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G8MNY > TECH 05.01.03 13:47l 29 Lines 1278 Bytes #999 (0) @ WW
BID : 36730_GB7CIP
Read: GUEST OE7FMI
Subj: 12V Fluorescent Tube Inverter
Path: DB0MRW<DB0PV<OE2XOM<OE5XBL<OE3XSR<OK0PCC<OK0PAD<OK0PPL<RZ6HXA<SP7MGD<
7M3TJZ<HA3PG<IK1ZNW<EA7URC<GB7CRV<GB7CIP
Sent: 030105/0929Z @:GB7CIP.#32.GBR.EU #:36730 [Caterham] $:36730_GB7CIP
From: G8MNY@GB7CIP.#32.GBR.EU
To : TECH@WW
Very Easy Fluorescent Tube Inverter Circuit 12 DC to 220 AC 6 - 20 W
+ 12 V
+----+-----------------------------------+ !! |----------++
| | | !! / ||
555 -+----+- 1M / !! \ ----
|8 4| / 12v \ !! / 220v | |
+--|------|-------- >\ 1A / !! \ | |
+--+6 | / c | !! / | |
| | | | b |/ !! \ ----
0.1- +--+2 3+----------+ +-/100 R/--------| !! / ||
0.001 | | | / | TIP 41 |\ |----------++
--- | | \<---- e >
--- |5 1| / |
| -+----+- \ 4k7 |
|.01= | | |
+---+----+-----------+-----------------------+
Tune 1 M for +- 10 KHz, and maximum efficiency / resonance from transformer.
Tune 4k7 for desired current / brightness.
Heatsink TIP 41 for currents > 300 ma.
From Chrissi ZR6CPB
73 De John, G8MNY @ GB7CIP
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