All Solid State Pulsed Power Supply

All solid-state pulsed power supplies (ASSPPS) overcomes the life-time limitation of conventional Thyratron-based pulsed power supplies. ASSPPS employs a combination of IGBT semiconductor switches and magnetic (NiZn ferrite) switches in place of Thyratron.  Magnetic switches do not encounter the problems of high di/dt, high peak current and repetition rate etc, lifetime limiting parameters of Thyratron switches. We have developed an ASSPPS for driving high average power TEA CO₂ lasers.

Specifications:

Max Peak Power	150 MW
Peak output Voltage	35 kV
Peak Current	3-4 kA
Rise time	< 80 nSec
Pulse width (FWHM)	275 nSec
Pulse Energy	15 J
Max Repetition Rate	500 Hz
Efficiency	~75%

 

Voltage waveform across laser

Schematic circuit diagram of ASSPPS