How to Read a Power Supply Label
External PSU labels can be tricky to understand. They also feature a ton of icons and markings that you may not already know. Like any other piece of equipment, external Power Supply Units (PSUs) can wear out. A good power supply is foundational to proper care of your IT network, allowing each device to operate at highest cgsmthood.comted Reading Time: 5 mins. May 10, · Most power supply labels have the following components in them. AC input is the range of current that a power supply can convert to DC. It’s measured using voltage (V) and ranges between VV. Hertz refers to the frequency of alternating current.
Every electronic device requires a power supply to power it in order to run its function. A power supply is a unit that converts one type of electrical power to another type to power an electrical load. They can also convert one form of energy like mechanical, chemical or solar into electrical energy. A power supply is capable of converting electric current coming from a source into the correct voltage, frequency, and current in order to power the intended load. Considering that different gadgets require different amount of electric power to power them, a power supply is a print that gives the specification of that particular power supply.
Different manufacturers have different labels on their power supply units but the content is interpreted similarly. Most power supply labels have the following components in them.
Other symbols that are used include the polarity symbol. To indicate who certified your power supply, you will come across symbols that represent different testing companies and different countries. Your email address will not be published.
Save my name, email, and website in this browser for the next time I comment. Notify me of follow-up comments by email. Notify me of new posts by email. Search for:. What is a power supply label? How do you read a power supply label? AC input is the range of current that a power supply can convert to DC. Hertz refers to the frequency of alternating current.
DC output is the amount of direct current that a power supply gives as an output after converting AC. For example 12V power supply. Max load is interpreted as the maximum amperage that a rail can have before shutting down. Leave a Reply Cancel reply Your email address will not be how to cure olives in water.
3. More Alphabet Symbols and What They Stand For
Apr 02, · The Power Numbers. Wattage. This is often the first marking you might find on your A/C Adapter. It simply notes the power of the adapter. You may notice the iPhone power adapter is rated only for 5W, while your iPad power adapter will have a 10W rating. Thus, a 5W adapter won’t have enough power to charge an iPad cgsmthood.comted Reading Time: 4 mins. Nov 10, · On the label you will see the following; v, 5v, 12v (there may be more than one 12v), 5vSB (stand-by), v, and for the older models -5v, and under each, the associated amperage. A . Mar 04, · However, you should quickly check to see if the product of the maximum voltage and current ratings are equal to the power. If it is equal, then the power supply has a rectangular output characteristic. If it is greater, than the power supply has an auto-ranging output characteristic. Auto-ranging is outside the scope of this article.
External PSU labels can be tricky to understand. They also feature a ton of icons and markings that you may not already know. A good power supply is foundational to proper care of your IT network, allowing each device to operate at highest efficiency.
A poor unit, or one that is mismatched in terms of wattage, can prematurely wear out the equipment that attaches to it. When it comes time to replace your current supply you can actually look at external PSU labels to get started in your search for an optimal replacement.
We always recommend you take your time and learn the product landscape. Of course, if you need help our technicians will be happy to assist with your decision making process. This article is intended to give you a broad stroke understanding of external power supply units.
PSUs come in a vast array of levels also called efficiencies and tiers. The FCC symbol indicates that this manufacturer is certified, verified and declared to have conformed in harmony with the standards of the US Federal Communications Commission.
The FCC tests for limits of allowable electromagnetic interference from digital and electronic devices. That symbol ensures that your PSU will not interfere with WiFi and other radio frequency based technology used in proximity with your powered device.
The CE symbol indicates that this manufacturer and its products have met the list of relevant EN standards , and is compliant as it pertains to electromagnetic and low voltage testing within European sovereignties. Each geopolitical ruling body has its own unique standards. Underwriters Laboratory UL began in and is a global product testing company.
They offer 2 different designations. Is a Recognized Component Mark. The U. Thresholds are listed on the table partially displayed and linked to below. These levels designate how much input and output current is needed for your device. You want to stay within the prescribed limits in order for your device to work properly. Too much or too little can diminish the ability for your equipment to function. The important thing about efficiency is that the higher the level of your PSU, the better it will perform with regard to energy consumption.
The first gets you into the dance, the second makes you a stand out. But be careful. You may want to read the review sites and even double-check with your device manufacturer to see what it recommends. Your email address will not be published.
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April 27 Expensive, however, does not necessarily mean good or high quality. European Union or CE The CE symbol indicates that this manufacturer and its products have met the list of relevant EN standards , and is compliant as it pertains to electromagnetic and low voltage testing within European sovereignties.
Following is a list of some of the other authorities you might see you your PSU: 4. Efficiency Levels The U. The newest, most energy-efficient standard is Level 6. Leave a Reply Cancel reply Your email address will not be published. Reset Password Lost your password?