Hello,
I'm not sure if this is the best place to post this question but here it goes. Also I'd just like to point out that I am a complete beginner. I will clarify to the best of my ability if clarification is needed.
I'm a student in college and i'm part of a electrical engineering group. Now I've been tasked with building a voltage regulator circuit with an input of about 8 volts and an output of 5V and 1.5A. The output would be used to power a Raspberry Pi microcontroller.
Using the internet and PSpice, I managed to configure the following circuit using an LM-317T voltage regulator.
Now upon testing in person, at first I burned out the 3.3 Ohm resistor because that was definitely too much current going through but for a little bit the reading were correct (i.e. around 1.5A and 5V).
Finally here is my question: Is this a proper circuit to power a Raspberry Pi microcontroller if connected before the 3.3 Ohm resistor or is it bad because of the small resistor value?
If not, what would be a good alternative?
I'd just like to point out a few things:
-firstly, someone told me that the 3.3 ohm resistor only acts as a sort of shunt resistor to measure the current but when I change its value on PSpice it also changes the current, therefore I'm not sure.
- secondly, I've already tried an LM7805 regulator but could not get the 1.5A output desired, probably due to my inexperience.
Thank you for any help you can provide.
I'm not sure if this is the best place to post this question but here it goes. Also I'd just like to point out that I am a complete beginner. I will clarify to the best of my ability if clarification is needed.
I'm a student in college and i'm part of a electrical engineering group. Now I've been tasked with building a voltage regulator circuit with an input of about 8 volts and an output of 5V and 1.5A. The output would be used to power a Raspberry Pi microcontroller.
Using the internet and PSpice, I managed to configure the following circuit using an LM-317T voltage regulator.
Now upon testing in person, at first I burned out the 3.3 Ohm resistor because that was definitely too much current going through but for a little bit the reading were correct (i.e. around 1.5A and 5V).
Finally here is my question: Is this a proper circuit to power a Raspberry Pi microcontroller if connected before the 3.3 Ohm resistor or is it bad because of the small resistor value?
If not, what would be a good alternative?
I'd just like to point out a few things:
-firstly, someone told me that the 3.3 ohm resistor only acts as a sort of shunt resistor to measure the current but when I change its value on PSpice it also changes the current, therefore I'm not sure.
- secondly, I've already tried an LM7805 regulator but could not get the 1.5A output desired, probably due to my inexperience.
Thank you for any help you can provide.