IGBT Forum Discussions

[User17671]

Hi all,

I have a short question. What are the pros and cons for the half-bridge topology compared to the single ended one in induction cookers?

Thanks in advance!

[Thomas_Patrick_ · Accepted solution]

Hi,
The half bridge topology offers quite some advantages compared to the SEPR topology, but also some disadvantages:
Pros:
↑ Very good power efficiency for wide load range (capacitive operation with ZV-turn-off and ZV-turn-on)
↑ Easy to control due to stable VCE voltage
↑ Higher reliability than SE due to less sensitivity on control errors
↑ IGBT are operated from rectified line -> lower voltage class IGBTs can be used
↑ Higher output power capability -> no limitation for output power
↑ Continuous operation at lower power levels
Cons:
↓ More expensive than SEPR due to two power switches and Half Bridge Driver
↓ Larger heatsink and PCB needed

I hope this can help you for deciding which topology to choose.

Best regards,
Thomas Wurzer

[User17671]

thanks for this fast response. yes - it's very helpful