Abstract: The present description concerns a device comprising a voltage regulator comprising first and second branches comprising first, second, and third transistors, the control nodes of the first transistors of the first and second branches being coupled together, the control node of the third transistor of each first and second branch being coupled to the junction point of the first and second transistors of the same branch, a fourth transistor, and a fifth transistor, the control nodes of the fourth transistor and of the second transistor of the first branch being coupled together to a node of application of a set point voltage, the control nodes of the fifth transistor and of the second transistor of the second branch being coupled together to an output node of the regulator.

Abstract: An embodiment provides a circuit of cyclic activation of an electronic function including a hysteresis comparator controlling the charge of a capacitive element powering the function.

Abstract: An embodiment electronic circuit power supply device is configured to: flow, through a first conductor connected to a node, a first current that is an image of a second current consumed by the electronic circuit; flow a third current through a second conductor connected to the node; regulate a potential of the node to a constant value by acting on the third current; flow a fourth constant current through a third conductor connected to the node; and consume a fifth current that is an image of the third current.

Abstract: A physically unclonable function device includes a set of diode-connected MOS transistors having a random distribution of respective threshold voltages. A first circuit is configured to impose, on each first transistor, a fixed respective gate voltage regardless of the value of a current flowing in this first transistor. A second circuit is configured to impose, on each second transistor, a fixed respective gate voltage regardless of the value of a current flowing in this second transistor. A current mirror stage is coupled between the first circuit and the second circuit and is configured to deliver the reference current from a sum of the currents flowing in the first transistors. A comparator is configured to deliver a signal whose level depends on a comparison between a first current obtained from a reference current based on the first transistors and a second current of the second transistors.

Abstract: An embodiment method for smoothing consumed current is based on a current copying suite and on a current source supplying a reference current, the currents being transformed into a reference voltage for the regulation of a voltage regulator such that the consumed current viewed by the power supply only depends on the reference current.

Abstract: The present invention concerns an electronic circuit power supply device, configured to: flow, through a first conductor connected to a node, a first current that is an image of a second current consumed by the electronic circuit; flow a third current through a second conductor connected to the node, a first branch of a current mirror conducting the third current; flow a fourth constant current through a third conductor connected to the node; consume a fifth current that is an image of the third current; and regulate a potential of the node by acting on a gate potential of a transistor electrically in series with a second branch of the current mirror.

Abstract: Provided is a voltage regulator supplying a first voltage on a first output node and comprising a first input transistor of a non-inverting stage and a second biasing transistor of the non-inverting stage. The first and second transistors are coupled in series, in this order, between the first node and a second node of application of a second reference voltage. The second transistor is being configured to be controlled by a third voltage depending on the first voltage.

Abstract: An embodiment of the present disclosure relates to a circuit of cyclic activation of an electronic function comprising a hysteresis comparator controlling the charge of a capacitive element powering the function.

Abstract: A physically unclonable function device includes a set of diode-connected MOS transistors having a random distribution of respective threshold voltages. A first circuit is configured to impose, on each first transistor, a fixed respective gate voltage regardless of the value of a current flowing in this first transistor. A second circuit is configured to impose, on each second transistor, a fixed respective gate voltage regardless of the value of a current flowing in this second transistor. A current mirror stage is coupled between the first circuit and the second circuit and is configured to deliver the reference current from a sum of the currents flowing in the first transistors. A comparator is configured to deliver a signal whose level depends on a comparison between a first current obtained from a reference current based on the first transistors and a second current of the second transistors.

Abstract: The physically unclonable function device (DIS) comprises a set of MOS transistors (TR1i, TR2j) mounted in diodes having a random distribution of respective threshold voltages, and comprising N first transistors and at least one second transistor. At least one output node of the function is capable of delivering a signal, the level of which depends on the comparison between a current obtained using a current circulating in the at least one second transistor and a current obtained using a reference current that is equal or substantially equal to the average of the currents circulating in the N first transistors. A first means (FM1i) is configured to impose on each first transistor a respective fixed gate voltage regardless of the value of the current circulating in the first transistor, and a second means (SM2j) is configured to impose a respective fixed gate voltage on each second transistor regardless of the value of the current circulating in the second transistor.

