AC DC Power Supply: Four Important Questions to Ask Before Buying


With power becoming both a high priority and more complex, asking the right question before buying can make sure you get the right ac dc power supply. Powering a DUT (device under test) used to be one of the last things you considered when integrating an automated test station. That’s no longer the case, given the need for reducing power consumption and rack space. Today’s electronic products have greater need for power quality, power integrity, or power fidelity (choose your own term). Thus, they often need ac dc power supplies to deliver higher than rated current for short periods of time. Given these new requirements, here are four questions you should ask when looking for an ac dc power supply. You’ll certainly have more, depending on your application.

Top 4 Questions to Ask When Looking for AC DC Power Supply Units

1   Can you connect the ac dc power supply in parallel to provide higher output power or configure them to provide multi-phase or split-phase outputs?
You can often combine ac dc power supply units in parallel to provide higher output power. When connecting two or more power supplies, you may need to synchronize their outputs, even if those outputs are out of phase with each other. Many of today’s ac dc power supplies include a clock-and-lock feature that lets them provide multipurpose outputs.

 2    What voltages and currents can you expect from modern ac dc power supply units?
Voltage ranges have increased, particularly in military/avionics applications. Instead of the traditional 150 and 300 VAC ranges, the latest generation of ac dc powersupply units now produces voltage ranges of 200 and 400 VAC.

 3    What you need for testing your equipment at multiple ranges?
Many ac dc power supply units manufactured these days can now deliver full power in all the areas even where the voltage supply is low. Thus, you need a graph to highlight. The graph will show how output current rating fluctuates depending on fluctuation of voltage and current in different ac dc power supply units.

 4    What features should you look for?
Many of today’s ac dc power supply sources have features that make testing easier and more effective. These include touch screen displays dashboards and control panels where you can save and set parameters. In addition, ac dc power supply units that can plot their voltage and current on front-panel displays are becoming popular with test engineers.
Have a look at the modern ac dc power supply units available at power-supply.tw online and buy according to your need. The e-store is large enough to accommodate any need.
Location: New Taipei City, Taiwan

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