uniPS series
Laser Power Supply & Control Unit
The uniPS power supply combines uniLDD laser diode drivers with a wide range of complementary electronic modules, including AC–DC power supplies, the laser’s main control/communication board, a digital delay generator, TEC controllers, and other Ekspla-designed hardware.
Features
- Current range from 10 A to 1200 A
- Compliance voltage range from 1 V to 600 V
- Current stability of < 0.1% pk to pk
- Current ripple of < 0.1% pk to pk
- Output power up to 6 kW
- Protections:
- current transient (overload) protection;
- open circuit shut-down;
- over temperature shut-down;
- power voltage brownout (voltage dip) shut-down;
- interlock shut-down
- Can be controlled via analog and digital (CAN, RS232) interfaces
- Optional integrated AC-DC power supplies, laser’s main control/communication board, digital delay generators, TEC controllers, and other Ekspla-designed hardware
- Control unit options (integrated control/communication board +8 independent output channel digital delay generator board, tailor-made laser system control software). LabVIEW drivers available upon request
- Customer-tailored front and back panel connector layout as well as unit’s outer dimensions
Applications
Optimal for powering and controlling diode-pumped solid-state laser systems employed in industrial, medical, scientific, and defense fields. The most common applications include:
- Inertial confinement fusion
- Laser diode burn-in systems
- Parallel laser processing
- Directed energy
Description
The uniPS series is a 19″ rack-mount power supply with optional control-unit configurations, which serves as a platform that integrates and extends the capabilities of Ekspla’s open-frame uniLDD laser diode drivers. The uniPS power supply combines uniLDD laser diode drivers with a wide range of complementary electronic modules, including AC–DC power supplies, the laser’s main control/communication board, a digital delay generator, TEC controllers, and other Ekspla-designed hardware.
When equipped with the control-unit options, the uniPS includes features such as an integrated laser main control/communication board (Lazserv OEM) and an eight-channel digital delay generator (SY4000 OEM), both operated via the Ekspla Control software. This software manages all control, monitoring, and communication with the laser system modules, eliminating the need for customers to develop their own PC software. LabVIEW drivers are available upon request, enabling straightforward integration into laboratory automation and data-acquisition environments. The user interface and functionality can also be customized by Ekspla to meet specific customer requirements.
The uniPS platform is modular, allowing hardware modules to be added or removed and software to be expanded or upgraded as needed, providing flexibility to meet individual system power and operational requirements.
Example of a typical uniPS system.
Specifications ¹⁾
| Model | uniPS CW mode | uniPS QCW mode |
|---|---|---|
| Output specifications | ||
| Operation mode | CW 2) | QCW 3) |
| Compliance voltage range, min-max 4) | 1 – 120 V | 1 – 600 V |
| Current range, min-max | 10 – 300 A | 10 – 1200 A |
| Average power, max | 6 kW | 6 kW |
| Power conversion efficiency | 90 – 98 % | 90 – 98 % |
| Current pulse amplitude stability | < 0.1 % pk to pk 5) | < 0.1 % pk to pk 5) |
| Current ripple | < 0.1 % pk to pk 6) | < 0.1 % pk to pk 6) |
| Current drift | < 0.2 % 7) | < 0.2 % 7) |
| Duty cycle | – | ≤ 20 % |
| Repetition rate, max | – | ≤ 5 kHz |
| Current rise time, typical | – | 5 – 100 μs 8) |
| Current pulse duration, typical | – | up to 100 ms 9) |
| RMS current, max | – | 300 A |
| Amount of functioning internal TEC control channels | as many as needed 10) | as many as needed 10) |
| TEC control current, min-max per channel | 1 – 25 A standard, more – upon request | 1 – 25 A standard, more – upon request |
| TEC control voltage, min-max per channel | 1 – 36 V standard, more – upon request | 1 – 36 V standard, more – upon request |
| TEC control power, max per channel | 350 W standard, more – upon request | 350 W standard, more – upon request |
| Input specifications | ||
