8/18/2019 9V Charger RevB

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Improved 9.6V Compact Fast Charger Phil Salas – AD5X

Introdction

I had an article p!lished in the "ovem!er #$$% &S' on a compact (ast charger (or theF')*+,. Since then- Ive started sing 9.6V %$$$ mah /0C "i12 !atteries (or porta!leoperation- originall3 4ith m3 F')*+, and no4 4ith m3 IC),$%. As a reslt- Ive no4modi(ied the compact (ast charger so that 3o can select charging crrents o( either ,5$ma or +$$$ ma originall3 6$$ ma- 4hich 4or7s 4ell 4ith !oth +6$$0+*$$0##5$ ma AA "i12 9.6 volt pac7s- and the %$$$ mah /0C "i12 pac7s I also se. 8i7e the earlier proect- this charger is sed 4ith a +%.*V DC sppl3. So i( 3o have a miniatre DCsppl3 li7e the 1F:);+$%- 3o can se it !oth (or po4ering 3or F')*+, or IC),$%- andalso (or charging "i12 !atteries. 'his ta7es p mch less space in 3or porta!le pac7than having to inclde !oth a separate charger and po4er sppl3. As an e

8/18/2019 9V Charger RevB

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connectors 4ith Po4erPole connectors. For those o( 3o 4ith the E;/' BPP on an F')*+,- 3o can se this same Po4erPole)to)#.+mm plg adapter ca!le (or charging the BPP.As 3o can see (rom the photo @charger inside+.pg- the per()!oard is monted 4ith thecomponents (ace)do4n.

In m3 original design- a charging crrent o( 6$$ ma reslted in the metal !o< covergetting (airl3 4arm- !t e