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Explore iseg product series.
APS

- high voltages up to 1 kV at up to 1 W output power
- wide range of dc supply voltage
- positive or negative polarity
- internal reference voltage
- stable output voltage
- patented resonant converter technology
- Low ripple and noise
- Modified versions on request
BPS

- High voltages up to 4 kV at up to 4 W output power
- Wide range of DC supply voltage
- Positive or negative polarity
- Internal reference voltage
- Stable output voltage
- Patented resonance coniverter techlnology
- Low rippe and noise
- Very low EMI
- Modified versions on request
CPS

- CPS series in compact box up to 30 kV
- CPS series in 3U cassette up to 20 kV
- Usable for desk top HV PS
- To be integrated in multichannel HV systems
- Positive or negative polarity
- Stable output voltage
- Patented resonance converter technology
- Low ripple and noise
- Very low EMI
- Modified versions on request
DPS

- DPS series in 3U cassette or compact box
- Precise high voltages up to 6 kV at max. 12 W
- Usable for desk top HV PS
- To be integrated in multichannel HV systems
- Polarity fixed or switchable electronically/manually
- Patented resonance converter technology
- Voltage and current limits via potentiometer
- Very low ripple and noise
- Very low EMI
- Modified versions on request
EPS

The EPS series consists of DC/DC converters with 60 W and 150 W output power. The high voltage power supplies are offered in either a compact metal housing or partial in a 3U cassette.
State-of-the-art resonant converter technology results in high efficiency and low EMI. The modules of this series are equipped with a voltage and a current control with excellent parameters.
Control and monitoring is carried out via analog I/O.
Through customer specified modifications (e.g. small output ripple, reduced stored energy, high ARC stress) these HV PS can be matched perfectly to special requirements.
- State-of-the-art resonant coverter technology, low EMI
- Supply voltage 24 VDC
- Compact metal case, 60 W series also in 3U cassette (only up to 15 kV)
- High voltage up to 30 kV
- Positive or negative polarity
- Excellent output voltage and current regulation
- Capacity charger (option CLD) with very low output voltage overshoot
- Model for processes with arcs (option ARC)
- Modified versions on request
GPS(KPS)

- AC mains supplied, modular HV PS in the range of 300 W to 800 W
- High voltages from 1 kV up to 70 kV
- Extraordinary control characteristics for output voltage and current.
- C-charger (KPS and LPS series) with very low output voltage overshoot
- State-of-the-art resonant converter topology, low EMI
- Very high efficiency, up to 85 %
- Wide range mains input with PFC
HPS(LPS)

- AC mains supplied, modular HV PS in the range of 300 W to 800 W
- High voltages from 1 kV up to 70 kV
- Extraordinary control characteristics for output voltage and current.
- C-charger (KPS and LPS series) with very low output voltage overshoot
- State-of-the-art resonant converter topology, low EMI
- Very high efficiency, up to 85 %
- Wide range mains input with PFC
HPS(LPS) 2nd generation

High voltage power supplies of this class work with a self adjusted switching frequency, depending on the systems operating point. The output parameters are controlled via a pulse width modulation (PWM). This control technology guaranties a nearly loss free switching of the power semiconductors.
Through customer specified modifications (small output ripple, reduced stored energy) these HV PS can be matched perfectly to existing requirements.
- AC mains supplied, modular HV PS in the range of 1.5 kW to 10 kW
- High voltages from 1 kV to 20 kV
- Excellent control characteristic for output voltage and current
- C-charger (LPS series) with very low output voltage overshoot
- State-of-the-art resonant converter topology, low EMI
- 1.5 kW / 3 kW units with PFC
- Comprehensive adjustable arc management
- Modular system, can be operated in parallel for increased power
CHQ

- 2-slot wide CAMAC high voltage modules
- HIGH PRECISION and STANDARD versions
- Compact 2-channel version
- LCD display for voltage or current
- Variable rate of change (ramp) of output voltage
- Switchable polarity
- Integrated protection and control circuits
- Output overload and short circuit protected
- SHV connector on rear panel
- Full monitoring and control via CAMACbus
- Modified versions (e.g. other voltages/ currents) on request
EHQ

