Abstract: A voltage regulator includes a pre-regulation circuit and a low drop-out voltage regulator. The pre-regulation circuit is configured to generate a first power supply voltage based on an input voltage. The low drop-out voltage regulator is configured to generate a second power supply voltage based on the first power supply voltage. Additionally, the low drop-out voltage regulator is configured to filter a low-frequency component of the first power supply voltage.

Abstract: Load current consumption measured using a first resistor having a high resistive value and a second resistor having a low resistive value. Differential amplifiers, the outputs of which are coupled to analog-to-digital converters and to a processing circuit unit, are connected to each of the nodes of the resistors. Depending on the current level, the processing circuit unit advantageously selects one of the analog-to-digital converters to estimate the present consumption of current in the load. Each input terminal of a resistor is advantageously power supplied from a power amplifier and each power amplifier is advantageously driven by a control loop. For low load currents, the first amplifier associated with the first resistor power supplies the load through the resistors while, for high load currents, when this first amplifier saturates, the second amplifier associated with the second resistor, takes over from the first amplifier to continue to power supply the load.

Abstract: Load current consumption measured using a first resistor having a high resistive value and a second resistor having a low resistive value. Differential amplifiers, the outputs of which are coupled to analog-to-digital converters and to a processing circuit unit, are connected to each of the nodes of the resistors. Depending on the current level, the processing circuit unit advantageously selects one of the analog-to-digital converters to estimate the present consumption of current in the load. Each input terminal of a resistor is advantageously power supplied from a power amplifier and each power amplifier is advantageously driven by a control loop. For low load currents, the first amplifier associated with the first resistor power supplies the load through the resistors while, for high load currents, when this first amplifier saturates, the second amplifier associated with the second resistor, takes over from the first amplifier to continue to power supply the load.

Abstract: A voltage regulator includes a pre-regulation circuit and a low drop-out voltage regulator. The pre-regulation circuit is configured to generate a first power supply voltage based on an input voltage. The low drop-out voltage regulator is configured to generate a second power supply voltage based on the first power supply voltage. Additionally, the low drop-out voltage regulator is configured to filter a low-frequency component of the first power supply voltage.

Abstract: Load current consumption measured using a first resistor having a high resistive value and a second resistor having a low resistive value. Differential amplifiers, the outputs of which are coupled to analog-to-digital converters and to a processing circuit unit, are connected to each of the nodes of the resistors. Depending on the current level, the processing circuit unit advantageously selects one of the analog-to-digital converters to estimate the present consumption of current in the load. Each input terminal of a resistor is advantageously power supplied from a power amplifier and each power amplifier is advantageously driven by a control loop. For low load currents, the first amplifier associated with the first resistor power supplies the load through the resistors while, for high load currents, when this first amplifier saturates, the second amplifier associated with the second resistor, takes over from the first amplifier to continue to power supply the load.

Abstract: A USB Type-C device supporting a bidirectional power supply, includes: a first device terminal configured to be coupled to a second USB Type-C device; a second device terminal configured to be coupled to a rechargeable DC voltage power source; and a reversible switched-mode power supply coupled to the first device terminal and the second device terminal.

Abstract: A USB Type-C device supporting a bidirectional power supply, includes: a first device terminal configured to be coupled to a second USB Type-C device; a second device terminal configured to be coupled to a rechargeable DC voltage power source; and a reversible switched-mode power supply coupled to the first device terminal and the second device terminal.

Abstract: A module incorporated within a system-on-a-chip operating in a steady-state power supply phase is powered by supplying to the module a regulated power supply voltage obtained from a feedback control loop. The receives a main power supply voltage and a negative feedback voltage. The negative feedback voltage is generated inside the system-on-a-chip starting from an effective supply voltage of the module and from a setpoint signal corresponding to a desired regulated power supply voltage.

Abstract: A module incorporated within a system-on-a-chip operating in a steady-state power supply phase is powered by supplying to the module a regulated power supply voltage obtained from a feedback control loop. The receives a main power supply voltage and a negative feedback voltage. The negative feedback voltage is generated inside the system-on-a-chip starting from an effective supply voltage of the module and from a setpoint signal corresponding to a desired regulated power supply voltage.

