Patent · US Expired

A.c. switch triggered at a predetermined half-period

US5471074A · kind A · utility

6Cited by
8References
6Claims
0Family size

Assignee

Inventor

Key dates

Filing dateMar 17, 1993
Grant dateNov 28, 1995
Priority date
Expiry dateMar 17, 2013

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH10D84/136

Abstract

An a.c. switch includes across first and second main terminals a first thyristor disposed in parallel with, but in an opposite direction of, a first diode and in series with a second thyristor disposed in parallel with, but in an opposite direction of, a second diode. The first thyristor has a gate terminal connected to its gate area. The second thyristor and second diode are vertically realized in the same substrate, their conduction areas being closely interlaced, whereby a polarity inversion following a conduction period of the second diode causes the second thyristor to become conductive.

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