Patent · US Active

Direct current (DC) transformer error detection apparatus for pulsating harmonic signal

US12146925B2 · kind B2 · utility

0Cited by
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5Claims
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Assignee

Inventors

Key dates

Filing dateAug 17, 2022
Grant dateNov 19, 2024
Priority date
Expiry dateAug 17, 2042

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH02M1/327
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

The present disclosure provides a direct current (DC) transformer error detection apparatus for a pulsating harmonic signal, including a DC and pulsating harmonic current output module and an external detected input module, where the DC and pulsating harmonic current output module outputs a DC and a DC superimposed pulsating harmonic current to an internal sampling circuit and a self-calibrated standard resistor array; and the internal sampling circuit converts the input DC and the input DC superimposed pulsating harmonic current into a voltage signal, and sends the voltage signal to an analog-to-digital (AD) sampling and measurement component through a front-end conditioning circuit and a detected input channel. The DC transformer error detection apparatus can complete self-calibration for measurement of the DC and the pulsating harmonic signal on a test site.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.