Micro-beam Sa

Felco Motion Sa

Simon Tinguely

Thierry A Bieler

Christian R Koechli

Christian Fleury

Laurent Cardoletti

Fabien Golay

Jordan Charpilloz

Jeroen Koeller

Nicolas Müller

Yves Rothenbühler

An electrically assisted street scooter includes a handlebar, a deck, front and back wheels, a battery pack integral with the deck, an electrical motor for driving at least one of the wheels, and a drive circuit for controlling electrical supply to the electrical motor from the battery pack. The drive circuit includes a switch for setting the drive circuit in a low power-mode where the electrical motor is not powered when the switch is off, or for setting the drive circuit in a drive mode where the electrical motor can be powered when the switch is on. An auto-power on circuit automatically switches the switch on when a user pushes the street scooter. An auto-power off circuit automatically switches the switch off when the scooter is not used during a predetermined duration. The level of electrical assistance is determined based on the peak value after each leg push.

Electrically assisted street scooter

A power hand tool comprises a trigger (), a motor (), a blade () driven by the motor (), and electronic circuit () for controlling the angular position or the speed of the motor () on the basis of the instantaneous position of the trigger (). The electronic circuit () is arranged to detect a predefined movement sequence of the trigger () and to execute a function in response to the detection of such a sequence.

Handheld power tool

A system for contactless transmission of energy and control signals between a primary device and a secondary device. The primary device has a primary set with at least one primary coil and an electronic supply driver for supplying primary signals to the primary set of primary coils. A secondary device has a secondary set with at least one secondary coil, at least one piezoelectric actuator, and electronic components including a resonant circuit powered by the secondary set. The piezoelectric actuator is powered and controlled through the secondary set of secondary coils and the electronic components.

System comprising a secondary device with a piezoelectric actuator wirelessly supplied and controlled by a primary device

Method for determining the position of a rotor in a brushless motor or in a stepper motor, said method including the following steps: applying a voltage in at least one powered phase of the motor; measuring, in an unpowered phase of the motor, the voltage induced by mutual inductance between phases; and determining said position and/or the speed of the rotor from said induced voltage.

Method and arrangement for determining the position of a rotor in a brushless motor or in stepper motor

An apparatus for powering an electric hand-held power tool device by an output voltage includes at least two connectors for connecting the apparatus to at least two batteries. At least two switches, and a command circuit of the switches, are provided. The command circuit is arranged for commanding the powering of the electric hand-held power tool device by using the battery which presents the highest open circuit voltage if the output voltage is higher than the open circuit voltage of each of the other batteries. And, by using the battery which presents the highest open circuit voltage and at least one other battery if the output voltage is lower than the open circuit voltage of the other battery, the battery which presents the highest open circuit voltage and the at least one other battery being connected in parallel.

Growing community of inventors

Lausanne, Switzerland

Simon Tinguely