I'm busy with a project which I need to power on 5 relays at the same time.
The relay's are 5V each and consume 150mA when powered.
So in total they should draw 750mA
I bought a transformer but now am not sure its 'powerful' enough?
Its a 230V/12V - 3VA 50Hz transformer.
Does that mean it can put out 3V at 1A (ie 5V at 3/5A?)
Would that mean is too small to drive all my relays on at the same time? I would need a 750mA * 5V (3.75VA) Transformer?
I would have to put the output of the transformer through a rectifier and then a 5V regulator - would that make things even worse?
What would happen if the transformer is too small to power all the relay - would they just not all power on, or would the relay eventually burn out?
The relay's are 5V each and consume 150mA when powered.
So in total they should draw 750mA
I bought a transformer but now am not sure its 'powerful' enough?
Its a 230V/12V - 3VA 50Hz transformer.
Does that mean it can put out 3V at 1A (ie 5V at 3/5A?)
Would that mean is too small to drive all my relays on at the same time? I would need a 750mA * 5V (3.75VA) Transformer?
I would have to put the output of the transformer through a rectifier and then a 5V regulator - would that make things even worse?
What would happen if the transformer is too small to power all the relay - would they just not all power on, or would the relay eventually burn out?