76results about How to "Interrupt supply" patented technology

In an electric power tool and a method for operating an electric power tool, a torque limitation of an electric motor reacts when a load moment exceeds a predetermined threshold and in which an output request is carried out by means of a switch. A supply of current to the motor is interrupted when a criterion for the reaction of the torque limitation is detected based on a speed detection of the motor.

A semiconductor circuit capable of controlling and holding the threshold voltage of a transistor at an optimal level and a driving method thereof are disclosed. A storage device, a display device, or an electronic device including the semiconductor circuit is also provided. The semiconductor circuit comprises a diode and a first capacitor provided in a node to which a transistor to be controlled is connected through its back gate. This structure allows the application of desired voltage to the back gate so that the threshold voltage of the transistor is controlled at an optimal level and can be held for a long time. A second capacitor connected in parallel with the diode is optionally provided so that the voltage of the node can be changed temporarily.

The invention relates to an electromechanical wheel brake device, with an electric motor that can press a frictional brake lining against a brake body (brake disk) by a reduction gear (planetary gear) and a rotation / translation conversion gear (ball screw). The invention proposes embodying the electric motor as a transverse flux motor with three phase windings; each phrase winding has a circular, annular excitation winding that is disposed inside U-shaped yokes, which are distributed over the circumference of the excitation winding. This embodiment of the electric motor permits a compact design of the electric motor in an annular, hollow shaft design so that the reduction gear and the rotation / translation conversion gear can be disposed at least partially inside the electric motor.

A hydraulically operated vertical vehicle lift for working under the vehicle or for storing one vehicle over a second vehicle. The vehicle lift utilizes four large U-shaped columns which house most of the moving parts. Particularly, cables traverse through the columns and around pulleys attached to cross members supporting the vehicle ramps. A hydraulic cylinder under a ramp pulls the cables around the pulleys causing the cross members and ramps to elevate. The orientation of the cables and pulleys direct the force generated while elevating and suspending a vehicle straight down from the internal top center of each column. This directional force provides a stable vehicle lift and the columns and ramps shield the moving parts from operator contact and protect the parts from exposure thereby increasing their useful life of the lift.

In an electric power tool and a method for operating an electric power tool, a torque limitation of an electric motor reacts when a load moment exceeds a predetermined threshold and in which an output request is carried out by means of a switch. A supply of current to the motor is interrupted when a criterion for the reaction of the torque limitation is detected based on a speed detection of the motor.

When an operational mode is shifted to a standby mode, a first transistor is brought into a conduction state by a control signal, and a word line is thereby clamped to a ground voltage. Further, a second transistor is brought into a non-conduction state, and supply of an internal power supply voltage to a word line driver is shut off. Subsequently, the supply of the internal power supply voltage is halted for saving electrical power. When the operational mode returns to a normal mode, the supply of the internal power supply voltage is started, and subsequently, the first transistor is brought into the non-conduction state by the control signal, and the second transistor is thereby brought into the conduction state.

Disclosed a system and method of lengthening a life span of a battery power supply in an appliance such as a portable appliance, notebook computer or the like. A power saving method in an appliance includes displaying a user set-up menu for a power saving on a screen by respectively checking systems in the appliance, outputting a control command to a micro-controller in accordance with power saving contents determined on the user set-up menu by a user, and executing a power saving program set up by the user in accordance with the control command of the micro-controller.

An interlock device includes an upper lid provided such that an inverter unit cannot be exposed and having a shape accommodating a housing, an interlock detecting terminal electrically connected to the housing when being in contact therewith and electrically disconnected from the housing when losing contact therewith, a bolt for fixing the upper lid to the housing, and a bracket for restricting a motion of the bolt for removal of the upper lid when the interlock detecting terminal is in contact with the housing.

The invention concerns a hydraulic steering (1) with a steering valve (7) located between a supply connection arrangement (P, T) and a steering motor (2). It is endeavored to improve the safety of such a steering. For this purpose, the steering valve (7) has a hydraulic drive (9, 10) with a pilot valve arrangement (11) supplied by a pressure control valve (5), a stop valve (16) being located between the pressure control valve (5) and the pilot valve arrangement (11).

