Create a schematic for DC-DC converter circuit. 

libSymbols:
- D24V50F5:C
- D24V50F5:CP1
- D24V50F5:D
- D24V50F5:D_Zener
- D24V50F5:R_Small_US
- D24V50F5:R_US
- L4971:L4971
- L4971_1
- SI-8050Y:SI-8050Y
- power:GND
- pspice:INDUCTOR
schematicSymbols:
- libraryNickname: D24V50F5
  entryName: C
  position:
    x: 48.895
    y: 157.48
    angle: 0
  properties:
  - key: Reference
    value: C7
    position:
      x: 45.72
      y: 155.575
      angle: 0
  - key: Value
    value: 680pF
    position:
      x: 47.625
      y: 165.1
      angle: 90
- libraryNickname: D24V50F5
  entryName: C
  position:
    x: 35.56
    y: 156.845
    angle: 0
  properties:
  - key: Reference
    value: C1
    position:
      x: 33.02
      y: 154.94
      angle: 0
  - key: Value
    value: ''
    position:
      x: 34.29
      y: 170.18
      angle: 90
- libraryNickname: power
  entryName: GND
  position:
    x: 32.385
    y: 170.815
    angle: 0
  properties:
  - key: Reference
    value: '#PWR?'
    position:
      x: 32.385
      y: 177.165
      angle: 0
  - key: Value
    value: GND
    position:
      x: 32.385
      y: 175.26
      angle: 0
- libraryNickname: power
  entryName: GND
  position:
    x: 66.675
    y: 78.74
    angle: 0
  properties:
  - key: Reference
    value: '#PWR?'
    position:
      x: 66.675
      y: 85.09
      angle: 0
  - key: Value
    value: GND
    position:
      x: 66.675
      y: 83.1834
      angle: 0
- libraryNickname: D24V50F5
  entryName: C
  position:
    x: 82.55
    y: 148.59
    angle: 0
  properties:
  - key: Reference
    value: C5
    position:
      x: 80.01
      y: 146.05
      angle: 0
  - key: Value
    value: 0.22uF/50V
    position:
      x: 84.455
      y: 146.685
      angle: 90
- libraryNickname: D24V50F5
  entryName: R_Small_US
  position:
    x: 85.09
    y: 60.325
    angle: 0
  properties:
  - key: Reference
    value: R1
    position:
      x: 86.36
      y: 58.42
      angle: 0
  - key: Value
    value: 20K Ohm
    position:
      x: 86.36
      y: 60.325
      angle: 0
- libraryNickname: D24V50F5
  entryName: C
  position:
    x: 63.5
    y: 165.1
    angle: 0
  properties:
  - key: Reference
    value: C6
    position:
      x: 66.675
      y: 163.83
      angle: 0
  - key: Value
    value: 100nF
    position:
      x: 66.675
      y: 166.37
      angle: 0
- libraryNickname: D24V50F5
  entryName: C
  position:
    x: 85.09
    y: 66.675
    angle: 0
  properties:
  - key: Reference
    value: C2
    position:
      x: 88.011
      y: 65.8403
      angle: 0
  - key: Value
    value: 2.7nF
    position:
      x: 88.011
      y: 68.3772
      angle: 0
- libraryNickname: pspice
  entryName: INDUCTOR
  position:
    x: 95.885
    y: 155.575
    angle: 0
  properties:
  - key: Reference
    value: L1
    position:
      x: 95.885
      y: 156.845
      angle: 0
  - key: Value
    value: INDUCTOR
    position:
      x: 95.885
      y: 158.75
      angle: 0
- libraryNickname: D24V50F5
  entryName: C
  position:
    x: 54.61
    y: 157.48
    angle: 0
  properties:
  - key: Reference
    value: C4
    position:
      x: 52.07
      y: 155.575
      angle: 0
  - key: Value
    value: 1200pF
    position:
      x: 55.245
      y: 160.02
      angle: 0
- libraryNickname: D24V50F5
  entryName: C
  position:
    x: 187.96
    y: 73.66
    angle: 0
  properties:
  - key: Reference
    value: C?
