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Texas Instruments UCC28711 | Demoboard TIDA-00173
400- to 690-V AC Input 50-W Flyback Isolated Power Supply Reference Design for Motor Drives
Overview
| Topology | Other Topology |
| Switching frequency | 130 kHz |
Description
This reference design provides isolated +24V (45W), ±16 V (4.5W), and +6V (0.5W) outputs to power the control electronics in variable speed drives. The power supply can be either powered directly from 3-phase AC mains (380Vac to 690Vac) or can be powered from the DC-link voltage (400Vdc to 1200Vdc). This design uses a quasi-resonant flyback topology and is rated for 50-Watt total output power. The line and load regulation of the power supply is designed to be within 5% using primary-side regulation (eliminating costly feedback components). The power supply is designed to meet the clearance, creepage, and isolation test voltages as per IEC61800-5 requirements.
Features
Versatile input: can be either 400V-1200V DC or 380V-690V AC<5% line and load regulationProtection against input UV/OV, output overload, short-circuit and loss of feedbackLow-cost solution by implementing primary-side regulation (eliminates feedback loop) and use of 1000V rated MOSFETSsQuasi-resonant mode controller improves EMI performanceDesigned to comply to IEC 61800-5REMARK: Schematic,BOM and pdf is added
Typical applications
- Industrial Inverters,Servo Drives
- Solar Inverters
- Variable Speed ac and dc Drives,UPS Systems
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | L(µH) | IR(A) | ISAT,10%(A) | fres(MHz) | Version | ISAT(A) | Mount | Z @ 100 MHz(Ω) | Zmax(Ω) | Test Condition Zmax | IR 2(mA) | RDC max.(Ω) | Type | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-TI Radial Leaded Wire Wound Inductor, 2.2 µH, 6.3 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-TI Radial Leaded Wire Wound Inductor | Inductance2.2 µH | Rated Current6.3 A | Saturation Current @ 10%5.7 A | Self Resonant Frequency65 MHz | VersionHeat Shrinking Tube | Saturation Current4.3 A | MountTHT | – | – | – | – | DC Resistance0.02 Ω | – | ||||
 | WE-TI HV Radial Leaded Wire Wound Inductor (High Voltage), 1000 µH, 0.5 A | Status Activei| Production is active. Expected lifetime: >10 years. | Inductance1000 µH | Rated Current0.5 A | Saturation Current @ 10%0.55 A | Self Resonant Frequency1.8 MHz | VersionStandard | Saturation Current0.55 A | MountTHT | – | – | – | – | DC Resistance2.08 Ω | – | |||||
 | WE-CBF SMT EMI Suppression Ferrite Bead, –, 1 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-CBF SMT EMI Suppression Ferrite Bead | – | Rated Current1 A | – | – | VersionSMT | – | MountSMT | Impedance @ 100 MHz850 Ω | Maximum Impedance1250 Ω | Maximum Impedance50 MHz | Rated Current 21500 mA | DC Resistance0.1 Ω | TypeHigh Current |