High-voltage power module designs for laboratory equipment
06 May 2016
Luso Electronics announces the availability of bespoke high voltage power solutions for UK and European customers seeking to develop highly miniaturised scientific equipment.
Through its partnership with US based HVM Technology, Luso already distributes standard and customised military grade high-voltage power converters and compact power supplies for night vision applications.
“Miniaturisation of key subsystems and components is vital if successive generations of high-value equipment such as mass spectrometers are to become easier to install, simpler to use and more affordable”, explained Mike Saldana, President at HVM Technology. “HVM Technology’s power system is used by the world’s smallest mass spectrometer. 1st Detect’s MMS1000 measures just 19cm wide and 23cm deep and this ultra-compact, reliable and safe-to-use device raises the prospect of mass spectrometers being installed in nearly every local medical centre in the US to enable instantaneous blood sample analysis.”
“High-voltage electronic design is a specialised field, and achieving significant miniaturisation is an extreme challenge”, said Bryan Reid, UK Sales Manager at Luso Electronics, “HVM Technology has perfected some key processes that enable it to develop miniaturised high-voltage power modules, including vacuum potting with epoxies that provide high surface resistivity.”
The use of rigid, high-resistivity materials allow creepage and clearance distances to be significantly reduced compared to un-encapsulated assemblies, keeping sensitive circuitry and users safe in the process. However as these processes do not allow rework, extra care has to be taken to identify any latent defects prior to its application. Ultra-compact high-voltage design also calls for highly developed cleaning techniques capable of purging even the minutest conductive particles such as soldering residues before encapsulation takes place.
HVM Technology has its own in-house transformer design and manufacturing capability. The transformer is the single most critical component to meet size and performance requirements, and delivers the best results when tailored to meet the exact needs of the target application. The ability to build custom transformers to high quality standards delivers a major contribution towards delivering products that are smaller, better performing, and exactly fit customers’ needs.
While custom miniaturised high-voltage power supplies are a forte, OEMs can also use standard modules from the HVM Technology portfolio. Among the standard ranges available are two ultra-compact DC-DC converter families that give customers the choice of designing their own feedback loop for optimum regulation and transient response, or choosing a fully integrated turnkey module up to an output voltage of 10kV.
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