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.
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