Application fields

1. Very high altitude (15+ km)

Objects and locations: airplanes, unmanned aerial vehicles, meteo-probes, atmospheric and earth-surface monitoring equipment, aerial laboratories, etc. Constructive volumes protected from external factors, however there may be slightly protected volumes as well. Factors: vibrations, impacts with acceleration up to hundreds and thousands of G’s, sometimes short-term moisture, sand, dust, low pressure. Temperature of the converter case from -60 °С to +100…+110 °С. In some cases, from -70 °С to +120…+130 °С. At such heights natural radiation occurs, a careful selection of electronic components is necessary. Requirements for power units: protection from moisture, the design should be vibration and shock-resistant, case mounting should necessarily be multi-point via threaded holes. Very important are low-profile, small size and weight, high efficiency, often required parallel operation. Cooling method – forced air or conductive via heat sink.

3. Low altitude aerial equipment (0-5 km)

Objects and locations: airplanes, helicopters, tethered drones, hot air balloons, aerial laboratories, etc. Constructive volumes often open, slightly protected from externals factors. Factors: vibrations, impacts with acceleration up to hundreds and thousands of G’s, moisture, sand, dust, solar radiation, lowered pressure. Temperature of the converter case from -50 °С to +80…+100 °С, with rapid temperatures changes. Requirements for power units: protection from moisture via polymeric cover, solar radiation resistant, construction should be vibration and shock-resistant, case mounting – should be multi-point via threaded holes, mounting via unit outputs is not allowed. Very important are low-profile, small size and weight, high efficiency. Cooling method – forced air, natural convection or conductive via heat sink.

5. Telecom on land

Objects and locations: ground communications centers and control points, connecting towers, roofs of tall buildings, mountain peaks and passes. Moderately protected from external factors constructive volumes, base of which are hardware cabinets, 19-inch racks, etc. Factors: low-impact shocks and vibration, condensing moisture, dust, sand, possibly solar radiation and salt fog. Decreased pressure in mountain conditions. Temperature of the converter case from -50…-10 °С to +80…+100 °С. Requirements for power units: must be protected from moisture and salt by polymeric layer or via special housing design. Mounting via unit outputs is acceptable. Important parameters are EMC, high efficiency and parallel operation. Compact dimensions and low profile are desired. As a rule, required cooling method – one-sided conductive via unit’s case bottom.

7. Supercomputers

Supercomputers, information displays and screens are characterized by a set of communicating modules to solve the case of delivering power to a complex object. Objects and locations: stationary compounds on surface, in underground control points, in mountains, well protected from external factors. Factors: practically there are no environmental or mechanical impacts. Temperature of the converter case is dependent on liquid cooling operation: from 0 °С to +60…+90 °С. Requirements for power units: highly important are low profile, high efficiency is critical, parallel operation. Also very important is to have one-sided cooling through the case bottom to transfer more than 90-95 % of total dissipated heat.

9. Heat-resistant equipment in high-temperature regions

Objects and locations: stationary on land surface and mobile objects: cars, tracked vehicles, unmanned aerial vehicles. Constructive volumes with low level of protection from external factors might be used. Factors: beside mechanical and climatic, characteristic impact of solar radiation, also of heat and hot soil. Environment with high level of pollution, dust, sand, hydrocarbons, etc. Temperature of the converter case from -10 °С to +100…+130 °С. Requirements for power units: protection from sand and dust via polymeric cover. Must be resistant to long vibration and shock, without significant mechanical oscillations. Important are compact dimensions, desired cooling method – conductive cooling via unit case bottom.

11. Active Phased Array Radar (APAR)

Powering APAR is characterized by a group of communicating units delivering power to a complex object. Objects and locations: land equipment, airplane and helicopter radars, UAV and drones, meteo-probes, outer space satellites etc. Constructive volumes – usually protected from environmental factors of mentioned objects. Factors: in certain objects there is humidity, dirt, dust and solar. Temperature of the converter case from -60 °С to +100…+120 °С. Requirements for power units: small size and weight, low-profile (very important), high efficiency, parallel operation. Critically important is one-sided heat transfer via unit case of more than 90-95 % total generated heat.