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Channel: DC Power-Supplies – AMETEK Programmable Power Blog
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Freewheeling Diodes Provide Power Supply Protection

Say that we have a circuit with a power supply and an inductive load on it. From the instant that electrical power is supplied to the circuit, the inductive load will accumulate stored energy. If an...

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Choose the right equipment for automated EV testing

Testing the electric motors and the electronic control modules found in today’s electric vehicles (EVs) and hybrid electric vehicles (HEVs) is in many ways more challenging than testing internal...

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Are linear supplies or switching supplies the best choice for your test system?

The first choice you must make when purchasing a DC power supply for a test system is whether to select a linear supply or switching supply. Linear power supplies offer low ripple and noise...

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Tips to improve DC supply slew rate

The slew rate of a DC power supply is the rate at which the output voltage and output current changes. This characteristic is important in many applications, especially automatic test applications, as...

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Measure load regulation to ensure that power supplies meet specs

One of the most important specifications for a DC power supply is load regulation. Load regulation is a measure of how well a supply maintains its output voltage when the output current changes. Good...

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Stay on the curve to accurately test solar array inverters

In order to perform an accurate test of solar array inverters, the output of a solar array simulator must faithfully follow the I-V curve of a solar array or solar panel. That is to say that it must...

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Remote sensing compensates for power lead loss

When a load draws a high current, the voltage drop across the power leads could be high enough to cause a device under test (DUT) to fail or cause a system to malfunction. The solution to this problem...

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Transient response is important when loads change rapidly

Transient response is a measure of how well a DC supply, such as the Sorensen SG Series, copes with changes in current demand or how well the supply follows load impedance changes. This is an important...

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A Checklist for Purchasing a Laboratory Power Supply

Selecting a DC power supply for the lab is not as easy as you might think. If you thumb through a catalog and choose the first one that you think meets your needs, you could end up with a power supply...

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Even Linear Loads Need Careful Consideration

The nature of the load that will be connected to the AC power source is very important in determining the correct type of supply. Generally loads can be classified as linear or non-linear. Linear loads...

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External Capacitor Prevents Problems with High Ripple Current Loads

In many applications, a DC power supply has to drive a load with a large ripple component. Examples of this type of load are DC-AC inverters, DC-DC converters, and DC motor loads. Linear supplies can...

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Three-Phase AC Supplies High-Power Sources

Providing AC power to your AMETEK Programmable Power source can be confusing. The reason for this is that there are several different configurations for three-phase power. What you first need to do is...

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Frequently-Asked Questions about the Sorensen SG Series Power Supplies

The Sorensen SG Series is one of the most popular high power programmable DC power supplies on the market. The SG Series is designed for exceptional load transient response and low noise output. With a...

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Five mistakes engineers make when choosing and using power supplies

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...

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Analog control still a good choice for many applications

While these days, computer control is usually the preferred method of controlling a power supply, many AMETEK Programmable Power products, such as the Sorensen SGA Series still offer analog control....

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

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...

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Choose the right features for your next adjustable DC power supply

The Sorensen XEL benchtop DC power supplies are user-friendly, supply up to 180W, and have advanced digital features. Although oscilloscopes and spectrum analyzers have flashy features, and get most of...

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Control options abound for Programmable Power products

Ethernet, USB and RS232 standard control interfaces are standard equipment on the Asterion Series AC/DC power sources, and there is an optional IEEE-488 (GPIB) control interface available. One of the...

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Know your power supply jargon: resolution and accuracy

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...

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Calculate voltage drop to prevent system problems

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...

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