find high voltage power supply

nominal output voltage
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nominal output power
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low noise:standard in ripple and noise
very low noise:upscale ripple and noise parameters
ultra low noise:best ripple and noise quality
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more filter criteria

supply voltage
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Ripple and noise are indictors, how much the output voltage is influenced by noise and overlayed sinus waves of AC. The lower ripple and noise the higher the precision of the high voltage power supply.
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low cost:

  • inexpensive for basic applications
  • In case of multichannel systems only one HV-source for up to 24 channels

standard:

  • resonably priced systems
  • multichannel systems have a single HV-source per channel
  • Voltage- and current control available
  • Good stability and low ripple and noise

high precision system:

  • high end systems
  • Multichannel systems have a single HV-source per channel
  • Voltage- and current control available
  • Very good stability and ultra low ripple and noise
  • In many cases two measure ranges available

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Available interfaces
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Case and connector standard
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multichannel options

number of HV output channels
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common ground (C-GND):
All channels and the processing unit are galvanically connected. Within a crate all C-GND modules are galvanically connected.

common floating ground (CF-GND):
All channels and the processing unit are galvanically connected. The module GND is isolated from the GND of the crate. Within a crate all modules with CF-GND are galvanically isolated. A protection circuit prevents differences in the potentials between the module GND and the crate GND of greater than 60V

floating ground (F-GND):
All channels are galvanically isolated from each other and from the module GND. By default a protection circuit prevents differences in the potentials between the channels and the module GND of greater than 25V. As an option this isolation can be designed to enable potential differences from 200V up to 2,000V.

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Product Explorer

Explore iseg product series.

HPS(LPS)

Modern resonance mode and circuit technologies, which have been used for this high voltage power supply, allow to reach highest efficiencies. Excellent control capabilities are realized at the same time as well as little ripple and noise. This enables these HV power supplies for use in a broad range of applications, e.g. magnetrons, laser, X-ray tube PS, ion implantation, ion pumps, capacitor charging, e-beam systems, electrostatics, etc. Through customer specified modifications (small output ripple, reduced stored energy, mechanical dimensions) these HV PS can be matched perfectly to existing requirements.
  • 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

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

APS

the APS series offers high voltage power supplies in a small packaging for PCB mounting and soldering. The output voltage can be controlled by providing an external control voltage. Our patented resonance converter technology and the metal box shielding guarantee lowest EMI.
  • 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

The BPS series offers high voltage power supplies in a small case for PCB mounting and soldering. The output voltage can be controlled either by potentiometer or by providing an external control voltage. Our patented resonance converter technology and the metal box shielding guarantee lowest EMI. BPS – HV – Print
  • 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

The CPS series includes HV DC/DC converters in a compact metal housing or in a 3U cassette. The HV output is finished by HV cable or by HV connector in 3U version. Depending on the version the supply and control voltages are connected either via a D-SUB 9 connector or an H15 connector. An internal reference voltage can be used to control the output voltage with help of an external potentiometer. Analog I/O is provided for remote monitoring and control. To protect connected loads hardware limits for voltage and current can be defined.
  • 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

The DPS series includes high voltage power supply modules with output voltages up to 6 kV in a compact and easily mountable housing. The maximum power is 12 W, polarity is switchable. The HV output is finished by HV cable or by SHV connector. The version the supply and control voltages are connected either via a D-SUB 9 connector or H15 connector (3U cassette). An internal reference voltage can be used to control the output voltage with help of an external potentiometer. Analog I/O is provided for remote monitoring and control. To protect connected loads hardware limits for voltage and current can be defined. Our patented resonance converter technology and the metal box shielding guarantee lowest EMI.
  • 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

CHQ

The CHQ are one or two channel high voltage power supplies in a CAMAC chassis. The unit is 2 slots wide, and supports manual operation via the front panel as well as operation via CAMAC interface. The use of the interface allows for a larger function set than the manual control.
The high voltage supplies features high precision output voltage and very low ripple, even under full load. Separate hardware switches allow to put voltage and current limits in 10%-steps. The EXINHIBIT input protects sensitive devices. Additionally, a maximum output current per channel can be specified via the interface. The high voltage source is protected against overload and short circuit. The output polarity can be switched over.

  • 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

The EHQ´s are one channel high voltage supplies in a 3U Eurocard Chassis, 8TE wide. The units offers manual
control via the front panel and operation via USB and RS232 interface (optional: CAN Bus interface). The
interface control supports more functionality then the manual control.
The high voltage supplies features high precision output voltage and very low ripple, even under full load.
Separate hardware switches allow to put voltage and current limits in 10%-steps. The INHIBIT input protects
sensitive devices. Additionally, a maximum output current can be specified via the interface. The high voltage
source is protected against overload and short circuit. The output polarity can be switched over. The HV-GND is
connected to the chassis and the powering GND.

