Magnet Power Supplies
OCEM provides high quality power electronics systems for facilities involved in studying the nature of particles and for medical treatment centers. Our activity in research and development of systems for particle physics applications comprises a big part of our core business.
The power supplies for coils and magnets aim to deliver highly stabilized currents for the most critical applications, in warm and cryogenic environments, with the following characteristics:
- Currents up to 50.000 Amperes
- Stability and resolution up to 5ppm
- Wide range of topologies using IGBTs, MOSFETs, SCRs, GTOs, IGCTs
- Wide range of control methods: Resonant and double resonant, PWM, PSM, active filters, linear
- Air or water cooling
- Redundancy and modularity, in order to increase the fault tolerance and the reliability of the system
- Remote control
- High immunity against EMI
- Easy diagnostics and easy maintenance due to planar architectures
- More than 3500 custom power converters have already been delivered for scientific applications to top-rated performing laboratories around the world.
Over the years, we have dedicated resources to medical applications for the most advanced hadron therapy centers worldwide. This is where OCEM has designed and manufactured hundreds of power supplies for magnets such as steerers, dipoles, quadrupoles, sextupoles, septum and scanning magnets.
The installation and technical product support teams perform full customer service for those facilities built to operate at least 30 years which require with the need for long term availability and reliability.
Our list of references makes us one of the unique companies with power supplies continuously in operation for more than 35 years!
Products
- All
- Advanced Industry
- Biomedical
- High Voltage Power Supplies
- Magnet Power Supplies
- Particle Physics
- Plasma Physics
- Superconductivity
- Turn-key Systems & Others
Particle – CERN LHC Quadrupole & Dipole Diode Stacks
CERN LHC Quadrupole & Dipole Diode Stacks Main features: N. 1650 diode stacks: Protection to quench of D-pole and Q-pole magnets of the Large Hadron Collider (LHC) In case of quench, magnets will be protected by turning on by-pass diodes The operating current of 11,8kA will then decay exponentially in the diodes Part of the [...]
Particle – CERN ATLAS Liquid Argon Calorimeter PS
CERN ATLAS Liquid Argon Calorimeter PS KEY FEATURES 1. Main characteristics N. power supplies: 66 Maximum current rating: 16 A Nominal voltage rating: 280 V Voltage accuracy: ± 2 % Voltage ripple: ± 0.5 V Power factor: ≥ 0.95 Technology: ZCS Double Resonant Regulation
12kV/ 8,3A DC – High Voltage DC Power Converter
12kV/ 8,3A DC – High Voltage DC Power Converter This type of power supply has a thyristor primary side regulation. It is a topology which is suited for high voltage supply and there is no practical power limit to this solution. Output stability, including ripple can be further improved on request. The solution can be proposed [...]
Particle – CERN LHC Dipoles PS
CERN LHC Dipoles PS KEY FEATURES 1. Main characteristics N.9 power supplies Maximum current rating 13 000 A Nominal voltage rating ± 190 V Current control range 80 – 100 % f.s. Current resolution 18 bit = 3.81ppm Current ripple < ± 10 ppm Current reproducibility ± 10 ppm Technology 12p Thyristor secondary side regulated
Particle – CERN LHC “warm magnets”
CERN LHC ``warm magnets`` PS KEY FEATURES 1. Main characteristics Nr.12 power supplies Maximum current rating 800 to 1 000 A Nominal voltage rating 750 - 950 V Current control range 80 – 100 % f.s. Current resolution 18 bit = 3.81ppm Current ripple < ± 10 ppm Current reproducibility ± 10 ppm Technology 12p [...]
Booster Dipole Power Supply
Booster Dipole Power Supply Booster Dipole Power Supply for the Diamond Synchrotron and similar applications KEY FEATURES 1. Main characteristics Output Voltage: + 2098 V Output Current: 975 A Current Control Range: 10 - 975 A Accuracy: + 50 ppm (+ 48.8mA) Current Resolution: 18 bit = 3.81ppm (f.s.) Current Ripple: < + 10 ppm [...]
Booster Quadrupole Power Supply
Booster Quadrupole Power Supply Booster Quadrupole Power Supply for the Diamond Synchrotron and similar applications. This power supply, with an efficiency >95%, has an high performance modular topology implemented by IGBTs and it is suitable for almost any high current or voltage stability applications. The solution is available for a wide range of power and [...]
SR PS 1500A/530V
Storage Ring Dipole Power Supply 1500 A / 530 V This power supply, with an efficiency >95%, has an high performance modular topology implemented by IGBTs and it is suitable for almost any high current or voltage stability applications. The solution is available for a wide range of power and are specially designed for high [...]
Diamond Storage Ring and Linac
Diamond Storage Ring and LINAC Quadrupole PS KEY FEATURES 1. Main characteristics 240 power supplies required Maximum current rating 200 A Nominal voltage rating 28 V Current control range 20-200 A Current resolution 18 bit = 3.81ppm (f.s.) Current accuracy ± 50 ppm (± 10mA) Current ripple < ± 10 ppm (± 2mA) Current reproducibility [...]
Diamond Booster Quadrupole
Diamond Booster Quadrupole PS For the booster power converters reproducibility refers to the instantaneous current at the same measurement point in each cycle. These power converters must meet the above reproducibility specification. In addition they must meet the specified reproducibility 5 seconds after being turned on after being off for 9 minutes during a 1 [...]
TED
TED Plasma - Gyrotron HV PS KEY FEATURES 1. Main characteristics N.8 power supplies Maximum current rating 20 A Nominal voltage rating 1000 V Current resolution 2 % Current accuracy 2 % Current distortion < 5 % Current reproducibility 2 % Waveform sinusoidal range 5Hz – 10 Hz Load inductance 1H Technology 2 IGBT bridges Max [...]
Diamond Storage Ring Dipole
Diamond Particle - Diamond Storage Ring Dipole PS 11 kV power distribution system and will require a step-down transformer, which is part of the contract. The step-down transformer must be oil cooled and housed in an outdoor transformer pen. The other power converters will be fed at 400 V. For the storage ring dipole magnet [...]
Diamond Booster Dipole
Diamond Booster Dipole PS For the booster power converters reproducibility refers to the instantaneous current at the same measurement point in each cycle. These power converters must meet the above reproducibility specification. In addition they must meet the specified reproducibility 5 seconds after being turned on after being off for 9 minutes during a 1 [...]
NGPS – High-Stability Digital Power Supply Series – up to 10 kW
NGPS – New Generation Power Supply The New Generation Power Supply (NGPS) is a set of power converters for high-tech applications such as particle physics and medical accelerator magnets. Combining the technical expertise of OCEM Power and our partner CAENels, the NGPS utilizes a 0-FLUCS technology DCCT to achieve high efficiency, low noise, and long-term stability [...]