Fuel cell non-isolated boost DC-DC converter

The third generation DC/DC converter

    The fuel cell non-isolated boost DC-DC converter is used to convert the low-voltage DC boost from the fuel cell output to a high-voltage DC output, matching the voltage requirements of an electric vehicle, providing power to an electric vehicle while charging the power battery.
    The product has a power density of up to 5.3KW/L,resulting in a higher power density with minimal volume and increased economical utility.

Technical features

● Full SiC power device design;
● High switching frequency, high power density, high efficiency;
● The company's third generation of new standard high-power density technology, the use of more advanced circuit topology, digital control;
● Better dynamic adjustment capability to adapt to the large range of fluctuations in the load, to meet the requirements of vehicle mobility.

Apply the schematic

Technical parameters

Model	EV1FD-60-400	EV1FD-80-400	EV1FD-130-600
Low-voltage side
Input voltage range	80Vdc~400Vdc
Input Max. current	350A（Peak 400A）	450A（Peak 500A）	600A（Peak 650A）
Input Max. power	60KW	80KW	130KW
High-voltage sige
Output voltage range	The 400Vdc to 750Vdc can be found in the input and output voltage operating range graphs
Output Max. current	150A	200A	300A
PDU	Up to 6 outputs, equipped with relay and insurance
Protection
Software protection	Over voltage, Over current, Over temperature Communication failure
Hardware protection	Input over current、Output over voltage
System
Efficiency	MAX 99.3%；≥98% @ 20%~100% load
IP & Galvanic insulation	IP67；Isolate the shell withstand voltage is 3000Vdc
Cooling	Water，-40℃~60℃，＞20L/min
Communication & control	CAN；Input current control
Control accuracy	≤1% @ 30% ~ 100% load，≤3% @≤30% load
Precharge	Input available, Output available, PDU available
Mechanical
Dimension	With PDU：450mm*550mm*120mm
Reference weight	Max. 45kg

A full-load work range graph

Description

(1) The input current in the chart above is rated input current and the power does not exceed the rated power, the input voltage and output voltage corresponding to the operating range range, usually 4 times the voltage range beyond this range converter will not be able to work properly;
(2) The rated input power of the chart above is the input voltage multiplied by the rated input current;
(3) The minimum voltage of the output is the input voltage divided by 0.9, the maximum voltage of the output is divided by 0.25,and the maximum voltage is limited to 750V.

When the boost ratio >4, the input voltage VS enters the maximum current operating range graph

Temperature drop graph