Power supply circuit for low-voltage fluorescent lamps. Scheme, description

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Power supply circuit for low-voltage fluorescent lamps. Encyclopedia of radio electronics and electrical engineering

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Encyclopedia of radio electronics and electrical engineering / Lighting

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Power supply circuit for low-voltage fluorescent lamps

The circuit shown in the figure allows you to connect any low-voltage fluorescent lamps with a power of 4 to 14 W, such as: LB4-2, LB4-7, LB6-2, LB6-7, LB8-1, LEC8, LBE10, LB18-1, TL4W /33, TL6W/33, TL6W/54, TL8W/33, TL8W/840.

Construction and details

R1	10 kΩ, 0,25 W
R2 Adjust the brightness of the lamp.	470 Ohm, SP-...
R3	2,2 kΩ, 0,25 W
C1	10uF-15v
C2	0,33 uF
VT1 Installed on a radiator 25 cm square.	KT805AM, KT841A, KT842A, KT847A, etc.
VD1	KD411AM

Transformer

II is wound first, then the insulation layer, then I is wound, the insulation layer is wound III.

lamp power, Tues	Upit = 6 V			Upit = 12 V			Magneto the wire
lamp power, Tues	I PEV 0,2 mm	II PEV 0,4 mm	III PEVTL-2 0.15. ..0,2 mm	I PEV 0,2 mm	II PEV 0,4 mm	III PEVTL-2 0.15. ..0,2 mm	Magneto the wire
4	6	12	80	6	22	60	B26, B30 M2000NM
6	7	12	100	6	22	80	B26, B30 M2000NM
10-14	8	12	120	6	22	110	W7x7, M4000

Publication: cxem.net

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