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A new resonant DC-DC converter: Pe17 circuit

A

Atal

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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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Voltage of the triangle wave oscillator, output voltage of the error amplifier and resultant PWM signal.

0004.gif
 
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D.A.(Tony)Stewart said:
other than a few spelling errors, nice performance & presentation. Expired patent why?
Click to expand...
The US patent has not expired. It is valid until 2038 (subject to maintenance fees).
Please see patent status at the USPTO website:

Patent Center

PatentCenter UI
patentcenter.uspto.gov patentcenter.uspto.gov
 
Last edited:
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too many simulation errors

ERROR: Node M1:M1:42 is floating and connected to current source G:M1:M1:DS:OUT
ERROR: Node M2:M1:42 is floating and connected to current source G:M2:M1:DS:OUT
ERROR: Node M3:M1:23 is floating and connected to current source G:M3:M1:GS:OUT
 
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D.A.(Tony)Stewart said:
too many simulation errors

ERROR: Node M1:M1:42 is floating and connected to current source G:M1:M1:DS:OUT
ERROR: Node M2:M1:42 is floating and connected to current source G:M2:M1:DS:OUT
ERROR: Node M3:M1:23 is floating and connected to current source G:M3:M1:GS:OUT
Click to expand...
In settings, try the Alternate solver.
 
Last edited:
Upvote 0 Downvote
Atal said:
I hereby present my newly invented resonant DC-DC converter circuit, named 'Pe17 circuit'.

View attachment 178969

View attachment 178973

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.
Click to expand...
It would be useful to zip the libraries of parts not found in std library
and consider how to shrink the size of the schema so it is viewable without zoom.

The FETs need to provide a massive kick. Hope the force is endured.

1703790220114.png



I wonder what the EIRP is in the FM band. ;)
 

Attachments

  • 1703790155131.png
    1703790155131.png
    472.3 KB · Views: 21
Last edited:
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D.A.(Tony)Stewart said:
It would be useful to zip the libraries of parts not found in std library
and consider how to shrink the size of the schema so it is viewable without zoom.

The FETs need to provide a massive kick. Hope the force is endured.

View attachment 187367


I wonder what the EIRP is in the FM band. ;)
Click to expand...
The preview simulation isn't suitable for determining an unsoft-started inrush primary current.
Increase loseless snubber capacitance across the SiCFETs to reduce turn-off losses and EMI.
 
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Replace the original standard.dio file in the cmp folder with the one attached below.
 

Attachments

  • standard.dio.zip
    26.5 KB · Views: 13
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Atal said:
Replace the original standard.dio file in the cmp folder with the one attached below.
Click to expand...
Missing zener diodes for some reason
BSZ0920NS
BZX384B10
BZX384B12
BZX384B3V9
BZX384B68
BZX384B75
BZX384B9V1
lots of duplicate errors , I guess, from new version seeing same with Zener toleranced values

I see they were transferred to Vishay from Rohm or other and changed BZX84 to BZX384, so I'll dupe and mod in *.dio then edit sch to find each..
Now BAS516 et al missing
 
Last edited:
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D.A.(Tony)Stewart said:
After Library imports, sorting and removing duplicates...

Preview works 500W out.

but I broke something on preview

No Gate Osc.
U4:vinput: Missing value, assumed 0V @ DC
??
Click to expand...
The zener diode D28 must be 3.9 V, not 9 V.
PWM comparator and error ampifier cannot stand voltages higher than 5 V.
 
Last edited:
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I guess it is possible to use includes to prevent library omissions. I've only used LTspice this month.



Secondary and no load error x10.. Very nice Performance
1704054074633.png





Maybe it's faster to use something like Microcap-12 x64

Your GIF animation skills are amazing. What tools?
 

Attachments

  • 1704052597109.png
    1704052597109.png
    169.2 KB · Views: 22
Last edited:
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D.A.(Tony)Stewart said:
I guess it is possible to use includes to prevent library omissions. I've only used LTspice this month.



Secondary and no load error x10.. Very nice Performance
View attachment 187434




Maybe it's faster to use something like Microcap-12 x64

Your GIF animation skills are amazing. What tools?
Click to expand...
Noticed from the detailed simulation waveform during no-load operation - feedback loop was unstable.
To fix it, set R42=4k, R40=100k, R60=1.5k, C11=6.8n, C50=1n and C68=39n.

Hypercam 2 and Virtualdub.
 
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