Products > Test Equipment

SPD3303X-E

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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:

--- Quote from: modoran on April 28, 2023, 07:44:31 am ---No, the 3rd channel is not galvanically isolated, it is derived from the 2nd channel.

--- End quote ---
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:

--- Quote from: Performa01 on April 28, 2023, 08:50:10 am ---You seem to confuse this with Rigol or something.

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

--- End quote ---
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.

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