- High voltage power supplies in 3U EURO standard cassette
- LCD display for voltage or current
- Variable rate of change (ramp) of output voltage
- Switchable polarity
- Integrated protection and control circuits
- Output overload and short circuit protected
- SHV connector on front panel
- Remote control via RS232 / USB
- Modified versions (e.g. other voltages/ currents) on request
NHQ

- High voltage power supplies in 1/12 NIM standard cassette
- HIGH PRECISION, STANDARD and LOW COST versions
- 1-channel and 2-channel versions in same 1/12 NIM dimension
- LCD display for voltage or current
- Variable rate of change (ramp) of output voltage
- Switchable polarity
- Integrated protection and control circuits
- Output overload and short circuit protected
- SHV connector on rear side
- Remote control via RS232 (opt. CAN) or analog voltages
- Modified versions (e.g. other voltages / currents) on request
SHQ

- High precision HV desk top power supply in 1- and 2-channel versions
- Constant, high precise output voltages, very low ripple and noise
- 2-line numeric display for simultaneous in high resolution monitoring of voltage and current
- Current resolution: 1 nA (opt. 100 pA)
- Voltage resolution: 100 mV (opt. 10 mV in up to 4 kV range)
- Switchable polarity
- Full remote monitoring and control via RS232 or CAN interface
- Optional IEEE 488.2 interface or Ethernet interface
- Modified versions and special units for use in automated HV test systems on request
THQ

The inexpensive and robust desk top high voltage power supplies are assembled
out of the proven high voltage modules of the CPS, DPS and EPS series.
The units are available with either 1, 2 or 3 high voltage channels in many variations
and combinations.
The output voltage is controlled via the 10-turn potentiometer, the USB interface or
the analog I/O. Output voltage and current is displayed on a 2 line LCD per channel,
located on the front panel.
1-channel and 2-channel versions with:
- high voltage modules CPS series 500 V up to 10 kV / max. 12 W output power or
- high voltage modules DPS series 500 V up to 6 kV / max. 12 W output power, with switchable polarity, very low ripple and noise and very high stability
1-channel versions with:
- high voltage modules CPS series 15 kV up to 30 kV / max. 12 W output power or
- high voltage modules EPS series 500 V up to 10 kV / max. 60 W output power
1-channel up to 3-channel in 2U-19” versions with:
- high voltage modules CPS, DPS and EPS series up to 30 kV in arbitrary combinations
For more technical data see the description of the according modules.
The HV modules (DC/DC converter) are supplied with AC/DC-converter:
- up to 24 W output power with a wide range AC mains supply (100 to 240 V AC) and
- for more output power with a switchable AC mains supply (110 V AC / 230 V AC ).
- Low cost 1- or 2-channel high voltage desk top power supply
- 2U-19“ HV power supply with up to 3 channels rack mountable
- Equipped with CPS, DPS or EPS HV modules (data see there)
- Output voltages 500 V up to 30 kV
- Output power up to 60 W per channel
- High precision output voltages, lowest ripple and noise for DPS module configurations
- Large variety of configurations possible
- LCD display for voltage and current
- Voltage setting via 10-turn potentiometer or
- USB interface and analog I/O for each channel on D Sub 9
VHQ

- 2-slot wide VME high voltage modules
- HIGH PRECISION and STANDARD versions
- Compact 2-channel version
- LCD display for voltage or current
- Variable rate of change (ramp) of output voltage
- Switchable polarity
- Integrated protection and control circuits
- Output overload and short circuit protected
- SHV connector on front panel
- Full monitoring and control via VMEbus
- Modified versions (e.g. other voltages/ currents) on request
EHS

- Full range of multichannel units from 100 V up to 10 kV (typ. 9 W per channel)
- Low ripple and noise
- Voltage and current control per channel
- Hardware current and voltage limits per module
- Programmable trip parameter
- 24 bit ADC and 16-20 bit DAC
- Protection circuitry, safety loop, optional INHIBIT per channel
EBS

