Demke Electronic's portfolio includes non-isolated DC/DC step-down converters up to 1000W power. Demke DC/DC buck converters are assigned to the 100 series.
Thanks to their universal design and discrete construction, our DC/DC step-down converters with their 1:10 ultra-wide input range stand out from other dc-dc converters and can be used in a variety of applications.
All Demke DC-Transformer have excellent mechanical and electrical characteristics. Our DC/DC converters are extremely robust and long-term stable. With the help of integrated EMC input and output filters, we limit the ripple and noise of current and voltage to a minimum. All DC/DC buck converters comply with common industry standards, some even with residual EMC standard according to EN55022-B.
Obviously Demke DC Transformer of the 100 series normally can be used at ambient temperatures from -40°C to +85°C and are no-load and short-circuit proof over the entire specified temperature range.
The performance record is completed by the high specific power with a very high efficiency.
The polyurethane potting protects the electronic circuit against environmental influences and distributes the generated heat loss during operation homogeneously over the entire DC/DC converter, so that a passive heat sink via the bottom of the housing is sufficient in most cases.
We have listed a selection of galvanically non-isolated DC/DC step-down converters below. If the suitable product is not listed, please have a look at our DC-Master 100 series and configure your DC/DC-converter on your own. You can find a complete product selection here.
Characteristics DC/DC buck converters
Power range from 5W to 600W
Ultra wide input voltage ranges from 6V to 170V
Output voltages from 3.3V to 48V
Wall mounting and PCB mounting
Passive heat dissipation via housing base
Customer-specific adaptations possible
Currently in use
12V DC power supply in forklift trucks
19V DC power supply in mobile computer systems
24V DC power supply in forklift trucks
24V DC power supply in pitch systems (control of blade adjustment) in wind power systems
13.8V, 27V and 50.2V as backup battery charging DC/DC converter
Universal applicable thanks to ultra wide range input of 1:10, such as 16…160V and more!