摘要:
A system includes: a hand-held tool battery, a hand-held tool battery charging device which has a battery accommodating area for accommodating the hand-held tool battery during an inductive charging operation, and a user interface which outputs an item of information about the charging operation.
摘要:
An operating mechanism for an electrical apparatus (10), in particular, for a hand-held machining tool, includes a storage (18, 20) for inputting of control data and/or a control program for controlling the electrical apparatus (10), as well as a control unit (16) connected with the storage (18, 20) for controlling the operation of the electrical apparatus (10) according to the stored control data or the stored control program. The storage (18, 20) in operation is re-writable, in order to enable the control program or the control data upon assembly to operate according to apparatus specifications or the control program or to adjust the control data during the operation. In addition, the invention relates to an electrical apparatus with the above-type of operating mechanism and a corresponding method of operation.
摘要:
A hand tool case holding device includes at least one charging coil, a case accommodating area and a holding device housing, which includes a first outer side facing toward the case accommodating area. The holding device housing includes at least one second outer side, (a) which, in at least one operating state, faces toward the case accommodating area, (b) which is aligned essentially perpendicularly to the first outer side, and (c) on which the charging coil is situated.
摘要:
A multivibrator circuit has one series circuit including a first resistance and a first capacitor and determining a first switching time, and another series circuit including a second resistance and a second capacitor and determining a second switching time, a potentiometer having an arm that establishes a first resistance subregion and a second resistance subregion of the potentiometer, wherein the first resistant subregion constitutes the first resistance and the second resistant subregion constitutes the second resistance; also there are provided an electric hand tool having an electric motor and the multivibration circuit that influences a delivery of power to the electric motor, a use of a multivibrator circuit for generating a pulse width modulated signal for triggering an electric motor of an electric hand tool, and a method for variably adjusting a first and a second switching time of the multivibrator circuit.
摘要:
The battery charging apparatus is made with small and low-cost components. It includes a first transistor (T1) with a control input through which the charging current flows into a battery (B) and a current source (T3, T4, R1, R2) for a control current flowing to the control input of the first transistor. The current source sets or adjusts the control current so that the first transistor is non-conducting or blocked and the charging current flowing into the battery is shut off when a predetermined maximum charging voltage is reached at the battery.
摘要:
An electric switch device for a machine tool has a switch-side contact element, that is held movably and is in contact, in a contact position, with a mating contact element so as to close a circuit. The switch-side contact element is a switching spring, which is acted upon by its internal stress to move into the out-of-contact position.
摘要:
A hand tool case holding device includes at least one charging coil, a case accommodating area and a holding device housing, which includes a first outer side facing toward the case accommodating area. The holding device housing includes at least one second outer side, (a) which, in at least one operating state, faces toward the case accommodating area, (b) which is aligned essentially perpendicularly to the first outer side, and (c) on which the charging coil is situated.
摘要:
A circuit arrangement (10) for detecting undervoltage in an energy source (12) includes a transistor switch (48) and at least one further switch element (30). The transistor switch (48) and the further switch element (30) are of low impedance in an operating state of the circuit arrangement (10). The transistor switch (48) blocks the further switch element (30) for interrupting the voltage supply if a supply voltage (U) of the energy source (12) is below a defined voltage value (Us).
摘要:
The battery charging apparatus is made with small and low-cost components. It includes a first transistor (T1) with a control input through which the charging current flows into a battery (B) and a current source (T3, T4, R1, R2) for a control current flowing to the control input of the first transistor. The current source sets or adjusts the control current so that the first transistor is non-conducting or blocked and the charging current flowing into the battery is shut off when a predetermined maximum charging voltage is reached at the battery.
摘要:
A cordless screwdriver, having a housing (12, 18) with a pistol grip (14) with an ON/OFF button (26) and a rechargeable battery (40) inserted into it, in particular fixedly and with charging contact tongues (37) associated with the battery (40), is made safer and more convenient by providing that by means of the toggle switch (26), extending in elongated fashion over the inside of the pistol grip (14) and in particular pivotably supported, a plurality of power circuits of the cordless screwdriver (10) are interruptable and closable over the actuation stroke of the toggle switch successively independently of one another.