1results about How to "Small conduction current" patented technology

The application provides a signal transmission system, an electronic control unit and a short-circuit protection circuit of an interface driving circuit, relates to the technical field of electronic circuits, and the delay unit and the current limiting unit in the circuit are connected with the interface driving circuit; the interface driving circuit at least comprises a first switch tube, the current limiting unit is used for limiting the conduction current of the first switch tube within a first time, and the delay unit is used for controlling the duration of the first time; the starting point of the first time is the time point when the first switch tube is driven, the conduction current of the first switch tube within the first time is greater than the conduction current within other times, a higher current can be passed within the first time when the first switch tube is opened, the fast level conversion is completed to realize driving, and the conduction current of the first switch tube within other times is reduced; thus, even if a short circuit occurs, the thermal damage of a large current to an electrical appliance can be avoided, so that the short-circuit protection of the interface driving circuit is realized.