Abstract: A l.5MeV Linear Induction Accelerator (LIA) consists of six modules. Each module provides 250kV voltage with a pulse width of 90ns. The total accelerator voltage is 1.5MV with output beam current of 3kA. A pulsed power system for l.5MeV LIA can be divided into two subsystems, the Blumlein charging and the Blumlein triggering subsystems. The charging subsystem is composed of a H. V. DC supply, a main Marx generator, six Blumlein lines and switches. The purpose of the trigger subsystem is to first trigger the main Marx generator which in turn charges the six Blumlein lines and then triggers the charged Blumlein lines to produce the accelerator voltage across each accelerator module gap coincident with the passing electron beam.