Temperature-compensated f.e.t. multiplier

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Temperature-compensated f.e.t. multiplier

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© The Institution of Electrical Engineers
Published

A four-quadrant multiplier circuit using two identical f.e.t.s operated in the ohmic region is described. The temperature-dependent factors and the quadratic term in the f.e.t. characteristics are compensated, giving inherent temperature stability to the circuit performance and an accuracy better than 1 %.

Inspec keywords: transistor circuits; analogue computers

Subjects: Analogue circuits

References

    1. 1)
      • B. Shore . Pocket-size analog computer divides and multiplies. Electronics , 66 - 67
    2. 2)
      • W.H. Highleyman . An analog multiplier using two field-effect transistors. IRE Trans. , 311 - 317
    3. 3)
      • J. Laws . Analogue multiplier. Electronics Letters
    4. 4)
      • A. Bilotti . Operation of an m.o.s.-transistor as a variable resistor. Proc. Inst. Elect. Electronics Engrs. , 1093 - 1094
    5. 5)
      • S. Osterfjells . Analog multiplier with field-effect transistors. Proc. Inst. Elect. Electronics Engrs.
    6. 6)
      • R.D. Middlebrook . A simple derivation of field-effect transistor characteristics. Proc. Inst. Elect. Electronics Engrs. , 1146 - 1147
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