- Modules with full 4-quadrant capabilities, usable as current sink and source
- Output voltages up to ± 3 kV and currents up to 1 mA
- Favorably for electron optical systems and capacitive loads
- Low ripple and noise (< 20 mV)
- Reduced voltage noise level through Common Floating-GND
- Hardware current and voltage limits per module
- Current measurement per channel
- Programmable trip parameter
- 24 bit ADC and 20 bit DAC, sample rate and digital filter adjustable
- Protection circuitry, safety loop
EDS

- Output voltages up to 3 kV
- Low ripple and noise (< 5 mV)
- Hardware current and voltage limits per module
- Voltage control per channel
- Current measurement per channel
Low Cost: reduced precision of the current measurement - Programmable trip parameter
- 24 bit ADC and 20 bit DAC, sample rate and digital filter adjustable
- Protection circuitry, safety loop, optional with fast discharge of connected load capacity
NHS

- 6-channel high voltage power supplies (typ. 9W per channel) in 1/12 NIM standard cassette
- Full front panel control and visualization via a 1.44” TFT-display
- Remote control via USB or CAN (several modules can be chained via CAN to be controlled through a single USB interface)
- Low ripple and noise
- Voltage and current control per channel
- Extensive programmable trip parameter
- 24bit ADC and 20bit DAC, sample rate and digital filter adjustable
- SHV connector on the rear panel
- Protection: safety loop, INHIBIT per channel, hardware current and voltage limit per module
VDS

- Output voltages up to 3 kV
- Low ripple and noise ( < 20 mV)
- Reduced voltage noise level through Common Floating-GND
- Live insertion capability
- Hardware current and voltage limits per module
- Voltage control per channel
- Current measurement per channel
- Programmable trip parameter
- 24 bit ADC and 20 bit DAC, sample rate and digital filter adjustable
- Protection circuitry, safety loop
- Each channel fully remote controllable via VME-interface according to VME/ VME64 standards
VHS

- Full range of multichannel units from 100 V up to 10 kV (typ. 9 W per channel) in VME system
- Low ripple and noise (< 5 mV at 100 V, < 10 mV up to 4 kV, < 30 mV up to 10 kV)
- Hardware current and voltage limits per module
- Voltage and current control per channel
- Programmable trip parameter
- 24 bit ADC and 20 bit DAC, sample rate and digital filter adjustable
- Protection circuitry, safety loop, optional INHIBIT per channel
- Also combinable with low voltages from 3 V to 400 V on request (VMS modules)
PHQ

- No HV cabling and no HV connectors
- No separate HV power supply needed
- Less space requirements
- Power dissipation on the socket reduced by a factor of 10 or more
- Less problems with temperature and thermal balance
- Safe anode current limitation for PMT protection
- Stable dynode voltages at high pulse rates
Interested? Please let us know the PMT type as well as the mechanical and electronic requirements. Your test results will convince you.
Summary of the circuit theory:
The high voltage for the Photo Multiplier Tube (PMT) supply is generated by a patented resonance mode sine-wave inverter. This technique results in a very high efficiency and a very low EMI. Sensitive signal amplifiers close to the inverter are not influenced in terms of thermal and electrical conditions. A filter at the cathode reduces ripple and noise Vp-p to less than 10 mV. A high-valued resistor voltage divider provides the necessary dynodes voltages. For the last 3 to 6 dynodes this divider only generates the reference signal for a special amplifier (stabilizer). The respective dynode voltage corresponds to the reference signal, but the power to stabilize this potential is coming directly from the cascade or the multi tap transformer. With help of this active stabilization the voltage at these dynodes is kept constant even at high pulse load and high pulse rates.
- Compact HV generation on the PMT base
- Low ripple and noise
- Low EMI
- Low power consumption
- Stabilized dynode voltages guarantee high linearity even at high pulse load and pulse rates.
- Control and monitor capabilities
- Control via interface with MICP and crate ECH135 possible
Crates

- crate (bin) with power supply for covering iseg HV modules
- optimal customization by use of different slot numbers
- some types with integrated cooling
- crate controller for contol and monitoring the crate's functions





