You see I am a chinese,and I had a lot of "NOT FAKE LM9022 made by NS"
all brand new in org pack,and as me experiance in driving VFD stuffs
,I only used this chip in one project,and I think this chip is too old
for the current tech,by using only two mosfets and drived via a MCU
tim can replace this
I found this module via Ebay last week,and got one yeaterday,for
lighting up 6 IN-18 tubes at the same time,the module chip,the
mosfet,the transform get almost no heat,unbelieveable.
Efficiency:92.3%;
check it via:
http://www.ebay.com/itm/221413519989
details from the website
I was wonderring if you could show the circuit to me,I am just curious, why
the pcb looked such complicated.
2013/8/4
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