I'm using a 350VA torioidal step down transformer with 18Vrms output and following the transformer I have a diode bridge comprised of 1n4001's. Right at power on I'm litterally blowing up the diodes (plastic casing blasts off, destorys the diode).
Is this happening due to not enough reverse recovery (50V) of the 1n4001 and can't handle the inrush current? Do I need a higher VR and higher current diode for the bridge?
Is this happening due to not enough reverse recovery (50V) of the 1n4001 and can't handle the inrush current? Do I need a higher VR and higher current diode for the bridge?
You need to be looking at least 100v diodes with many amps rating.
I use a bridge rectifier RS 395-4332 which is 35 amp 200volts.
That's quite a high rating but they are cheap enough.
When you first apply power to the transformer the smoothing capacitors are virtually a short circuit for a while.
I use a bridge rectifier RS 395-4332 which is 35 amp 200volts.
That's quite a high rating but they are cheap enough.
When you first apply power to the transformer the smoothing capacitors are virtually a short circuit for a while.
- Status
- This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.