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BC550

No global feedback power Jfet Circlotron

Profile picture for user CircloTronAudio
Submitted by CircloTronAudio on Thu, 04/09/2020 - 13:53

Maybe my next amplifier

Circlotron.audio.ZERO.png

Tags

  • Circlotron
  • CSPP
  • cross shunt
  • pushpull
  • cross shunt pushpull
  • floating
  • bridge
  • floating bridge
  • amplifier
  • amplificateur
  • Bipolar
  • Jfet
  • Power Jfet
  • Ltspice
  • BC550
  • BC560
  • UJ3N065080K3S
  • UnitedSiC
  • Zero feedback
  • No global feedback
  • feedback
  • zero
  • Read more about No global feedback power Jfet Circlotron
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Bipolar LTP input stage with only one CCS

Profile picture for user CircloTronAudio
Submitted by CircloTronAudio on Fri, 05/10/2019 - 18:35

THD 1K 28V 4ohm (100w) 0.0027%

THD 1K 4V 8ohm (1w) 0.0001%

Need to change VAS CCS for thermal compensation.

20190510_cfa_circlotron_bipo_bipo.png

Ltspice file

Tags

  • Circlotron
  • CSPP
  • cross shunt
  • pushpull
  • floating
  • bridge
  • amplifier
  • amplificateur
  • Kaneda
  • Bipolar
  • Mosfet
  • LTP
  • EXICON
  • Lateral
  • ECW20N20
  • BC550
  • 2SA1381
  • 2SC3503
  • Read more about Bipolar LTP input stage with only one CCS
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More thermal stability with Jfet CCS

Profile picture for user CircloTronAudio
Submitted by CircloTronAudio on Tue, 05/07/2019 - 09:48

THD 1K 28V 4ohm (100w)  0.002729%
THD 1K 4V 8ohm (1w) 0.000105%

450mA @20°C
300mA @40°C
150mA @ 70°C
20190506_cfa_circlotron_bipo_mosfet.png

Ltspice file

Tags

  • Circlotron
  • CSPP
  • cross shunt
  • pushpull
  • floating
  • bridge
  • amplifier
  • amplificateur
  • Kaneda
  • Bipolar
  • Mosfet
  • EXICON
  • Lateral
  • Jfet
  • ECW20N20
  • BC550
  • IRF9610
  • J112
  • Read more about More thermal stability with Jfet CCS
  • Add new comment
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