The invention relates to a method and an arrangement for counteracting inappropriate manual gearshifts in predetermined vehicle conditions by way of a gearshift control in a stage-geared transmission, arranged in a motor vehicle and having a shift servo for intensifying the shifting force applied to the gearshift control. In the case of a pneumatic or hydraulic shift servo the control unit is designed to interrupt the energy supply to the shift servo by closing a valve. The shifting force applied to the gearshift control can be measured, the level of the output force from the shift servo being determined as a function of the measured shifting force applied.

A temperature sensor is disclosed comprising a sensor element having a temperature-dependent resistance that is enclosed with a tube. In one embodiment, the tube is a quartz glass tube. In another embodiment the temperature sensor is a conventional halogen lamp, designed for use as a light source. The temperature sensor can be advantageously to precisely measure temperatures in a radiant heater, such as that present in a electric cooking appliance.

A beverage maker (1) comprises a boiler (30) for containing and heating water and a normally opened thermostat (63) having a sensing member (63a) for sensing a temperature of the water, wherein the sensing member (63a) is located at a certain distance with respect to a water inlet (34) of the boiler (30). When the water is heated, and the temperature of the water exceeds a set point of the thermostat (63), the thermostat (63) closes. As a result, a pumping action is started, wherein hot water is forced to flow out of the boiler (30), and wherein cold water is forced to flow into the boiler (30). When a front of the cold water reaches the sensing member (63a) of the thermostat (63), the thermostat (63) is triggered to open again, and the pumping action is terminated. By means of the thermostat (63), the quantity of hot water that is used for the purpose of making a beverage is accurately controlled.

A braking apparatus is provided for braking the rotating part of a hoisting machine. The braking apparatus includes one or more brakes, which contain altogether at least one movable brake shoe, spring elements for activating the brake by moving the brake shoe forward, at least two electromagnets, which, when magnetized by a magnetizing current, apply a force of attraction to bodies conducting magnetic flux. The electromagnets are fitted to release the brake by pulling the brake shoe backwards by resisting the spring elements. The brake is fitted to be activated by reducing the magnetizing current of the electromagnet. The braking apparatus includes a power supply circuit for the electromagnets, which contains controllable power supply interrupting devices. The electromagnets are connected to the power supply circuit in such a way that the supply of magnetizing current to each electromagnet can be interrupted by means of at least two different interrupting devices.

Damage is prevented on electric devices in a case where a generator is installed in a cold weather. A wind turbine generator includes a power supply unit connected to a utility grid via a switch gear; a utility grid voltage measuring unit provided between the power supply unit and the utility grid, for measuring a voltage of the utility grid; and a temperature measuring unit for obtaining an ambient temperature of the power supply unit. In a case where a measurement value of the temperature measuring unit or an ambient temperature of the power supply unit estimated based on the measurement value is smaller than a first temperature threshold determined based on a function guarantee temperature of the power supply unit and the voltage measured by the utility grid voltage measuring unit is smaller than a preset voltage threshold, the switch gear operates to interrupt the connection between the power supply unit and the utility grid.

A diversity receiving device includes a processing circuit in which receiving units, AFC and synchronizing units, and demodulating units for a plurality of systems are connected, received signal intensity detecting units 104 and 105 that detect the intensities of output signals of the respective receiving units so as to output reception intensity detection signals, a control unit that determines to select one system as a synthesis pattern of demodulation signals based on a predetermined judgment criterion according to the respective reception intensity detection signals or to select a plurality of systems so as to add demodulation signals and outputs a plurality of clock interruption control signals requesting the interruption of a clock supply to unselected systems and synthesis pattern selection signals designating a synthesis pattern of demodulation signals of the selected system, a plurality of clock supply units that interrupt the clock supply to the AFC and synchronizing units and the demodulating units of the unselected systems according to the clock interruption control signal, and a synthesizing unit that synthesizes demodulation signals of the selected system according to the synthesis pattern selection signals.