    position:
      x: 191.77
      y: 72.3899
      angle: 0
  - key: Value
    value: C
    position:
      x: 191.77
      y: 74.9299
      angle: 0
- libraryNickname: power
  entryName: GND
  position:
    x: 200.66
    y: 93.98
    angle: 0
  properties:
  - key: Reference
    value: '#PWR?'
    position:
      x: 200.66
      y: 100.33
      angle: 0
  - key: Value
    value: GND
    position:
      x: 200.66
      y: 99.06
      angle: 0
- libraryNickname: D24V50F5
  entryName: D_Zener
  position:
    x: 82.55
    y: 162.56
    angle: 270
  properties:
  - key: Reference
    value: D1
    position:
      x: 85.09
      y: 161.2899
      angle: 90
  - key: Value
    value: D_Zener
    position:
      x: 85.09
      y: 163.8299
      angle: 90
- libraryNickname: L4971
  entryName: L4971
  position:
    x: 212.09
    y: 77.47
    angle: 0
  properties:
  - key: Reference
    value: U?
    position:
      x: 211.455
      y: 57.15
      angle: 0
  - key: Value
    value: L4971
    position:
      x: 211.455
      y: 59.69
      angle: 0
- libraryNickname: power
  entryName: GND
  position:
    x: 85.09
    y: 70.485
    angle: 0
  properties:
  - key: Reference
    value: '#PWR?'
    position:
      x: 85.09
      y: 76.835
      angle: 0
  - key: Value
    value: GND
    position:
      x: 85.09
      y: 74.9284
      angle: 0
- libraryNickname: D24V50F5
  entryName: C
  position:
    x: 81.28
    y: 81.915
    angle: 90
  properties:
  - key: Reference
    value: C?
    position:
      x: 81.28
      y: 74.93
      angle: 90
  - key: Value
    value: C
    position:
      x: 81.28
      y: 77.47
      angle: 90
- libraryNickname: D24V50F5
  entryName: C
  position:
    x: 66.675
    y: 74.93
    angle: 180
  properties:
  - key: Reference
    value: C?
    position:
      x: 69.596
      y: 74.0953
      angle: 0
  - key: Value
    value: C
    position:
      x: 69.596
      y: 76.6322
      angle: 0
- libraryNickname: SI-8050Y
  entryName: SI-8050Y
  position:
    x: 72.39
    y: 146.685
    angle: 0
  properties:
  - key: Reference
    value: U?
    position:
      x: 71.12
      y: 137.16
      angle: 0
  - key: Value
    value: SI-8050Y
    position:
      x: 67.818
      y: 139.065
      angle: 0
- libraryNickname: D24V50F5
  entryName: R_US
  position:
    x: 54.61
    y: 165.1
    angle: 0
  properties:
  - key: Reference
    value: R1
    position:
      x: 55.88
      y: 163.195
      angle: 0
  - key: Value
    value: 39K Ohms
    position:
      x: 52.705
      y: 169.545
      angle: 90
- libraryNickname: D24V50F5
  entryName: C
  position:
    x: 41.91
    y: 156.845
    angle: 0
  properties:
  - key: Reference
    value: C2
    position:
      x: 38.735
      y: 154.94
      angle: 0
  - key: Value
    value: 4.7uF/50V
    position:
      x: 43.18
      y: 168.275
      angle: 90
- libraryNickname: pspice
  entryName: INDUCTOR
  position:
    x: 90.805
    y: 80.645
    angle: 90
  properties:
  - key: Reference
    value: L?
