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DC Power Supplies

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Linear DC power supplies have a transformer that reduces AC input to a lower voltage and also acts as a safety barrier for the low voltage output from the AC input. The AC output is then converted to low-voltage DC output, which is regulated into the required output voltage. Switch mode DC power supplies, in comparison, use diodes and capacitors to rectify and smooth AC voltage. Read More…

DC Power Supplies DC power supplies operate by receiving an input power and then outputting the required form of DC power. There are a variety of types of DC power supplies such as linear power supplies, switching power supplies, DC/DC converters and high voltage power supplies.
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Leading Manufacturers

New Brunswick, NJ  |  732-249-2656

MEGA manufactures AC/DC ITE and medical (60601-1 4th ed) power supplies in wall plug in, desk top and open frame packages up to 800W. Designed to get the job done at a reasonable price, supplies carry multiple approvals to make it possible to ship one supply globally.

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MEGA Electronics, Inc. $$$

Livermore, CA  |  800-669-8090

At Quail Electronics, we are your power cord specialists. Our power supplies consist of green dot cords, high voltage cords, North American and international cords, specialty cords, plus adapters, plugs and strips.

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Quail Electronics, Inc. $$$

Irvine, CA  |  800-462-7929

The power supplies we manufacture are actually solutions for power control, power distribution or power protection for commercial, industrial, military medical and military applications. Our product includes AC/DC power distribution units, custom power supplies, uninterruptible power supplies and more.

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Marway Power Systems $$$

Lowell, MA  |  877-646-0900

Total Power Int'l provides customers with high quality & competitively priced power conversion products. We provide AC/DC power supplies ranging from 5 -1500 Watts. Available in U-Bracket, Box, Open Frame, L-Bracket, Wallmounts and External Sizes. DC/DC Modules come in 1-700 Watt size and varying inputs from 4.5-300VDC. Medically approved units are available and we do Custom Design.

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Total Power International, Inc. $$$

Bergenfield, NJ  |  201-385-0500

Being the leader in rugged power supply conversion products is where Nova Electric stands. Our power supplies have modular design with replaceable subassemblies. We offer: DC-AC inverters, UPS power systems and frequency converters. We have over 40 years of experience manufacturing AC power sources.

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Nova Electric $$$
placeholder image MEGA Electronics, Inc. Quail Electronics, Inc. Marway Power Systems Total Power International, Inc. Nova Electric

This voltage turns into a high voltage DC, which is converted into a safe, low voltage with high frequency. Another common type of DC power supplies, the DC/DC converter, works by converting a source of direct current from one voltage to another.

Many applications utilize DC power supplies. Two very common uses are in cellular phones and laptop computers. They can also be used in telecommunications equipment, medical equipment, video technology, computer flash memory, and process control systems. All types of DC power supplies have the ability to be PCB mount, wall mount adapters, rack mount, internal or open frame, desktop, or DIN rail.

DC power supplies can accept input voltages such as DC input, AC single phase, or AC three phase, with common outputs of DC power supplies being 3.3V, 5V, 12V, 15V, 24V and 48V. DC power supplies can come with many types of user interfaces and can use different operating temperatures as well.

DC Power Supply Informational Video