Title:
【発明の名称】短絡電流制限保護器
Document Type and Number:
Japanese Patent JPH07503358
Kind Code:
A
Abstract:
A current limiting short-circuiting protector is disclosed which utilizes an electronic and thermal feedback principle for achieving precise and rapid release of the protector, which can be readily reset. The principle utilizes a non-linear powerful temperature-dependent resistor in the collector circuit of a field effect transistor which serves as a current valve and through which the total current to be monitored is passed. The circuit replaces a conventional fuse and may also function as a load on/off control means. When a fault occurs in the load, the erroneous current is limited to a much lower value than is the case with a conventional fuse.
Inventors:
Ekelund, Folke
Hanson, Leif
Hanson, Leif
Application Number:
JP51199994A
Publication Date:
April 06, 1995
Filing Date:
November 10, 1993
Export Citation:
Assignee:
Emerson Energy Systems Actibolague
International Classes:
H02H3/087; H02H9/02; H03K17/082; H03K17/18; H03K17/795; H02H3/02; H02H5/04; H03K17/08; (IPC1-7): H02H9/02
Attorney, Agent or Firm:
Akira Asamura (3 outside)