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...
View ArticleChoose 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...
View ArticleAre 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...
View ArticleTips 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...
View ArticleMeasure 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...
View ArticleStay 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...
View ArticleRemote 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...
View ArticleTransient 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...
View ArticleA 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...
View ArticleEven 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...
View ArticleExternal 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...
View ArticleThree-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...
View ArticleFrequently-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...
View ArticleFive 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...
View ArticleAnalog 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....
View ArticleThe 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...
View ArticleChoose 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...
View ArticleControl 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...
View ArticleKnow 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...
View ArticleCalculate 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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