Abstract: A lighting device for a motor vehicle, wherein the lighting device has a circuit board with a multiplicity of light-emitting diodes arranged thereon, a transparent optical layer, and a reflector element, wherein the reflector element is arranged between the circuit board and the optical layer, wherein the reflector element has multiple segments into which the reflector element is subdivided, wherein a segment is associated with each light-emitting diode so that light emitted by the light-emitting diodes can be reflected by the reflector element and can pass through the optical layer. Two light-emitting diodes are arranged in a segment. In addition, a lighting system and a motor vehicle are provided.

Abstract: A child-proof discharger for media includes a reservoir, a pump part mounted on the reservoir and an actuable discharge portion mounted on the pump part. The discharge portion guided in an axially displaceable manner on a carrier part disposed on the closure element and can be locked with the aid of manually actuable spring bars. The spring bars are configured on an actuating plate configured on the discharge portion, and respectively have an inner tongue, which can be bent radially inwards relative to an inner wall of the carrier part. Each spring bar is respectively assigned a guide ramp as an entry curve to a contact area that is bounded by radial latches of the blocking setting upon a rotary motion of the discharge portion.

Abstract: A circuit arrangement for protection against an undue overheating of a charging control, discharging control and/or a secondary battery is disclosed, the circuit arrangement comprising the secondary battery, the charging and/or discharging control for charging and/or discharging the secondary battery, a connector for connecting the charging and discharging control to an external power supply, at least one current limiting electronic component arranged in electrical connection to the charging and/or discharging control and optionally, a switchable load.

Abstract: An electrical circuit for charging a secondary battery that comprises a dc-converter and an output connector that can be connected to the positive terminal of the secondary battery for applying a charging current to the secondary battery. The dc-converter has a voltage feedback connector for sensing a feedback voltage, wherein the dc-converter is adapted to regulate the output voltage by adjusting the output current at the output connector depending on the sensed feedback voltage and a feedback-sub-circuit connected to the output connector and to the voltage feedback connector of the dc-converter.

Abstract: A child-proof discharger for media includes a reservoir, a pump part mounted on the reservoir and an actuable discharge portion mounted on the pump part. The discharge portion guided in an axially displaceable manner on a carrier part disposed on the closure element and can be locked with the aid of manually actuable spring bars. The spring bars are configured on an actuating plate configured on the discharge portion, and respectively have an inner tongue, which can be bent radially inwards relative to an inner wall of the carrier part. Each spring bar is respectively assigned a guide ramp as an entry curve to a contact area that is bounded by radial latches of the blocking setting upon a rotary motion of the discharge portion.

Abstract: Child-proof discharger for media, comprising a reservoir (1), a pump part (3), mounted on the reservoir (1) in sealed arrangement via a closure element (2), for pumping medium out of the reservoir (1), an actuable discharge portion (4), which is mounted on the pump part (3) and which is guided in an axially displaceable manner on a carrier part (5) assigned to the closure element (2) in order to execute a lifting motion for the delivery of medium and can be locked with the aid of manually actuable spring bars (12) in at least one blocking setting, wherein the spring bars (12) are configured on an actuating plate (16) configured on the discharge portion (4), and respectively have an inner tongue, which can be bent radially inwards and to which, on an inner wall of the carrier part (5), is respectively assigned a guide ramp as an entry curve to a contact area, bounded by radial latches, of the blocking setting upon a rotary motion of the discharge portion (4).

Abstract: An electrical circuit for charging a secondary battery that comprises a dc-converter and an output connector that can be connected to the positive terminal of the secondary battery for applying a charging current to the secondary battery. The dc-converter has a voltage feedback connector for sensing a feedback voltage, wherein the dc-converter is adapted to regulate the output voltage by adjusting the output current at the output connector depending on the sensed feedback voltage and a feedback-sub-circuit connected to the output connector and to the voltage feedback connector of the dc-converter.

Abstract: A circuit arrangement for protection against an undue overheating of a charging control, discharging control and/or a secondary battery is disclosed, the circuit arrangement comprising the secondary battery, the charging and/or discharging control for charging and/or discharging the secondary battery, a connector for connecting the charging and discharging control to an external power supply, at least one current limiting electronic component arranged in electrical connection to the charging and/or discharging control and optionally, a switchable load.

