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Guanyuda shared with you the difference between charger and power adapter.

Date:2018-03-24 Hits:599
Guanyuda shared with you the difference between charger and power adapter.

Guanyuda shared with you the difference between charger and power adapter.

       “The charger is used to charge the battery, and the power adapter is used to power the IT equipment.


       Their internal structure determines their application and non-mutual substitution. The charger has a charging management system inside, while the power adapter do not have it. Because of the different internal structures, their prices are also very different.

 Many consumers confuse the concept of chargers and adapters, so adapters are used as chargers. Is it possible? the answer is negativ                                                                                                     

       The differences between the charger and the adapter are mainly reflected in the following two aspects:

 Characteristic aspects

       1. IEC60950, UL60950 safety standards are used for ac dc adapters, and IEC60335, UL1310, and UL1012 are used for chargers. Safety standards specify their use: The adapter is used to power IT equipment and the charger is used to charge the battery.

       2. The physical characteristics of the lithium battery determine the charging mode: When the battery is charged, it needs a low current and low voltage input to precharge the lithium battery. The battery can be charged with the current and voltage suitable for it after being precharged. If you directly charge with high voltage and high current, the battery will be damaged. The adapter has no pre-charge function, only the charger has pre-charge function.

       3. The constant change of the battery voltage during the charging process of the lithium battery requires the charger to provide different constant voltage and constant current outputs. The charger must work in a linear manner to meet the charging requirements of the lithium battery. The adapter does not have multiple constant voltage and constant currents or charging function.

       4. According to the characteristics of the lithium battery, the charger must be charged in a constant current and constant voltage manner during the charging process, and the constant current and constant voltage range of the charger is required to be large (for example, the width from 4V to 12.6V is provided. Output), while the adapter does not have a sub-section constant current, constant voltage function, it can only provide a single, non-adjustable output voltage, current.

       5. Lithium batteries As a high-energy chemical battery, overcharging will not only damage the life of the battery, but also cause the battery to explode and cause a fire. The charger controls the output voltage within 1% of the error range. It is a good way to avoid overcharge problems and the adapter's output voltage accuracy is within 5%. Therefore, the possibility of battery damage and fire caused by overcharging of the adapter is very high.

 

 Power Adapter

 

Protection function

       1. The reverse battery of the battery will burn the battery and electronic components. Even if you install protective components on the battery side, if the electrodes are connected reversely, there is still a chance of breakdown protection, battery damage, and fire. The adapter does not have reverse battery protection, and the charger does. So use the charger to charge your battery and electrical appliances even if you are connected to the battery during the charging process.

       2. The short-circuit protection function of the lithium battery requires that the circuit be completely disconnected (the current is 0) in the event of a short circuit. Only in this way can the battery and the electronic board be protected. The charger is automatically disconnected in the event of a short circuit, the current is zero, and the adapter generates a large pulse current in the short-circuit cut-off, and a large current may break through the battery.

       3. The charger has precise over-current protection. When the current exceeds a specific gear, the charger automatically shuts off, so as to avoid damage to the battery due to excessive current, most adapters do not have protection or low accuracy of protection. The excessively low over current protection characteristics greatly increase the risk of charging accidents.

                                                                                               

   

       From the above point of view, the adapter can never be used for charging. Then somebody will ask? Can I use it to charge the battery after I add the protection board? In this way, if it is OK, the company will not have to categorize chargers and adapters according to their purpose. Safety regulators have a clear purpose definition of their use: chargers are used for battery charging; adapters are used to power IT equipment. Many power adapter manufacturers confuse the concept of misleading consumers to sell cheaper adapters as chargers, which bury a dangerous bomb for users... For your safety, please choose a regular charger with safety certification for your lithium battery. Charging.


       Foshan Shunde Guanyuda Power Co., Ltd. is a professional manufacturer engaged in the development, production and sales of various kinds of chargers, power adapters, switching power supplies and other electronic products. The company has advanced processing equipment and strong technical force. Our products meet UL/CUL, FCC (USA, Canada), GS/CE (Germany/Europe), PSE (Japan), CCC (China), SAA/C-TICK (Australia), KC (Korea), BIS (India) and other countries' safety requirements.


       The company strictly follows IS09001:2015 quality management system standards, and the latest 7S management, strict control of production and inspection of all products. Products range from 0.9W-252W (voltage from 3V-55V, current from 300mA-12A) a total of four hundred More than 60 types of models and specifications approved by the United States UL, Canada CUL / CSA, Europe TUV / GS, CE, British BS, Australia SAA, South Korea KC, Japan PSE, and ROHS, LVD, EMC, FCC, CB and other safety regulations Certification. And the newly developed 250W 360W high-power aluminum case power supply has been favored by the customer since it was put into the market. The product adopts wave soldering process, full solder joints, and good welding effect. All products do not contain (and do not exceed the limits, limit) European restrictions / prohibited cadmium, chromium, lead, mercury, PBB, PBDE six toxic substances.


       Product materials and production processes have been implemented according to  Europe and the United States ROHS standards. The company will also follow the business philosophy of "reliable power" and will provide our customers with products of high quality, reasonable price and prompt delivery. The company's high quality service will also bring better and higher economic benefits to our customers.     


CONTACT US ! Company: Foshan shunde guanyuda power supply co., Ltd


Address: Xichong Complex, Lunjiao Town, Shunde District, Foshan Town, Guangdong Province, China

TEL: +86-757-27736306 MOBILE: +86-13825571248

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