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Home Flashlamp driving IGBT Discharge Circuit NBU-1012 Discharge Circuit

NBU-1012 Discharge Circuit

NBU-1012 is a general-purpose discharge circuit. It forms on the flashlamp quasi-rectangular pulses with the characteristics as below:

  • Flashlamp voltage – up to 1000 V
  • Flashlamp current – up to 1000 A
  • Pulse width – from 50 µsec to 100 msec

Description

NBU-1012 discharge circuit is designed for simplification of solid-state laser systems development. Module forms flashlamp pulses of quasi-rectangular shape, using the energy stored in external capacitors bank. Module includes built-in flashlamp ignition circuit, simmer supply module, IGBT and its driver, protective circuitry, triggering, bleeding discharge resistors and controls.

Please note that NBU-1012 isn’t a stand-alone solution. For proper operations it requires capacitor charging power supply (CCPS) and capacitor bank as well as some minor parts and controls (see also the picture below).

Technical Specifications

INPUT
Low Voltage +24 VDC
High Voltage Capacitor Bank Connection
OUTPUT
Max Voltage 1000 V
Max Current 1000 A for pulsewidth <1 msec
500 A for pulsewidth >1 msec
Flashlamp Pulse Duration Up to 100 msec (on request)
SIMMER PARAMETERS
Voltage Up to 300 V
Open Circuit Voltage Approx. 1500 V
Simmer Current 300-800 mA (500 mA by default)
Triggering parameters
Voltage 10kV/~160mJ negative to L- (serial flashlamp triggering)
350V/~20mJ negative to EXT connector (parallel flashlamp triggering)
Pulsewidth ~ 1.0 µsec
Restrike Rate a few Hz (automatically adjusted)
Environment
Operational Temperature 0…+40oC
Storage Temperature -20…+60oC
Humidity 90%, non-condensing
PHYSICAL
Exterior Dimensions (LxWxH) 225x207x62 mm
Weight 2.0 kG

Options

On request the next options are available:

  • High power / current / voltage IGBT with extended parameters;
  • Digital RS-232/RS-485 interface;
  • Different cables;
  • Different simmering and/or triggering parameters.

How to Order

Modifications by flashlamp triggering type
Model Description
NBU-1012 NBU-1012 discharge circuit with capability of both serial and external flashlamp triggering

Downloads

NBU-1012 discharge circuit - User manual
nbu-1012-manual-en.pdf (3 MB)