Ian MacGregor
Well-known member
Hi,
Quick question:
How many voltage regulators (LM317, 7815, etc.) can be daisy chained off each other? I don't know how to explain it that well, so check out the Gyraf SSL power supply: http://www.gyraf.dk/gy_pd/ssl/ssl_sch.gif
See how the 78L12 is getting its Vin from the Vin of the 7815 in series through a 10 ohm resistor? How does one go about figuring out the series resistor value? If I wanted +15, +12, AND +5, could I used the same arrangement, maybe a larger series resistor for the +5V regulator??
Thanks,
Ian
Quick question:
How many voltage regulators (LM317, 7815, etc.) can be daisy chained off each other? I don't know how to explain it that well, so check out the Gyraf SSL power supply: http://www.gyraf.dk/gy_pd/ssl/ssl_sch.gif
See how the 78L12 is getting its Vin from the Vin of the 7815 in series through a 10 ohm resistor? How does one go about figuring out the series resistor value? If I wanted +15, +12, AND +5, could I used the same arrangement, maybe a larger series resistor for the +5V regulator??
Thanks,
Ian