An Improved dc Power Regulator

  • R. D. Goodwin
Conference paper
Part of the Advances in Cryogenic Engineering book series (ACRE, volume 5)


Temperature control of a spontaneously cooling object by means of regulated electric heating may be achieved with a low-level, dc amplifier of thermocouple or bridge signals [1,2] together with a dc power-regulating amplifier [3–6]. The use of dc heating current avoids ac pickup by low-level circuits in the cryostat. Although dc amplifier circuitry is well known [7–10] the modification of direct-coupled circuits, for purposes other than the original design, may be surprisingly difficult.


Power Regulator Output Impedance Output Circuit Cryogenic Engineer Steady State Versus 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    M.D. Liston et al., Rev. Sci. Instr., Vol. 17, p. 194 (1940).CrossRefGoogle Scholar
  2. 2.
    P.C. Hoell, Rev. Sci, Instr., Vol. 29, p. 1120 (1958).CrossRefGoogle Scholar
  3. 3.
    R.D. Goodwin, 1958 Cryogenic Engineering Conference Proceedings.Google Scholar
  4. 4.
    T.M. Dauphinee and S. B. Woods, Rev. Sci. Instr., Vol. 26, p. 693 (1955).CrossRefGoogle Scholar
  5. 5.
    T.M. Dauphinee et al., Proc. Roy. Soc. A221, p. 267 (1954).Google Scholar
  6. 6.
    R. D. Goodwin and J. R. Purcell, Rev. Sci. Instr., Vol. 28, p. 581 (1957).CrossRefGoogle Scholar
  7. 7.
    M. Artzt, Electronics, Vol. 18, No. 8, p. 112 (1945).Google Scholar
  8. 8.
    S.E. Miller, Electronics, Vol. 14, No. 11, p. 27 (1941).Google Scholar
  9. 9.
    J. W. Rittenhouse, Elec. Eng., Vol. 72, p. 299 (1953).Google Scholar
  10. 10.
    Markus and Zeluff, Handbook Ind. Elect. Control Circuits, McGraw-Hill Book Co., New York (1956).Google Scholar
  11. 11.
    P.G. Sulzer, Proc. Inst. Radio Engrs., Vol. 43, p. 701 (1955).Google Scholar

Copyright information

© Springer Science+Business Media New York 1960

Authors and Affiliations

  • R. D. Goodwin
    • 1
  1. 1.CEL National Bureau of StandardsBoulderUSA

Personalised recommendations