    position:
      x: 91.44
      y: 79.3749
      angle: 90
  - key: Value
    value: INDUCTOR
    position:
      x: 79.375
      y: 86.995
      angle: 90
- libraryNickname: D24V50F5
  entryName: C
  position:
    x: 173.355
    y: 81.28
    angle: 0
  properties:
  - key: Reference
    value: C?
    position:
      x: 176.53
      y: 80.0099
      angle: 0
  - key: Value
    value: C
    position:
      x: 176.53
      y: 82.5499
      angle: 0
- libraryNickname: power
  entryName: GND
  position:
    x: 57.15
    y: 78.74
    angle: 0
  properties:
  - key: Reference
    value: '#PWR?'
    position:
      x: 57.15
      y: 85.09
      angle: 0
  - key: Value
    value: GND
    position:
      x: 57.15
      y: 83.1834
      angle: 0
- libraryNickname: D24V50F5
  entryName: C
  position:
    x: 57.15
    y: 74.93
    angle: 180
  properties:
  - key: Reference
    value: C?
    position:
      x: 60.071
      y: 74.0953
      angle: 0
  - key: Value
    value: C
    position:
      x: 60.071
      y: 76.6322
      angle: 0
- libraryNickname: power
  entryName: GND
  position:
    x: 101.6
    y: 90.805
    angle: 0
  properties:
  - key: Reference
    value: '#PWR?'
    position:
      x: 101.6
      y: 97.155
      angle: 0
  - key: Value
    value: GND
    position:
      x: 101.6
      y: 95.25
      angle: 0
- libraryNickname: D24V50F5
  entryName: CP1
  position:
    x: 104.14
    y: 163.83
    angle: 0
  properties:
  - key: Reference
    value: C3
    position:
      x: 106.045
      y: 161.29
      angle: 0
  - key: Value
    value: 470uF/25V
    position:
      x: 106.045
      y: 166.37
      angle: 0
- libraryNickname: pspice
  entryName: INDUCTOR
  position:
    x: 166.37
    y: 69.85
    angle: 0
  properties:
  - key: Reference
    value: L?
    position:
      x: 166.37
      y: 63.5
      angle: 0
  - key: Value
    value: INDUCTOR
    position:
      x: 166.37
      y: 66.04
      angle: 0
- libraryNickname: D24V50F5
  entryName: D
  position:
    x: 90.805
    y: 90.805
    angle: 90
  properties:
  - key: Reference
    value: D?
    position:
      x: 93.98
      y: 89.5349
      angle: 90
  - key: Value
    value: D
    position:
      x: 93.98
      y: 92.0749
      angle: 90
- libraryNickname: L4971
  entryName: L4971
  position:
    x: 113.03
    y: 74.295
    angle: 0
  properties:
  - key: Reference
    value: U1
    position:
      x: 112.395
      y: 55.406
      angle: 0
  - key: Value
    value: L4971
    position:
      x: 112.395
      y: 57.9429
      angle: 0
junctions:
- position:
    x: 38.735
    y: 147.955
    angle: 0
- position:
    x: 93.98
    y: 70.485
    angle: 0
- position:
    x: 38.735
    y: 170.815
    angle: 0
- position:
    x: 48.895
    y: 170.815
    angle: 0
- position:
    x: 200.66
    y: 93.98
    angle: 0
- position:
    x: 187.96
    y: 77.47
    angle: 0
- position:
    x: 194.31
    y: 83.82
    angle: 0
- position:
    x: 90.805
    y: 97.79
    angle: 0
- position:
    x: 45.085
    y: 170.815
    angle: 0
- position:
    x: 66.675
    y: 70.485
    angle: 0
- position:
    x: 38.735
    y: 151.13
    angle: 0
- position:
    x: 54.61
    y: 170.815
    angle: 0
- position:
    x: 194.31
    y: 81.28
    angle: 0
- position:
    x: 77.47
    y: 70.485
    angle: 0
- position:
    x: 82.55
    y: 155.575
    angle: 0
- position:
    x: 132.08
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    angle: 0
- position:
    x: 194.31
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    angle: 0
- position:
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    angle: 0
- position:
    x: 93.98
    y: 78.105
    angle: 0
- position:
    x: 38.735
    y: 163.83
    angle: 0
- position:
    x: 85.725
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    angle: 0
- position:
    x: 72.39
    y: 70.485
    angle: 0
- position:
    x: 54.61
    y: 153.035
    angle: 0
- position:
    x: 194.31
    y: 97.79
    angle: 0
- position:
    x: 82.55
    y: 170.815
    angle: 0
- position:
    x: 194.31
    y: 93.345
    angle: 0
- position:
    x: 92.71
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    angle: 0
- position:
    x: 93.98
    y: 90.17
    angle: 0
- position:
    x: 187.96
    y: 69.85
    angle: 0
- position:
    x: 104.14
    y: 155.575
    angle: 0
noConnects: []
busEntries: []
graphicalItems:
- type: wire
  points:
  - x: 82.55
    y: 152.4
  - x: 82.55
    y: 155.575
- type: wire
  points:
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    y: 153.035
  - x: 48.895
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- type: wire
  points:
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- type: wire
  points:
  - x: 96.52
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  - x: 90.805
