Abstract: An integrated self-sustainable power supply includes a piezoelectric energy harvesting (PEH) beam, a power management unit (PMU) circuit located on the PEH beam, a rechargeable battery located on the PEH beam, and a positive regulated power supply output and a negative regulated power supply output. The PMU circuit includes electrical inputs/outputs. The rechargeable battery includes a negative access pad and a positive access pad, which are in electrical communication with the electrical inputs/outputs of the PMU circuit. The positive regulated power supply output and the negative regulated power supply output are also in electrical communication with the electrical inputs/outputs of the PMU circuit.

Abstract: An integrated self-sustainable power supply includes a piezoelectric energy harvesting (PEH) beam, a power management unit (PMU) circuit located on the PEH beam, a rechargeable battery located on the PEH beam, and a positive regulated power supply output and a negative regulated power supply output. The PMU circuit includes electrical inputs/outputs. The rechargeable battery includes a negative access pad and a positive access pad, which are in electrical communication with the electrical inputs/outputs of the PMU circuit. The positive regulated power supply output and the negative regulated power supply output are also in electrical communication with the electrical inputs/outputs of the PMU circuit.

Abstract: A case includes a base for receiving a portable phone and a flap hinged to the base and including a housing configured to receive a microcircuit card. A first contactless communication antenna is provided in the flap for coupling to an antenna of the microcircuit card. A second contactless communication antenna is provided in the base for coupling to an antenna of the portable phone. The first and second first contactless communication antennae are electrically connected to each other.

Abstract: A case includes a base for receiving a portable phone and a flap hinged to the base and including a housing configured to receive a microcircuit card. A first contactless communication antenna is provided in the flap for coupling to an antenna of the microcircuit card. A second contactless communication antenna is provided in the base for coupling to an antenna of the portable phone. The first and second first contactless communication antennae are electrically connected to each other.

Abstract: A case includes a base for receiving a portable phone and a flap hinged to the base and including a housing configured to receive a microcircuit card. A first contactless communication antenna is provided in the flap for coupling to an antenna of the microcircuit card. A second contactless communication antenna is provided in the base for coupling to an antenna of the portable phone. The first and second first contactless communication antennae are electrically connected to each other.

Abstract: A case includes a base for receiving a portable phone and a flap hinged to the base and including a housing configured to receive a microcircuit card. A first contactless communication antenna is provided in the flap for coupling to an antenna of the microcircuit card. A second contactless communication antenna is provided in the base for coupling to an antenna of the portable phone. The first and second first contactless communication antennae are electrically connected to each other.

Abstract: A method for managing the lifetime of a battery is disclosed herein. An ambient temperature is measured near a battery. The ambient temperature rises above a first threshold and, in response to detecting that the ambient temperature has risen above the first threshold, the battery is discharged. A battery system and a device operable with a battery are also disclosed.

Abstract: A method for managing the lifetime of a battery is disclosed herein. An ambient temperature is measured near a battery. The ambient temperature rises above a first threshold and, in response to detecting that the ambient temperature has risen above the first threshold, the battery is discharged. A battery system and a device operable with a battery are also disclosed.

Abstract: A method for managing the lifetime of a battery is disclosed herein. An ambient temperature is measured near a battery. A discharge of the battery is triggered when the ambient temperature exceeds a first temperature threshold. The battery can then be charged when the ambient temperature decreases below a second temperature threshold.

Abstract: A method for managing the lifetime of a battery is disclosed herein. An ambient temperature is measured near a battery. A discharge of the battery is triggered when the ambient temperature exceeds a first temperature threshold. The battery can then be charged when the ambient temperature decreases below a second temperature threshold.

Abstract: A portable electronics device includes a base member containing electronic circuitry for device operation and configured for handheld use. A display is operatively connected to and driven by the electronic circuitry and pivotally connected to the base member. The display includes a backside that is typically not handled by a user when the device is in use. A fuel cell unit is secured to the backside of the display and operatively connected to the electronic circuitry and display for powering the device. The anode of the fuel cell is juxtaposed at the backside of the display and the cathode is oriented outward from the backside facilitating unobstructed air breathing, evacuation of water and heat dissipation.

Abstract: A voltage converter including a transformer having a primary winding connected in series with a switch for cutting-up a supply voltage and having a secondary winding associated with a capacitor providing a D.C. low voltage, and a self-oscillating control circuit of the switch for detecting the end of the demagnetization of an auxiliary winding of the transformer, to turn the switch on, and for detecting the current in the on-state switch to turn it off when this current reaches a reference point. The reference point is made variable according to the voltage across the auxiliary winding.

Abstract: A voltage converter including a transformer having a primary winding connected in series with a switch for cutting-up a supply voltage and having a secondary winding associated with a capacitor providing a D.C. low voltage, and a self-oscillating control circuit of the switch for detecting the end of the demagnetization of an auxiliary winding of the transformer, to turn the switch on, and for detecting the current in the on-state switch to turn it off when this current reaches a reference point. The reference point is made variable according to the voltage across the auxiliary winding.