mandatory, otherhow the material will sneeze on Your inductor of 12 V. Actually even for steel the professional aggregates use the 380 Volts 3 phases, and that is far not because the foolishness. If for the average induction heater one need the 10...20...30 kW, then 12 Volt will demand at least the 100...500 Amps. Where do You will get those if accumulator may give such only for few SECONDS long.

 

http://danyk.cz/induk_en.html

Number 3 is low voltage...

 

Danyk circuits are always genially simple and, surprize, all them are working without of big pain

 

There is large difference what will be the object You are going to warm. If that is steel, then 12 V is only few times too small as more often used 48V, thus You have a chances to get Q-factor high enough. But if You have a semiconductors like Silicone or Germanium, the some 3...5...10 kilovolts are mandatory, otherhow the material will sneeze on Your inductor of 12 V. Actually even for steel the professional aggregates use the 380 Volts 3 phases, and that is far not because the foolishness. If for the average induction heater one need the 10...20...30 kW, then 12 Volt will demand at least the 100...500 Amps. Where do You will get those if accumulator may give such only for few SECONDS long.

It is just a test circuit i dont want to have power more than 100 W . Initially if it could warm a iron nail . Problem i am getting is not having proper square wave output at output

 

RE:""Problem i am getting is not having proper square wave output at output""
Didnt understood Your question: You gave a link to the motor driver but speak about inductor feed. You gave a servo circuit but speak about unknown circuit what activates that servo. As known, induction heater main detail is load matching part, not a H bridge. And that is thing what for 100W is completely different as for 1 kW and so far more for 10kW. There is nothing to test at all. The waveform never will be correct without of proper matching. How it must correctly be done, see the Danyk.cz site as well at the http://www.instructables.com/id/12KW-Induction-Heater/
and http://www.instructables.com/id/30-kVA-Induction-Heater/
or smaller power http://www.rmcybernetics.com/projects/DIY_Devices/diy-induction-heater.htm
or just the Royer as https://markobakula.wordpress.com/power-electronics/500w-royer-induction-heater/