Baoshan Iron & Steel Co., Ltd.

Nuvolta Technologies (shanghai) Co., Ltd.

Xiaoming Xia

Bo Yan

Sihai Jiao

Ikgyoo Song

A method includes providing a current flowing through a first flying capacitor of a switched-capacitor power converter, measuring a first voltage at one terminal of the first flying capacitor at a first voltage measurement time instant, measuring a second voltage at the one terminal of the first flying capacitor at a second voltage measurement time instant, and calculating a capacitance value of the first flying capacitor based on the first voltage, the second voltage, the first voltage measurement time instant and the second voltage measurement time instant.

Capacitance calculation apparatus and method thereof

Disclosed are a high-strength corrosion-resistant cladding chequered steel and a manufacturing method therefor. The high-strength corrosion-resistant cladding chequered steel includes a substrate and a chequered cladding layer cladded on the substrate by single-sided or double-sided rolling. The mass percentages of the chemical elements of the substrate are: C: 0.01% to 0.20%, Si: 0.10% to 0.5%, Mn: 0.5% to 2.0%, Al: 0.02% to 0.04%, Ti: 0.005% to 0.018%, Nb: 0.005% to 0.020%, 0&#x3c;B&#x2264;0.0003%, N&#x2264;0.006%, and the balance being steel and other inevitable impurities. The high-strength corrosion-resistant cladding steel plate has a high strength, a high corrosion resistance, a yield strength &#x2265;470 MPa, a tensile strength &#x2265;610 MPa, a shear strength &#x2265;410 MPa, and an elongation &#x2265;40%.

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Shanghai, China

Xiaoming Xia