Abstract: An electronic device includes multiple integrated circuits, each containing a power transistor connected between an input voltage node and a load node, as well as a regulation circuit generating at least one sense current representing the output current of the power transistor. The regulation circuits modulate the output currents of their power transistors based on a value derived from the sense currents generated by the regulation circuits of other integrated circuits. This derived value can be based on an average of the sense currents generated by the regulation circuits or on one of the sense currents. In particular, the integrated circuits can be arranged in a daisy-chained relationship, allowing each regulation circuit to compare its sense current with the one from the immediately preceding circuit, except for the first regulation circuit, which compares its sense current with the last circuit's sense current in the chain.

Abstract: A control device for a USB interface including at least one first terminal for inputting the data to be transmitted and at least one second terminal for the transmission of the packet data on a bus; the packet data include one end-of-packet signal. The USB interface includes one circuit for the data transmission on said at least one second terminal; the USB interface is adapted to receive as an input a signal for the activation of the transmission circuit when data are received from the at least one first terminal and the transmission circuit includes a bias circuit. The control device includes a circuit for the detection of an end-of packet signal on said bus and a control circuit adapted to activate the bias circuit of the transmission circuit if said end-of-packet signal is detected by said detection circuit.

Abstract: A control device for a USB interface including at least one first terminal for inputting the data to be transmitted and at least one second terminal for the transmission of the packet data on a bus; the packet data include one end-of-packet signal. The USB interface includes one circuit for the data transmission on said at least one second terminal; the USB interface is adapted to receive as an input a signal for the activation of the transmission circuit when data are received from the at least one first terminal and the transmission circuit includes a bias circuit. The control device includes a circuit for the detection of an end-of packet signal on said bus and a control circuit adapted to activate the bias circuit of the transmission circuit if said end-of-packet signal is detected by said detection circuit.