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Category Archives: AC Power Sources

Power on the Go: Tips on Portable Power Supplies

Written on February 28, 2017 at 11:06 am, by

Although power supplies are most often used in a single location, such as a design lab or a factory test station, there are times when portability is desirable. For example, you may not want to purchase a laboratory power supply with sophisticated computer-control features, such as the Sorensen XBT Series (see right), for every design […]

Calculate voltage drop to prevent system problems

Written on January 20, 2017 at 12:24 pm, by

One of the problems we frequently encounter in the field is that power supply users fail to take into account the voltage drop in the wires connecting a power supply to a device under test (DUT) or other electronic system. When a load draws a high current, the voltage drop across the power leads could […]

Know your power supply jargon: resolution and accuracy

Written on January 10, 2017 at 7:35 am, by

Two terms that often get bandied about when describing automated test systems are resolution and accuracy. To get the best results from your power supplies, it is important to understand the difference between these two specifications and how they affect your system. The New Oxford American Dictionary defines resolution as, “the smallest interval measurable by […]

Control options abound for Programmable Power products

Written on December 15, 2016 at 7:00 am, by

One of the most common applications for AMETEK Programmable Power power sources is some kind of automatic test system. The California Instruments Asterion AC Series, for example, was designed to be used in commercial and military avionics test system, manufacturing and process control, and IEC standards test systems. It includes Ethernet, USB and RS232 standard […]

Know your power supply jargon: watts vs. volt-amperes

Written on December 5, 2016 at 10:56 am, by

To select the right power source for your applications, one of the first things that you must do is to figure out how much output power you need. For a DC supply, this is relatively straightforward. You first determine the highest output voltage you’ll need and then the highest output current that you’ll need. The […]

The 3 BIG questions that you have to ask when buying a power supply

Written on November 7, 2016 at 5:41 am, by

It wouldn’t be bragging to say that we have a lot of experience with power supplies here at AMETEK Programmable Power. Many of our design and sales engineers have been with us for a long time, and we feel that really gives us an edge when it comes to helping you get the best product […]

Five mistakes engineers make when choosing power supplies

Written on October 27, 2016 at 6:38 am, by

The power supply may be one of the least-considered components of an electronic system. After all, how hard can it be to find the right power source for your system? You figure out how much current you need at the voltage your system will operate at, find a model that can supply that voltage and […]

Power Source Multi-Box Configurations Meet a Variety of Needs

Written on October 25, 2016 at 11:17 am, by

Many of AMETEK Programmable Power’s AC power sources are designed to work as both standalone units and in multi-box configurations. The California Instruments iX Series AC/DC power sources, for example, includes independent 5 kVA power modules that can be combined into a number of configurations. You might use a single unit as a high-power, single-phase […]

Introduction to IEC 61000-4-11, Part II – AC source requirements

Written on August 2, 2016 at 7:04 am, by

In Part I, we introduced you to the concept of testing equipment for immunity to voltage dips and short power interruptions in accordance with IEC 61000-4-111. In addition to specifying the test waveforms, the standard also specifies AC source requirements for full compliance testing. Most of these requirements are easily met by the California Instruments […]

Introduction to IEC-61000-4, Part I

Written on July 25, 2016 at 1:14 pm, by

Mains voltage dips and short interruptions can be caused by a wide variety of phenomena and can cause equipment to operate unreliability, and in some cases, can damage the equipment. Faulty loads on an adjacent branch circuit, for example, can cause a circuit breaker to trip, and high-power loads such as welders, motors and electric […]