Polyamp AB

Polyamp Power division is specialised in DC-DC converters and power supplies. We design DC/DC converters since 1970-ties, with reputation of very high reliability and electical performance, they are used in systems with high demands.

Polyamp Systems Division are specialised in design of Naval electromagnetic signatures supression for international customers in Navies or shipyards. We also produce a Underwater Electric sensor (UEP) which is mainly used in Naval and in Oil exploration applications.

Polyamp AB is ISO 9001:2008 Certified  >> pdf ISO 9001:2008 Certificate (268 KB)


Power Division


Polyamp Power division specializes in design and production of mainly DC/DC converters and some compatible Power supplies. Our DC/DC converters are used in applications demanding high reliability in rough environments. Thru the years countless applications in sectors like Railway, Energy, Process control, Vehicles, Military, Radio and Telecom etc.

We provide our DC/DC converters to customers worldwide, with an established sales distributor network or directly where we do not have a distributor. Polyamp have three locations; the head office in Sollentuna outside Stockholm, Sweden. We have design and manufacturing of DC/DC converters in Åtvidaberg 230 km south of Stockholm and La Chaux-de-Fonds in Switzerland.

In Sweden we complement our range with high quality brands like Delta Elektronika for Laboratory and power supplies and Powernet for Power supplies, Inverters and special applications power solutions.

System Division


The Systems division of Polyamp specializes in the design, manufacture and supply of Underwater Electromagnetic Signature Management and Control Systems for Worldwide application within the International Naval Industry / International Navy authorities.

The type of systems supplied are Advanced Degaussing systems for surface and submarine naval vessels. Electromagnetic Mine Sweep supply, Underwater Electric Potential (UEP/ELFE) sensors and electomagnetic design and measurment systems.

The SWECADE software can predict and design coil systems, dimension Degaussing systems, control fixed and movable ranges, support signature analyse and document the fleet vessels signature history.

AC/AC static switch and by-pass

Powernet MBP

mbp68200 by-passAn AC/AC UPS system uses mainly power directly from the public grid. The DC-AC Inverter system are fed from the battery and are in stand-by mode. At grid power loss the static switch moves the load smoothly from the public grid to the the Inverters that gives full power within some milli seconds.

Powernet 7.5kVA or 30 kVA static switch

An UPS system using static Switches uses mostly the grid supply in normal operation. The Inverters are switched on and in stand-by mode. When a grid voltage dip or failure occurs the Inverters are emidiately supplying the AC voltage from the battery.  The Static Switch provide a smouth and safe switch-over from Grid to Battery and vice versa.
A system can be remotely monitored and controlled which mode that shall operate. An manual switch over can also be provided used att battery service conditions.

7.5kVA static switch 1.5U 19"-rack unit with manual switch and 3 distribution fuses
30kVA static switch with manual switch, 3U 19"-rack unit



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