Current Sources
(65 Companies)
A device that delivers or absorbs current. It is the dual of a voltage source. Ideal current source is a circuit element where the current through it is independent of the voltage across it. The internal resistance of an ideal current source is infinite.
Power Modules
(149 Companies)
A Power Electronic Module provides the physical containment for several power components, usually Power semiconductor devices.
General purpose AC to DC power supplies which change an AC input into a DC source capable of supplying 300 to 1500 watts to a load.
Bipolar Power Supply is capable of supplying either positive or negative voltage at an output terminal. Inputs of the two operational amplifiers are electrically connected to prevent simultaneous large positive voltages at their outputs.
A regulated power supply which acts to keep its output current constant in spite of changes in load, line or temperature.
A constant voltage power supply is a unit that supplies electrical power to another unit. It changes AC to DC while maintaining a constant voltage
General purpose AC to DC power supplies which change an AC input into a DC source capable of supplying over 1500 watts to a load.
High Voltage Power Supply is an electrical device that supplies an electrical circuit of 500 volts or more.
Hot Swap Power Supplies are identical and interchangeable and do not interact with the system software. The computer components may be removed or replaced while it is operating. An example of this is the USB.
An AC/DC Isolated Power Supply with PFC > 90W is used to convert the AC power lines to an isolated regulated DC output for powering notebook computers. It operates with a wide-range of AC inputs from 85V to 265V with one output in the 12V to 20V range.
General purpose AC to DC power supplies that change an AC input into a DC source capable of supplying <300 watts to a load.
Usually uses a transformer to convert the voltage from AC to a different, usually lower DC voltage.
A Modular Power Supply provides connectors at the power supply end, allowing unused cables to be detached from the power supply, producing less clutter and interference with airflow. It also makes it possible to supply a wider variety of cables.
General purpose AC to DC power supplies that change an AC input into a one or more DC outputs.
Encapsulate and open-frame power supplies that are mounted on printed circuit boards to save space and allow low profile applications.
Power supplies that provide voltages with high accuracy for specific needs such as test, military, and medical applications
The output voltage and/or frequency have the capability of being adjusted or programmed via computer control or a test program.
Electronic equipment designed to be placed in a rack. It is capable of operating from either an AC or a DC primary power source.
Redundant Power Supplies are commonly used in conjunction with RAID arrays in systems requiring a high degree of fault tolerance. This power supply includes two (or more) units within it, each of which is capable of powering the entire system by itself.
SMPS is an electronic power supply unit that incorporates a switching regulator which rapidly switches a power transistor between saturation (full on) and cutoff (completely off) with a variable duty cycle whose average is the desired output voltage.
Universal input AC to DC power supplies refer to power supplies that can accept an AC main supply voltage across a wide range of input voltages (typically: 85–264V AC) without manual selection.
Power supplies with high voltage outputs from 10 V to 50 kV to power X-Ray equipment.
The battery power supply system includes a plurality of charge lines for connecting the battery charger to the plurality of batteries and a plurality of discharge lines. Battery chargers are generally AC to DC devices that charge specific batteries.
A DIN rail or top-hat rail is a standardized 35 mm wide metal rail with hat-shaped cross section.on which a power supply is mounted.
Emergency and Standby Power Supplies transfer one or more load connections from one power source to another before the primary power line goes down, avoiding disruption in system operation.
A power supply with a protective coating of cured plastic or epoxy, which encloses the unit, seals it and provides weatherproofing.
An enclosed power supply is a unit that is completely surrounded to protect it from the environment.
Laboratory Power Supply is a regulated DC source having less than 10-kV output at up to 500W; output adjustable over a wide range, usually down to zero; regulation on the order of +- 0.01 percent static line and load.
Linear supplies that meet medical requirements for stabilized loads, EMI and ESD specifications.
Power Supplies with an open-frame construction may consist of a circuit board that is mounted on a chassis that does not have a cover or a stand-alone printed circuit board. Often used with OEM power supply manufacturing techniques.
1 to 5 W power supplies configured to be mounted on a printed circuit board.
