Hi,
I've a LG mobile phone fast desktop charger lying around with the following ratings
input 12V, 0.3A
output 4.2 V 0.5
it has 3 pins at the output, the battery fits into a slot over it and has a bicolour LED for charge indication (red - charging, green - done)
the circuit consists of 3 ICs
K1A494AP - PWM controller
LM358N - OP AMP
GMS81C1102 - 8 bit CMOS microcontroller.
My question is can this charger be used as a Ni-MH charger after modding the output voltage to 1.8/2.0 V.
also what is the function of the third pin on the charger and the battery?
[attachmentid=1381]
[attachmentid=1382]
Thanks and regards
Arup
I've a LG mobile phone fast desktop charger lying around with the following ratings
input 12V, 0.3A
output 4.2 V 0.5
it has 3 pins at the output, the battery fits into a slot over it and has a bicolour LED for charge indication (red - charging, green - done)
the circuit consists of 3 ICs
K1A494AP - PWM controller
LM358N - OP AMP
GMS81C1102 - 8 bit CMOS microcontroller.
My question is can this charger be used as a Ni-MH charger after modding the output voltage to 1.8/2.0 V.
also what is the function of the third pin on the charger and the battery?
[attachmentid=1381]
[attachmentid=1382]
Thanks and regards
Arup
