FLD-4U is a family of flashlamp drivers (syn. laser power supplies) for pulsed flashlamp pumped solid-state lasers such as Nd:YAG, Er:YAG, Alexandrite etc.
FLD-4U drivers are all-in-one solutions and embed all the neccessary subsystems - capacitor bank, capacitor charging power supply, simmer supply and discharge circuit (discharge circuits).
FLD-4U can be equipped with up to two output channels and up to two flashlamps connected in series can be connected to the every output. In that way each FLD-4U is able to drive up to four flashlamps.
Drivers are 19''-rack mounted. Height is 4U, depth is around 400mm.
All the important parameters - output voltage, pulse width and pulse repetition rate and others - can be adjusted via front panel user interface (7'' colour display and touch panel) and RS-232 machine interface.

Input:
230 VAC (110/230 VAC on request)
Output:
Number of driven flashlamps
1 or 2 (outputs aren't independent and can work with identical parameters only)
Output type
pulsed, variable pulse width
partial discharge, quasi-rectangular pulse shape
Max. output voltage
450/700/900 V (other on request)
Max. output power
1.75/2.0/3.5 kW
Pulse width
0.1-20 ms (other on request)
Repetition rate
1-50 Hz (other on request)
Design:
Protections
overvoltage, overheating,
flashlamp breakdown, interlock etc
Cooling
forced air (built-in fans)
Triggering
serial or parallel
Embedded capacitor bank
28000 uF / 450 V, or
10000 uF / 700 V, or
7000 uF / 900 V (others on request)
External capacitor bank
extension slot
Interfaces
- 7'' display, touch panel
- RS-232 (full control)
- 1x synchro input
- 2x synchro outputs
- 1x power input
- 1x or 2x flashlamp outputs
- 1x capacitor bank extension slot
- 1x footswitch/fingerswitch connector
- 1x interlock-door connector
Environment:
Operation temperature
0 … +40 °C
Storage temperature
-20 … +60 °C
Humidity
90%, non-condensing
Other:
Size (WxDxH)
500x380x172 mm
Weight
10-12 kg (in dependence on configuration)
A lot of options is available:
- number of outputs - one of two channel modifications (although channels aren't independent)
- different output voltages (up to 1350 V)
- different output powers (up to 3500 W)
- different parameters adjustment ranges
- serial or parallel triggering
- interfaces - display/touchscreen based user interface is supplied by default
- Pockels cell driver as an option
- modifications with complete discharge could be discussed
Besides drivers can be equipped with external capacitor banks units with the possible capacitances up to:
- 112000 uF / 450 V
- 80000 uF / 700 V
- 28000 uF / 900 V

Since FLD-4U is a very flexible configured product, a typical procedure of ordering looks like described below:
- Download and read the user manual
- Let us know all the essential parameters of the flashlamp and flashlamp driver, namely:
- flashlamp type, datasheet or drawing, filling, arc length, bore, K0
- working regime/regimes - pulse voltage, pulse width, pulse repetition rate
- other requirements - to capacitor bank capacitance, to voltage droop during the pulse, to interfaces, synchronizations and so on
- Get our confirmation and place your order
Some standard configurations:
2 output channels,
maximal output voltage 450 V,
maximal output power 3.5 kW (2 pcs
PCP-17-450V-PD),
embedded capacitor bank 28000 uF,
7'' display/touch panel user interface
2 output channels,
maximal output voltage 700 V,
maximal output power 3.5 kW (2 pcs
PCP-17-700V-PD),
embedded capacitor bank 10000 uF,
7'' display/touch panel user interface
2 output channels,
maximal output voltage 900 V,
maximal output power 3.5 kW (2 pcs
PCP-17-900V-PD),
embedded capacitor bank 7000 uF,
7'' display/touch panel user interface