Power adapter-A power adapter, also known as an AC DC adapter, is an external switching power supply.Power adapters are widely used in various electronic devices that require power but do not include internal components to obtain the required voltage and power from themselves.
AC input voltage-Our power adapter has an input voltage range of AC 90Vac to 264Vac.The nominal input voltage range is 100 Vac to 240 Vac.Different countries have different voltage systems.For example, in the United States, the household voltage is usually 110V AC, while in European countries, the voltage standard is 220V or 230V AC.
AC input frequency-The typical frequency value is 50 Hz or 60 Hz, and a tolerance of ± 2% is acceptable within this range.oursPower adapter ChinaThe AC input frequency is 47Hz~63Hz, which can meet the requirements of various parts of the world.
AC Inrush current -Also known as input surge current.It is the maximum input current of the power adapter when the electrical device is first turned on.When designing power adapters, engineers should ensure that short circuit protection responds quickly to short circuit faults, but should not be interrupted during surge currents.
Aging-The aging test simulates the real environment in which the power adapter operates at full load to check for quality issues.The power supply should age for 4 hours.Aging testing is one of the most effective methods to ensure stable quality of power adapters.
Energy Efficiency -It is a requirement for power consumption under no-load conditions and the average effective efficiency of external power adapters.The United States needs to meet DOE VI, while Europe needs to meet ERP test reports.Australia needs to meet its GEMS.
ESD——Electrostatic discharge of the power adapter.It is a sudden flow of electric current between two electrically charged objects caused by contact.Generally, the air discharge standard of our power adapter is 8KV, and the contact discharge is 4KV, such as our high-quality24v 2a power adapter。
Hipot (dielectric withstand voltage)-This is an electrical test of the power adapter to check the effectiveness of the insulation.It is one of the main methods for testing the functionality of power adapters.Generally, our product testing standards are 3000Vac/10mAMax/60 seconds, and 3300Vac/5mAMax/3S.
Overcurrent protection-Overcurrent is a large current in the power adapter.It can cause high temperatures or fire, which can damage the equipment.Fuses are widely used to protect circuits from overcurrent damage.
Overvoltage protection-When the voltage in the power adapter exceeds the voltage required by the power adapter, it is more likely to be damaged and cause safety issues.A filter is used in the power adapter to prevent this from happening.
Operating temperature-This is the temperature at which the power adapter can operate.The power adapter can operate effectively within this temperature range.Professional power adapter and battery charger manufacturerOperating temperature of the power adapter provided by AlrightpowerFrom 0 ℃ to 40 ℃.If you use the power adapter outside the temperature range, it may not work properly.
Short circuit protection-A short circuit is when the load on the power adapter exceeds the capacity of the power adapter.In the event of a short circuit, if there is short circuit protection, the power adapter will immediately shut down and resume normal operation after the short circuit is removed.
Ripple-The residual periodic change in the voltage of the internal self alternating current in the power adapter.Ripples are a waste.Will have many negative effects.It can heat components and cause noise.Generally, we try to ensure that the power adapter has a low ripple.Generally, our power adapter measurement uses a 20MHz bandwidth oscilloscope to output a 0.1Uf/50V ceramic capacitor and a 47Uf/50V electrolytic capacitor in parallel.(Test at rated input and rated output conditions)
Safety standards-Safety standards are different from country to country.For example, the United States requires UL FCC, Europe requires CE, Japan requires PSE, China requires CCC, and the Korean market requires KC.When selecting a power adapter, ensure that it meets relevant safety standards.This is a guarantee of quality.
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