5 W or greater power supply configured to be mounted on a printed circuit board.
Power Supplies with less than 1 W output configured to be mounted on a printed circuit board.
Small-sized power supplies typically for portable electronic devices.
A Power Factor Correction unit consists of a number of capacitors that are switched by means of contactors. These contactors are controlled by a regulator that measures power factor in an electrical network, by use of a Current Transformer (CT).
COTS ruggedized power supplies are standard AC to DC supplies but designed to meet particular environmental and/or military specifications and requirements. Used primarily in harsh environments, space, or in military systems.
A device which maintains a continuous supply of electric power to connected equipment by supplying power from a separate source. These emergency power systems could be used to provide uninterrupted power to equipment for up to 20 minutes.
Switching power supplies that meet medical requirements especially for EMI and EMC for patient and operator safety.
Recent Articles for AC to DC Power Supplies:
1-kW low-profile supplies suit DPA
The RFE1000 series is a 1-kW single-output ac/dc power supplies featuring a 1.61-in.-high 1U package for stand alone or . . .
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Low-profile 1.5-kW supply suits bulk power
The HPU1K5 1,500 W ac/dc power supply series targets industrial applications that require bulk power within a compact enclosure. . . .
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12-V distributed supply rated to 2,900-W out
The DS2900 is a 12-V front-end distributed power supply that suits high-availability telecommunications applications and server farms and large . . .
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600-W switcher suits industrial apps
The Mean Well HRP-600 series 600-W switching power supplies suit industrial applications and feature up to 89% efficiency and . . .
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Field-programmable power is essential for ASSPs
Years ago, systems designers had it relatively easy with respect to system power supplies. Logic ran on 5-V power; . . .
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eeTechBriefs –
15-Minute on-demand multimedia web casts covering the latest product developments.
Join Mike Brogley of Actel Corporation for an eeTECHbrief overview of Actel’s Mixed-Signal Power Manager (MPM) using the Fusion mixed-signal flash-based FPGA. Mike covers the concepts of power management, MPM features, the interactive MPM graphical user interface used to configure the Fusion device without reprogramming the Fusion mixed-signal FPGA circuitry, and the capabilities of MPM on the Fusion Advanced Development Kit hardware. If you need power management, power-up and power-down sequencing, or power trimming and data logging, learn about the flexible reprogrammable low power FPGA-based MPM solution today.
Over the past decade, standards for up-screening commercial devices to meet higher temperature, military and space-level requirements have increased, making it a risky and potentially costly practice. Although this practice is not condoned by component manufacturers such as Maxim, the reality is that many OEMs shoulder these risks and actively engage in up-screening.
Join Maxim’s John O’Boyle for an on-demand Web Seminar devoted to exploring the risks, costs and design ramifications associated with up-screening and how to mitigate these risks with simple, cost-effective solutions. Discussion topics include:
- Known and hidden up-screening costs
- Risks of up-screening
- Metal migration
- Impact on operating life
- Ruggedized plastic with SnPb finish standard - lead-free optional - 100% burned-in and tri-temp tested (room temp, 125 degrees C, and -55 degrees C)
- Test programs tighter than the data sheet limits
Don’t miss this opportunity to learn how Maxim ruggedized plastic devices can improve system reliability in electrically stressful environments in applications that demand high-temperature performance and enhanced reliability such as mobile military and aerospace systems.
Are you constantly looking for ways to simplify the design process and get new designs optimized and to market faster? If so, National Semiconductor can help. National is introducing 2 new SIMPLE SWITCHER® families complemented by a robust set of design and optimization tools.
Join National Semiconductor’s Courtney Burry for a 12-minute Webcast discussing:
• The New WEBENCH® Power Designer
• LM315x Synchronous SIMPLE SWITCHER® Controller Series
• LM2267x and LM22680 SIMPLE SWITCHER® Regulator Series
• Additional design support and tools
In less than 12 minutes, you'll gain an understanding of how to design flexible power supply solutions without compromising ease-of-use or reliability. Also, Webcast viewers will be eligible to win free evaluation boards. You’ll need to act fast though as quantities are limited!