  • 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

The LOW COST NHQ is a single- or dual-channel high voltage supply in a NIM chassis, one slot wide. The unit offers manual control and remote operation via different interfaces. The high voltage supplies provide a high precision output voltage together with very low ripple an noise, even under full load. Separate hardware switches allow to put voltage and current limits in 10%-steps. An INHIBIT input protects sensitive devices. The high voltage source is protected against overload and short circuit. The output polarity can be switched over. The HV-GND is connected to the chassis and the powering GND.
  • 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

The SHQ is a high voltage desk top family of instruments which offer output voltages up to 6 kV for use in industry and research.
  • 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

The VHQ are two channel high voltage supplies in 6U VME format, 164 mm deep, double width. The unit offers manual control and operation via VME bus. The use of the VME interface supports extended functionality compared to manual control. The high voltage supplies provide a high precision output voltage together with very low ripple an noise, even under full load. Separate hardware switches allow to put voltage and current limits in 10%-steps. An INHIBIT input protects sensitive devices. Additionally, a maximum output current per channel can be specified via the interface. The high voltage source is protected against overload and short circuit. The output polarity can be switched over. The HV-GND is connected to the chassis and the powering GND.
  • 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

EBS

The EBS series modules are Bipolar (4 quadrant) multichannel high voltage power supplies in 6U Eurocard format. Each single channel is sourcing or sinking the nominal current. The maximum possible voltage difference between the channels one the same board is 3000 V, e.g. VO CH0 = +1000 V ⇒ VO CHn ≥ -2000 V; (n= 1 to 7). This voltage is limited by the firmware. The data for set and measure values are given in a format of Floating Point Single Precision values. The modules are equipped with 24 bit ADC and 20 bit DAC circuits. The channels share a Common Floating-GND (C-RTN), which avoids ground loops and reduces the noise level in large systems. The Common Floating-GND is insulated from the Crate-Ground (CCG) up to ±50 V (with a 60 V hardware limit). The HV output at the module is available as a 51 pin REDEL HV connector or as isolated built-in SHV connectors.
  • 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

The EDS modules of this series are Distributor multichannel high voltage power supplies in 6U Eurocard format. The output voltage features a high stability, low ripple and noise and low temperature coefficient. Each single channel has an independent voltage control and voltage and current measurement. The data for set and measure values are given in a format of Floating Point Single Precision values. The modules are equipped with 24 bit ADC and 20 bit DAC circuits. With the model versions EDS xx3xx a very cost-efficient option is provided. The only difference compared to the standard version is the reduced precision of the current measurement. The channels share a Common Floating-GND (C-RTN), which avoids ground loops and reduces the noise level in large systems. The Common Floating-GND is isolated from the Crate-Ground (CCG) up to ± 50 V (with a 60 V hardware limit). The Common Floating-GND (C-RTN) and the Crate-Ground (CCG) can be connected by a jumper (see the attached drawing). The HV output at the module is available as isolated built-in SHV connectors(16 channels), as a 51 pin REDEL HV connector(16/24/32/48 channels) or as a 52 pin Radiall 691803004 HV connector(48 channels).
  • 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

EHS

The EHS modules of this series are multichannel high voltage power supplies in 6U Eurocard format.
Each single channel has an independent voltage and current control. The data for set and measure values is given in a format of Floating Point Single Precision values. The modules are equipped with 24 bit ADC and 20 bit DAC circuits. The HV output at the module is available as a 51 pin REDEL HV connector (up to 6 kV), SHV connectors (up to 8 kV) or KINGS connectors (10 kV).

  • 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

VDS

The VDS series modules are Distributor multichannel high voltage power supplies in 6U VME format in single width (8 Channels) and in double width (24 Channels). The Modules are equipped with a Live insertion/extraction capability. The output voltage features a high stability, low ripple and noise and low temperature coefficient. Each single channel has an independent voltage control and voltage and current measurement. The data for set and measure values is given in a format of Floating Point Single Precision values. The modules are equipped with 24 bit ADC and 20 bit DAC circuits. The channels share a Common Floating-GND (C-RTN), which avoids ground loops and reduces the noise level in large systems. The Common Floating-GND is insulated from the Crate-Ground (CCG) up to ±50 V (with a 60 V hardware limit). The HV output at the module is available as SHV connectors (for the 8 channel version) or as a 51 pin REDEL HV connector (for the 24 channel version).
  • 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

The VHS modules are High Voltage power supplies in 6U VME format, in single width (up to 6 kV) and in double width (up to 10 kV). The units are controlled exclusively via the VME bus system. The output voltage features a high stability, low ripple and noise and low temperature coefficient. Each single channel has an independent voltage and current control. The data for set and measure values is given in a format of Floating Point Single Precision values. The modules are equipped with 24 bit ADC and 20 bit DAC circuits. The channels share a Common-GND, which is connected to the internal Crate-Ground. The HV output at the module is available as BNC connectors (100 V), SHV connectors (500 V up to 8 kV) or KINGS connectors (10 kV).
  • 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)

HPS(LPS) 2nd generation

This high power supply is equipped with state of the art resonant converter and control technologies, which allow for very high power densities.

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

NHS

6 channel NIM module
  • 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

PHQ

There are many reasons to generate the HV and the distribution for the dynodes on the base of the PMT itself. The following arguments show how this technique leads to lower costs and better technical specifications:
  • 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
The control and monitoring of this PMT high voltage power supply works with analog and digital signals. Together with the optional MICP interface a single PMT as well as a system of any size/number of PMTs is under full remote control via interface. Based on the existing and tested modules of our PHQ series we are in a position to offer the design of a high voltage supply for any type of PMT.

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

GPS(KPS)

Modern resonance mode and circuit technologies, which have been used for this high voltage power supply, allow to reach highest efficiencies. Excellent control capabilities are realized at the same time as well as little ripple and noise. This enables these HV power supplies for use in a broad range of applications, e.g. magnetrons, laser, X-ray tube PS, ion implantation, ion pumps, capacitor charging, e-beam systems, electrostatics, etc. Through customer specified modifications (small output ripple, reduced stored energy, mechanical dimensions) these HV PS can be matched perfectly to existing requirements.
  • 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

Crates for HV modules

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High Voltage Systems

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CATALOG 2013

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