Abstract: A converter that makes it possible to selectively switch between various converter architectures that are capable of supplying different output voltages on the basis of one and the same input voltage. The various architectures share at least some electronic components with one another, thereby decreasing the production cost of the converter according to the invention. The converter is particularly advantageous for lighting modules for motor vehicles, in which there are substantial space constraints but in which wide output-voltage ranges are required to be able to supply a varied and substantial number of electroluminescent light sources (LEDs) with power.

Abstract: A converter that makes it possible to selectively switch between various converter architectures that are capable of supplying different output voltages on the basis of one and the same input voltage. The various architectures share at least some electronic components with one another, thereby decreasing the production cost of the converter according to the invention. The converter is particularly advantageous for lighting modules for motor vehicles, in which there are substantial space constraints but in which wide output-voltage ranges are required to be able to supply a varied and substantial number of electroluminescent light sources (LEDs) with power.

Abstract: The invention provides a device for driving the electrical power supply of at least one electronic circuit branch comprising at least one light source of an automotive vehicle. A converter circuit converts an input voltage VIN into a load voltage (or current) that is applied to said circuit branch, and control means are configured to control the converter circuit by means of a periodic PWM signal having a predetermined frequency f. The frequency f is adapted in real time and according to a disruption that is detected in the input voltage signal VIN in order to avoid any occurrence of flickering in the intensity of the luminous flux emitted by the light sources.

Abstract: A device that provides a circuit for controlling the power supply of a plurality of groups of light sources, preferably of the light-emitting diodes type, which perform a plurality of lighting functions for an automobile vehicle. The device is noteworthy in that it enables a primary output voltage and several high-voltage secondary outputs to be produced, corresponding to the power supply requirements of the various groups of light sources, with the use of a single switch-mode converter circuit.

Abstract: The invention provides a device for driving the electrical power supply of at least one electronic circuit branch comprising at least one light source of an automotive vehicle. A converter circuit converts an input voltage VIN into a load voltage (or current) that is applied to said circuit branch, and control means are configured to control the converter circuit by means of a periodic PWM signal having a predetermined frequency f. The frequency f is adapted in real time and according to a disruption that is detected in the input voltage signal VIN in order to avoid any occurrence of flickering in the intensity of the luminous flux emitted by the light sources.

Abstract: A device that provides a circuit for controlling the power supply of a plurality of groups of light sources, preferably of the light-emitting diodes type, which perform a plurality of lighting functions for an automobile vehicle. The device is noteworthy in that it enables a primary output voltage and several high-voltage secondary outputs to be produced, corresponding to the power supply requirements of the various groups of light sources, with the use of a single switch-mode converter circuit.

Abstract: The invention relates to a method of testing an integrated circuit comprising memory cells arranged around a core whose clock input is subjected to a conditional inhibition in the test mode. The method in accordance with the invention includes the following steps: configuration of the circuit in the test mode (T/R=1, TM, En=0), selection of a virtual address (Sel(DV)), canceling the inhibition (En=1) of the clock input of the core following said selection. The invention enables to transfer to the core enough clock pulses to allow the core to properly achieve the operating sequence that it should emulate, without resorting to prior storage of the number of pulses necessary for this operating sequence. The inhibition of the clock input of the core can be controlled by means of JTAG-compliant series of instructions. Application: Validation of the functioning of integrated circuits.

Abstract: The present invention relates to a method for optimization of temporal performances of a network of electronic cells, comprising a plurality of cells which are taken from a library (LIB), comprising several categories of cells, the cells of a same category all having the same functionality, and being arranged in increasing order of power.

Abstract: The invention relates to a method of testing an integrated circuit comprising memory cells arranged around a core whose clock input is subjected to a conditional inhibition in the test mode.