N
Nevo
- Jan 1, 1970
- 0
I'm designing a power supply for a circuit.
My circuit uses 3.3 volts.
The voltage regulator I've chosen has a maximum dropout of 1.5V.
The bridge rectifier I've chosen has a maximum forward voltage of 1V.
Question: What minimum voltage do I need on the secondary of my transformer?
On the face of things, I'd need 3.3 + 1.5 + 1 = 5.8V.
However, the transformer's secondary is AC and is measured in RMS. Do I
multiply the transformer's secondary voltage by sqrt(2) to get the DC
voltage when doing this calculation?
My circuit uses 3.3 volts.
The voltage regulator I've chosen has a maximum dropout of 1.5V.
The bridge rectifier I've chosen has a maximum forward voltage of 1V.
Question: What minimum voltage do I need on the secondary of my transformer?
On the face of things, I'd need 3.3 + 1.5 + 1 = 5.8V.
However, the transformer's secondary is AC and is measured in RMS. Do I
multiply the transformer's secondary voltage by sqrt(2) to get the DC
voltage when doing this calculation?