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E13-approved DC/DC converter for charging li-ion batteries, specially designed for optimum performance and safety.

DC/DC converters without derating offer full power at high temperatures. Find out more about the advantages and applications of this innovative technology.

Ideal for railway applications. The ultra-wide input range from 16 to 160 VDC and the electrically isolated, bipolar output voltage of +/-15V characterize the push-pull converter 364W2-15015-SDB1.

Two years ago, we successfully developed our first DC/DC battery charging converter from 13.8V to 57V with galvanic isolation, 450W power and with E-approval for one of our customers. The DC/DC converter 729-57-SD was specially developed for use with a 13.8V alternator. Newly our customer uses truck alternators with 27.6V and for enabling a D+ signal.

Whether it's construction machinery in Alaska, cable cars in the Swiss Alps or wind turbines in India, all applications are exposed to different environmental influences. In order to guarantee the quality of our Demke DC/DC converters under various kinds of environmental impacts, we have to test them under extreme conditions and let them age prematurely. Our laboratory tool have more than proven themselves in the development of DC/DC converters. We are able to design and manufacture extremely robust, climate-proof and individual devices for various applications.

With the new 142 and 162 series of non-isolated DC/DC converters, Demke once again highlights its ability to compete against low-cost competitors with extremely stable products specified with sufficient reserves. Against the trend of more power and derating or fewer reserves and performance, we are confidently breaking new ground in electromobility with our decentralised and highly reliable DC/DC converters.

The DC-Transformer 145-12-SD belongs to the non-isolated DC/DC step-down converters of the 100 series. Due to the 1:6.25 wide input range with 16 to 100 VDC input voltage, it is perfectly suitable as a 12V power supply in battery electric systems with supply voltages of 24V, 48V and 80V. Thanks to its size of 77x52x19mm and weight of 166g, it is ideal for space-critical applications.

With the new galvanically isolated DC/DC step-up and step-down converters, we provide a specific power density of 1W/g. Constant current controlled (CC) - and constant voltage controlled (CV) as well as adaptable for various output voltages (currently 13.8V, 24V, 28V, 48V), the DC/DC converters of the 755 series can easily be used as DC/DC battery charging converters.

We think it is more important than ever that young people find their sporting balance outdoors in nature. That's why we support the association , which promotes freestyle sports in the Davos Klosters region in Switzerland.

No other Demke DC-Transformer (non-isolated step-down DC/DC converter) as the 145-series is built in several variants, has a higher power density or is more climate-proofed. As a part of our ongoing product management, we have got even more performance from the 52x77x19 mm DC/DC converter.

This performance upgrade includes a power increase of 20W with a simultaneous noise reduction. Demke DC-transformer have always been optimised for maximum efficiency with minimum interference emission - we continue to pursue this goal consistently.

In the context of a master thesis at the Robotic Systems Lab (RSL) at ETH Zurich, a customer-specific DC/DC converter (Demke DC Transformer) was developed and tested for use in a novel energy storage system. Due to the high performance and strict weight requirements in dynamic walking robots, power density becomes a key parameter.

Since our company is constantly growing, we have decided to expand our office space. We have enlarged the laboratory space and created a modern lounge area for our engineers and customers. This area is used by our employees to let creativity and know-how flow together. By incorporating the needs of our customers, the first developments of future DC-Transformers are created here, tested and realized in the laboratory right next door.