3 kW Regulated
DC Power Supplies
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|Models from 0 to
750V through 0 to 1500 V, 3.5” H x 19” W x 20” D, 19.5 lbs.
|Please refer to Technology >
Applications page on our web site for typical applications.
The EV Series are fully
compliant with the Following European Directives:
EN61010-1/ IEC61010-1, Safety
EN61000-6-4, Conducted and Radiated Emissions
EN61000-6-2, Conducted and Radiated Immunity
2011/65/EU, Restriction of the Use of Hazardous Substances (RoHS)
- 750 to 1500V
- 3.5" Panel
- CE Compliant
- RoHS Compliant
The 3000 Watt EV Series breaks new ground in
regulated high voltage DC power supply technology. The outstanding power density
of 3 kW in a 2U package is provided at up to 1500 V without the reliability issues inherent
in connecting multiple low voltage supplies in series to achieve a higher
The EV Series offers the features you’ve come
to expect in a cutting-edge power supply. Some of the unique features are:
- Embedded microprocessor control with
RS232, RS485, and USB communications as standard features (Ethernet
optional); full analog
remote capability is retained.
- A fully floating output isolated to 1500V
allows the user to select the polarity by choosing which side of the output
to connect to Ground.
- Field strappable parallel operation allows
the user to add additional units as required to increase the output power.
Sophisticated circuitry is designed to
withstand the most demanding applications with ease. Whether used in a
laboratory environment, industrial process such as plasma coating or beam
steering, the EV Series design benefits from our 30 plus years of application
engineering experience. The result of our efforts is a full-featured
power supply with conservative design, long life, and uncompromising
Compliance with RoHS and CE international
standards allows the user to integrate the EV Series into products as an
approved component, and, as opposed to using non-approved items which saves
engineering time and costs. Please take a few
minutes and read on, we have only touched the surface of EV Series’ broad range
Input. Single phase over the input
voltage range of 198 VAC to 264 VAC, with active power factor correction.
Floating Output. Either output
terminal may be grounded for operation as a positive or negative supply.
Embedded Microcontroller control.
Front panel digital encoders provide high resolution local adjustment of voltage
and current program. Integral RS-232, RS-485, USB and optional Ethernet communications
provide remote control program and monitor with 12 bit accuracy.
Remote Analog Interface. User
selectable 0-5V or 0-10V analog programming and monitors.
Field Strappable Parallel Operation.
Up to 4 identical supplies may be operated in parallel with user configurable
master and active current sharing.
Zero Space Stacking.
2U rack mount supplies may be stacked with no space required between supplies.
Low Ripple. Ripple is less than 0.1% RMS of rated voltage at full load up to 1 MHz. Total
ripple and noise is less 0.2% p-p of rated voltage up to 20 MHz.
Voltage/Constant Current Operation.
Automatic crossover from constant-voltage to constant-current regulation
provides protection against overloads, arcs and short circuits.
A rear panel switch allows selection of either current mode.
Forced air with high speed frictionless bearing technology fans. This reduces
noise and extends fan life.
Last Setting Memory.
The unit stores power supply parameters at each AC turn-off sequence. Stored
parameters are: Output Voltage Setting, Output Current Setting, OVP level, UVP
level, Address and Baud Rate.
Standard power supplies are warranted for three years; OEM and modified power
supplies are warranted for one year. A formal warranty statement is available.
198-264 VAC continuous, single-phase, 48-63Hz. The RMS input current at rated
power is less than 20 A @ 198 VRMS input.
30 A max. peak inrush current, 198 to 264 VAC.
85% typical at full load.
Power factor: 0.99 typical at full load.
Continuous, stable adjustment, from 0 to rated voltage or current by panel
mounted optical rotary encoder or by external, user selectable, 0 to +5V or 0 to
+10V signals. Voltage accuracy is 0.5% of setting + 0.2% of rated. Current
accuracy is 0.5% of setting + 0.2% of rated. Voltage and Current programming
ranges are selected by switches that are accessible from the rear panel.
Optical rotary encoder resolution: 1V and 1mA with "Fine Adjustment" mode
selected. 10 V and 10 mA with "Coarse Adjustment" mode (default).
Static Line Regulation: Better than
0.01% of the Voltage and Current Ratings for 198-264 VAC line variations, under constant load.
Max. 0.1% of Rating for full load to no load variation.
Better than 0.02% of the rating + 4mA, for short circuit to rated output voltage
variation. The minimum impedance required to meet this specification in short
circuit is 1 ohm.
Typical deviation is 2.5% of rating with recovery to within .5% of rating in
2ms for load transients from 10% to 100% and 100% to 10%.
Ripple and noise (p-p,
up to 20 MHz):
Max. 0.4% of rated voltage.
Ripple (RMS, 10 Hz -
1 MHz): Max.
0.1% of rated voltage. The ripple and noise are measured at the output
connectors of the supply.
Max. 100 ppm per deg C following 30 minute warm up.
Max. 0.05% of rated over 8 hours time interval, following 30 minute warm up.
Voltage Rise Time
Typical 45 ms using any of the HV ON, HV enable, local, the remote serial or the
remote analog control.
