I have a bridge rectifier who's working peak reverse voltage 100V
and RMS reverse voltage is 70V. I am wondering if I can use this retifier in place of the KBP210 in this video.
http://www.engadget.com/2007/10/14/tap-into-the-phone-companys-current-if-you-dare/
And I don't have the LM317L regulator but I have the LM317T regulator can I use this in place of the LM317L.
I am looking at the LM317T characteristics and it say's max input-output voltage differential 40 V what does this mean? Is this just saying the difference between the input and the output voltage can be no greater then 40 volts.
Problems and questions:
My silicon bridge rectifer radioshack part 276-1152 has a max rating of 70 volts RMS so will this burn out from a 90 volt 20 hz AC pulse on a phone line? Is their anyway to fix this so the rectifier never gets more then 70 volts?
If you look at the video they are using 2 resistors 510 and 240 ohms.
Is their any reason on these values for the regulator ?
For the bridge rectifer does it matter which AC leg I use for the green and red wires or can I just put green on any of the 2 AC input legs of the rectifier and the red on the other one?
I am also wondering what the current down the green and red wires is usually because the regulator can only take 1.5 amps or less?
I don't think current is going to be a problem but if anybody knows what the range of the current typical is down the wire please let me know.
Also for the regulator the input voltage is going to be around 48 v DC and 90 v AC when ringing occurs. Will this damage any components like the regulator?
Note I have also regulators part 276-1771 , part 276-1770 these regulators are for producing steady 12 volt , and 5 volts. But they have a max input voltage of 35 v. So I think if I used these I would need to drop the voltage before supplying it to the retifier. But the LM317T does not specify a max input rating only a power dissipation of 15W and input/output voltage differential? So I am thinking it is saver to use the LM317T in place of the LM317L? Anyway if I knew the typical current on a phone line I could figure out the max voltage from the power dissipation of 15 watts I believe? (Pmax/I =Vmax)
Thanks for any help in clearing up these questions
and RMS reverse voltage is 70V. I am wondering if I can use this retifier in place of the KBP210 in this video.
http://www.engadget.com/2007/10/14/tap-into-the-phone-companys-current-if-you-dare/
And I don't have the LM317L regulator but I have the LM317T regulator can I use this in place of the LM317L.
I am looking at the LM317T characteristics and it say's max input-output voltage differential 40 V what does this mean? Is this just saying the difference between the input and the output voltage can be no greater then 40 volts.
Problems and questions:
My silicon bridge rectifer radioshack part 276-1152 has a max rating of 70 volts RMS so will this burn out from a 90 volt 20 hz AC pulse on a phone line? Is their anyway to fix this so the rectifier never gets more then 70 volts?
If you look at the video they are using 2 resistors 510 and 240 ohms.
Is their any reason on these values for the regulator ?
For the bridge rectifer does it matter which AC leg I use for the green and red wires or can I just put green on any of the 2 AC input legs of the rectifier and the red on the other one?
I am also wondering what the current down the green and red wires is usually because the regulator can only take 1.5 amps or less?
I don't think current is going to be a problem but if anybody knows what the range of the current typical is down the wire please let me know.
Also for the regulator the input voltage is going to be around 48 v DC and 90 v AC when ringing occurs. Will this damage any components like the regulator?
Note I have also regulators part 276-1771 , part 276-1770 these regulators are for producing steady 12 volt , and 5 volts. But they have a max input voltage of 35 v. So I think if I used these I would need to drop the voltage before supplying it to the retifier. But the LM317T does not specify a max input rating only a power dissipation of 15W and input/output voltage differential? So I am thinking it is saver to use the LM317T in place of the LM317L? Anyway if I knew the typical current on a phone line I could figure out the max voltage from the power dissipation of 15 watts I believe? (Pmax/I =Vmax)
Thanks for any help in clearing up these questions
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