mwpmo
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- Feb 25, 2004
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I just finish PPA Battery Board (Fast Charging) with the following config. (Standard Config from tangent's page)
12 x 800mA AAA Battery
LM1086-ADJ
R1 1K
R2 4.7
R4 10K
R5 1.2K
R6 short
R7 short
R8 open
Install everything and check the voltage between R4/R5 and ground is about 1.3V.
Turn on the power supply (+24V) and the LED is not flashing !!!
Both LM1086 and R2 is warm and after half an hour, I turn off the power and recheck the voltage between R4/R5 and ground, it is about 1.7V.
Any idea why the LED is not flashing ?
12 x 800mA AAA Battery
LM1086-ADJ
R1 1K
R2 4.7
R4 10K
R5 1.2K
R6 short
R7 short
R8 open
Install everything and check the voltage between R4/R5 and ground is about 1.3V.
Turn on the power supply (+24V) and the LED is not flashing !!!
Both LM1086 and R2 is warm and after half an hour, I turn off the power and recheck the voltage between R4/R5 and ground, it is about 1.7V.
Any idea why the LED is not flashing ?