The natural convection type evaporation cooling system for chopper controllers with high-power semiconductor cells is presented. It overcomes the drawbacks of the conventional chopper controller of the forced air cooling system by preventing noise from blowers; obviating the need for blower maintenance and air filter cleaning and replacing; and eliminating dust and soil on insulator surfaces. The system has been applied to chopper controllers for dc electric cars with a complex main circuit constitution and semiconductor cell control mode.

  • Availability:
  • Corporate Authors:

    Hitachi Limited, Publications Department

    Nippon Bldg, #6-2, 2-chome Ohtemachi, Chiyoda-ku
    Tokyo 100,   Japan 
  • Authors:
    • Yamada, Y
    • Itahana, H
    • Okada, S
  • Publication Date: 1980-2

Media Info

  • Features: References;
  • Pagination: p. 25-30
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00324410
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: Feb 18 1981 12:00AM