Can anyone please advise any widely available fixed voltage regulator to take input voltage between 40-60V and output 24V or 12V? Thanks
Can anyone please advise any widely available fixed voltage regulator to take input voltage between 40-60V and output 24V or 12V? Thanks
What is the MAX Input Voltage in this regulator? I am sorry, I am not so good in reading and understanding datasheets
From the datasheet;
"Since the regulator is “floating” and sees only the input-to-output differential voltage, supplies of several hundred volts can be regulated as long as the maximum input to output differential is not exceeded,"
Thanks and Regards;
Gadelhas
Lm2576hv-12 : 0.5a ≤ iload ≤ 3a : 15v ≤ vin ≤ 60v
lm2576hv-15 : 0.5a ≤ iload ≤ 3a : 18v ≤ vin ≤ 60v
lm2576hv-adj : 0.5a ≤ iload ≤ 3a : 4v ≤ vin ≤ 60v
"If the Earth were a single state, Istanbul would be its capital." Napoleon Bonaparte
You can always pre-regulate. Just use an NPN transistor that has a Vce that is 150% of your input voltage, and put two resistors across the device. One from GND to Base, the other from Collector to Base. Choose resistors that give a current flow of about 5% of the output current. Connect the Emitter to the input of your regulator. Put a small capacitor (1uF) on the input of the regulator to GND.
If you choose your resistors properly, you can drop as much or as little voltage across the transistor as you wish. Now you can use a 20V max regulator, if that is what you have.
The transistor and resistors will, of course dissiplate some power and should be sized accordingly.
Charles Linquist
Charles, Just exactly what I was thinking... PreRegulator.... Megahertz, Just search the internet with the keyword preregulator and see what you find.
Dave Purola,
N8NTA
EN82fn
Moved from Schematics.
Robert
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