I am very aware of the value of using constant current sources with my diodes, having started off with the venerable Daedal driver several years ago. But my question here is:
If I want to run a simple test setup with a diode from a battery, say for the purposes of the math, a pair of 1/2AAs rated 1100mAh, for a total of 7.2vdc (we'll say 7.4vdc if they're a little over rated voltage as they often are when brand new).
If I put a series resistor between them and a diode that is rated for- say, 1.25A, but my resistor, in combination with the Vf of the diode, is set so that at the battery's MAXIMUM charge, could never pass, say, more than 500mA to the diode - what are the risks I'm not taking into account with this setup? Am I likely to in any way, barring simple carelessness, to pop my diode in this manner?
Thanks for your comments.
Dave
If I want to run a simple test setup with a diode from a battery, say for the purposes of the math, a pair of 1/2AAs rated 1100mAh, for a total of 7.2vdc (we'll say 7.4vdc if they're a little over rated voltage as they often are when brand new).
If I put a series resistor between them and a diode that is rated for- say, 1.25A, but my resistor, in combination with the Vf of the diode, is set so that at the battery's MAXIMUM charge, could never pass, say, more than 500mA to the diode - what are the risks I'm not taking into account with this setup? Am I likely to in any way, barring simple carelessness, to pop my diode in this manner?
Thanks for your comments.
Dave