摘要:
A method for extended-pulse sampling includes providing a continuous-time signal comprising a frequency spectrum within a predetermined passband. The continuous time signal is sampled with a plurality of discrete sample pulses having a pulse shape in a time domain that is an impulse response of a filter having the predetermined passband. The plurality of discrete time samples of the continuous-time signal is then provided to an output.
摘要:
The present disclosure discloses a method and device for sampling a pulse signal, and a computer program medium. The method comprises: collecting a plurality of first sampling points on a rising edge portion of the pulse signal according to a plurality of preset sampling thresholds, where each of the plurality of first sampling points is represented by one of the preset sampling thresholds and first time corresponding to the one of the preset sampling thresholds (S1); collecting a plurality of second sampling points on a falling edge portion of the pulse signal according to the plurality of preset sampling thresholds, where each of the second sampling points is represented by one of the preset sampling thresholds and second time corresponding to the one of the preset sampling thresholds (S2); and collecting a third sampling point of the pulse signal at third time separated from the first or second time by a preset time interval, where the third sampling point is represented by the third time and a response amplitude corresponding to the third time (S3). By using the technical solutions provided by the present disclosure, it can improve the sampling efficiency of the pulse signal and reduce energy consumption.
摘要:
A method comprising: receiving a first current measurement that is taken at a first predetermined time instant; receiving a second current measurement that is taken at a second predetermined time instant; classifying the first current measurement as corresponding to one of a plurality of electrical signals, the first current measurement being classified based, at least in part, on a duty cycle pattern of the plurality of electrical signals; classifying the second current measurement as corresponding to another one of the plurality of electrical signals, the second current measurement being classified based, at least in part, on the duty cycle pattern of the plurality of electrical signals; and adjusting a duty cycle of at least one of the electrical signals based on the first current measurement, the classification of the first current measurement, the second current measurement, and the classification of the second current measurement.
摘要:
A MEMS device may output a signal during operation that may include an in-phase component and a quadrature component. An external signal having a phase that corresponds to the quadrature component may be applied to the MEMS device, such that the MEMS device outputs a signal having a modified in-phase component and a modified quadrature component. A phase error for the MEMS device may be determined based on the modified in-phase component and the modified quadrature component.
摘要:
Methods and apparatus embodiments to communicate data via a digital isolator by receiving an input data stream having first and second states, generating a first pulse train for the first state and a second pulse train for the second state. The first and second pulse types are transmitted across a voltage barrier of a digital signal isolator and received by a receive channel. The first and second pulse trains are processed to recover the input data stream in an output data stream. Data/System integrity functionality can identify fault conditions from an alteration of transmitted pulses.
摘要:
Methods and apparatus embodiments to communicate data via a digital isolator by receiving an input data stream having first and second states, generating a first pulse train for the first state and a second pulse train for the second state. The first and second pulse types are transmitted across a voltage barrier of a digital signal isolator and received by a receive channel. The first and second pulse trains are processed to recover the input data stream in an output data stream. Data/System integrity functionality can identify fault conditions from an alteration of transmitted pulses.
摘要:
A pulse generating apparatus capable of calibration and calibrating method are disclosed. The pulse generating apparatus includes a pulse generator and a delay detector. The pulse generator is configured to repeatedly generate a testing pulse. The delay detector is electrically connected with the pulse generator. When the pulse generator generates the testing pulse, the delay detector detects a feature value of the testing pulse at a plurality detecting time points, and calculates a calibration value according to the detected feature values. The delay detector outputs the calibration value to the pulse generator and the pulse generator adjusts the testing pulse according to the calibration value.
摘要:
A signal converter may include: a clock generation unit suitable for generating a counting clock signal having a given period value; a signal dividing unit suitable for dividing an input signal having time information by a preset division value correlated with the given period value; and a counting unit suitable for generating a counting value by counting an output signal of the signal dividing unit in response to the counting clock signal.
摘要:
A multi-stage passive capture adapter (PCA) circuit is configured to sense and recover digital signals present on a high-speed serial bus for capture and analysis in external test equipment. A first stage of the PCA circuit includes a differentiator that functions as a high impedance probe that contacts the serial bus to capture an original input signal waveform of the high-speed digital signals. The signal waveform is fed to a dual-slope comparator/driver that includes a plurality of high-speed comparators and drivers. The second stage includes a differential receiver/shaper that converts logic levels of differential receiver outputs to input signals that set and reset a signal restorer whose output signals are fed to a driver of a driver/shaper. The output of the driver is then fed to a shaper network configured to substantially match an output signal of driver/shaper to the input signal waveform sensed from the high-speed serial bus.
摘要:
The invention relates to a DC-DC converter which is designed to supply a low-voltage network comprising a low-voltage battery and a battery sensor circuit with a low voltage, having a pulse generation device which is designed to feed electrical pulses into the low-voltage network in order to test the low-voltage battery using the battery sensor circuit.