Sensirion Ag

Andrea Sacchetti

Dominik Niederberger

Dominic Boni

Markus Graf

Andreas Tiefenauer

Pascal Gerner

Andrea Wüest

Dominic Böni

Martin Wirz

Moritz Koehler

Michel Kinzer

David Hasenfranz

Tomas Pop

Böni Dominic

In a portable electronic device components () consuming electrical power during operation may generate heat. A temperature sensor () for sensing an ambient temperature (T) of the portable electronic device may as a consequence not supply the correct temperature value. It is suggested to provide a compensator () for determining a compensated ambient temperature (T) dependent on at least the sensed ambient temperature (T) and information (P) related to the electrical power consumed by at least one of the components ().

Portable electronic device

In a portable electronic device, a temperature sensor is provided for sensing an ambient temperature of the portable electronic device. At least one other temperature sensor is provided for sensing a temperature inside the portable electronic device. The portable electronic device further comprises a set of components radiating heat in an active state in response to the consumption of electrical energy. A calibration module is adapted to conduct a calibration measurement during or in connection with an active state of at least a first component out of the set, and is adapted to determine a set of calibration parameters in response to the calibration measurement for adjusting the at least one sensed inside temperature. A compensator is provided for determining a compensated ambient temperature dependent on at least the sensed ambient temperature and the at least one adjusted sensed inside temperature.

Portable electronic device with compensated ambient temperature measurement

In a portable electronic device, a temperature sensor () is provided for sensing an ambient temperature (T) of the portable electronic device. At least one other temperature sensor () is provided for sensing a temperature (T) inside the portable electronic device. The portable electronic device further comprises a set of components () radiating heat in an active state in response to the consumption of electrical energy. A calibration module () is adapted to conduct a calibration measurement during or in response to an active state of at least a first component out of the set, and is adapted to determine a set of calibration parameters (c) in response to the calibration measurement for adjusting the at least one sensed inside temperature (T). A compensator () is provided for determining a compensated ambient temperature (T) dependent on at least the sensed ambient temperature (T) and the at least one adjusted sensed inside temperature (c, T).

Portable electronic device with inside temperature calibation

There is provided a portable electronic device with one or more integrated temperature sensors () for measuring an ambient temperature, a compensator () for reducing the difference between a sensor output (Ts) and the ambient temperature (Ta) with the compensator () switching depending on environmental and/or handling conditions between a plurality of compensation modes selected dependent on measurements of one or more other integrated and/or external sensors.

Portable electronic device with integrated temperature sensor

In a portable electronic device components () consuming electrical power during operation may generate heat. A temperature sensor () for sensing an ambient temperature (T) of the portable electronic device may as a consequence not supply the correct temperature value. It is suggested to provide a compensator () for determining a compensated ambient temperature (T) dependent on at least the sensed ambient temperature (T) and information (P) related to the electrical power consumed by at least one of the components (). After a power down and a reactivation of the portable electronic device, actual internal states (x(b)) of the compensation model are estimated dependent on last internal states (x(a)) stored at the power down, dependent on an estimated course of the sensed temperature (T*) between the interruption and the reactivation, and dependent on an estimated course of the information (P*) related to the electrical power consumed by the at least one heat source () between the interruption and the reactivation.

Growing community of inventors

Zurich, Switzerland

Andrea Sacchetti