Apr 20, 2013 #1 N nikhillife11 Member level 2 Joined Jan 15, 2011 Messages 52 Helped 4 Reputation 8 Reaction score 3 Trophy points 1,288 Activity points 1,671 Hello All, I want to build a PoE adaptor whose input is from a 48V / 2A battery and the output current from the PoE port should be not more than 0.5A. Basically Input : 48V /2A Output: 48V / 0.5A Can anyone guide me on the same Regards Nikhil
Hello All, I want to build a PoE adaptor whose input is from a 48V / 2A battery and the output current from the PoE port should be not more than 0.5A. Basically Input : 48V /2A Output: 48V / 0.5A Can anyone guide me on the same Regards Nikhil
Apr 20, 2013 #2 X xbased Member level 1 Joined Apr 4, 2013 Messages 38 Helped 5 Reputation 10 Reaction score 5 Trophy points 1,288 Location Greece Activity points 1,492 Use 2 pairs for data, the 2 remaining pairs for the DC power. Pins 1-2-3-6 have to be used for data on both ends.
Use 2 pairs for data, the 2 remaining pairs for the DC power. Pins 1-2-3-6 have to be used for data on both ends.
Apr 20, 2013 #3 N nikhillife11 Member level 2 Joined Jan 15, 2011 Messages 52 Helped 4 Reputation 8 Reaction score 3 Trophy points 1,288 Activity points 1,671 xbased said: Use 2 pairs for data, the 2 remaining pairs for the DC power. Pins 1-2-3-6 have to be used for data on both ends. Click to expand... Thanks for the reply buddy But, I want help with designing the 48V to 48V/0.5A supply. I need help with that Regards Nikhil
xbased said: Use 2 pairs for data, the 2 remaining pairs for the DC power. Pins 1-2-3-6 have to be used for data on both ends. Click to expand... Thanks for the reply buddy But, I want help with designing the 48V to 48V/0.5A supply. I need help with that Regards Nikhil
Apr 20, 2013 #4 X xbased Member level 1 Joined Apr 4, 2013 Messages 38 Helped 5 Reputation 10 Reaction score 5 Trophy points 1,288 Location Greece Activity points 1,492 So you need help designing the power supply circuit limiting the 48v/2A to 48v/0.5A? Maybe it helps: http://www.dz863.com/circuits-26-83...-from-24V-to-96V-Input-Application-Schematic/ Last edited: Apr 20, 2013
So you need help designing the power supply circuit limiting the 48v/2A to 48v/0.5A? Maybe it helps: http://www.dz863.com/circuits-26-83...-from-24V-to-96V-Input-Application-Schematic/
Apr 22, 2013 #5 N nikhillife11 Member level 2 Joined Jan 15, 2011 Messages 52 Helped 4 Reputation 8 Reaction score 3 Trophy points 1,288 Activity points 1,671 Hey Xbased, Thanks for the help. Also can you help me with what magnetics (PoE Transformer) that I can use for GE ports actually. Regards Nikhil - - - Updated - - - Hey Xbased, Thanks for the help. Also can you help me with what magnetics (PoE Transformer) that I can use for GE ports actually. Regards Nikhil
Hey Xbased, Thanks for the help. Also can you help me with what magnetics (PoE Transformer) that I can use for GE ports actually. Regards Nikhil - - - Updated - - - Hey Xbased, Thanks for the help. Also can you help me with what magnetics (PoE Transformer) that I can use for GE ports actually. Regards Nikhil
Apr 22, 2013 #6 X xbased Member level 1 Joined Apr 4, 2013 Messages 38 Helped 5 Reputation 10 Reaction score 5 Trophy points 1,288 Location Greece Activity points 1,492 Check these: http://www.silvertel.com/DataSheets/Complementary Products/Magnetics/Pulse/H2019.pdf http://www.abracon.com/Magnetics/lan/ARJP11C.PDF **broken link removed**
Check these: http://www.silvertel.com/DataSheets/Complementary Products/Magnetics/Pulse/H2019.pdf http://www.abracon.com/Magnetics/lan/ARJP11C.PDF **broken link removed**
Apr 23, 2013 #7 T tantudaisu Member level 3 Joined Nov 18, 2010 Messages 56 Helped 8 Reputation 16 Reaction score 7 Trophy points 1,288 Activity points 1,615 xbased said: So you need help designing the power supply circuit limiting the 48v/2A to 48v/0.5A? Maybe it helps: http://www.dz863.com/circuits-26-83...-from-24V-to-96V-Input-Application-Schematic/ Click to expand... 1. What would be the duty cycle of such circuit? 2. How to calculate flyback transformers inductance (mH), when using 1:1 ? -- tantudaisu --
xbased said: So you need help designing the power supply circuit limiting the 48v/2A to 48v/0.5A? Maybe it helps: http://www.dz863.com/circuits-26-83...-from-24V-to-96V-Input-Application-Schematic/ Click to expand... 1. What would be the duty cycle of such circuit? 2. How to calculate flyback transformers inductance (mH), when using 1:1 ? -- tantudaisu --