LOAD DUMP SUPPRESSION IN A SWITCH FOR ELECTRICALLY HEATED CATALYST
Original Publication Date: 1996-Aug-01
Included in the Prior Art Database: 2002-Apr-25
In a switch for a catalytic converter heater used in an automobile, it is possible to minimize the energy dissipation of a transient suppressor (Dl) by dissipating a large portion of the load dump energy in one ofthe switching transistors (Ql). This allows use of a smaller, and less expensive, transient sup- pressor Dl.