Multiple phase switching circuit and heat sink structure
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 21, 1986
Grant Date -
N/A
app pub date -
Sep 12, 1985
filing date -
Sep 12, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A multiple phase electricity switching apparatus having electrical components arranged and mounted on a heat sink structure which having the same external dimensions as a conventional electromagnetic relay. The switching apparatus controls the amount of electrical energy passing therethrough and into electrical resistance heating elements thereby controlling the temperature of the molten plastic raw materials. The switching apparatus includes a pair of inverse parallel connected SCR's (silicon control rectifier), a photo coupling, and a zero cross switching circuit. The SCRs are separately mounted on and separated by a structure having two parallel members. The electronic circuit components permit the electrical power supplied to the load to be switched more frequently thereby realizing improved temperature regulation.
First Claim
Other Claims data not available