01-06-2013, 08:02 PM
Looking good.
For future reference the National Semiconductors brief AB47 shows how to use the LM317 to regulate a high voltage. (Now renumbered by TI as http://www.ti.com/lit/an/snva583/snva583.pdf.)
Using a LM317L would reduce the maximum quiescent current to 2.5mA allowing R5 to be raised to 470 ohm with the corresponding reduction in power wasted in R6 (fig 1)
Jim
For future reference the National Semiconductors brief AB47 shows how to use the LM317 to regulate a high voltage. (Now renumbered by TI as http://www.ti.com/lit/an/snva583/snva583.pdf.)
Using a LM317L would reduce the maximum quiescent current to 2.5mA allowing R5 to be raised to 470 ohm with the corresponding reduction in power wasted in R6 (fig 1)
Jim
