The four protection features of Eahunt laptop power adapter have excellent light load or standby energy consumption performance. Now Wentong editor will let you know the four protection features of Wentong laptop power adapter.
The notebook power adapter has the following protection features:
Power Adapter
The first type: over voltage protection (OVP)
In the case of damage to the loop, such as damage to the optocoupler or the TL431 voltage divider network is affected, the power adapter must stop working immediately and remain in this state before the user restarts the adapter.
Type 2: Short Circuit Protection (SCP)
It must be able to withstand a continuous short circuit of the output without damage. When the fault disappears, the adapter must be able to recover from the protection mode and provide rated power again.
The third type: over temperature protection (OTP)
If the temperature of the power adapter exceeds a certain temperature value, there is a risk of damage to the adapter. In order to avoid this situation, it is necessary to use a thermal sensor to continuously monitor the temperature, and when the temperature exceeds the limit set by the designer, the adapter is continuously turned off. When the user restarts the power supply and the temperature drops, the power adapter resets.
Fourth: Over Power Protection (OPP)
For some power supplies, it is important to maintain the maximum output current in a controlled state under the worst conditions, such as excessive current consumed by the load, without actual short circuit.
