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Ultravolt® FLHV Series
Photo of XS Series Power Supply


The advanced controls, high stability, and reliability of new Ultravolt® FLHV high voltage power supplies elevate the performance of your entire system and distinguish this series from competitive offerings. These regulated, fully controlled and monitored units provide output that can float on a high voltage bias supply up to 5 kV above or below the input ground reference.
Features Typical Applications
  • High input output isolation supports floating electronics on high voltage
  • High output stability (< ±0.5%) from no load to full load
  • Accurate monitoring (±2.0%) of the floating bias supply output voltage and current
  • Excellent unit-to-unit repeatability
  • No pre-loading required; output will not exceed 101% of
    nominal under normal input conditions
  • Reduced input current at no-load (quiescent)/full load (higher efficiency)
  • Standard digital-ready, fully featured interface
  • Programmable output operation over a range on a fixed input voltage
  • Programmable output operation over a range on a fixed input voltage
  • Electrostatic chucks (ESC)
  • Channel electron multipliers (CEM)
  • Photo multiplier tubes (PMT)
  • HV bias (e-beam, i-beam, energy analyzers)
  • Gate supplies
  • Pulse generators
  • Amplifier rails
  • Other floating electronics
Ripple < ±0.05% peak to peak, either + or – to CT
< ±0.05% peak to peak across + to -
Noise Equal to stated ripple across a DC to 20 Mhz BW
Stability < ±0.5% for 8 hours after 30 minute warmup
Temperature Coefficient < ±50 ppm max per °C; optional “-25 ppm” is < ±25 ppm per °C
Environmental2 and Compliance
Operational temperature -45 to +65°C (-49 to +149°F)*; -25PPM option: +10°C to +45°C (50 to 113°F)
Storage/temperature -55 to +105°C (-67 to +221°F)
Humidity 0 to 95%, non-condensing
Compliance ROHS
Controls and monitors3
Voltage control programming +1 to +10 VDC = 10 to 100% ±1% full scale of nominal output voltage.
NOTE: Unit requires a minimum output voltage to operate properly. At Vprogram of 0 V, the output will be at 0 V.
Control reference +10 VDC ±0.05%, < ±5 PPM °C, source 1 mA min
Control enable/disable Disable: TTL 0 or grounded
Enable: TTL 1 or a voltage up to +32 VDC
No connection: defaults to disable
Eout monitor Buffered 0 to +10 VDC = 0 to 100% ±1% full scale accuracy; measures the actual output voltage across the floating + and - HV output terminals
Current limit programming 0 to +10 VDC = 0 to 100% ±2% full scale of nominal output current
Iout monitor Buffered 0 to +10 VDC = to 0 to 100% ±2% full-scale accuracy
Mode indicators The CV/CC mode indicator lines reflect the output regulation status of the module. These open collector lines can sink current from an indicator such as an LED or with a pull up resistor establish a TTL bit for system monitoring.
Additional features Safe off requires the HV to be < 42 V after 2 sec, with no additional external capacitance or resistance.
Electrical input
Voltage 24 VDC ±5%
Current Input current disabled < 250 mA
Input current no-load < 350 mA
Input current full load < 1 A
Protection Input reverse polarity protection is an internal diode across the input.
(Source power to the HVPS should be fused; time delay/slow blow, 2.0 A value)
Electrical output
Full scale 1, 2, 4, and 6 kV, 15 W
Power 0 to 15 W, 100% of rated current down to 0% of output voltage
Voltage control range 10 to 100%
Isolation Input ground to output center tap: ±5 kV indefinitely
Isolation: 150 MΩ, 600 pF, 200 MΩ on 6 kV models
Load regulation ≤ 0.1% across the ± output terminals
Voltage full-scale accuracy < ±1% (“-BP” units across the ± output terminals)
Current full-scale accuracy <±2%
Standard linearity: < ±1% + 10 mV over the output range
No-load operation Voltage will not exceed 101% of nominal under normal input conditions

Accuracy of specifications in unlocked documents cannot be guaranteed. Please contact your AE representative to confirm specifications.