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How to test the input current of the power adapter
time2019/05/11
- Generally, the power supply is not measured by this parameter. The reason why they write this parameter on the label is because of the safety certification requirements. The input current test standard is within all input voltage ranges (some are 100-240V, the most stringent is 85-265V).
The output is greater than 3.42 amps, but the voltage should be controlled. There is no power supply circuit and the voltage adapts to a wide range. However, if you have high requirements, you should pay attention to the voltage. If you burn out, you should consider buying a high power. Is the output current is large, generally the power of the electrical appliance is too large, the secondary current is too large, causing the primary current to be large, it will burn, especially for a long time, the heat dissipation is not good, the selenium steel is not tight enough, the eddy current causes the hair If the heat is increased, you can also see if the electrical design is reasonable.
Generally, the power supply is not measured by this parameter. The reason why they write this parameter on the label is because of the safety certification requirements. The input current is tested over all input voltage ranges (some are 100-240V, strictly 85-265V) and the input current cannot be greater than the nominal value.
It is impossible to sit the power factor with a small power, and the normal value is about 0.5. Only the power factor of 100W or more is required.
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Lianyunda Electronics covers all large, medium and small power AC/DC switching power supplies, power adapters and LED power supplies. The company adheres to the principle of "technology is people-oriented". The principle of "quality is life" is established according to the ISO9001-2000 standard. , a complete quality assurance system, from production to sales.