NBU-1012 discharge circuit is designed for simplification of solid-state laser systems development. The module forms quasi-rectangular pulses on a flashlamp (using energy stored in an external capacitor bank) and provides simmer current during the interval between pulses. By default, NBU-1012 includes capabilities both for serial and external triggering.
The flashlamp operating frequency and pulse duration is to be varied by +5 V TTL signal from an external control device to the respective pin.
The module includes IGBT, its driver, protective circuits, simmer and trigger circuits, discharge resistors and controls. It also contains a fan for active cooling.
Let us emphasize, NBU-1012 is not a stand-alone solution. For proper operation it requires capacitor charging power supply and capacitor bank, an external control device to form the pulses, external +24 V DC power supply, as well as some minor parts (see also the picture below).
Simplified as well as more complicated modifications are available on request.
Input:
Capacitor bank connection
Output:
Max. current
1000 A for pulse width < 1 ms
500 A for pulse width > 1 ms
Flashlamp pulse width
up to 100 ms (on request)
Simmer parameters:
Open circuit voltage
about 1500 V
Current
300-800 mA (500 mA by default)
Triggering parameters:
Voltage
10 kV / ~160 mJ negative to L- (serial flashlamp triggering)
350 V / ~20 mJ negative to EXT connector (parallel flashlamp triggering)
Restrike rate
a few Hz (automatically adjusted)
Environment:
Operation temperature
0 … +40 °C
Storage temperature
-20 … +60 °C
Humidity
0 ... 90%, non-condensing
Other:
Size (LxWxH)
225x207x62 mm
On request the next options are available:
- High power / current / voltage IGBT with extended parameters
- Digital RS-232 / RS-485 interface
- Different cables
- Different simmer and/or triggering parameters
Modifications
NBU-1012 discharge circuit with
capability of both serial and external flashlamp triggering
Example
NBU-1012 discharge circuit with
capability of both serial and external flashlamp triggering
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