Ripple voltage measuring device and method
The invention discloses a ripple voltage measuring device and method. The device comprises a control unit, a ripple sampling unit, a direct-current voltage sampling unit and a display unit; the ripple sampling unit is used for sampling the ripple voltage of a direct-current bus; the direct-current v...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The invention discloses a ripple voltage measuring device and method. The device comprises a control unit, a ripple sampling unit, a direct-current voltage sampling unit and a display unit; the ripple sampling unit is used for sampling the ripple voltage of a direct-current bus; the direct-current voltage sampling unit is used for sampling the direct-current voltage of the direct-current bus; the control unit is used for determining a ripple voltage coefficient according to the ripple voltage and the direct-current voltage; and the display unit is used for displaying the ripple voltage, the direct-current voltage and the ripple voltage coefficient. According to the ripple voltage measuring device and method of the embodiment of the invention, the control unit can directly calculate the ripple coefficient according to the ripple voltage and the direct-current voltage, so that the state of a charger in a direct-current system can be directly reflected through the ripple coefficient, and the process of a timing |
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