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refpdt007

refpdt007reference design / application evaluation kit | rohm co., ltd.-爱游戏全站app官网入口

5kw high-efficiency fan-less inverter

we employ trans-linked interleaved circuits as inverter circuits that utilize the high frequency switching performance of silicon carbide (sic) mosfet, achieving a power conversion efficiency of 99% or more at 5kw.since this circuit topology allows a reduction in the inductance of the smoothing reactor, the high efficiency is achieved by reducing the number of windings of the reactor to dramatically reduce the copper loss. these novel inverter circuits have been developed jointly with power assist technology ltd. ()


this reference design consists of three boards. each is shown below.

  • refpdt007-evk-001a power stage
  • refpdt007-evk-001b controller board
  • refpdt007-evk-001c aux power supply

since the interleaved type using sic mosfet (sct3017al, sct3030al) has an efficiency of 99.0% (total loss 51 w),heat generation is reduced, and the circuit can be cooled with downsized heat radiation fins without using a cooling fan.furthermore, since the apparent switching frequency is doubled for the interleaved type, the smoothing filter is downsized by a factor of 2 in its size and weight.

refpdt007-evk-001a

related documents

 
  • refpdt007-evk-001a
  • refpdt007-evk-001c
  • refpdt007-evk-001b

design resources

 
  • refpdt007-evk-001a
  • refpdt007-evk-001c
  • refpdt007-evk-001b

specifications

 
board number input voltage output voltage output current switching frequency iout pp/iout peak bm max
refpdt007-evk-001a 320vdc 200vac 25a 40khz less than 0.2 less than 0.15t
refpdt007-evk-001c 320vdc 200vac 25a 40khz less than 0.2 less than 0.15t
refpdt007-evk-001b 320vdc 200vac 25a 40khz less than 0.2 less than 0.15t

distribution inventory

 
board number distributor quantity available

key components

 
board number part number product category datasheet status spice ltspice thermal model symbol & footprint 3d step samacsys ecad library calc tool rohm solution simulator
refpdt007-evk-001a sic schottky barrier diodes not recommended for new designs -
refpdt007-evk-001a sic mosfets recommended
refpdt007-evk-001a sic mosfets recommended
refpdt007-evk-001b sic schottky barrier diodes not recommended for new designs -
refpdt007-evk-001b sic mosfets recommended
refpdt007-evk-001b sic mosfets recommended
refpdt007-evk-001c sic schottky barrier diodes not recommended for new designs -
refpdt007-evk-001c sic mosfets recommended
refpdt007-evk-001c sic mosfets recommended