ON 20020713@9:44:45 PM at page:
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dk-e3-net_nz    added 'Questions:

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ON 20020713@9:45:49 PM at page:
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dk-e3-net_nz    added 'Questions:

Hello 
I am wanting to control a AC heating element with a PIC. The power mains is a 50hz cycle so I have rectified this to give me 100 zero crossing points. 
The output is to be switched ON/OFF at the zerocross point for up to 100 cycles/sec or 30 on / 70 off for 30% power level with a resolution of 1%. I have tested and debugged my code and now wish to turn on a IGBT. The Mains voltage into the IGBT will be rectified and control a 2Kw resistive heating element. What do I need to isolate the PIC output and drive a IGBT 600v 22 Amp device? and if all switching is to be at the zerocross point how hot will the IGBT actually get? Do I need a large or small heatsink.
Thanks Dennis'



ON 20020714@4:55:43 PM at page:
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JMN-EFP-786 James Newton edited the page