TIDUBE1D January   2016  â€“ August 2024

 

  1.   1
  2.   Description
  3.   Resources
  4.   Features
  5.   Applications
  6.   6
  7. 1System Description
    1. 1.1 Key System Specifications
  8. 2System Overview
    1. 2.1 Block Diagram
    2. 2.2 Highlighted Products and Key Advantages
      1. 2.2.1 UCC28180 – PFC Controller
      2. 2.2.2 UCC27524 – Dual Low-Side Gate Driver
      3. 2.2.3 UCC28881 – 700-V Off-Line Converter
    3. 2.3 System Design Theory
      1. 2.3.1 Selecting Switching Frequency
      2. 2.3.2 Calculating Output Capacitance
      3. 2.3.3 Calculating PFC Choke Inductor
      4. 2.3.4 Selecting Switching Element
      5. 2.3.5 Boost Follower Control Circuit
      6. 2.3.6 Bias Power
      7. 2.3.7 On-Off Switch
      8. 2.3.8 Thermal Design
  9. 3Hardware, Testing Requirements, and Test Results
    1. 3.1 Required Hardware
      1. 3.1.1 Test Conditions
      2. 3.1.2 Recommended Equipment
      3. 3.1.3 Procedure
    2. 3.2 Test Results
      1. 3.2.1 Performance Data
        1. 3.2.1.1 Efficiency and iTHD
        2. 3.2.1.2 Standby Power and Output Voltage
      2. 3.2.2 Performance Curves
        1. 3.2.2.1 Efficiency Curve
        2. 3.2.2.2 Voltage Follower Performance
      3. 3.2.3 Functional Waveforms
        1. 3.2.3.1 Power On Sequence
        2. 3.2.3.2 Inrush Current Protection
        3. 3.2.3.3 Switching Node
        4. 3.2.3.4 Waveform Under 3.5kW, 230VAC
      4. 3.2.4 Thermal Measurements
  10. 4Design Files
    1. 4.1 Schematics
    2. 4.2 Bill of Materials
  11. 5Documentation Support
  12. 6Trademarks
  13. 7About the Author
  14. 8Revision History

Efficiency and iTHD

Table 3-1 show the efficiency data at inputs of 230-V AC, tested by Yokogawa WT500.

Table 3-1 Performance Data Under 230-V AC Input
VINAC (V) IINAC (A) PINAC (W) PF THDi (%) VOUT (V) IOUT (A) POUT (W) EFFICIENCY (%)
229.8 1.2858 238.4 0.9340 22.925 384.13 0.6014 231.1 96.935
229.31 3.1522 708.6 1.0000 6.7150 383.29 1.8114 694.4 97.989
228.82 5.1921 1177.1 1.0000 5.1510 382.86 3.0155 1154.9 98.117
228.60 6.2260 1413.0 1.0000 4.6050 382.91 3.6208 1386.6 98.128
228.34 7.2660 1649.4 1.0000 4.4460 382.70 4.2285 1618.4 98.116
228.10 8.2870 1880.8 1.0000 4.1360 382.54 4.8229 1845.1 98.100
228.03 8.4410 1915.2 1.0000 4.0980 382.38 4.9120 1878.4 98.078
227.88 9.3290 2116.3 1.0000 3.6610 382.34 5.4272 2075.4 98.066
227.62 11.3660 2349.7 1.0000 3.6180 382.10 6.0270 2303.2 98.021
227.33 11.5400 2513.6 1.0000 3.9840 381.77 6.7070 2560.7 97.974
227.12 12.5860 2847.8 1.0000 3.8840 381.84 7.3030 2788.7 97.925
226.62 14.6800 3314.7 1.0000 4.2800 381.55 8.4970 3242.4 97.820
226.32 15.7430 3550.4 1.0000 4.5440 381.32 9.1020 3471.1 97.767
226.07 16.7750 3778.5 1.0000 4.8880 381.17 9.6860 3692.1 97.714
Table 3-1 show the efficiency data at inputs of 270-V AC, tested by HIOKI PW8001.
Table 3-2 Performance Data Under 270-V AC Input
VINAC (V) IINAC (A) PINAC (W) PF THDi (%) VOUT (V) IOUT (A) POUT (W) EFFICIENCY (%)
270.21 0.3530 43.5 0.4557 21.522 403.28 0.0952 38.3 88.188
269.75 2.2216 584.3 0.9750 10.833 402.74 1.4202 572.0 97.866
269.62 2.7825 738.1 0.9838 6.930 403.20 1.7962 724.2 98.122
269.35 3.9289 1047.6 0.9899 6.309 402.99 2.5542 1029.3 98.257
269.26 4.3476 1160.4 0.9915 5.839 402.39 2.8338 1140.3 98.267
269.13 4.9228 1315.0 0.9925 5.578 402.80 3.2086 1292.4 98.283
268.88 5.7564 1538.5 0.9940 4.957 402.34 3.7596 1512.6 98.320
268.76 6.3351 1693.6 0.9949 4.693 402.43 4.1381 1665.3 98.330
268.69 6.9090 1847.3 0.9952 4.417 402.26 4.5154 1816.4 98.325
268.45 7.6492 2044.7 0.9957 4.192 402.26 4.9973 2.0102 98.314
268.43 7.9106 2114.7 0.9959 4.059 402.06 5.1706 2078.9 98.305
268.32 8.2264 2.1985 0.9960 4.050 402.17 5.3746 2161.5 98.316
268.27 8.6359 2308.0 0.9962 3.866 401.69 5.6469 2268.3 98.279
268.04 9.6551 2578.8 0.9965 3.929 402.03 6.3033 2534.1 98.265
267.91 10.0657 2687.4 0.9966 3.869 401.77 6.5735 2687.4 98.274
267.74 10.9498 2922.0 0.9967 4.003 401.91 7.1443 2871.4 98.270
267.05 14.0000 3726.6 0.9968 4.471 401.39 9.1110 3656.7 98.126
266.92 14.4043 3832.5 0.9968 4.445 400.85 9.3793 3759.7 98.101