sandbox
Junior Member level 1
Hi all,
I am trying to build the energy harvesting circuit from the following pdf : https://web.eecs.umich.edu/~prabal/pubs/papers/kuo10hijack.pdf
It is a energy harvesting circuit for extracting power from the audio jack of a phone
The trouble is that i cant find the part they are using on digikey or anywhere else () . The prime factor for choosing the transformer is that it has a primary inductance of 25uH and 1:20 turns ration, achieves efficient power transfer at a frequency of 20Khz which is close to the upper limit of what a phone's audio jack can produce.
I could however find the following part : LPD6235 https://www.farnell.com/datasheets/1681916.pdf , its not labelled as a transformer but a coupled inductor, is it ok i swap the original part for any variant of these ? if not could you please suggest a part number that i can use as a replacement ?
Thanks in advance for all your help,
sandbox
I am trying to build the energy harvesting circuit from the following pdf : https://web.eecs.umich.edu/~prabal/pubs/papers/kuo10hijack.pdf
It is a energy harvesting circuit for extracting power from the audio jack of a phone
The trouble is that i cant find the part they are using on digikey or anywhere else () . The prime factor for choosing the transformer is that it has a primary inductance of 25uH and 1:20 turns ration, achieves efficient power transfer at a frequency of 20Khz which is close to the upper limit of what a phone's audio jack can produce.
I could however find the following part : LPD6235 https://www.farnell.com/datasheets/1681916.pdf , its not labelled as a transformer but a coupled inductor, is it ok i swap the original part for any variant of these ? if not could you please suggest a part number that i can use as a replacement ?
Thanks in advance for all your help,
sandbox
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