Abstract: A wireless charging transmitter device is includes a square wave signal generation circuit. The square wave signal generation circuit is formed by a first PMOS transistor switching circuit having a group of PMOS performance transistors and at least one PMOS functionality transistor, and a second NMOS transistor switching circuit having a group of NMOS performance transistors and at least one NMOS functionality transistor.

Abstract: A device of contactless communication by active load modulation includes a receive circuit configured to receive as an input a reception signal originating from a magnetic field intended to be received by an antenna. A transmit circuit has an output coupled to the antenna with a modulation signal in phase with the reception signal intended to be delivered thereon. A circuit compensates for a delay of the modulation signal due to the transmit circuit and to the amplitude of the reception signal. The compensation circuit determines a phase-shift value to be applied to an input signal of the transmit circuit to compensate for the delay.

Abstract: A method for controlling a signal envelope shape of modulation pulses in a driver of a wireless transmitter includes supplying a first voltage to the driver during a non-modulated state, supplying a second voltage configurable by a configurable modulation index value to the driver during a modulated state, switching between the non-modulated state and the modulated state comprising setting the modulation index value to configure the second voltage level at the same level as the first voltage and then switching between supplying the first voltage to the driver and supplying the second voltage to the driver, and filtering to a limited bandwidth the variations of the second voltage resulting from configuring the modulation index value.

Abstract: A method for controlling a signal envelope shape of modulation pulses in a driver of a wireless transmitter includes supplying a first voltage to the driver during a non-modulated state, supplying a second voltage configurable by a configurable modulation index value to the driver during a modulated state, switching between the non-modulated state and the modulated state comprising setting the modulation index value to configure the second voltage level at the same level as the first voltage and then switching between supplying the first voltage to the driver and supplying the second voltage to the driver, and filtering to a limited bandwidth the variations of the second voltage resulting from configuring the modulation index value.

Abstract: A circuit includes, in series between a first terminal and a second terminal of application of a power supply voltage, and first and second branches. The first branch includes a first transistor and a first current source coupled to the first transistor. The second branch includes a resistive element, a second transistor coupled to the resistive element and forming a current mirror with the first transistor and a second current source coupled to the second transistor. The resistive element conditions a threshold of detection of a variation of the power supply voltage.

Abstract: A rotary scanner is described. The rotary scanner includes a housing; a motor fixedly mounted relative to the housing; a structure mounted to the housing so as to be rotatable about a rotation axis by the motor; and a reflector assembly mounted to the structure via a pivot joint so as to be pivotable around a pivot axis between a rest angle and at least one other angle. The reflector assembly is biased to the rest angle and has a reflector plane parallel to the pivot axis. The rotary scanner also includes an optical source fixedly mounted relative to the housing and operable to emit an optical beam along the rotation axis and towards the reflector assembly during use; and a control interface allowing to control the rotation speed of the motor between a first rotation speed and at least one other rotation speed.

Abstract: A circuit includes, in series between a first terminal and a second terminal of application of a power supply voltage, and first and second branches. The first branch includes a first transistor and a first current source coupled to the first transistor. The second branch includes a resistive element, a second transistor coupled to the resistive element and forming a current mirror with the first transistor and a second current source coupled to the second transistor. The resistive element conditions a threshold of detection of a variation of the power supply voltage.

Abstract: A circuit includes, in series between a first terminal and a second terminal of application of a power supply voltage, and first and second branches. The first branch includes a first transistor and a first current source coupled to the first transistor. The second branch includes a resistive element, a second transistor coupled to the resistive element and forming a current mirror with the first transistor and a second current source coupled to the second transistor. The resistive element conditions a threshold of detection of a variation of the power supply voltage.

Abstract: A rotary scanner is described. The rotary scanner includes a housing; a motor fixedly mounted relative to the housing; a structure mounted to the housing so as to be rotatable about a rotation axis by the motor; and a reflector assembly mounted to the structure via a pivot joint so as to be pivotable around a pivot axis between a rest angle and at least one other angle. The reflector assembly is biased to the rest angle and has a reflector plane parallel to the pivot axis. The rotary scanner also includes an optical source fixedly mounted relative to the housing and operable to emit an optical beam along the rotation axis and towards the reflector assembly during use; and a control interface allowing to control the rotation speed of the motor between a first rotation speed and at least one other rotation speed.

Abstract: A circuit includes, in series between a first terminal and a second terminal of application of a power supply voltage, and first and second branches. The first branch includes a first transistor and a first current source coupled to the first transistor. The second branch includes a resistive element, a second transistor coupled to the resistive element and forming a current mirror with the first transistor and a second current source coupled to the second transistor. The resistive element conditions a threshold of detection of a variation of the power supply voltage.