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Home > Products > Custom Products > Custom Design Examples > Automotive Industry

Automotive Industry

42 volt Automotive Electrical Systems Bi-directional One Kilowatt Converter
42 -14 V dc 14 - 42 V dc

Buck Mode:

Nominal Output Voltage: 14.2 Vdc @ 25C

Maximum Output Current: 68 Amps

Minimum Output Current¹: 8.5 Amps

EMI Specifications: SAE J1113/41 class 1 narrowband limits

Boost Mode:

Nominal Output Voltage: 42.6 Vdc @ 25C

Maximum Output Current²: 36.6 Amps

Minimum Output Current^1,2: 1.9 Amps

EMI Specifications: SAE J1113/41 class 1 narrowband limits

Other:

Low Voltage Bus Input Range: 11Vdc - 16 Vdc

High Voltage Bus Input Range: 33Vdc - 55 Vdc

Switching Frequency: 82 kHz nominal

Efficiency (at rated load): 90% minimum

Operating Temperature Range: -40 C to +70 C

Storage Temperature Range: <-40 C to +75 C

Converter Dimensions: 17.63" x 6" x 1.8" (44.8cm x 15.2cm x 4.6cm)

Converter Dimensions with Heatsink : 17.63" x 6" x 2.8" (44.8cm x 15.2cm x 7.1cm)

Power Connections: 14V Anderson PP75 Connectors

Power Connections: 42V Anderson PP45 Connectors

Logic Connections: Sub D Miniature 15 pin

Weight: 7.65 lb

Minimum current that ensures a well-behaved stable system

The low voltage current is regulated, therefore the high side current is determined by worst case bus voltages times the low voltage current while taking into consideration the power loss of the converter.

BUCK mode = Power flow from 42V to 14V
BOOST mode = Power flow from 14V to 42V