Inductance without using inductor

Discussion in 'General Electronics Chat' started by pranav_shenoy, May 29, 2015.

  1. pranav_shenoy

    Thread Starter New Member

    Feb 17, 2015
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    Is there a circuit which can give inductance without actually using a inductor ?
     
  2. Shabbir_Ahmed

    New Member

    Feb 17, 2015
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    pranav_shenoy likes this.
  3. pranav_shenoy

    Thread Starter New Member

    Feb 17, 2015
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    Thanks man :)
     
  4. ian field

    Distinguished Member

    Oct 27, 2012
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    They're pretty much standard equipment in those graphic-equaliser tone controls with a row of sliders on the front panel.
     
  5. crutschow

    Expert

    Mar 14, 2008
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    Note that they simulate inductance for small signal applications, like filters, but do not simulate the energy storage capability of a real inductor.
     
  6. DickCappels

    Moderator

    Aug 21, 2008
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    They would make terrible flyback circuits if you wanted an output higher than the power supply voltage. :)
     
  7. studiot

    AAC Fanatic!

    Nov 9, 2007
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    As you and Dick have noted if you want an alternative to the energy storage capacity of inductive magnetisem, you could always electrically drive a flywheel, connected to a generator, or heat a kettle, connected to a turbine-generator.
     
  8. ian field

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    Somewhere I read that in one country they sealed up an abandoned salt mine and used surplus energy to fill it with compressed air. When there was no surplus, the compressed air was released into generator turbines.
     
  9. crutschow

    Expert

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    How did we go from simulated inductors to high energy storage? :confused:
    Did someone get on the wrong thread?
     
  10. ian field

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    You pointed out that the gyrator circuit doesn't store energy like a real inductor.

    I think the artificial inductor can be as simple as a single bipolar transistor, a capacitor and a few resistors - I've seen those in one or two guitar pedal schematics.
     
  11. crutschow

    Expert

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    Well I was thinking more along the lines of the mJ of stored energy in a switching regulator inductor, not the MJ of energy needed for energy grid storage. :rolleyes:
     
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