Power Supplies
Power Electronics for Power Supplies
Customer service
Product service
Performance Range
The category of power supplies covers a wide range of power converters found in laboratory, medical, and industrial settings. They share the common trait of having a well-regulated voltage or current output specified directly by the user. Beyond this commonality, the electrical characteristics can vary widely based on end application. Medical imaging systems such as computed tomography (CT) scanners require high voltages generated across a transformer using low voltage semiconductors. Welding systems work in a similar manner but with the opposite output: high currents at low voltages. In both cases, high switching frequencies and advanced resonant topologies are common.
As a pure power converter, power supplies can be paired with higher- level system controllers to simulate solar arrays or batteries. The variety of form factors, from handheld units to rackmount or cabinet-sized enclosures requires a range of power modules in high-current, robust packages. The use of high frequencies and magnetics means power supplies also stand to benefit from silicon carbide.
- GENERAL10kVA - 250kVATest equipment, Solar and battery simulators, Modular power supplies
- Scalable building blocks
- Robust construction
- WELDING AND CUTTING5kVA - 500kVAResistance and arc welders, Plasma torches
- High output currents
- Pulsed operation
- INDUCTION HEATING10kVA - 1MVATool and component hardening, Industrial furnaces
- Resonant conversion
- Multiple operating frequency ranges
- MEDICAL1kVA - 100kVAHigh voltage power supplies, X-ray generators, Imaging systems
- High reliability systems
- High frequency switching
- Compact designs
Product Highlights
High Current Half-Bridges
in a Standard Package
From engineering test labs to hospital imaging centers, the SEMITRANS Classic is an industry standard workhorse for power supplies.
Thanks to the integration of the latest IGBT M7, the SEMITRANS 3 now carries a maximum current rating of 800A. This gives designers more freedom in sizing building blocks common to scalable power supply architectures such as solar simulators.
f higher frequency operation is required, the SEMITRANS is also offered with silicon carbide MOSFETs for an equivalent current rating of 500A (RDS(on) = 3.8mΩ).
With decades of experience producing 62mm packages, Semikron Danfoss continues to optimize this platform and ensure high quality production.
Key Features
- Extended current range with Generation 7 IGBTs
- Well-proven SEMITRANS Classic package
- Designed for medium and high power building blocks up to 600kVA
The New Building Block for
High Power Converters
Power converters in the megawatt range are typically constructed from converter blocks in the hundreds of kilowatts and by paralleling of power modules. At these high currents, the need for a low inductance package with balanced switching behavior is critical. The SEMITRANS 20 fulfills this requirement in a new,
industry standard form factor.
Key Features
- New standard package for multiple sourcing
- As low as 10nH stray inductance
- Easy DC-link connection
- Symmetrical structure ensures perfect current sharing in multi-module paralleling
- High reliability package from traction industry
Intelligent Power Modules – IPMs
The Most Powerful IPM in the Market
The SKiiP IPM product line sets a benchmark for high performance and robust inverter designs. Both SKiiP 3 and SKiiP 4 feature high power densities combined with flexible cooling options such as air or water cooling, also with customized heatsinks. Reliable driver technology, integrated current sensors and comprehensive protection functions complete the IPM design.
SKiiP 3 has propagated widely through the industrial drive segment. With its sixpack or half-bridge topologies, it covers a current range from 500A up to 2400A.
The SKiiP 4, available in half-bridge topology, has been optimized for highest power cycling requirements and covers the higher power range up to 3600A.
To ensure highest reliability and service life, the power circuitry is 100% solder-free. Sinter technology as die attach replaces the solder layer, which usually causes the limitation in lifetime. Hence, sintering improves power and thermal cycling capability.
The integrated gate driver in the SKiiP 4 has set new standards in terms of reliability and enhanced functionality through its CAN interface. The digital driver guarantees safe isolation between the primary and secondary side for both switching signals and parameter measurement. The CAN interface allows setting the SKiiP 4 configuration parameter and reading application parameter.
Key Features
- 1200V and 1700V
- Half-bridges and sixpacks
- 500A to 3600A
- Flexible cooling options: air, water or customized cooling options
- Paralleled operation for even higher output power possible
Power Electronic Stack Platforms
Fully Qualified Inverter Assemblies Tailored to Your Specific Needs
Standard Stacks
The Power Electronic Stacks enable our customers to succeed in dynamic markets and meet any global challenge. We deliver Rectifier-, IGBT- and SiC-based stacks for AC voltages from 380V to 690V. Our standard stacks cover an output current range from 70A to 4000A.
- Water Cooled IGBT Stacks
SEMIKUBE
SKiiPRACK - Air Cooled IGBT Stacks
SEMIKUBE
SEMIKUBE SlimLine - Diode/Thyristor Stacks
SEMISTACK CLASSIC B6U/B6C/W3C
Customized stacks
In addition to standard stacks, Semikron Danfoss has vast experience in developing customer-specific solutions. Engineers are available in our stack centers around the globe to offer specific solutions by adapting existing platforms or designing customized converters.
Four Key Factors for your success
- Shortest time to market
- Cost savings in R&D, production and qualification
- Global Semikron Danfoss stack production footprint
- Highly experienced engineering team
Thermal Interface Materials
Stay Cool – Heat Dissipation is Our Job
Semikron Danfoss was the first power module manufacturer on the market to offer power modules with pre-applied thermal interface material (TIM). We now have over two decades of experience and more than 25 million pre-printed modules in the field.
We design print patterns for each module type for the best TIM distribution and thickness when the module is mounted to a heatsink. These patterns are printed on the modules in a clean environment on an automated silkscreen and stencil printing line. Statistical process control (SPC) is used to guarantee consistency. Special packaging is implemented to ensure that the TIM arrives at your production line in pristine condition.
In order to achieve the best thermal performance in all applications, Semikron Danfoss power modules can be supplied with our High Performance Thermal Paste (HPTP).
Alternatively, for ease-of-handling during assembly, most power modules are also available with pre-applied phase change material (PCM). Phase change materials have a solid consistency at room temperature. With the application of heat during first operation, the PCM flows to fill gaps and provide a thermal interface. With HP-PCM, the new Semikron Danfoss-exclusive High Performance Phase Change Material, we combine the benefits of a phase change material with the performance of the best available paste.
Key Features
- Best possible thermal performance
- Simplified logistics and reduced production costs
- Improved assembly robustness
- Increased lifetime and reliability
Portfolio
- HPTP: High Performance Thermal Paste
- HP-PCM: High Performance Phase Change Material
