Author Topic: ES030-5 Delta Elektronika Power Supply schematic needed  (Read 328 times)

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Offline hubTopic starter

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ES030-5 Delta Elektronika Power Supply schematic needed
« on: December 21, 2024, 01:13:39 am »
My Delta Elektronika ES030-5 power supply was damaged during normal operation (continuous load about 60% max power for 2-3 hours).
https://www.delta-elektronika.nl/products/es150-series
I found several damaged components – transistor (desoldered), converter controller, passive components.

I would like to fix it, but I can't read the value of some elements. Does anyone have such a power supply and could read the values of the components next to the transistor? I searched for a schematic of the power supply, but to no avail. I asked the manufacturer, but he does not provide any service manual or schematic.

I attach a view of the power supply board.
 
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Offline cte

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Re: ES030-5 Delta Elektronika Power Supply schematic needed
« Reply #1 on: December 22, 2024, 07:42:34 am »
ET has a circuit diagram, but it looks like a different revision:

https://elektrotanya.com/delta_elektronika_es-030-5_0-30v-5a_labor-supplies_sm.pdf/download.html
⚡ To avoid electric shock, ensure that your instrument is correctly grounded.
 

Offline hubTopic starter

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Re: ES030-5 Delta Elektronika Power Supply schematic needed
« Reply #2 on: December 24, 2024, 09:08:38 am »
Thanks for the schematic.

The diode in the SOT-143 package connected to the transistor gate (I read a part of the signature - JT) is probably BAS28. In the older version, it was 1N4148.
« Last Edit: December 24, 2024, 09:13:47 am by hub »
 


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