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Several protective features of the power adapter

source:Industry News Popular:adapter release time:2022-03-15 10:19:09 Article author:sznbone

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  When producing power adapters, safety protection is required, which is inevitable. The following power adapter manufacturers will give you a detailed description of several protection features of power adapters.

  Overvoltage protection

  In the event of a broken loop, such as a broken optocoupler or a compromised TL431 voltage divider network, the power adapter must stop working immediately and remain in this state until the user restarts the adapter.

  Short circuit protection

  Must be able to withstand a sustained short circuit at the output without damage. When the fault disappears, the adapter must be able to recover from protected mode and re-supply rated power.

  Over temperature protection

  If the temperature of the power adapter exceeds a certain temperature value, the adapter is at risk of damage. To avoid this, a thermal sensor is used to continuously monitor the temperature, and if the temperature exceeds a limit set by the designer, the adapter will continue to shut down. When the user restarts the power supply and the temperature drops, the power adapter resets.

  Over power protection

  For some power supplies, it is important that under worst-case conditions, such as when the load draws too much current, the maximum output current remains under control without actually shorting out.


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