Voltage Decay Time
Typical 45 ms time constant for an equivalent resistive load at the output of
15% of the rated full load.
Output is floating and either (DC+) or (DC -) can be connected to chassis ground
for reversible polarity. The sum of the output voltage and the float voltage
should not exceed 1500 VDC.
Up to 4 identical units can be connected in parallel providing active current
sharing with user configurable master - slave configuration.
Analog Voltage Monitor:
User selectable 0 to +5 V or 0 to +10 V, equals 0 to rated, with an accuracy of
.5% of reading + 0.2% of rated.
selectable 0 to +5 V or 0 to +10 V, equals 0 to Rated, with an accuracy of .5%
of reading + 0.2% of rated.
and Monitor Accuracy:
0.025% of full scale for both the voltage and the current channels.
Automatic current regulation protects against all overloads, including arcs and
short circuits. Thermal switches and temperature rise sensing circuits protect
against thermal overload. Fuses, surge-limiting resistors, and low energy
components provide ultimate protection.
Voltage setting accuracy is better than 0.5% of setting + 0.2% of rated.
Current setting accuracy is better than 0.5% of setting + 0.2% of rated.
Voltage reading accuracy is 0.5% of reading + 0.2% of rated. Current
reading accuracy is 0.5% of reading + 0.2% of rated.
Open = off, closed = on.
Front Panel Elements.
Digits / 0.2% ± 1 count accuracy; 1 V resolution.
Rear Panel Elements:
AC power entry IEC inlet connector, AC On indicator, ground stud, HV output
connectors, multifunction DIP switch, Analog Interface Connector, RS-232/RS485
connectors, USB, and optional Ethernet connectors.
Digits / 0.2% ± 1 count accuracy; 1 mA resolution.
Current Mode, Voltage Mode, Fault, Fine Adjustment, Preset, Remote/Local, HV
Rocker switch with integral indicator.
Baud Rate, Address, Remote/Local, Fine Adjust, Preset, HV On, UVP Adjust,
Voltage Adjust, Current Adjust.
Control and Status
Implemented with TTL compatible, 0 to 5.5 V CMOS, positive logic circuitry.
LOW/HIGH indicates Local / Remote Control Mode.
Active in Remote Analog control as HV enable. LOW / HIGH for HV OFF / ON.
Logic can be reversed by selected switch on the rear panel.
V/I MODE Status:
HIGH / LOW indicates that output is in Voltage/ Current Mode.
LOW /HIGH sets the power supply in Local / Remote analog mode.
Active HIGH, indicates a fault condition. Logic can be reversed by selected
switch on the rear panel. The continuously monitored faults are: Input
Undervoltage, Over Temperature, Over Voltage, Over Current, Interlock and
(optional) Arc Fault.
LOW /HIGH indicates that HV output is OFF/ ON.
0 to +40 deg C, full load.
Dimensions (W X H X D):
19" X 3.5" X 20". Refer to the outline drawing.
90% RH (non-condensing).
-20 to +70 deg C.
< 95 % RH (non-condensing).
above 6500 ft and up to 10,000 ft. MAX, de-rate the output current linearly
from 100% to 80% of rated.
Forced air cooling with internal fans.
19.5 lbs (8.9 kg)
IEC 60320-C20 inlet with mating IEC 60320-C19 to NEMA 6-20P power cord.
2 high voltage, HN (UG-496 style) bulkhead connectors. Mating HN cables with 10
feet of RG8U are provided.
Withstand Voltage and Insulation (HI-POT):
Input to Output:
Input to Ground:
2000 VAC RMS,
Output to Ground:
2500 VAC RMS,
Input to SELV:
2000 VAC RMS,
Output to SELV:
2500 VAC RMS,
Interface to EV GND:
1000 VAC RMS.
10 foot RS232 null modem cable, 3 foot RS485 daisy chain cable and 10 foot USB
cable are provided.
180 to 220 VRMS, 48-63
Hz. Output power is linearly derated from 100% to 90% between 200 VAC and
Slow Start Ramp:
Specify standard times of 5, 10, 15, 20, or 30 seconds, ±20%.
Arc Quench: An arc
quench feature provides sensing of each load arc and quickly inhibits the HV
output for approximately 20 ms after each arc.
Arc Count: Internal
circuitry senses the number of arcs caused by external load discharges. If
the rate of consecutive arcs exceeds approximately 2 arcs per second for at
least five arcs, the supply will turn off for approximately 2.5 seconds to
allow clearance of the fault. After this period, the supply will return
automatically to the programmed output voltage value with the voltage rise
time constant indicated. If the load fault still exists, the above cycle
will be repeated
Same as Arc Count with
the exception that the output will be latched off rather than recover
automatically after 2.5 s. The Arc Fault is reset by cycling HV Enable
OFF/ON either in LOCAL or REMOTE control mode or by cycling AC Power OFF/ON.
Virtual RS-232 COM port over Ethernet network. (Requires compatible OS (eg
Windows) for COM drivers). Note: RS-485 feature is removed when Ethernet
option is installed.
Click on the model number below to request a quote and
for complete ordering part number.
Noise MAX (P-P)