Product image

2254048-0766图片.png

Development purpose

A dual-magnetic-core, series-parallel LLC transformer combined with an external independent resonant inductor is used in a 40kW DC charging station: the high-voltage bus from the front-end three-phase PFC connects to the primary-side series winding for voltage division and insulation withstand, while the secondary-side parallel windings provide high-current output, supporting wide-range battery charging from 200V to 750V. The externally mounted independent resonant inductor allows flexible adjustment of resonant parameters, enabling convenient tuning and compatibility across multiple power specifications. Symmetrical dual magnetic cores ensure balanced power distribution between two paths, while the transformer itself performs only voltage transformation and isolation. Together with the external resonant inductor, it forms a complete LLC resonant circuit. With heat-dissipating base plates and vacuum potting, the design meets long-term thermal management and environmental durability requirements for outdoor high-power fast charging applications.

Product features

◆ Complies with ROHS and REACH environmental requirements
◆ Operating temperature range: -40°C to +155°C
◆ High power density and compact design
◆ Excellent heat dissipation performance

Application

◆ Split-type charging stack power module

◆ Integrated high-power DC pile

◆ Energy storage bidirectional converter PCS matching charger

Appearance and size

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Specification characteristics

Electrical Specifications@25℃
Part NO.	Output power(KW)	Inductance (uH) 100KHz,1V		Lk(uH) MAX 100KHz,1V		Turns Ratio 20KHz,1V	DCR (mΩ MAX)		HI-POT(VAC） 1mA/3S
2254048-0766	20	1-2/ 3-4	7-8/ 5-6	1-2/ 3-4	7-8/ 5-6	1-2:7-8 /3-4:5-6	1-2/ 3-4	7-8/ 5-6	PIR-SEC
2254048-0766	20	18.0±5%	30.0±5%	0.9	1.2	1:1.28	4.5	8.0	4.0KV

Production

Has been mass-produced

Product Classification

Transformer

Inductance

Assembly