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IGBT Forum Discussions

User17671
Level 1
5 questions asked First question asked First reply posted
Level 1
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!
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1 Solution
Thomas_Patrick_
Employee
First solution authored
Employee
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

View solution in original post

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2 Replies
Thomas_Patrick_
Employee
First solution authored
Employee
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
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User17671
Level 1
5 questions asked First question asked First reply posted
Level 1
thanks for this fast response. yes - it's very helpful
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