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- type: wire
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    y: 151.13
  - x: 38.735
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- type: wire
  points:
  - x: 54.61
    y: 170.815
  - x: 48.895
    y: 170.815
- type: wire
  points:
  - x: 41.91
    y: 160.655
  - x: 41.91
    y: 163.83
- type: wire
  points:
  - x: 85.09
    y: 81.915
  - x: 96.52
    y: 81.915
- type: wire
  points:
  - x: 231.775
    y: 66.04
  - x: 227.33
    y: 66.04
- type: wire
  points:
  - x: 54.61
    y: 153.035
  - x: 54.61
    y: 153.67
- type: wire
  points:
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    y: 70.485
  - x: 57.15
    y: 70.485
- type: wire
  points:
  - x: 189.23
    y: 83.82
  - x: 189.23
    y: 106.045
- type: wire
  points:
  - x: 196.85
    y: 93.98
  - x: 200.66
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- type: wire
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  - x: 132.08
    y: 74.295
- type: wire
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    y: 163.83
- type: wire
  points:
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- type: wire
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    y: 74.295
  - x: 92.71
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- type: wire
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    y: 57.785
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    y: 170.815
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    y: 134.62
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    y: 147.955
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    y: 147.955
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    y: 73.66
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- type: wire
  points:
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    y: 132.08
  - x: 86.995
    y: 153.035
- type: wire
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    y: 81.28
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    y: 83.82
- type: wire
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    y: 97.79
  - x: 140.335
    y: 98.425
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    y: 170.815
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  points:
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    y: 153.035
  - x: 104.14
    y: 155.575
- type: wire
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    y: 106.045
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    y: 69.85
- type: wire
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    y: 66.04
  - x: 182.245
    y: 66.04
- type: wire
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    y: 132.08
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    y: 74.295
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    y: 87.63
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    y: 62.865
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    y: 62.865
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    y: 93.345
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    y: 104.775
- type: wire
  points:
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    y: 70.485
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    y: 70.485
- type: wire
  points:
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    y: 145.415
  - x: 62.23
    y: 133.35
- type: wire
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    y: 87.63
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    y: 87.63
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    y: 70.485
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    y: 81.915
- type: wire
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    y: 97.79
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    y: 97.79
- type: wire
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    y: 151.13
  - x: 41.91
    y: 153.035
- type: wire
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    y: 166.37
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    y: 170.815
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    y: 170.815
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- type: wire
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    y: 87.63
  - x: 194.31
    y: 93.345
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    y: 167.64
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- type: wire
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    y: 97.79
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    y: 97.79
- type: wire
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    y: 74.295
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    y: 74.295
- type: wire
  points:
  - x: 35.56
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