ShenZhen Yinghuiyuan Electronics Co.,Ltd
1. Input characteristics
Input voltage and voltage adjustment range.
Input frequency and frequency adjustment range.
Rated input current. Refers to the input voltage and output current at rated conditions.
Input sag and instant outage. This is a state in which the input voltage drops or breaks momentarily and is defined by the rated output voltage and current. The test indicators are voltage and time.
Impulse current.
Leakage current.
Efficiency. Because the index is related to heat, so the heat dissipation to consider efficiency.
Whether the input is 2PIN or 3PIN?
2. Output characteristics
Rated output voltage.
Rated output current.
Output voltage adjustment rate.
Output current adjustment range.
Ripple noise. Including the maximum ripple voltage; Maximum ripple noise voltage.
The change in output voltage caused by a transient current change.
Functional requirement
Overcurrent protection.
Overvoltage protection.
Input undervoltage protection.
Overheat protection.
Insulation resistance. Input end and housing; Input terminal and output terminal; Output terminal and housing.
Insulation voltage. High voltage: input and output, input and ground, input AC between the two levels, according to the safety standards to set high voltage value.
3. Structure specifications
Shape conditions: such as the outer packaging machine case, etc.
Profile dimensions and dimensional tolerances.
Cooling conditions and methods.
Interface location and flag.
Position of operating parts (output voltage adjustable resistor, switch, indicator) and prompt text.
Power adapter nameboard content
4, use of environmental conditions
Temperature.
Humidity.
Resistance to vibration and impact.
Other conditions
Input noise.
The surge.
Static noise (requirements for cases).
These are just some basic parameters, which must be within the range of safety and data requirements that the power adapter is supposed to meet.
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October 09, 2024
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