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Monthly Archives: March 2015

Measure load regulation to ensure that power supplies meet specs

Written on March 31, 2015 at 6:49 am, by

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 load regulation will help ensure that the power supply will deliver the voltage your circuit or system needs. When specifying or […]

Tips to improve DC supply slew rate

Written on March 18, 2015 at 5:24 am, by

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 the faster a supply reaches a programmed voltage or current, the faster a test will run. The voltage slew rate is mostly independent […]

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

Written on March 13, 2015 at 8:10 am, by

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 specifications and have fast transient behavior. They are, however, inefficient and generate a lot of heat. They are also quite heavy. […]

Choose the right equipment for automated EV testing

Written on March 11, 2015 at 7:46 am, by

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 combustion engines and their control modules. For one thing, HEV electric motors spin faster than internal combustion engines. They also must change speed more rapidly than […]