Abstract: A device includes a current source, a first transistor connected between a first supply rail and an output terminal, and a second transistor connected between the output terminal and a first terminal of the current source, wherein a second terminal of the current source is connected to a second supply rail. A variable-gain amplifier circuit responds to a potential at the first terminal of the current source by applying a potential to the control terminal of the first transistor. A gain of the amplifier circuit is determined by a potential at the output terminal.

Abstract: An embodiment electronic circuit power supply device is configured to: flow, through a first conductor connected to a node, a first current that is an image of a second current consumed by the electronic circuit; flow a third current through a second conductor connected to the node; regulate a potential of the node to a constant value by acting on the third current; flow a fourth constant current through a third conductor connected to the node; and consume a fifth current that is an image of the third current.

Abstract: The present invention concerns an electronic circuit power supply device, configured to: flow, through a first conductor connected to a node, a first current that is an image of a second current consumed by the electronic circuit; flow a third current through a second conductor connected to the node, a first branch of a current mirror conducting the third current; flow a fourth constant current through a third conductor connected to the node; consume a fifth current that is an image of the third current; and regulate a potential of the node by acting on a gate potential of a transistor electrically in series with a second branch of the current mirror.

Abstract: The physically unclonable function device (DIS) comprises a set of MOS transistors (TR1i, TR2j) mounted in diodes having a random distribution of respective threshold voltages, and comprising N first transistors and at least one second transistor. At least one output node of the function is capable of delivering a signal, the level of which depends on the comparison between a current obtained using a current circulating in the at least one second transistor and a current obtained using a reference current that is equal or substantially equal to the average of the currents circulating in the N first transistors. A first means (FM1i) is configured to impose on each first transistor a respective fixed gate voltage regardless of the value of the current circulating in the first transistor, and a second means (SM2j) is configured to impose a respective fixed gate voltage on each second transistor regardless of the value of the current circulating in the second transistor.

Abstract: A device includes a first transistor connected between a first node and an output terminal and a first current source connected between the first node and a supply rail. A circuit includes a second current source connected between the supply rail and a second node, an operational amplifier having a non-inverting input configured to receive a potential set point, and a second transistor connected between the second node and an inverting input of the operational amplifier. An output of the operational amplifier is connected to a control terminal of the second transistor and further connected to a control terminal of the first transistor.

Abstract: An electronic device includes a starting circuit configured to compare a value representative of the power supply voltage with a threshold, wherein the circuit includes a generator of a current proportional to temperature.

Abstract: An embodiment method for smoothing consumed current is based on a current copying suite and on a current source supplying a reference current, the currents being transformed into a reference voltage for the regulation of a voltage regulator such that the consumed current viewed by the power supply only depends on the reference current.

Abstract: An embodiment of the present disclosure relates to a circuit of cyclic activation of an electronic function comprising a hysteresis comparator controlling the charge of a capacitive element powering the function.

Abstract: A device includes a current source, a first transistor connected between a first supply rail and an output terminal, and a second transistor connected between the output terminal and a first terminal of the current source, wherein a second terminal of the current source is connected to a second supply rail. A variable-gain amplifier circuit responds to a potential at the first terminal of the current source by applying a potential to the control terminal of the first transistor. A gain of the amplifier circuit is determined by a potential at the output terminal.

Abstract: A device includes a first transistor connected between a first node and an output terminal and a first current source connected between the first node and a supply rail. A circuit includes a second current source connected between the supply rail and a second node, an operational amplifier having a non-inverting input configured to receive a potential set point, and a second transistor connected between the second node and an inverting input of the operational amplifier. An output of the operational amplifier is connected to a control terminal of the second transistor and further connected to a control terminal of the first transistor.