Abstract: Child-proof discharger for media, comprising a reservoir (1), a pump part (3), mounted on the reservoir (1) in sealed arrangement via a closure element (2), for pumping medium out of the reservoir (1), an actuable discharge portion (4), which is mounted on the pump part (3) and which is guided in an axially displaceable manner on a carrier part (5) assigned to the closure element (2) in order to execute a lifting motion for the delivery of medium and can be locked with the aid of manually actuable spring bars (12) in at least one blocking setting, wherein the spring bars (12) are configured on an actuating plate (16) configured on the discharge portion (4), and respectively have an inner tongue, which can be bent radially inwards and to which, on an inner wall of the carrier part (5), is respectively assigned a guide ramp as an entry curve to a contact area, bounded by radial latches, of the blocking setting upon a rotary motion of the discharge portion (4).

Abstract: Implementations of a method for determining a degree of dirtiness of a cutting tool that is driven in a back and forth motion by an electric motor include evaluating a parameter that corresponds to the motion of the cutting tool and that is used for controlling the electric motor. The degree of dirtiness is determined based on the parameter.

Abstract: A circuit arrangement for the inductive transfer of energy is disclosed. The circuit arrangement includes an oscillator; and a device for detecting the load of the oscillator and for setting the circuit arrangement into one of multiple operating states depending on the detected load. The device determines the load of the oscillator using an electrical variable occurring in the oscillator.

Abstract: A method and a circuit arrangement for the inductive transfer of energy with an oscillator and a device to detect the inductive load of the oscillator, and to modify a damping element in the oscillator depending on the load of said oscillator.

Abstract: A circuit arrangement for the inductive transfer of energy is disclosed. The circuit arrangement includes an oscillator; a power supply for supplying the oscillator with energy and having a complex input resistance; and a device for detecting the inductive load of the oscillator and for modifying the complex input resistance of the power supply depending on the load of the oscillator.

Abstract: A circuit arrangement for the inductive transfer of energy is disclosed. The circuit arrangement includes an oscillator; and a device for detecting the load of the oscillator and for setting the circuit arrangement into one of multiple operating states depending on the detected load. The device determines the load of the oscillator using an electrical variable occurring in the oscillator.

Abstract: A circuit arrangement for the inductive transfer of energy is disclosed. The circuit arrangement includes an oscillator; a power supply for supplying the oscillator with energy and having a complex input resistance; and a device for detecting the inductive load of the oscillator and for modifying the complex input resistance of the power supply depending on the load of the oscillator.

Abstract: The invention pertains to a method for determining the dirtiness of a cutting tool and to a hair cutting device with an apparatus for determining the dirtiness of the cutting tool thereof. The method is intended for cutting tools that carry out a back and forth motion and are driven by an oscillating electric motor or linear motor. In order to determine the dirtiness in accordance with said method, a parameter is evaluated that is correlated with the respective state of motion of the cutting tool and used for controlling the oscillating electric motor or linear motor. Parameter changes are continuously measured and cause a dirtiness counter to count up if the parameter value exceeds at least one threshold value. The fact that the count of the dirtiness counter has reached or exceeds a reference value is then conventionally indicated.

Abstract: A method and a circuit arrangement for the inductive transfer of energy with an oscillator and a device to detect the inductive load of the oscillator, and to modify a damping element in the oscillator depending on the load of said oscillator.

Abstract: An induction charging device for charging an energy accumulator of a mobile electric device is provided. The device includes a coil for energy transmission; and a control for energy transmission. The control is connected to a capacitor with a modifiable capacitance, and the capacitor is designed such that its capacitance changes as a function of whether the mobile electric device is in a charging position or not.

Abstract: Manual piston pump having a blockable dispensing head for dispensing fluid substances, having a cylinder, an inner locking sleeve forming a cylindrical passage for a hollow piston rod to pass through, one end of this extending into a pump chamber of the cylinder and the other end carrying the dispensing head, which is provided with an outer shaft section, a spring which presses the piston rod outwards in relation to the cylinder, into a rest position, and in opposition to the spring force whereof the piston rod may be lowered by pressing on the dispensing head in order to dispense substance, and having a means for blocking the dispensing head, this means including at least one locking element which may be brought into engagement with the locking sleeve, in which, together with the piston rod (6), the locking sleeve (5) forms an inner cage (18) for receiving the spring (19), which is supported at one end against a base (20) of the locking sleeve (5) and at the other against the locking element (21) provided on