Spellman’s ST Series of 12kW high voltage power
supplies are available in positive or negative polarities
in 19 different models with outputs ranging from 1kV to
150kV. A full featured front panel allows easy local control,
while an extensive analog interface provides comprehensive
remote capability. The standard Ethernet and RS-232
digital interfaces simplify integrating the ST into your system
The ST’s robust IGBT inverter is inherently fault tolerant
and is ideal for demanding applications like semiconductor
processing and vacuum deposition. Many operational features
can be configured by the user to suit their particular
requirements. Power >100kW’s can be provided by configuring
additional chassis in parallel.
Ion Beam Implantation
Electron Beam Welding
High Power RF Transmitters
X Ray Systems
HARDWARE BASED OPTIONS
BFP Blank Front Panel
HS High Stability
LL(X) High Voltage Cable Length
400VAC 360-528Vac Input
SOFTWARE CONFIGURABLE FEATURES
Adjustable Overload Trip
Arc Trip Count
Arc Quench Time
Arc Re-Ramp Time
Constant Power Control
Adjustable Power Trip
Slow Start Ramp Times
Standard: 180-264Vac, 50/60Hz, three phase, 90% efficiency,
0.85 power factor
Optional: 360-528Vac 50/60Hz, three phase (400Vac)
Standard: 180-264Vac, three phase; 50 amps, maximum
Optional: 360-528Vac, three phase; 25 amps, maximum
19 models from 1kV to 150kV. Each model is available
with positive or negative outputs. 1kV to 10kV units are
Local Output Controls:
Voltage and current are continuously adjustable over entire
range via ten-turn potentiometers with lockable counting dials.
Load: 0.05% of full voltage +500mV for full load change.
Line: 0.05%of full voltage +500mV over specified
Load: 0.05% of full current ±100μA for any voltage change.
Line: 0.05% of full current over specified input range.
0.3% p-p +1Vrms. Lower ripple available via special order
0.02%hr. after 1 hour warm-up.
100ppm/°C. Higher stability (50ppm/°C)
available on special order via the HS option
Operating: 0°C to 40°C
Storage: -40°C to 85°C
10% to 90% RH, non-condensing.
Forced air; inlet through side panels, outlet at rear panel
Digital voltage and current meters, accurate to within 1%
System Status Display:
“Dead Front” type indicators provide status of up to 12
system operations including voltage and current regulation,
fault conditions and circuit control.
Ethernet and RS-232 digital interface implemented with
12 bits of resolution. A VB GUI is provided.