A portable drilling device or screw driving device, including: an electric motor; an autonomous or wired electric supply to the motor; an actuating trigger; a controller, which commands the motor as a function of the position of the trigger; the trigger being mobile between at least: a resting position in which the motor is at a stop; a position of total actuation in which the motor is driven by the controller according to a first predetermined rotation frequency; wherein the trigger can take a predetermined intermediate position is situated between the resting and actuating positions and the motor being driven by the controller according to a second predetermined rotation frequency. An elastic return counters movement of the trigger from the resting position towards the position of total actuation, and a first fixed magnetic attraction counters movement of the trigger between the intermediate position and the position of total actuation.

A wine bottle fixing device including a cylindrical body, a sliding component slidably disposed at the cylindrical body, and a first sensing component is provided. The cylindrical body surrounds an accommodating space and has an opening. The wine bottle is adapted to be inserted into the accommodating space through the opening. The sliding component is adapted to slide between a first position and a second position along an axis. The first sensing component includes a first sensor and a first sensed component. One of the first sensor and the first sensed component is disposed on the sliding component, and the other is located beside the opening. The first sensor is adapted to detect the first sensed component when the sliding component is at the first position and close to the opening. When the bottle neck portion of the wine bottle is inserted into the cylindrical body, the wine bottle pushes the sliding component from the first position to the second position, so that a sensed value of the first sensor sensing the first sensed component is changed. A wine cabinet is also provided.

A gearbox operating system shifts between 2-wheel and 4-wheel drive. The system includes a reversible motor, and a reduction gear train that is configured to be driven by the motor to move a plunger between extended and retracted plunger positions that shifts gears. A printed circuit board has at least two Hall effect sensing circuits. A magnet is carried by the reduction gear train and is rotationally movable relative to the Hall effect sensing circuits. A first Hall effect sensing circuits provides a first output signal indicative of the extended plunger position. A second Hall effect sensing circuits provides a second output signal that is indicative of the retracted plunger position. A controller monitors the two Hall effect sensing circuits to determine if a desired plunger position has been achieved and trigger an error code if the desired plunger position has not been achieved within a predetermined response time.

A wireless light board is disclosed herein. The present invention comprises a baseplate, a backlight module, a power module, a magnet sensor module, a control module, at least one bottom cover, and a top cover. The baseplate has a recess and a power source accommodation hole to respectively accommodate the backlight module and the power module. The control module is arranged on a circuit board and electrically connected with the backlight module and the magnet sensor module to turn on/off the backlight module. The bottom cover removably covers the power source accommodation hole. The top cover covers at least the backlight module and the power module and has a first light-permeable region above the backlight module. Thereby, the wireless light board is slim, waterproof, power-saving, easy to install, and convenient for battery replacement.

The present invention provides a magnet-type sensing module, comprising a control circuit and at least one signal generating component, wherein the control circuit is provided with a processing unit, a magnetic sensing unit and a magnetic element. An induced magnetic field of the magnetic sensing unit senses a magnetic change of the magnetic element to generate a first voltage change value or a second voltage change value to the processing unit, and the processing unit respectively generates an output activate voltage or an output turn-off voltage to the signal generating component to generate an output signal or turn off an output signal to solve the problems of inconvenient installation and accurate alignment of the installation location in the prior art, thereby achieving efficacies of convenient installation and effective induction of generating output signals.

The present invention provides a magnet-type sensing module, comprising a control circuit and at least one signal generating component, wherein the control circuit is provided with a processing unit, a magnetic sensing unit and a magnetic element. An induced magnetic field of the magnetic sensing unit senses a magnetic change of the magnetic element to generate a first voltage change value or a second voltage change value to the processing unit, and the processing unit respectively generates an output activate voltage or an output turn-off voltage to the signal generating component to generate an output signal or turn off an output signal to solve the problems of inconvenient installation and accurate alignment of the installation location in the prior art, thereby achieving efficacies of convenient installation and effective induction of generating output signals.

A gearbox operating system shifts between 2-wheel and 4-wheel drive. The system includes a reversible motor, and a reduction gear train that is configured to be driven by the motor to move a plunger between extended and retracted plunger positions that shifts gears. A printed circuit board has at least two Hall effect sensing circuits. A magnet is carried by the reduction gear train and is rotationally movable relative to the Hall effect sensing circuits. A first Hall effect sensing circuits provides a first output signal indicative of the extended plunger position. A second Hall effect sensing circuits provides a second output signal that is indicative of the retracted plunger position. A controller monitors the two Hall effect sensing circuits to determine if a desired plunger position has been achieved and trigger an error code if the desired plunger position has not been achieved within a predetermined response time.

A magnetic switch sensor is provided having a magnetic field sensing element configured to generate a magnetic field signal in response to a magnetic field indicative of a distance or angle between the magnetic field sensing element and a target, a first circuit coupled to receive the magnetic field signal and having an output to provide a comparison signal, and a debounce circuit coupled to receive the comparison signal and having an output to provide a debounced signal. The sensor can include a second circuit having an input coupled to receive the debounced signal and an output at which is provided a toggle signal that transitions between first and second levels every other time the magnetic field signal crosses a threshold level.

A magnetic sensor circuit includes a first type electromagnetic conversion element which supplies antiphase signals corresponding to the intensity of a magnetic field in a first direction, a second type electromagnetic conversion element which supplies antiphase signals corresponding to the intensity of a magnetic field in a second direction, a switch circuit which controls a current supplied from a current source to the first and the second type electromagnetic conversion elements, and a common mode feedback circuit which determines a midpoint voltage between the first and the second type electromagnetic conversion elements. The common mode feedback circuit performs a feedback operation to thereby set an output common voltage of the first type electromagnetic conversion element higher than the preset reference voltage and set an output common voltage of the second type electromagnetic conversion element lower than the preset reference voltage.

The invention relates to a proximity magnetic induction switch control chip and a control method thereof. A proximity magnetic induction switch control chip includes a voltage regulator module, a control module, an output type detection module, a first controllable switch and a second controllable switch. An output type detection module detects proximity magnets. An output type detection module detects a load connected between a voltage input and a signal output of a proximity magnetic induction switch control chip or a load connected between a signal output and a ground terminal. The detection result is transmitted to the control module. The control module controls the first controllable switch or the second controllable switch to actuate the load according to the detection result.