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IC LM317T

K

kengloong

Jan 1, 1970
0
I'm currently troubleshoot a UPS (Uninterruptible Power Supply), for you
information, I already replaced 4pcs of Power MOSFET STP60NF06 t
STP60N06. But the UPS is still not working, the problem now is when the A
supply to the UPS, there is an output. Once I swithched off the AC supply
the UPS indicated fail and no AC supply to output socket.

I'm suspected the LM317T faulty but I don't know how to test this 3 legge
IC. Can you please shown me how to test this component?

Can you please give me more clearer explaination how the IC LM317T work
operation.

I hope you can help me out on this.

Thanks & best regards,
Keng Loong, Liew
Kota Kinabalu, Sabah, East Malaysia.
Mobile: +60138808200
Email: [email protected], [email protected]
 
J

John Fields

Jan 1, 1970
0
I'm currently troubleshoot a UPS (Uninterruptible Power Supply), for your
information, I already replaced 4pcs of Power MOSFET STP60NF06 to
STP60N06. But the UPS is still not working, the problem now is when the AC
supply to the UPS, there is an output. Once I swithched off the AC supply,
the UPS indicated fail and no AC supply to output socket.

I'm suspected the LM317T faulty but I don't know how to test this 3 legged
IC. Can you please shown me how to test this component?

Can you please give me more clearer explaination how the IC LM317T work/
operation.
 
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