Patent ID: 8488316

Claim:
A power module, comprising: a first power chip and a second power chip, each of which is molded in the same molding material and has at least two electrodes, wherein at least one of the power chips has at least three electrodes, and at least one of the power chips operates at a frequency higher than or equal to 25 kHz, wherein the power module is applied to a power converter, an operation voltage of at least one of the power chips in the power converter is higher than 48 volts, the power converter has a power density and a maximum efficiency respectively higher than 15 W/inch 3 and 92%, or has the power density higher than 20 W/inch 3 or the maximum efficiency of the power converter higher than 93%, a total volume ratio of the power module to the power converter is smaller than 50%, a ratio of an electric energy converting stage processing power of the power converter using the power module to a total output power of the power converter is higher than or equal to 30%, and the total output power of the power converter is higher than or equal to 150 W.