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Power electronics

AC/DC converters - DC/DC converters - Buck/boost converters - Bidirectional resonant converters -
Drive controls - Power converters - Inverters

Our modular system gives you the opportunity to put together an optimum system to meet your requirements from a wide range of existing technologies / solutions. We master the control of various semiconductor technologies such as SiC, GaN, IGBT, Si-MOSFET in power classes from a few 100 W up to several 100 kW.

Our modular system includes various topologies for power conversion such as AC/DC converters, boost converters, buck converters, bidirectional resonant converters and power controllers, power converters and inverters as well as drive controllers for a variety of motor technologies.

This modular system enables rapid development and therefore fast implementation of your project – 100% tailored to the application. The possibility of integrating additional functionalities into one module creates decisive market advantages for our customers. Our know-how enables us to realize the most innovative concepts at unbeatable prices.

Power Electronics
Information

DC/DC resonance converter with galvanic isolation

DC/DC Resonant Converters for galvanic isolation use a resonant circuit, typically consisting of inductors and capacitors, to efficiently transfer energy between the input and output. The circuit operates at a resonant frequency at which losses are minimized. The reduction of switching losses and EMI contributes to a higher overall efficiency of the converter. Compared to conventional PWM-based DC/DC converters, the design of a resonant converter is more complex as the resonance conditions must be precisely tuned. Resonant operation allows higher switching frequencies to be achieved, which leads to a reduction in the size and weight of passive components (such as transformers and filters). The resonant technology also ensures that the voltage and current peaks that occur in conventional switching processes are reduced, resulting in less stress on the components.

DC/DC converter, boost converter and buck converter

The DC/DC converter topologies are fundamental components in the conversion of electrical power.

Similarities and differences between step-up/step-down converters

Similarities:

  • Both types of converters use switches, diodes, inductors and capacitors to convert voltage.
  • They work by periodically switching and storing energy in inductors.

Differences:

  • Boost converter: Increases the voltage, suitable for applications where a higher voltage is required than the available input voltage.
  • Buck converter: Reduces the voltage, suitable for applications where a lower voltage is required than the available input voltage.

Combination:

  • Buck and boost converters can be combined with each other, enabling bidirectional operation. The energy can then flow in both directions.

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Application examples