SPD3303X-E

[BillyO]

There does not seem to be a general thread on these power supplies, so I thought I'd start one with a generic enough title to serve as such.

That said, I do have a question.

I know you can series the two main supplies in this unit to get 64V.  My question is, can you then manually series the auxiliary supply to get a total of 69V @ 3.2A?

[modoran]

No, the 3rd channel is not galvanically isolated, it is derived from the 2nd channel.

[Performa01]

No, the 3rd channel is not galvanically isolated, it is derived from the 2nd channel.

You seem to confuse this with Rigol or something.

On the Siglent SPD3303X/X-E, all three power sources are independent and galvanically isolated.

So the final answer is: yes, we can!

[tautech]

And with a fresh reply from Siglent this picture is proof, admittedly it is a SPD3303C with wired series connections however it clearly shows the 3rd channel with a 5V setting used in the series chain.

[alm]

You seem to confuse this with Rigol or something.

On the Siglent SPD3303X/X-E, all three power sources are independent and galvanically isolated.

Indeed, Rigol has a fully adjustable third channel that's not isolated from channel 2, while Siglent has an extremely limited third channel that's fully isolated.

[tautech]

You seem to confuse this with Rigol or something.

On the Siglent SPD3303X/X-E, all three power sources are independent and galvanically isolated.

Indeed, Rigol has a fully adjustable third channel that's not isolated from channel 2, while Siglent has an extremely limited third channel that's fully isolated.

Yet, multiple SPD3000X/X-E models can be series'ed together to a max of 500V above mains ground.

Done it myself to 120VDC after confirmation from Siglent it is an design feature and accepted practice.

[daisizhou]

https://youtube.com/shorts/0mKmwa-MJRo?feature=share
Do you know how to adjust my SPD3303D?Especially the voltage of CH1 channel

[BillyO]

I'm sold.  Just put in my order. 

[BillyO]

Look what just came in the door, like, 5 minutes ago:

[BillyO]

And now a few minutes later ...

[BillyO]

Hmmm,

Is there a way to get EasyPower to remember your device?

I guess not.  A bit annoying.