3-in-1 EV Power Unit: Onboard Charger, DC-DC Converter & PDU

3-in-1 Integrated EV Power Unit — OBC + DC-DC Converter + PDU

Echelon Energy Technology (Hangzhou) Co., Ltd. manufactures integrated power units
for commercial and specialty electric vehicles. Our 3-in-1 solution combines an
onboard charger, a DC-DC converter and a power distribution unit in one assembly.

THREE FUNCTIONS IN ONE UNIT

- Onboard Charger (OBC): Converts AC input into DC power to charge the traction
battery.
- DC-DC Converter: Converts traction battery voltage to the low-voltage supply
required by vehicle auxiliary systems.
- Power Distribution Unit (PDU): Distributes power to designated vehicle circuits
according to the agreed electrical architecture.

WHY CONSIDER AN INTEGRATED DESIGN?

For OEM projects with limited installation space, a 3-in-1 unit can help
consolidate component mounting and reduce some interconnections between otherwise
separate units. Actual packaging and wiring benefits depend on the vehicle layout
and the scope of integration.

Selection should consider charging performance, low-voltage power demand, power
distribution requirements, cooling, service access and vehicle operating modes.

CONFIGURATION OPTIONS

Example OBC + DC-DC combinations within the 3-in-1 range include:
- 3.3 kW OBC + 1 kW DC-DC + PDU
- 6.6 kW OBC + 2.5 kW DC-DC + PDU

Please contact us to confirm the available model for your project. Battery voltage
range, AC input, DC-DC output, PDU circuit ratings, cooling method, dimensions and
connector layout must be confirmed for the selected configuration.

APPLICATIONS

Configur , ations can be evaluated for light commercial EVs, cargo vehicles, utility
vehicles, agricultural EVs, municipal vehicles and airport ground support
equipment, subject to electrical and mechanical compatibility.

OEM CUSTOMIZATION SUPPORT

Depending on the selected model and project scope, we can review:
- CAN communication requirements
- Charging and DC-DC operating logic
- Connector and wiring interfaces
- PDU circuit and protection requirements
- Software settings and product labeling
- Housing and mounting requirements

PDU configuration is project-specific. Please provide the required branch circuits,
continuous and peak currents, and requirements for fuses, contactors, precharge and
high-voltage interlock, where applicable. These items require engineering
confirmation and should not be assumed to be included in every model.

INFORMATION FOR MODEL SELECTION AND QUOTATION

Please share:
1. Vehicle type and application
2. Battery chemistry, capacity and full operating voltage range
3. AC supply voltage, phase and required charging power
4. DC-DC output voltage, continuous power and peak load
5. PDU circuit diagram and branch current requirements
6. CAN protocol and required operating modes
7. Whether charging and DC-DC operation are required simultaneously
8. Available installation space and cooling conditions
9. Sample quantity, estimated annual volume and target production date

Our team can review these details and provide a suitable proposal with model-
specific specifications, drawings and quotation.

Manufacturer: Echelon Energy Technology (Hangzhou) Co., Ltd.
Location: Hangzhou, China
Website: https://www.echelon-charger.com/
Email: nancy@tici-energy.com
WhatsApp: +86 18114665311

Minimum Order: 1 pieces

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