Article Self-Switching Power Supply Self-Switching Power Supply 0I The proposed power supply switches itself off when no current is drawn by the load. How this is done is shown in the circuit diagram, ...

All the ATX PSU's we have found dont come with a power switch, which is essential for our systems.<P>Can any one let me no of any PSU's at about 250W with a power switch, dont need a restart ...

He first considered using an LNK304 off-line switching PSU chip to derive his low voltages, but later moved to an off-the-shelf switch-mode board. So far two prototype designs have been completed ...

Block diagram I used transformer just because I had it laying around. The switching preregulator is actually buck converter realised with LM2576-ADJ and it keeps constant 1.5 V on the LDO. The MCU I ...

Best option is to replace the PSU - most, if not all sold in the EU are auto switching (I think they passed a law). I have ordered twice from Pixmania and they failed to deliver on both occasions.