With extensive know-how and diverse production options, BLOCK is not just a reliable development partner for the design and configuration of medium-frequency inductors for powerful, compact products. We also produce high-frequency components for circuit boards according to your requirements in large quantities in line with our strict quality standards. In particular in these areas of application, BLOCK customers rely on customized solutions everywhere they require the perfect voltage solution. The areas of application are diverse in this regard. Whether it be an open-design resonant converter, an encapsulated medium-frequency transformer, or other custom-made products, such as for e-mobility applications or airfield lighting. High switching frequencies often bring stringent requirements with them and require tailored solutions.
In the case of BLOCK winding goods, calculations and simulations, such as finite element simulations (FEM) enable the examination of their thermal behavior in advance. This provides a decisive advantage in the development of new solutions in the area of large winding goods. The effectiveness of necessary optimizing steps may as a result be examined without new, expensive prototypes. For you as our customers, this means a quicker and more cost-effective implementation of your project.
Heat sink mounting is the best and most common way of cooling semiconductors. With our transformers and reactors for heat sink mounting you can use your existing system to achieve the highest power densities even with winding goods. Especially in the medium power range between 10-50 kW this kind of cooling is very convenient. Tailored to your application and requirements, we optimize the performance of our solution based on experience, simulations and samples. Compact design and direct heat dissipation are the advantages of winding products with heat sink mounting.
Air cooling, on the other hand, is the easiest way to dissipate heat. Even without additional fans, our optimized designs allow high power densities to be achieved.
Especially for large transformers and reactors in the power range up to 500 kW, air cooling is the most economical option. However, if a more compact solution is required, the power density can be significantly increased by another fan. Low weight and simple cooling are the advantages of winding goods with air cooling.
Transformers and reactors for the medium frequency range represent a dynamic field for development. New materials and technologies have enabled innovative steps on a continuous basis over recent years. With a strong team of experts, BLOCK now plans to get involved in its customers’ development process at an earlier stage and thus sustainably reduce the time to market when developing new components. Simulation softwares offer a significant advantage in this process.
High-frequency switching increases the temperature in the winding and core of the applied filter components in the frequency converter. The use of silicon carbide (Sic) and gallium nitride (GaN) alongside new wide-bandgap semiconductor materials (WBG) lead to a reduction of the required energy content with rising frequency. The fi ndings of BLOCK with regard to SiC- and GaN-based applications will make it possible in the future to satisfy the need for chokes for high switching frequencies. BLOCK’s development initiates a significant reduction in size of the inductive filter components, so that in the future compact and robust power electronic systems will be possible in large systems.
