Patent · US Expired

Overvoltage protection circuit

US5570260A · kind A · utility

13Cited by
3References
13Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 3, 1993
Grant dateOct 29, 1996
Priority date
Expiry dateDec 3, 2013

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH02H7/125
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

An overvoltage protection circuit including a plurality of series connected thyristors having an overvoltage protection function and a plurality of impedance circuits. Each of the impedance circuits is connected in parallel with one of the thyristors, respectively. The impedance circuits include at least a first impedance circuit having a first impedance value and a second impedance circuit having a second impedance value which is different from the first impedance value.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.