Analog Devices offers a wide variety of Low Dropout Linear and Switching Regulators that offer high accuracy in small packages and include features like thermal overload protection, safety current limits and shutdown mode to drastically reduce current consumption.
Join Analog Devices' Noman Rangwala for an 22-minute Webcast discussing:
* LDO fundamentals and terminology
* LDO selection: linear or switching regulators?
* Supply quality and integrity
* Internal noise generation
* External noise rejection capability - PSRR
* New portable and fixed power LDOs
In less than 22 minutes, you'll learn how Analog Devices' performance LDOs can power and optimize mixed-signal, RF, Audio, GPS systems and low voltage digital cores, DSP and FPGAs.
FCI understands the need for increased linear current density in the power connector market and, in response, offers a broad range of highly configurable power connector solutions to meet the unique needs of each application. FCI’s power products span a wide variety of power supply and host-to-card interface applications as well as cable assemblies for power distribution.
Join FCI’s John Dodds for a 12-minute Webcast discussing:
- End-to-end power solutions for chassis-based equipment designs
- Power Supply Interface Products
- Power Card Edge
- PwrBlade®
- HCI®
- Host-To-Card Products
- Hard Metric (HM) High Power
- PwrBlade® & HCI®
- Metral® Power
- Power Cable Products
- PwrBlade® Cables
- Pwr TwinBladeTM
- USB Power
- Power D-Sub; µTCA
In less than 12 minutes, power supply and system design engineers can gain insight into how FCI’s innovative and cost-effective stamped-and-formed power contact technology meets the challenges of increased power density while maximizing airflow for a given application.
Application Reference Materials –
Free Literature Search - App Notes, Design Kits, Eval Boards, Reference Designs, and more. Submit a request for Literature.
- Technical information on domestic and international wall plug-in, desktop and open frame power supplies (switchmode, unregulated) battery chargers (Ni-CD, NiMH, LA/GC) and transformers
- UL, CSA, TUV, CE and other international safety agency approvals
- Custom designs, stock, modified and just-in-time delivery at very competitive prices 100% of Globtek products are RoHS compliant
- CEC/EnergyStar Supplies
GlobTek, Inc.201-784-1000
Northvale,NJ 07647
Pduke's quick selection guide: - Details more than 1000 standard models from 1 watt to 150 watt
- Input voltages from 2.4 to 280 VDC Output voltages from 0.75 to 78 VDC
- Bipolar and multiple outputs available
- High I/O isolation
- Provides engineers with the tools required to select high quality Power Mate DC/DC converters
PDuke909-598-5000
Walnut, CA 91789
The XRS power supplies are specially designed for portable X-ray
applications and provide 10W of power at -50kV over the rated
temperature range. Excellent for hand-held systems.
XRS Specification
- 10W
- -10kV to -50kV
- 100uA output current Programmable outputs
- Output monitoring Low ripple
- Excellent load & line regulation
- Rugged and light-weight
Operating temperature -10°C to +50°C
- Storage temperature -40°C to 85°C
Voltage Multipliers Inc.559-651-1402
kspano@voltagemultipliers.com
Covered in our new, 4-color brochure:
- SMD and vertical mount boost converters,
overmolded SMD, and compact SMD parts.
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Modules operating from 2.5V, 3.3V, 5V, or 12V
rails and providing output voltages from less
than 1V to 5V.
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Parts providing output currents ranging from
1A to 150A, and those which convert 48V
buses to 12V rails.
Bel Power Inc.508-870-9775
Westbourough, MA 05181
Altech Compact DIN Rail power supplies are designed and manufactured for the high performance power supply market. Featuring up to 94% efficiency rating, they can provide a 100% of the continuously rated power with a 150% pick power for 3 seconds. With an active PFC function built-in ? they fulfill the requirement of the EN61000-3-2 for harmonic current so it can be used in any equipment that is being exported to Europe. Up to 50% smaller than similar competitor units. Available in 120W, 240W, and 480W.
AltechCorp ®908-806-9400
Flemington, NJ 08822
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