ic controlled emergency light with charger
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susan
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Posts: 1
Joined: Apr 2010
#1
14-04-2010, 05:33 PM


I am doing my mini project and implimentation on topic ic controlled emergency light with charger,I got the circuit from electronics for you.at the final stage which includes the mosfet ,transformer and light I am not getting the output.and also interested in nowing more details of the circuit,so that i can have a deeper knowledge regarding the topic.
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vinith vinny
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#2
20-04-2012, 03:02 PM

hey iam vinith.I also want a complete documentation on "ic controlled emergency lamp with charger" as soon as possible. can u please help me out.....My email id is vinithkankani@ymail.com
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seminar flower
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#3
28-09-2012, 05:33 PM

IC Controlled Emergency Light with Charger


.pdf   IC.pdf (Size: 275.55 KB / Downloads: 18)

The circuit shown here is that of
the IC controlled emergency
light. Its main
features are: automatic
switching-on of the light
on mains failure and battery
charger with overcharge
protection.
When mains is absent,
relay RL2 is in deenergised
state, feeding
battery supply to inverter
section via its N/
C contacts and switch
S1. The inverter section
comprises IC2 (NE555)
which is used in stable
mode to produce sharp
pulses at the rate of 50
Hz for driving the
MOSFETs. The output of
IC3 is fed to gate of
MOSFET (T4) directly
while it is applied to
MOSFET (T3) gate after
inversion by transistor
T2. Thus the power amplifier
built around
MOSFETs T3 and T4
functions in push-pull
mode.
The output across
secondary of transformer
X2 can easily drive a
230-volt, 20-watt fluorescent
tube. In case light
is not required to be on
during mains failure,
simply flip switch S1 to
off position.
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