| 摘要 |
The invention relates to an electronic device (10) for commuting an electric load, comprising an electronic commutator (16) controlled by a microcontroller (12), positively supplied at a voltage (Vcc), with an outlet which may adopt at least three states and operating in a "nominal" mode which may be switched intentionally or by default to a "failsafe" mode in case of malfunction of said electronic commutation device (10), characterised in that said electronic commutation device (10) additionally comprises: a positive commuted supply (Vbat) greater than (Vcc) and connected to the microcontroller (12) of the electronic commutation device (10) by a resistive polarisation device (14) to carry out the function of safety barrier, and an interface device (18) for recognising the presence or absence of commuted supply (Vbat). The invention further relates to a method for operating such a device. |
