The invention discloses a power supply switch control circuit with the power down delay function. The circuit is particularly adaptive to constant powered and MCU circuits. On the condition of omitting a special power supply chip, the power down delay function of the entire circuit can be realized simply. The circuit is simple in structure and is divided into two portions, namely an input level conversion portion and a power supply switching circuit portion.
Power supply switch control circuit with power down delay function
2015-05-20
Patent
Elektronische Ressource
Englisch
Electromagnetic power supply main switch control circuit
Europäisches Patentamt | 2020
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