Turnils Ab

Other

True Solar Autonomy Holding B.v.

Jochem Welvaadt

Anne Jurjen Osinga

Method of processing a digital audio input signal containing a sequence of input signal sample values, the method comprising:

Method and system for encoding and decoding of audio signals

The invention relates to a voltage converting circuit () having:&#x2014;an input terminal () for connection to a varying voltage or current source, and an output terminal () with a supply voltage,&#x2014;an inductive element () being with a first terminal connected to the input terminal and with a second terminal to a capacitive element () and to the output terminal (), the capacitive element () being with one terminal connected to a reference voltage (),&#x2014;a first switch () being with a first terminal connected to the second terminal of the inductive element (), and with a second terminal to the reference voltage (), the first switch () comprising a gate electrode () for opening and closing of the switch when a control voltage of a first level is applied to the gate,&#x2014;an oscillator () comprising a power input () connected to the output terminal (), a start-up output () connected to the gate electrode () of the first switch () for supplying a pulse-like signal to the gate electrode () and an oscillator output (), and&#x2014;a second switch () connected in parallel with the first switch (), the second switch having a gate electrode () connected to the oscillator output (), wherein the first switch () remains opened when the supply voltage at the output terminal () reaches a predetermined level, and the second switch () is operated by the oscillator output () at a second voltage level that is higher than the first voltage level.

Voltage converting circuit having parallel connected switching devices

An electrically-operated architectural covering that can be powered by a low current or voltage source includes a motor, an accumulator connected to the motor, a power source, and an electrical circuit connecting the power source to the accumulator. The electrical circuit includes a step-up converter, which preferably includes an input terminal connected to the power source; an output terminal with a supply voltage connected to the accumulator; an inductive element; a first switch having a gate electrode for opening and closing of the switch when a control voltage of a first level is applied to the gate; and an oscillator.

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Amsterdam, Netherlands

Jochem Welvaadt