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The Berkeley Nucleonics HVX-Series delivers fully digitally regulated DC high voltage for demanding test, calibration, and production work. A microcontroller paired with an FPGA, a Field Programmable Gate Array, holds voltage and current to tight tolerances in the digital domain. FPGAs are used in high-voltage supplies because they permit quick signal processing and flexible adaptation to varied load requirements. The result settles fast, drifts little, and repeats reliably from one run to the next.
The compact build needs only 2U, which is unusual for power densities of 2 kW and 3 kW. High performance comes without losing speed or control precision. The polarity of the high-voltage output can be electrically reversed, depending on whether a positive or a negative high voltage is needed.
HVX-Series supplies suit many applications. Customers use them for various kinds of HV testing, in semiconductor production and verification, in the manufacture of photovoltaic cells and components, for end-of-line calibration, and in basic research and development. Simple handling is combined with speed and high precision.
2Highlights
- Voltage classes. 0 to 1.5 kV DC, 0 to 5 kV DC, and 0 to 10 kV DC (higher-voltage 20 kV and 30 kV models are listed in the model table).
- Power. 500 W, 2 kW, or 3 kW.
- Currents. From 0.017 to 2 A.
- Fully digital regulation. Microcontroller plus FPGA control of both loops.
- Usable as 19-inch or desktop chassis, with integrated adapter.
- Compact. 2U chassis; approx. 13 kg (1.5-10 kV units) to 17.5 kg (30 kV units).
- Wide-range AC input, single phase.
- Ethernet and RS232 on board.
- SCPI command set.
- Predictive fan control.
- Output polarity reversible, electrically.
- Ramp control (option).
- Arc detection (option).
3Function & Protection
Function. Digitally regulated DC high-voltage power supply.
Security. In addition to an external interlock and analogue control signals, the supply provides over-voltage and over-current protection. These features protect the user, the device, and the load.
- External interlock input.
- Analogue control signals.
- Over-voltage protection.
- Over-current protection.
4AC Input
| Parameter | Specification |
|---|---|
| Input voltage (3 kW version) | 230 V ±10% |
| Input voltage (2 kW version) | 187 V to 253 V |
| Input frequency | 47 Hz to 63 Hz |
| Power factor correction | Active |
| Mains socket | Rear side, IEC 60320 Type C20 |
| Phase | Single phase, wide range |
5Human Machine Interface
- Display. Colored 3.5-inch TFT screen with LED backlight.
- Input. Two soft keys and one turn/press button.
- Navigation. Clear menu structure with sub-menus.
- Access protection. Configurable code protection for sub-menus.
- Monitoring. Error and event monitoring including time tags (actual and shadow).
6DC Output & Polarity
The output supports positive, negative, or reversible polarity. The high-voltage connection is a female HV connector on the rear side.
| Parameter | Specification |
|---|---|
| Output voltage (Unom) | 1.5 kV to 30 kV |
| Output current (Inom) | Up to 2 A |
| Polarity | Positive, negative, or pole-reversible, referenced to earth potential; floating variants available |
| Discharge time (no load) | Typical 60 s, maximum 120 s (type-dependent) |
| HV connector | Female HV connector, rear side |
7Precision & Typical Values
The values below are typical. Specifications for customized or modified devices, and devices with integrated options, may deviate from these values.
Voltage Stabilization
| Parameter | Typical value |
|---|---|
| Setting range | 0.01% to 100% Unom |
| Setting accuracy (manual operation) | 16 bit |
| Reproducibility | ≤0.1% Unom |
| Line regulation (±10% mains voltage change) | <±0.01% Unom |
| Load regulation (10% to 90% load step) | ≤0.05% Unom |
| Response time (0 to 100% load current change) | <1 ms to 0.1% Unom |
| Stability over 8 hours (constant conditions) | ≤0.01% Unom |
| Temperature coefficient | ≤0.01% Unom/K |
| Ripple (peak to peak) | ≤0.01% Unom ±100 mV |
Current Stabilization
| Parameter | Typical value |
|---|---|
| Setting range | 0.01% to 100% Inom |
| Setting accuracy (manual operation) | 16 bit |
| Reproducibility | ≤0.1% Inom |
| Line regulation (±10% mains voltage change) | <±0.01% Inom |
| Load regulation (0 to 100% load step) | ≤0.05% Inom |
| Response time (0 to 100% load current change) | <1 ms to 0.1% Inom |
| Stability over 8 hours (constant conditions) | ≤0.01% Inom |
| Temperature coefficient | ≤0.01% Inom/K |
| Ripple, output <20 kV (peak to peak) | ≤0.01% Inom ±100 mA |
| Ripple, output ≥20 kV (peak to peak) | ≤0.02% Inom ±0.5 mA |
8Interfaces & I/O
Remote control is built in. Ethernet and RS232 are provided on board, the supply accepts a full SCPI command set, and a configurable I/O terminal carries the interlock and additional signals.
