I did the DDL and it´s ok. Nothing to say about it.
But once time I got the mA an Volts to drive my laser, can I use 2 NiMH (AA or AAA) and a resitor in series with diode?
I almost think that answer is not. but WHY if the Ohm´s Law is the LAW ?
My diode is running at 2.5 Vots and 100 mA (an 8x DVD)
With those info, what resistor I need?
V=RI -> R=I/V -> R= 0,01A/2.5Volts = 0,04Ohms
It´s very little... not a comercial value.
Is there something wrong?
A just want do a portable laser pen, and I don´t have the bat. CR123 and chagers for it.
I´m really confused!
But once time I got the mA an Volts to drive my laser, can I use 2 NiMH (AA or AAA) and a resitor in series with diode?
I almost think that answer is not. but WHY if the Ohm´s Law is the LAW ?
My diode is running at 2.5 Vots and 100 mA (an 8x DVD)
With those info, what resistor I need?
V=RI -> R=I/V -> R= 0,01A/2.5Volts = 0,04Ohms
It´s very little... not a comercial value.
Is there something wrong?
A just want do a portable laser pen, and I don´t have the bat. CR123 and chagers for it.
I´m really confused!