Designing an LLC Resonant Half-Bridge Power Converter, SLUP263

Dmil

Hi,

1) Page 11: "Therefore, if RL changes from infinite to zero, the resonant peak gain changes from infinite to UNITY, ..."

Is this a mistake? May be to zero?

2) Page 27: "Any capacitance value can be used as long as combined capacitors meet the following specifications:"

Is this correct?

Its value will be mirrored to the primary side and the value affects the step response.

3) How to design a compensation network? What is the control-to-output transfer function?

0 Yunsheng Qu over 5 years ago

Hi, Dmil

1) Page 11: "Therefore, if RL changes from infinite to zero, the resonant peak gain changes from infinite to UNITY, ..."

It is right comment in the paper, it is talking about peak gain here.

2) Page 27: "Any capacitance value can be used as long as combined capacitors meet the following specifications

It is right comment in the paper, The capacitance value won't be mirrored to primary side, only Vo/Io will be mirrored to primary side.

3) you can refer to below paper of compensation design of LLC

Yunsheng

0 Dmil over 5 years ago in reply to Yunsheng Qu

Hi Yunsheng,

Thank you for the answers.

2) Page 27: "Any capacitance value can be used as long as combined capacitors meet the following specifications

It is right comment in the paper, The capacitance value won't be mirrored to primary side, only Vo/Io will be mirrored to primary side.

Could you explain why the capacitance will not be mirrored to the primary side of the converter?

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