| 摘要 |
The self-powered detection device comprises a Non-Volatile Memory (NVM) unit (52) formed by at least a NVM cell and a sensor which is activated by a physical or chemical action or phenomenon, the NVM unit being arranged for storing in said NVM cell, by using the electrical power of said electrical stimulus pulse, a bit of information relative to the detection by said sensor, during a detection mode of the self-powered detection device, of at least one physical or chemical action or phenomenon applied to it with at least a given strength or intensity and resulting in a voltage stimulus signal provided between a set control terminal (SET) and a base terminal (SET *) of the NVM unit with at least a given set voltage. In a first principal embodiment, the self-powered detection device comprises a read circuit (56) and a switch (58,60) arranged in the electrical path between the ground (GND) of the sensor and a terminal of the NVM cell and having its control gate (G) electrically connected to the set control terminal (SET), said switch being ON when its control gate receives in a detection mode said voltage stimulus signal and the self-powered detection device being arranged so that this switch is OFF in the read mode. In a second principal embodiment, a reset circuit is electrically connected in a reset mode to the base terminal (SET *) of the NVM unit for resetting said NVM cell and the self-powered detection device comprises a switch (58,60) arranged between the ground (GND) of the sensor and this base terminal and having its control gate (G) electrically connected to the set control terminal (SET), said switch being ON when its control gate receives in a detection mode said voltage stimulus signal and the self-powered detection device being arranged so that this switch is OFF in the reset mode.
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