All news at a glance
DC-Transformer 757-48-SD - first Demke 800W converter, 24V to 48V as supercapacitor DC/DC charging converter with ShutDown function.
Small, light, high power density, vibration insensitive, 48V-Output DC-Supercap charging - These are the customer requirements that had to be implemented with this Demke DC-Transformer.
Product introduction 755 Serie: step-up and step-down converter from 18...110VDC, output 24V to 29V with 450W
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.
Modern battery-powered electric vehicles often use primary main battery voltages between 350V-650V. As in all vehicles, these must be converted to 12V or to 24V to supply various electrical consumers such as lighting, infotainment, and many more. The robust DC/DC converter 729-24-SD is highly integrated in terms of broadband EMC filter, advanced control technology, state-of-the-art power semiconductors and energy storage elements. The PU potting makes it robust to shock and vibration and can be widely used for applications such as construction machinery or other vehicles.
Especially the highly compact and highly integrated DC/DC converter 142E-13.8-SD (supply voltage 16VDC...70VDC) with 13.8V output voltage and up to 15A short circuit current (200W power) is ideal for mobile battery electric applications. Climate safe, vibration resistance, PU potting, internal reverse polarity protection diodes on the output side, high-performance control loop, wide band EMC filter - compact and combined in one device, ready for tomorrow's challenges.
Our converters also bring the horsepower to the ground in E-Trucks. The DC-Transformer 151DH-13.8-On with 13.8V output voltage and 280 Watt power is installed in the new series of the most powerful FUTURICUM E-Trucks with over 680 HP as a 13.8V battery charging converter and 12V power supply.
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.
This performance upgrade includes a power increase of 35W with a simultaneous noise reduction. Demke DC-Transformers have always been optimized for maximum efficiency with minimum noise emission - we continue to pursue this goal consistently.
The Demke DC-Transformer 729-57-SD was specially developed as a Li-Ion battery charging converter. The primary supply is the generator with the 13.8V supply voltage or the car battery with 12VDC voltage. Due to its usage in vehicles, this galvanically isolated DC-DC converter is automotive EMC certified according to EN50498:2010.
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.
Our DC-Transformer 257LE1-29 is in permanent operation on the road and makes the daily life of many delivery people easier. We are pleased that we can support this new way of delivery with our robust and universally applicable devices and promote the future of e-mobility.
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.
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.
New additional characteristic curves of Demke DC-Transformer, also available for customized dc-dc converters
To make it easier to understand the special characteristics of our DC/DC converters, a characteristic curve plot will be available as take away (PDF) for each article in the future.
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.
Our new E13-certified 450 Watt DC/DC Converter for Automotive and E-Mobility applications is ready for road use and has been installed successfully in the first road legal vehicles. The DC Transformer passed the E13 10R - 05 certification right away, this was a great appreciation for the work of our engineers and motivates for further projects.
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.
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.
In the past we invested a lot of time and energy in the development of our company. Now, thanks to the existing digitization of our in-house processes and our ERP system, we are able to carry out our work here in Switzerland up to 100% in our home-offices if necessary. Our great team spirit is very valuable in this time.