Ams Ag

Austriamicrosystems Ag

Jan Enenkel

Peter Trattler

Jens Hofrichter

The photodetector device comprises a substrate () of semiconductor material, a sensor region () in the substrate, a plurality of grid elements () arranged at a distance (d) from one another above the sensor region, the grid elements having a refractive index, a region of lower refractive index (), the grid elements being arranged on the region of lower refractive index, and a further region of lower refractive index () covering the grid elements.

Photodetector device with integrated high-contrast grating polarizer

A portable environment sensing device is described which comprises at least one time-of-flight sensor capable of detecting the distances from the time-of-flight sensor to at least two features within the field of view of the time-of-flight sensor simultaneously. The portable environment sensing device further comprises a processing unit capable of converting the at least two measured distances into at least two different distance signals, where each distance signal is correlated with the corresponding measured distance, and an output interface providing the at least two distance signals to a user simultaneously.

Portable environment sensing device

A biometric sensor arrangement () comprises a first radiation source (), a second radiation source () that is implemented as a flash radiation source and a driver () coupled to the first and the second radiation source () and configured to selectively operate the first and the second radiation source (). Moreover, the biometric sensor arrangement () comprises a photosensor () and a signal conditioning unit () coupled to the photosensor () and designed to provide a biometric signal (SB).

Biometric sensor arrangement and method for generating a biometric signal

In one embodiment, a system comprises a circuit arrangement and a module having a first mechanical switch and an electrode. The circuit arrangement has a terminal that is connected to the module, a drive unit that is connected to the terminal and serves to provide a drive signal, a first evaluation unit that is connected to the terminal and serves for key detection, as well as a second evaluation unit that is connected to the first evaluation unit and serves for proximity detection. Therein the drive signal is designed for driving an electrode of a capacitive proximity sensor in the module, the first evaluation unit is designed to provide a touch signal according to an actuation of the module by a person, and the second evaluation unit is designed to provide a proximity signal according to an approach of a person to the module.

System and method for evaluating a module

A voltage converter comprises a step-down converter circuit (DCDC) with an inductive accumulator (LSW) and a first capacitive accumulator (CDC) and a charge pump circuit (CP) with at least one second capacitive accumulator (CFLY, CFLY,CFLY). The step-down converter circuit (DCDC) which can be fed a supply voltage (VBAT) on the input side is designed to charge the first capacitive accumulator (CDC) to a first intermediate voltage in switched mode. The charge pump circuit (CP) is designed to charge the at least one second capacitive accumulator (CFLY, CFLY,CFLY) to a second intermediate voltage using the supply voltage (VBAT) and to generate an output voltage from the first and second intermediate voltages.

Voltage converter with step-down converter circuit and method for converting voltage

The invention relates to a detector circuit comprising a connection for a voltage supply (Vbat) and a connection for connecting a lamp (LED), said connection being connected to the connection for a voltage supply (Vbat) and to a first control component (IC) of a first interface protocol and a second control component (PWM) of a second interface protocol. The detector circuit further comprises a first input node (In) and a second input node (In), wherein the first control component (IC) is connected to the first input node (In) and the second input node (In) and the second control component (PWM) is connected to the second input node (In). A detector (det) for ascertaining an interface standard is coupled to the connection for a voltage supply (Vbat) and the first input node (In) on one side and to ground (GND) on the other side.

Detector circuit and method for operating a detector circuit

In one embodiment, a voltage converter comprises a step-down converter (DC), to which can be supplied, on the inlet side, an inlet voltage (VBat), to which is supplied, on the inlet side, a control voltage (Vs), and which has an outlet () to make available a first outlet voltage (V), as a function of the inlet voltage (VBat) and the control voltage (Vs), a charge pump (CP), coupled with the step-down converter (DC) on its outlet (), with an outlet () to make available a second outlet voltage (V), as a function of the inlet voltage (VBat) and the first outlet voltage (V), and a voltage regulator (Ctl), to which a first effective voltage (Vb), as a function of the first outlet voltage (V), and a second effective voltage (Vr), as a function of the second outlet voltage (V), are supplied, and which has an outlet to make available the control voltage (Vs), as a function of the first and the second effective voltages (Vb, Vr). Moreover, a method for voltage conversion is disclosed.

Voltage converter and method for voltage conversion

A voltage converter is provided in which a first terminal (A) and a second terminal (B) are provided, each coupled to a switching means, the switching means is coupled to respective terminals for connecting a first capacitor (C), a second capacitor (C) and a third capacitor (C), and the voltage converter is configured for being operated in first and second modes of operation each comprising at least three phases, and in which the three capacitors (C, C, C) are inserted in series connection (S) between the first terminal (A) and a reference potential terminal () in one phase, and in each of the two other phases a first path and a second path (P, P) are provided in each case in parallel connection with at least one of the three capacitors (C, C, C) related to the second terminal (B).

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Gratkorn, Austria

Jan Enenkel