Briefly describe the scale of the numberCommunication voltageYesRationaleI don't know。
Answer:
When a digital meter is used to measure the voltage, the voltage is reduced by a subvoltage circuit, then the communication signal is converted to a one-way pulsary direct flow signal via a current circuit, and then the near smooth direct current voltage is obtained by a filter wave circuit. This direct current voltage is converted to a digital signal by the modem converter (adc), which calculates the results of the display on the digital screen after the exchange voltage effectiveness (rms). In the absence of a valid value technique, it may be shown by means of an average calibration to a valid value。
Parsing:
The principle of the exchange of voltage is measured by a mass gauge of the number. When a digital meter is used to measure the voltage, the high voltage is first reduced to the appropriate range by a subvoltage circuit to protect the subsequent circuit from damage. The communication signal is then converted to a one-way pulsive direct flow signal using the single-way conductivity of the diode. A near smooth direct current voltage is then obtained by filtering the wave circuits to filter the high frequency pulse components. The current voltage was then sent to the modular converter (adc), which converted the analogue current voltage to a digital signal. After receiving these numbers of signals, the microprocessor calculates the effective value of the exchange voltage (rms) based on preset algorithms and drives the final results on the digital screen. In the absence of a valid value technique, it may be shown by means of an average calibration to a valid value. The key to solving the problem is to understand the complete flow of digital pv gauges for the exchange of voltages, including key steps such as decompression, flow management, filtering, adc conversion and validity calculations。
