Direct Current

Enhance Electronics Co., Ltd. - Manufacturer of switching power supplies for PC and industrial.
http://www.enhance.com.tw/

Power Research Technologies - Industrial Power Supplies and Redundant Power Systems.
http://www.prt.com.tw

Maxim Enterprise Co Ltd - High volume manufacturer of indoor and outdoor AC to DC power adapters. Guang Dong, China.
http://maxim2000.com/

IBEK ELECTRONICS - DC/DC Converters
http://www.ibek.ch/

SMX Power - National distributor of AC/DC Power Supplies, Desktop Computer Power Supplies, Switchers, Adapters, and other power supply equipment and enclosures.
http://www.smxpower.com

Aldonex, Inc. - Manufacturer of DC power supplies and plating equipment.
http://www.aldonex.com/

Viable Power Conversion Technologies Inc. - Power converters and supplies for military, defence and other high reliability applications. Fast turn-around modular designs. Specializing on low and medium quantities.
http://viablepower.com/

Magna-Power Electronics - Designs and manufactures high power, 3.3 to 750 kW power supplies.
http://www.magna-power.com/

On-Tek Electronic Co., Ltd. - Switching power supply, AC-DC open frame mode, AC-DC adaptor and charger, OEM, ODM. From Taiwan.
http://www.ontek.com.tw/

Dyna Hitech Power Systems Ltd. - Designing and manufacturing switching power supplies, DC-DC converters, battery chargers, telecom rectifiers for industrial applications.
http://www.dynahitech.com/

Unipower Corporation - Designer and manufacturer of customized 100 to 3600 watt switching power supplies and systems.
http://www.unipower-corp.com/

Excelsys Technologies Ltd. - Provides flexible AC/DC power solutions from 100 watts to 1000 watts with multiple outputs. On-line configuration and ordering.
http://www.excelsys.com/

Amrel - Manufacturer of high output programmable power supply and up to 100KW input electronic load banks.
http://www.amrel.com/AMRELPowerProducts/index.html

Ault Incorporated - Designs, manufactures, and markets line of external power supplies, battery chargers, and transformers. Online catalog. Offers custom design or modifications. Investor information.
http://www.aultinc.com/

SynQor, Inc - Manufacturer of DC/DC power converters.
http://www.synqor.com

Starvox Electronics - Manufactures switched mode power supply, dc-dc converter, battery chargers. Gujarat,India.
http://www.starvoxpowersupply.com

Buffalo Power Electronics Center - Manufacturers of original Westinghouse rectifier products and industrial rectifier systems for electrochemical and electrometallurgical industries.
http://www.buffalopower.com/

Glary Power Technology Company Limited - Manufactures dc to dc converters,for the telecommunication, data processing and industrial control industry.
http://www.glary.com

RO Associates - Manufacturer of quality DC-DC power supply, DC-DC switches, dc-dc converters for applications in digital logic, power converters, and AC-DC switching power supplies.
http://www.roassoc.com

Intronics - Designer and manufacturer of standard and custom DC/DC converters, function modules, and analog signal processors.
http://www.intronicspower.com/

Recom International Power Gmbh - Offering single, dual, and triple output DC/DC converters.
http://www.recom-international.com

Deltron Inc. - Designs and manufactures linear and switching AC-DC and DC-DC power supplies ranging from 15 watts to 7.5 kW; specializing in redundant, hot-swap rack mount systems. Most are modular in design and can accommodate virtually any power output configuration.
http://www.deltroninc.com

CanTech - Manufacturer of DC power systems for telecommunication and radio communication technologies.
http://www.cantech.cz

Ultrapower Technology, Inc. - Switching power supply including open frame, U channel, box type, box with fan built in type from 40W to 350W output. Standard AC input and DC input are both available.
http://www.ultrapowerweb.com

Power Mate Technology Co., Ltd - Marker and designer of DC-DC converter. Supplying in power mate standard designing series and also customer's special specification mode.
http://www.pduke.com

Acon, Inc - Produces converters with single and multi-voltage outputs.
http://www.aconinc.com/

Zahninc - Manufacturer of dc/dc converters. shows pictures, dimensions, and wiring diagrams of DC motor controls and DC/DC converters. Prices and powers select sub categories.
http://www.zahninc.com

Shunhe Communication Equipment Company - Manufacturer of DC charging voltage-regulating power supply.
http://www.shunhe.com/html/english.html

Motien - 0.25W to 5W dc/dc converters with a wide range input.
http://www.motien.com.tw

Argantix - Programmable DC power supply products for industrial, military and commercial test and measurement applications.
http://www.argantix.com

Darrhar Electric Company - Manufactures DC power supplies and is a stocking distributor of power semiconductors, air and water cooled power assemblies.
http://www.darrahelectric.com/

Integrated Power Designs - Manufacture universal AC/DC power supplies.
http://www.ipdpower.com

Traco Electronic AG - AC/DC power supplies and DC/DC converters. Over 1000 standard models from 1 to 2500 W available ex-stock.
http://www.tracopower.com/