Abstract: A module incorporated within a system-on-a-chip operating in a steady-state power supply phase is powered by supplying to the module a regulated power supply voltage obtained from a feedback control loop. The receives a main power supply voltage and a negative feedback voltage. The negative feedback voltage is generated inside the system-on-a-chip starting from an effective supply voltage of the module and from a setpoint signal corresponding to a desired regulated power supply voltage.

Abstract: A module incorporated within a system-on-a-chip operating in a steady-state power supply phase is powered by supplying to the module a regulated power supply voltage obtained from a feedback control loop. The receives a main power supply voltage and a negative feedback voltage. The negative feedback voltage is generated inside the system-on-a-chip starting from an effective supply voltage of the module and from a setpoint signal corresponding to a desired regulated power supply voltage.

Abstract: A process for performing an auto-test of a fully discharged battery of an electronic appliance including a battery charger, said process involving the steps of : performing an initialization phase; charging said battery with a predetermined constant current during a predefined period allowing stabilization of said current (Icurrent); detecting the voltage of said battery after said predefined period, said battery being still in charge; testing whether said sensed voltage is comprised within a predetermined range of threshold values (V1, V2), and reporting a battery failure when said sensed value is outside said range. The invention is particularly adapted to the auto-test of a backup battery made of Electric double layer capacitors or any fully discharged backup battery.

Abstract: Electronic device (101) comprising a power source (110), a power management unit (102) coupled to the power source, and a set of loads (103a,103b, 103c,103d), the power management unit comprising a set of voltage regulators blocks (104a,104b, 104c,104d), each voltage regulator block being respectively coupled to an associated load of the set of loads for allowing power transfer from the power source to the load. The electronic device comprises a spike detector block (106), coupled to each of the voltage regulator blocks, and configured to detect a spike in a voltage signal from a voltage regulator block for testing the presence and the operability of a decoupling capacitor (Ca, Cb, Cc, Cd) between an output of the voltage regulator block and an input of the associated load.

Abstract: A process for performing an auto-test of a fully discharged battery (130) of an electronic appliance including a battery charger (160), said process involving the steps of: performing (210) an initialization phase; charging (220) said battery (130) with a predetermined constant current during a predefined period allowing stabilization of said current (Icurrent); detecting (230) the voltage of said battery after said predefined period, said battery being still in charge; testing (240) whether said sensed voltage is comprised within a predetermined range of threshold values (V1, V2), and reporting a battery failure when said sensed value is outside said range. The invention is particularly adapted to the auto-test of a backup battery made of Electric double layer capacitors or any fully discharged backup battery.

Abstract: It is proposed a system (32) for testing a device comprising a HDMI transmitter delivering out output signals and being able to operate in a test mode, the system (32) comprising: —an HDMI test unit (34) different from the device to be tested which is able to carry out measurements on the output signals of the device to be tested and has a controller interface (38) controlling the measurements, the controller interface (38) being adapted to be controlled by the device when the device operates in test mode. It is also proposed a method of using the HDMI test unit of such system. The system enables to test a device comprising a HDMI transmitter in a faster way.

Abstract: Electronic device (101) comprising a power source (110), a power management unit (102) coupled to the power source, and a set of loads (103a, 103b, 103c, 103d), the power management unit comprising a set of voltage regulators blocks (104a, 104b, 104c, 104d), each voltage regulator block being respectively coupled to an associated load of the set of loads for allowing power transfer from the power source to the load. The electronic device comprises a spike detector block (106), coupled to each of the voltage regulator blocks, and configured to detect a spike in a voltage signal from a voltage regulator block for testing the presence and the operability of a decoupling capacitor (Ca, Cb, Cc, Cd) between an output of the voltage regulator block and an input of the associated load.

Abstract: A process for performing an auto-test of a fully discharged battery (130) of an electronic appliance including a battery charger (160), said process involving the steps of: performing (210) an initialization phase; charging (220) said battery (130) with a predetermined constant current during a predefined period allowing stabilization of said current (Icurrent); detecting (230) the voltage of said battery after said predefined period, said battery being still in charge; testing (240) whether said sensed voltage is comprised within a predetermined range of threshold values (V1, V2), and reporting a battery failure when said sensed value is outside said range. The invention is particularly adapted to the auto-test of a backup battery made of Electric double layer capacitors or any fully discharged backup battery.