摘要:
A circuit including Hall plates and an amplifier. The Hall plates are configured to provide Hall voltages in a homogenous magnetic field such that a first Hall plate has a first positive voltage and a first negative voltage and a second Hall plate has a second positive voltage and a second negative voltage. The amplifier is configured to receive the Hall voltages and provide a first output voltage that corresponds to the first positive voltage and the second positive voltage and a second output voltage that corresponds to the first negative voltage and the second negative voltage.
摘要:
A circuit including Hall plates and an amplifier. The Hall plates are configured to provide Hall voltages in a homogenous magnetic field such that a first Hall plate has a first positive voltage and a first negative voltage and a second Hall plate has a second positive voltage and a second negative voltage. The amplifier is configured to receive the Hall voltages and provide a first output voltage that corresponds to the first positive voltage and the second positive voltage and a second output voltage that corresponds to the first negative voltage and the second negative voltage.
摘要:
The inventive device for evaluating the sensor signal includes the provider for providing the sensor signal, the processor for processing the sensor signal and for providing an information signal comprising information regarding the amplitude course of the sensor signal and means for comparing the sensor signal to a first and a second comparison value, wherein the first and/or the second comparison value are adjustable based on the information signal such that a difference between the first and the second comparison value comprises a non-linear relation to the amplitude course of the sensor signal.
摘要:
The invention is direct to a comparator circuit that maps an analog input signal into a digital output signal and comprises a threshold as well as an upper and a lower hysteresis threshold. Given transgression of the upper or lower hysteresis threshold by the analog input signal, at least one unlatch signal is formed that enables the switching of the digital output signal when the analog input signal upwardly transgresses the threshold. Independently of at least one unlatch signal, the digital output signal is inventively switched when the analog input signal transgresses the upper or lower hysteresis threshold.
摘要:
A system for capacitive object recognition including a pair of electrodes, one of the electrodes having an adjustable parameter, and a controller modeling current pathways formed by interaction of an object with an electric field between the pair electrodes as a network of capacitors. The controller is configured to set the adjustable parameter to a first setting and to apply a set of alternating current voltages to the pair electrodes and measure a resulting first set of current values at each of the electrodes, configured to set the adjustable parameter to a second setting and apply the set of alternating current voltages to the pair of electrodes and measure a resulting second set of current values at each of the electrodes, and configured to determine values for up to all capacitors of the network of capacitors based on the first and second sets of current values.
摘要:
A phase locked loop (PLL) circuit includes a first signal detector having a first input terminal configured to receive a varying first input signal, a second input terminal configured to receive a feedback signal that corresponds to the center of the input frequency, and an output terminal configured to provide an output signal corresponding to a phase difference between the first input and feedback signals. A delay estimator has an input terminal configured to receive the output signal from the first phase detector and in response thereto, output a phase difference estimation signal. A variable delay circuit has an input terminal configured to receive the phase difference estimation signal and in response thereto, phase shift the second input signal.
摘要:
A system includes a capacitive sensor including a first electrode and a second electrode. The system includes a measurement system configured to sense a capacitance between the first electrode and the second electrode and apply a first offset to the sensed capacitance to provide an offset compensated capacitance.
摘要:
The inventive device for evaluating the sensor signal includes the provider for providing the sensor signal, the processor for processing the sensor signal and for providing an information signal comprising information regarding the amplitude course of the sensor signal and means for comparing the sensor signal to a first and a second comparison value, wherein the first and/or the second comparison value are adjustable based on the information signal such that a difference between the first and the second comparison value comprises a non-linear relation to the amplitude course of the sensor signal.
摘要:
A system includes a capacitive sensor including a first electrode and a second electrode. The system includes a measurement system configured to sense a capacitance between the first electrode and the second electrode and apply a first offset to the sensed capacitance to provide an offset compensated capacitance.
摘要:
A system includes a first circuit configured to convert a first analog signal to a first digital signal. The system includes a second circuit configured to determine an area of the first digital signal above a set value and an area of the first digital signal below the set value to provide a second digital signal indicating an offset of the first analog signal.