A 300kW Programmable Switched Mode Power Supply

High power switched mode power supplies (HPSMPS) with fast output current modulation capability is required for modulation of optical power output of multi-kW CW CO2 laser for various laser material processing applications. HPSMPS employs latest semiconductor devices & technologies for the development. We have developed a microcontroller controlled HPSMPS up to 300 kW. 

 

Specifications:

Output power	Up to 300kW
Output voltage	Up to 3500V
Control	Output current control
Modes of operation (Output current)	(i) Continuous (ii) Pulse-periodic (iii) CNC velocity dependent power ramping (iv) Single-shot with variable ramping times
Continuous Mode
Current	9 - 85 Amps
Pulse-periodic Mode
Min. Current	9 Amps
Max. Current	85 Amps
Duty cycle	10% - 90%
Frequency	50 - 1000 Hz
CNC Velocity Dependent Ramping Mode
Min. Current.	9 Amps
Slope	Continuously variable
Single-shot Mode
Current	9 - 85 Amps
Time at peak power - Tp	1 - 9999 sec
Power rise time (from zero to peak power) - Ton	100 msec - 9999 sec
Power fall time (from peak power to zero) - Toff	100 msec - 9999 sec
Efficiency	95%
Protection	Over current

 

Block diagram of 300kW Programmable SMPS