摘要:
The invention relates to a piezoelectric sensor which comprises a piezoelectric measuring transducer, an amplifier circuit and also at least one connection for external current or signal lines, these elements being integrated on or in a carrier structure. The sensor thereby enables measurement under different temperature conditions. The piezoelectric sensor according to the invention is used for oscillation, acceleration or deflection measurement, in particular in mechanical engineering, in air and space travel or in the automobile industry.
摘要:
The present invention provides a voltage converter circuit for the clocked supply of energy to an energy storage based on an input voltage applied at an input applied at an input of the voltage converter circuit. The voltage converter circuit includes an energy storage and a switch arrangement, wherein the switch arrangement has a first switch and a second switch which are connected in parallel to each other and coupled to the energy storage. The first switch of the switch arrangement has a smaller turn-on voltage according to amount than the second switch, wherein a control terminal of the first switch is wired up such that the first switch is active in a startup phase of the voltage converter circuit to supply energy to the energy storage, and wherein a control terminal of the second switch is wired up such that the second switch is active after the startup phase to supply energy to the energy storage in a clocked way. Further, the voltage converter circuit has a feedback circuit which is implemented to provide a feedback signal depending on a change of the energy stored in the energy storage or depending on an amount of energy stored in the energy storage, wherein the feedback circuit has a switchable coupling element which is implemented to couple the feedback signal to the control terminal of the second switch, and wherein the switchable coupling element is implemented to provide a stronger coupling effect in a startup phase than after the startup phase.
摘要:
The present invention provides a voltage converter circuit for the clocked supply of energy to an energy storage based on an input voltage applied at an input applied at an input of the voltage converter circuit. The voltage converter circuit includes an energy storage and a switch arrangement, wherein the switch arrangement has a first switch and a second switch which are connected in parallel to each other and coupled to the energy storage. The first switch of the switch arrangement has a smaller turn-on voltage according to amount than the second switch, wherein a control terminal of the first switch is wired up such that the first switch is active in a startup phase of the voltage converter circuit to supply energy to the energy storage, and wherein a control terminal of the second switch is wired up such that the second switch is active after the startup phase to supply energy to the energy storage in a clocked way. Further, the voltage converter circuit has a feedback circuit which is implemented to provide a feedback signal depending on a change of the energy stored in the energy storage or depending on an amount of energy stored in the energy storage, wherein the feedback circuit has a switchable coupling element which is implemented to couple the feedback signal to the control terminal of the second switch, and wherein the switchable coupling element is implemented to provide a stronger coupling effect in a startup phase than after the startup phase.
摘要:
The present invention provides a voltage converter circuit for the clocked supplying of energy to an energy storage, based on an input voltage present at an input of the voltage converter circuit. The voltage converter circuit comprises an energy storage and a switch assembly, the switch assembly comprising a first switch and a second switch connected in parallel and coupled to the energy storage. The first switch of the switch assembly exhibits, according to magnitude, a smaller turn-on voltage than the second switch, wherein a control terminal of the first switch is switched such that the first switch is active in a starting phase of the voltage converter circuit in order to supply the energy storage with energy, and wherein a control terminal of the second switch is switched such that the second switch is active after the starting phase in order to supply the energy storage with energy in a clocked manner.
摘要:
An apparatus for converting and storing energy, which includes a plurality of various energy converters for converting energy, which is present in various forms of energy, to electrical energy. The apparatus further includes an energy store for storing the electrical energy and an interface for outputting the energy to a consumer.
摘要:
A control circuit according to an embodiment of the present invention for a DC-DC converter which has an input, an output and a series connection of a differentiator, a comparator unit, and an integrator. The series connection is coupled in between the input and the output. The comparator unit has an inverting amplifier.
摘要:
A potential converter device with a first storage capacitor implemented to be supplied with energy from an energy source to acquire a first potential form at the first storage capacitor, and a second storage capacitor implemented to be supplied with energy from the first storage capacitor to acquire a second potential form at the second storage capacitor. The potential converter device further has a converter electrically connected between the first and second storage capacitors and implemented to execute an energy transmission from the first storage capacitor to the second storage capacitor if the first potential form reaches a first potential threshold value and until the first potential form reaches a second potential threshold value, wherein the first potential threshold value is greater regarding its magnitude than the second potential threshold value.
摘要:
A control circuit according to an embodiment of the present invention for a DC-DC converter which has an input, an output and a series connection of a differentiator, a comparator unit, and an integrator. The series connection is coupled in between the input and the output. The comparator unit has an inverting amplifier.
摘要:
An amplifier for an input signal Sin, present at an input terminal, with a gain factor adjustable by a control terminal, so as to provide the amplified input signal Sin′ at an output terminal. A decoupler is connected to the amplifier on the output side and provides a decoupling signal Sactual which depends on the amplified input signal Sin′. The decoupling signal Sactual is processed in an analog manner, and a prepared signal Sactual′ is provided which is a measure of the actual output power. Comparing the prepared signal Sactual′ to a target value Starget in an analog manner yields a comparison signal Scontrol controlling the gain factor, and a target value Starget is a measure of the target power of the amplified input signal Sin′. The processor is implemented to create a predetermined ratio between the target power and the actual power.
摘要:
A potential converter device with a first storage capacitor implemented to be supplied with energy from an energy source to acquire a first potential form at the first storage capacitor, and a second storage capacitor implemented to be supplied with energy from the first storage capacitor to acquire a second potential form at the second storage capacitor. The potential converter device further has a converter electrically connected between the first and second storage capacitors and implemented to execute an energy transmission from the first storage capacitor to the second storage capacitor if the first potential form reaches a first potential threshold value and until the first potential form reaches a second potential threshold value, wherein the first potential threshold value is greater regarding its magnitude than the second potential threshold value.