How to Design a 2 kW 48 V/12 V Bi-DirectionalPower Module with packaged eGaN® FETs
●By 2025, one of every 10 vehicles sold worldwide is projected to be a 48V mild hybrid. 48V systems boost fuel efficiency,deliver four times the power without increasing engine size, and reduce carbon-dioxide emissions without increasing system costs.These systems will require a 48V/12V bidirectional converter, with power ranging from 1.5kW to 6kW. The design priorities for these systems are size, cost, and high reliability.
●This application note discusses the design of a EPC9165, 2kW, two-phase48V/12V bi-directional converter using GaN FETs in QFN packages, achieving 96% efficiency. The heatsinking capability can be considered infinite since this will ultimately function inside a vehicle with the unit mounted to the chassis.
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[ vehicle ][ DC-DC converter ][ circuitry includes current sensors ][ temperature sensor ][ digital controller ][ housekeeping power supply ] |
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Application note & Design Guide |
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Please see the document for details |
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QFN |
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English Chinese Chinese and English Japanese |
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2022/5/22 |
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895 KB |
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