STEVAL-ILB001V2 STMicroelectronics, STEVAL-ILB001V2 Datasheet - Page 23

• Manufacturer Part Number: STEVAL-ILB001V2
• Description: BOARD EVAL BIPO SOLUTION FOR PFC
• Manufacturer: STMicroelectronics

Specifications of STEVAL-ILB001V2

• Mfg Application Notes: HF Ballast AppNote
• Design Resources: STEVAL-ILB001V2 Gerber Files STEVAL-ILB001V2 Schematic STEVAL-ILB001V2 Bill of Materials
• Main Purpose: Lighting, Ballast Control
• Embedded: No
• Utilized Ic / Part: L6569
• Primary Attributes: 40W HF Ballast
• Secondary Attributes: Discontinuous Mode Boost Converter
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-6409; STEVAL-ILB001V2

AN2349
5
5.1
5.2
T Transformer and L
220V design
The transformer T has to be choosen as following:
1.
2.
3.
4.
The Boost inductor L1 has to be choosen as following:
1.
2.
3.
120V design
The transformer T has to be choosen as following:
1.
2.
3.
4.
The Boost inductor L1 has to be choosen as following:
1.
2.
3.
The core type is N87-EFD25/13/9 by Epcos
The wire gauge used to wind the transformer is 0.28 mm
The number of primary winding is 150 turns, the air gap lenght has been chosen in
order to obtain a saturation current of about 1.6A and an inductance value of 2.2mH ±
2.5%
The number of secondary winding is 2 turns for each of the two secondaries
The core type is N27-E20/6 (EF20) by Epcos
The number of primary winding is 150 turns, the air gap length has been chosen in
order to obtain a saturation current of about 1.7A and an inductance value of 1.8mH ±
2.5%
The wire gauge to wind the transformer is 0.22 mm
The core type is N87-EFD25/13/9 by Epcos
The wire gauge used to wind the transformer is 0.28 mm
The number of primary winding is 150 turns, the air gap lenght has been chosen in
order to obtain a saturation current of about 1.7A and an inductance value of 2.1mH ±
2.5%
The number of secondary winding is 3 turns in the PFC stage and 2 turns in the
converter stage
The core type is N27-E20/6 (EF20) by Epcos
The number of primary winding is 150 turns, the air gap lenght has been chosen in
order to obtain a saturation current of about 1.7A and an inductance value of 1.5mH ±
2.5%
The wire gauge to wind the transformer is 0.22 mm
1
inductor specifications
T Transformer and L1 inductor specifications
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