femo Posted December 1, 2004 Report Share Posted December 1, 2004 hi everybodyi'm searching for help about a nimh charger based on the telefunken's IC U2400B. i want to realize the circuit in the IC's datasheet but i don't know the meaning of this symbol. the only text about it is a "B value=3474" next to it. i really need help about Quote Link to comment Share on other sites More sharing options...
ante Posted December 1, 2004 Report Share Posted December 1, 2004 Hi Femo,Welcome to this forum.The symbol you attached is most likely a lamp (bulb). If you post the circuit it Quote Link to comment Share on other sites More sharing options...
femo Posted December 1, 2004 Author Report Share Posted December 1, 2004 a bulb you say. ok i've had some difficult to extract the image from the datasheet so i decide to attach it all. the circuit is at 12th page. maybe do you know what is the "B value=3474" next to this too?u2400b_2.pdf Quote Link to comment Share on other sites More sharing options...
ante Posted December 1, 2004 Report Share Posted December 1, 2004 Femo,I think the Quote Link to comment Share on other sites More sharing options...
femo Posted December 1, 2004 Author Report Share Posted December 1, 2004 that's it!! i've give a check about R14 and in the circuit on the 13th page i've found a value for it of 220 ohm /1W. right the resistance of a bulb if i'm not wrong. and on the second page R14 is right next to the transistor.ok i'll give it a try and i'll realize the circuit. i hope it works. thank you very much for your answere. ;Dbye bye!! Quote Link to comment Share on other sites More sharing options...
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