| DC power supply requirements (power stage), min typical | UPS in min (V) = ULDD out max + 5 PPS in min (W) = ILDD out max * ULDD out max * duty cyclemax / 100 % * 1.2 | UPS in min (V) = ULDD out max + 5 PPS in min (W) = ILDD out max * ULDD out max * duty cyclemax / 100 % * 1.2 |
| AC mains requirements (power stage), typical | 200 – 240 VAC, single phase, 50/60 Hz standard, other – upon request | 200 – 240 VAC, single phase, 50/60 Hz standard, other – upon request |
| Control interfaces | analog, CAN & RS232 by default. USB, LAN & WLAN upon request | analog, CAN & RS232 by default. USB, LAN & WLAN upon request |
| Software | Ekspla’s control software 11) | Ekspla’s control software 11) |
| Protections | current transient (overload) protection; open circuit shut-down; over temperature shut-down; power voltage brownout (voltage dip) shut-down; interlock shut-down | current transient (overload) protection; open circuit shut-down; over temperature shut-down; power voltage brownout (voltage dip) shut-down; interlock shut-down |
| Physical characteristics | ||
| Dimensions (L × W × H) 15) | 19” × U3 × 435 mm standard, other size – upon request | 19” × U3 × 435 mm standard, other size – upon request |
| Operating requirements | ||
| Cooling method | forced-air standard, conductive/water – upon request | forced-air standard, conductive/water – upon request |
| Operating ambient temperature | ≤ 40 °C | ≤ 40 °C |
| Options | ||
| PWR | integrated AC-DC power supply option | integrated AC-DC power supply option |
| CU1 | control unit, first option. Integrated Ekspla’s laser control/communication board Lazserv OEM for additional USB, LAN, WLAN communication options, standard software | control unit, first option. Integrated Ekspla’s laser control/communication board Lazserv OEM for additional USB, LAN, WLAN communication options, standard software |
| CU2 | control unit, second option. CU1 + integrated 8 independent output channel Ekspla’s digital delay generator board SY4000 OEM | control unit, second option. CU1 + integrated 8 independent output channel Ekspla’s digital delay generator board SY4000 OEM |
| T# | number of independent TEC control channels | number of independent TEC control channels |
| LSF | customer-tailored laser system control software (default Ekspla Control software altered functionality & UI design wise) | customer-tailored laser system control software (default Ekspla Control software altered functionality & UI design wise) |
| Accessories | ||
| Output power cables | included upon request, custom dia and length | included upon request, custom dia and length |
| Input power cables | included upon request, custom dia and length | included upon request, custom dia and length |
| Control cables | included by default, custom length | included by default, custom length |
| CAN-USB adapter | included upon request | included upon request |
| Model | uniPS CW mode | uniPS QCW mode |
|---|
- Due to continuous improvement, all specifications are subject to change without notice. Parameters marked typical are not specifications. They are indications of typical performance and will vary with each unit we manufacture.
- Continuous-wave.
- Quasi-continuous-wave (also known as pulsed).
- Range between minimum and maximum limits. Not all maximal limits can be reached simultaneously.
- In ×0.5…×1 of max current range.
- DC…100 kHz bandwidth, in ×0.5…×1 of max current range.
- Cold start, 8 h period, after 5 min. warm up.
- Factory software tuned upon customer’s request.
- Factory software & hardware tuned upon customer’s request.
- Amount factory enabled upon customer’s request.
- Ekspla’s control software & protocol description included by default.
Model coding scheme of uniPS
Performance
Typical ripple current of uniLDD-A-CW integrated inside of a uniPS power supply.
12 V and 24 V DC power, 2 V junction + 10 MΩ series R load.
Typical current drift and long term stability of uniLDD-A-CW integrated inside of a uniPS power supply.
From cold start for different currents.
Peak performance example of uniPS power supply.
Iout 1195 A, Uout 473 V, PW 500 us, f 10 Hz, rise 36 µs, fall 14 µs, overshoot 0.7%.
Images & Drawings
Front pannel view of uniPS.
Back pannel view of uniPS.
Default (no control unit options applied).
Example of uniPS power supply with all integrated control unit options (CU2).
uniPS internal view.
Outline drawing of uniPS.
