Patent ID: 9577573
Date: 2017-02-21
CPC Classifications: H01L,H02S,Y02E

Claim:
1. A photovoltaic module comprising: a solar cell module including a plurality of solar cells; and a junction box including a plurality of bypass diodes, a DC/DC converter unit to convert a level of DC power supplied from the solar cell module, and an inverter unit to convert level-converted DC power into AC power, wherein the junction box outputs the AC power, wherein the solar cell module further includes a plurality of solar cell strings including some of the plurality of solar cells connected in a row, and a plurality of conductive lines electrically connecting the plurality of solar cell strings and the plurality of bypass diodes within the junction box, wherein the plurality of conductive lines are extended to a rear surface of the solar cell module through corresponding openings formed in the solar cell module, wherein the inverter unit outputs the AC power which has the same frequency as an AC frequency of grid, wherein the inverter unit includes: upper arm switching elements connected in series; and lower arm switching elements connected in series and paired with the upper arm switching elements, wherein a total of the upper and the lower arm switching elements are connected in parallel.