Bidirectional Power Supplies
- Power supplies from 2kW up to 11kW
- Designed for ground mobile or industrial automation use
- Input/Output: 3AC input with active PFC
- Output/Input: High or low voltage DC
- High efficiency and power factor
There are several examples for applications requiring bidirectional power concepts. Increased system efficiency, energy recovery, conditions relevant to functionality, intelligent mains (EVs as intermediate storage for mains power), and cost and space savings are just a few of the applications that require bidirectional power supplies or converters. Selection of topology taking mains or DC voltages as well as their conversion ratios into account play a decisive role in applications. CLLC is a good choice where the battery and PFC bus voltage (around 400V DC) are similar in 3AC mains applications. If the battery voltage is substantially lower (48V) or higher (800V DC) than the PFC bus voltage, a phase-shifted full bridge or PSFB is a better alternative. The bidirectional 10kW platform solution shown was developed on the basis of 3AC mains and a 45V lithium-ion battery with a PSFB topology selected corresponding to the following block diagram:
The following designs are intentionally developed as platform solutions, which enable RECOM to modify fast, easily and cost efficient these solutions to different customer needs.
The following designs are intentionally developed as platform solutions, which enable RECOM to modify fast, easily and cost efficient these solutions to different customer needs.
| Attributes | Bidirectional Power Supplies |
|---|---|
| AC/DC or DC/DC | |
| Power (W) | up to 10000W |
| Isolation | Isolated |
| Nr. of Outputs | Single, bidirectional |
| Vin (V) |
90 - 264 1AC 340 - 480 3AC 200 - 1000 DC |
| Vout (V) | 3-300 DC |
| Iout (A) | 0-80 charging |
| Iin (A) |
0-40A discharge progammable Charging curve progammable Discharging curve |
| Connection |
Screw Terminals, Cage Clamps others on request |
| Mechanical style |
Open frame Chassis mounting, enclosed 19"-Rack style |
| Certifications | CE, EN 62368, EN61010, UL 60950-1 |
| MIN Operating Temp (°C) | -40.0 |
| MAX Operating Temp (°C) | 70.0 / 85.0 |
| Protections | OCP, OTP, OVP, SCP |
| Interfaces | I²C, Ethernet, CAN, ….? |
| Directives | REACH, RoHS 2+ (10/10), WEEE |
| Warranty | 3 Years |
| Regulation | Regulated |
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