Public info about the author: ELEKPAUL

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  Dual supply 8 watt power amplifier with operational amplifier and a darlington couple as final transitors, TIP121 and TIP127. the SPICE model of operational amplifier is UniversalOpamp2, for simulating more aspects of opamp behavior.

  • Project Type: Free
  • Complexity: Simple
  • Components number: 11-20
  • SPICE software: LTspice
  • Software version: IV
  • Full software version nedeed : No
  • Screenshots simulation images:
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  1.5Watt audio amplifier with 3dB points at 50hz and 500khz, implemented with only three BJTs with a complementary couple as simple final stage.

  • Project Type: Free
  • Complexity: Simple
  • Components number: 11-20
  • SPICE software: LTspice
  • Software version: IV
  • Full software version nedeed : No
  • Screenshots simulation images:
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  SPICE simulation of an ultrasound emitter implemented with a single integrated 4011 of NAND gates. Useful for keeping away mosquitoes and rodents.

  • Project Type: Free
  • Complexity: Simple
  • Components number: <10
  • SPICE software: LTspice
  • Software version: IV
  • Full software version nedeed : No
  • Screenshots simulation images:
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  SPICE simulation with LTspice of an Astable multivibrator with CD4011.

  • Project Type: Free
  • Complexity: Very simple
  • Components number: <10
  • SPICE software: LTspice
  • Software version: IV
  • Full software version nedeed : No
  • Screenshots simulation images: