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A new resonant DC-DC converter: Pe17 circuit

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I hereby present my newly invented resonant DC-DC converter circuit, named 'Pe17 circuit'.

view1.PNG


view2.PNG


Features:
* Resonant half/full bridge inverter, utilizing ZVS operation.
* Constant frequency switching.
* Wide input/output voltage range operation capability, suitable also for EV battery chargers.
* Higher efficiency and power density.

Brief intro:

For more details, see US patent - US11139734:

Attached:
Presentation providing comparison between the Pe17 circuit and the LLC resonant circuit.
LTSpice simulation files for evaluation.
 

Attachments

  • Comparison of the Pe17 circuit and the LLC resonant circuit for power supply DC-DC conversion.pdf
    3.7 MB · Views: 214
  • simulation.zip
    70.2 KB · Views: 151
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D.A.(Tony)Stewart said:
Still room for the improvement with 6% ripple Vpp
Click to expand...
This ripple can be halved by replacing the 2x 1500 µF output capacitors with 4x 2200 µF ones (cost more money and space).
In detailed simulation, set C6=150n, C11=8.2n, R40=6k, R44=11k, R55=1k, Tdelay of V1 to 2.6 ms, and remove D15 and R42.

vout.PNG


It goes without saying that 3000 µF is an absurdly low amount of reservoir for a 12 V output at this power level, and 6% load transition ripple still complies with ATX PSU specifications.
 
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