1 to 5 W power supplies configured to be mounted on a printed circuit board.
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.
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.
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.
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.
Current Sources
(67 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.
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.
5 W or greater power supply configured to be mounted on a printed circuit board.
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.
Power Supplies with less than 1 W output configured to be mounted on a printed circuit board.
Linear supplies that meet medical requirements for stabilized loads, EMI and ESD specifications.
Switching power supplies that meet medical requirements especially for EMI and EMC for patient and operator safety.
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.
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).
Power Modules
(152 Companies)
A Power Electronic Module provides the physical containment for several power components, usually Power semiconductor devices.
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eeTechBriefs –
15-Minute on-demand multimedia web casts covering the latest product developments.
Texas Instruments (TI) introduces new Integrated Power Solutions for DC/DC conversion. These products - the TPS8267xstep-down regulator and TPS84620 highly integrated point-of-load solution - feature an integrated inductor and passive components aimed at speeding development time and simplifying power design.
The TPS84620 is a highly integrated point-of-load solution with high density and efficiency and 30% better thermal dissipation compared to competitor solutions. The QFN package combines the inductor and passives onto one device and requires only three external components, making design layout extremely simple. Target applications include broadband and communications infrastructure, along with automated test and medical equipment.
The TPS8267x step-down regulator combines all external components on TI's new MicroSiP™ package - easing design for portable electronics. Plus a unique PWM frequency dithering feature reduces noise and improves performance. The TPS8267x is ideal for use in low-power performance applications, such as cell phones, smart phones, portable audio/video, digital TV, WLAN, GPS, Bluetooth® and portable medical devices.
Join Avnet Electronics Marketing's Chris Cooper for a brief 11-minute overview of both device families, which will include product roadmaps, available products, development tools and technical support offered by Avnet.
Save time. Design with ease. Get to market faster. Learn more about National Semiconductor’s SIMPLE SWITCHER® power modules and how they deliver an all-in-one power solution with superior EMI and thermal performance in an innovative package. Be one of the first 100 registrants to watch the seminar and complete the survey to win a free SIMPLE SWITCHER power module t-shirt.
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!
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