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Texas Instruments UCC28740 | Demoboard PMP41031
350-V to 1500-V input, 150-W isolated auxiliary power reference design
Overview
| Topology | Flyback Converter |
| Input voltage | 350-1500 V |
| Output 1 | 15 V / 3 A |
| Output 2 | 8 V / 2 A |
| Output 3 | 15 V / 0.8 A |
| Output 4 | 24 V / 3 A |
| IC revision | E1 |
Description
This reference design provides four isolated outputs of 24 V,15 V, –15 V, 8 V and maximum 150-W output with two-switch flyback topology. The power supply can be powered from 350-V to 1500-V DC input. This design uses the valley switching UCC28740 flyback controller . The design achieves 89.11% efficiency at 600-V input and 86.17% efficiency at 1500-V input, full-load condition.
Features
- Wide input range from 350-V to 1500-V DC
- Two-switch flyback topology recycles leakage energy
- Quasi-resonant mode controller improves efficiency
- Less voltage stress on the primary switch
- Peak efficiency of 89.11% at 600-V input and 150-W output
- 86.17% efficiency at 1500-V input and 150-W output
Typical applications
- Central inverter; DC fast charging station; Fuel cell inverter; Power conversion system (PCS); Single phase string inverter; Three Phase String Inverter
More information
Products
Order Code | Datasheet | Downloads | Status | Product series | n | L(µH) | ∫Udt(µVs) | VT(V (AC)) | CWW 1(pF) | LS(µH) | Size | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-GDTI Gate-Drive-Transformer, 1:1, 750 µH | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-GDTI Gate-Drive-Transformer | Turns Ratio1:1 | Inductance750 µH | Voltage-µSecond102 µVs | Insulation Test Voltage2500 V (AC) | Interwinding Capacitance11 pF | Leakage Inductance4 µH | SizeEP7 | |||
 | 750345142 | Flyback Transformer, –, – | Downloads– | Status Activei| Production is active. Expected lifetime: >10 years. | Product series Flyback Transformer | – | – | – | – | – | – | – |