Maximizing energy conversion efficiency
forthebenefitofhumanityandsociety
ForElectricVehicles
IsolatedStep-Down
DC/DCConverter
ProductLineup
&
Introductionof usecases
Listenclosely,lookahead,
andcreateafutureofvalue.
Th i s i s an i so l a t ed DC /DC conve r t e r t ha t conve r t s t he h i gh -
vo l t age DC ba t t e r y o f an e l e c t r i c v eh i c l e i n to l ow -vo l t age DC and
supp l i e s power t o t he 12V power l i ne f o r aux i l i a r y equ ipment .
1kWIsolatedStep-Down 2kWIsolatedStep-Down
DC/DCConverter DC/DCConverter
withsimple-Waterproof withWaterproof
OurDC/DCconverters employsoft-switchingc ircuitry for low loss andhighheat
diss ipat ion/heat dispersiontechnologyto reduces ize andweight whi le increasingpower
capacity . In addit ion, ful l d ig ital control us ingDSPenables opt imal power supply control
andsafety design, andalsoenables communicat ionwith theupper- level ECUs. In
addit ion, a l ineupof cool ingmethods, suchas forcedair cool ingandwaterproof water
cool ing, is avai lable to meet therequirements of the vehicle.
Po in t Po in t Po in t
01 HighEfficiency 02 03 Parallel
IPCompliant
HighReliability Operation
DC/DC CONVERTER
Produc t De ta i l s
1kWIsolatedStep-Down
DC/DCConverter
Fo r Sma l l E l e c t r i c Mob i l i t y L i s t Spec
InputVoltage 70 -120V
OutputVoltage 10 -15 . 5V
OutputCurrent 50A
OutputPower 775W
Size W222×D131×H42mm
Cooling Fo r ced a i r coo l i ng
IPClass IP44
Communication CAN2 . 0b , 500kbps
2kWIsolatedStep-Down
DC/DCConverter
ForElectricmobility,
industrialequipment,etc. L i s t Spec
InputVoltage 240 -415V
OutputVoltage 10 -15 . 5V
OutputCurrent 150A〜
OutputPower 2325W〜
Size W238×D145×H67mm
Cooling WaterCoolingWithWater-Jacket
IPClass IP67
Communication CAN2 . 0b , 500kbps
CurrentlyinDevelopment!
PleaseFeelFree
toContactUs!
Low vo l tage i nput and H igh -vo l tage
produc t ( 800V i nput ) f o r f a s t charg ing .
ForEV/PHEV/HEV/FCV
Introductionofusecases
HighCurrentSystemExample Parallel-Operation
Withthe increase in auxi l iary power dueto theevolut ionof car e lectronics andthe
evolut ionof autonomousdr iv ingtechnology, DC/DCconverters with higher output are
alsorequired. By using1kWand2kWDC/DCconverters that canbeoperated in
paral le l , wecanmeet theneed for increasedauxi l iary power.
HighVolttageBatt MainDC-DC
Veh i c l e Load
VehicleLoad
Wiper,Heater
A/C,Lamp,etc
SubDC-DC
This is anexampleof a systemin whicha subDC/DCconverter is added in paral le l as a
booster whena high-current converter is needed.
Bydistr ibut ingtheauxi l iary power, i t is possible to prevent thewire harness andmain
fuse f rombecoming larger dueto the increasedcurrent of the DC/DCconverter .
■Outputcharacteristicsduringparalleloperation
This is the output current andvoltagecharacter ist ic when1kWand2kWare combined
andoperated in paral le l . I t is possible to correct theoutput current valueof the two
converters so that theycanbesuppl ied in a balancedmanner.Even i f a vehicle load is
addedandtherequiredcurrent increases, i f there is a DC/DCthat canoperate in
paral le l , i t is possible to easi ly supply power f romthesubDC/DCconverter .
Cooperative Control Add-on Control
Droop ing Ove r cu r r en t Ou tpu t
D roop ing Ove r cu r r en t Ou tpu t
ForEV/PHEV/HEV/FCV
Introductionofusecases
RedundantSystemExample RedundantOperation
Whenconf igur inga ful ly redundant autonomousdr iv ingsystem,
i t is necessary to also maketheauxi l iary power supply redundant. By
using1kWand2kWDC/DCconverters , wecanmeet theneedsof var ious
auxi l iary power supply systems.
HighVolttageBatt MainDC-DC
Veh i c l e Load
VehicleLoad
Wiper,Heater
A/C,Lamp,etc
SubDC-DC
X Veh i c l e Load
Veh i c l e Load
ECU
TCU
Autonomous
Ba t t e r y c an be VehicleLoad
r emoved . Wiper,Heater
A/C,Lamp,etc
DualBatterySystem
Veh i c l e Load
Au tonomous②
DualBatterySystem AutonomousDriving
DedicatedDC/DCConverter canbeset for 12Vbattery as
subpower supply in 24Vsystem.
AutonomousDriving
SubDC/DCConverter canbeset to secure theredundancy
of autonomousdr iv ingsystem.
Produc t I nqu i r i e s
Pleasecompletethe inquiryform
viatheQRcodel ink
Inquiriesregardingbrochuresandcatalogs
SalesPlanningSect.1MarketingDept. SalesDivGroup
☎+81-48-483-5372
ShindengenElectricManufacturingCo., Ltd.
WWW.shindengen.co.jp
HeadOff ice AsakaOff ice
New-Otemachi Bldg., 2-2-1 3-14-1Saiwai-cho,
Otemachi, Chiyoda-ku, Tokyo AsakaCity, Saitama351-
100-0004, Japan 8503, Japan