RW Electronics Ltd. - Power supplies. Hitron power supplies, universal input and switch mode power supplies, AC-DC and DC-DC PCB mountable power supplies and converters.
http://www.robertswarr.com

Bear Power Products, Inc. - A manufacturer of mini switch mode power supply modules available in 5-15 watt with output voltages from 3.3 to 24vdc. Phelps, New York.
http://www.bearpwr.com/

Wulf Müller Electronic - Design and manufacture custom power supplies and power amplifiers.
http://www.wme.de/

Genvolt - Designer and manufacturer of standard and custom high voltage power supplies.
http://www.genvolt.co.uk/

Charles E Singleton Company - Distributors and installers of DC power systems, rectifiers, converters and power plants.
http://www.cesingleton.com/

AEI Electech Corporation - Specific OEM and industrial power supply manufactacturing with the use of Sunpower technologies, hot-swapable, fault tolerant, and redundant power systems.
http://www.sunpower-aei.com

Primax Technologies - Manufacturer of industrial rectifiers and battery chargers up to 600VDC-1000A used in switchgear, control and telecom applications.
http://www.primax-e.com

Asner Electronic Co., Ltd. - Manufactures AC-DC power supplies, DC-DC power supplies, electronic ballast, inverters and converters.
http://www.asnerpower.com.tw/

Shanghai Hengfu Industrial Co., Ltd. - Manufacture of switching power supply. From China.
http://www.hengfu.com

Century Electronics - Designer and manufacturer of AC/DC power supplies and DC/DC converters. Custom, semi-custom and standard units for high-reliability, military, aerospace, and industrial applications.
http://www.centuryele.com/

MINMAX Technology - Manufactures DC-DC Converter, DIP, SIP, SMD packages.
http://www.minmax.com.tw/

Peak Electronics Gmbh - Manufacturers DC to DC converters from 0.25 W to 15 W output power. Both English and German available.
http://www.peak-electronics.de/

TRC Electronics, Inc. - Supplies AC/DC power supplies and converters, adapters, and transformers. Technical support provided.
http://www.trcelectronics.com/

Astec - Distributor of custom AC/DC and DC/DC power supplies. The company is a subsidiary of Emerson (EMR:NYSE), based in San Diego, California.
http://www.astec.com/

Detas - Manufactures switch mode power supplies for industrial applications. Also, transient suppressors for inductive loads such as motors, coils and relays.
http://www.detas.com/

Topaz Power - Manufacture and supply a wide range of DC rectifier system for data and telecommunication industry. Other product include DC-DC converters, ringing generators and AC-DC switching power supplies.
http://www.topazpower.com

Global Power Corporation - Manufacturer of AC/DC power supplies up to 300 watts.
http://www.gpcpower.com

Nao Technologies - Assembly of power supply. From Korea.
http://www.nao-tech.com

Autec Power Systems - Manufacturer of switching DC power supplies
http://www.autec.com/

Mastervolt International - Energy solutions in industrial, mobile, marine and renewable energy applications.
http://www.mastervolt.com

Universal Microelectronics Co., LTD. - ISO9001 and ISO14001 approved manufacturer for electronic and telecommunication products.
http://www.umec-web.net

Power Supplies - Manufacturer of external power supplies, AC/DC power supplies, Asian China Taiwan Original Equipment Manufacture and designer.
http://www.cincon.com

D1 International, Inc - Design and manufacture of DC/DC converters. Isolated input/output. Regulated, low ripple, single, dual, and triple output. AC/DC open frame power supplies.
http://www.d1international.com/

OPTYS Corporation - Develops and manufactures programmable DC power supplies.
http://www.optys.com/

Wall Industries, Inc. - Designer and manufacturer of DC/DC converters and AC/DC power supplies.
http://www.wallindustries.com

Epsco Incorporated - Design and manufacture of power conversion equipment.
http://www.epscoinc.com/

HFA Electronics Ltd - AC/DC adaptors, plugpacks and power supply manufacturers.
http://www.transformers-hfa.co.nz/

Puls UK - Offers power supply units, din rail, 19 inch, dc to dc power converters
http://www.puls.co.uk

VPT Inc. - Offers DC-DC converters, EMI filters, and custom engineering services to the military, aerospace, space, and industrial systems industries.
http://www.vpt-inc.com/

OTE International Inc. - Manufacturer of power supplies.
http://oteinternational.com

BCSystems, Inc. - Manufactures power supplies for military, commercial and telecommunications applications. Online specifications, product photographs and customer configuration.
http://www.bcpowersys.com/

Univ Power Corporation - Manufacturer of power supply, adapter, switching power supply.
http://www.univpower.com.tw/

Coil Technology Corporation - Manufacturer of DC to DC converters( switching power) for computing, internet networking, telecom, data communication, remote-applications, car power, cable TV, wireless& power isolations, pluse transformer, filter.
http://www.ctc-dc-dc.com/