Author Topic: GW Instek GPP-3323 PSU fan noise on idle  (Read 431 times)

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Offline kakci

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  • Country: hu
GW Instek GPP-3323 PSU fan noise on idle
« on: May 08, 2019, 08:37:40 am »
Hello!

I'm planning to buy a PSU and i could find lots of infos about the Rigol and Siglent current models.
Also I checked the GPP-3323 but sadly not much review or teardown about that model exists on the net.

I'm especially interested in the noise factor (cooling fan), how loud is it on idle state?
If any1 could check it (or even document it) on the Instek GPP series I would be greatful.

Thanks.
 

Offline er12

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  • Country: fr
Re: GW Instek GPP-3323 PSU fan noise on idle
« Reply #1 on: May 13, 2019, 12:32:03 am »
Hi,
I bought a GPP-4323 last month. The fan was a nice surprise !

Without load the fan noise is very low, much quieter than my oscilloscope for example (GDS-2204E) !

The built quality is really good, an ADUC7060 with an ADR03 reference for each channel






The UI is very nice too.

« Last Edit: May 13, 2019, 12:47:32 am by er12 »
 
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Offline kakci

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Re: GW Instek GPP-3323 PSU fan noise on idle
« Reply #2 on: May 14, 2019, 06:29:53 am »
Thank you for your help and the teardown pictures. So would you recommend it if you would need to run it under small load (< 500mA) overnight in your room?
 

Offline er12

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  • Country: fr
Re: GW Instek GPP-3323 PSU fan noise on idle
« Reply #3 on: May 15, 2019, 08:04:15 pm »
Hi,
I did the the following test : channel 1 : 15v, channel 2 in load mode 250ma connected with channel 1, during more than 8 hours, the fan stay allways at the lowest speed.
For the noise, it's the same level than a good quality PC power supply (Seasonic) with a low load.
At a 3m distance, I can't hear the fan noise.

 

Offline kakci

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  • Country: hu
Re: GW Instek GPP-3323 PSU fan noise on idle
« Reply #4 on: May 16, 2019, 04:20:50 am »
Perfect thank you, Im gonna order the GPP 3323.
 

Offline embedded_tom

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  • Country: us
Re: GW Instek GPP-3323 PSU fan noise on idle
« Reply #5 on: June 13, 2019, 11:15:32 pm »
electrobob just did a nice review on the GPP-4323:

https://www.electrobob.com/gpp-4323-power-supply-review/
 
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