| Interface | Specification |
|---|---|
| Ethernet | On board, standard |
| RS232 | On board, standard |
| USB | Service port |
| Command set | SCPI |
| I/O terminal | Interlocking through external wiring; control/monitor signal for HV on/off; monitor signal for ARC detection (option) |
9Enclosure
| Parameter | Specification |
|---|---|
| Mounting | 19-inch and/or desktop, with integrated adapter |
| Height | 2U (89 mm) |
| Width, front (including rack ears) | 483 mm |
| Rear panel width | 443 mm |
| Depth, chassis (from rear panel) | 500 mm |
| Depth, overall (side view) | 534 mm |
| Chassis | Steel, RAL 9005 |
| Weight, 1.5 kV to 10 kV units | Approx. 13 kg |
| Weight, 20 kV and 30 kV units | Approx. 16.5 kg to 17.5 kg |
10Options
| Option | Description |
|---|---|
| Ramp Control | Facilitates controlled upward and downward regulation with an adjustable gradient, from 1 V/s to 10×Unom V/s. Field-retrofittable. |
| ARC Detection | Detects flashovers in the output voltage, reports them, and can switch off the output voltage if desired. Field-retrofittable. |
11Scope of Delivery
- HVX-Series HV power supply.
- Male HV plug with 3 m HV cable.
- Rubber feet for desktop application.
- Mains cord, 1.5 m, with Schuko connector (CEE7) on the grid side and a terminal block for the I/O plug.
12Model Selection
The table below lists the HVX-Series family by power class. Each row gives the model, power, maximum voltage, and maximum current. The model identifier serves as the order reference.
| Model | Power (W) | Max. voltage (V) | Max. current (A) | Weight (kg, approx.) | Polarity options |
|---|---|---|---|---|---|
| 2000 W class | 2000 | ||||
| HVX 1500 - 1400 | 2000 | 1500 | 1.4 | 13 | Positive, negative, or reversible |
| HVX 1500 - 1400 FLO | 2000 | 1500 | 1.4 | 13 | Floating (fixed) |
| HVX 5000 - 400 | 2000 | 5000 | 0.4 | 13 | Positive, negative, or reversible |
| HVX 10000 - 200 | 2000 | 10000 | 0.2 | 13 | Positive, negative, or reversible |
| 3000 W class | 3000 | ||||
| HVX 1500 - 2000 | 3000 | 1500 | 2 | 13 | Positive, negative, or reversible |
| HVX 1500 - 2000 FLO | 3000 | 1500 | 2 | 13 | Floating (fixed) |
| HVX 5000 - 600 | 3000 | 5000 | 0.6 | 13 | Positive, negative, or reversible |
| HVX 10000 - 300 | 3000 | 10000 | 0.3 | 13 | Positive, negative, or reversible |
| 500 W class | 500 | ||||
| HVX 20000 - 25 | 500 | 20,000 | .025 | 16.5 | Positive or negative |
| HVX 30000 - 17 | 500 | 30,000 | 0.017 | 17.5 | Positive or negative |
13Safety & Compliance
The HVX-Series carries the CE mark and the MET safety certification (cMETus). Confirm the current marks and directives for a given configuration against the published datasheet.
14Contact
For a quote, configuration help, or application support, reach the Berkeley Nucleonics team.
Email: info@berkeleynucleonics.com
Phone: 800-234-7858
Address: 2955 Kerner Boulevard, San Rafael, CA 94901, USA
For a quick question, chat with an engineer at berkeleynucleonics.com.
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