Comments on: Two Adapters Survived Sudden Voltage Surge

By: Parasuraman S

Parasuraman S — Sun, 17 Sep 2023 10:36:26 +0000

Good observation and expertise! Many thanks for your comments and valuable inputs!

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By: ivan rivera

ivan rivera — Sun, 17 Sep 2023 02:44:36 +0000

Un gran saludo a todos
Segun mi creencia el abultamiento de los condensadores electrolíticos se debería al tiempo de uso ,la temperatura, producto de los pequeños espacios sin enfriamiento y fundamentalmente a la mala calidad de los dieléctricos y a la perdida de tamaño a traves del tiempo Saco esa conclusion al comparar estas fuentes de poder con las antiguas japonesas Sony Panasonics JVC Que al sufrir
transientes solo afectaban varistores y fusibles ,quedando el resto intacto Bueno creo que pase por alto que ahora estas fuentes funcionan a mayor velocidad de conmutación y las corrientes de fuga en los diodos que preceden a los condensadores electrolíticos, les provocan un aumento de su temperatura de trabajo
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A big greeting to all
According to my belief, the bulging of the electrolytic capacitors would be due to the time of use, the temperature, a product of the small spaces without cooling and fundamentally to the poor quality of the dielectrics and the loss of size over time. I draw that conclusion when comparing these. power supplies with the old Japanese Sony Panasonics JVC That when suffering
Transients only affected varistors and fuses, leaving the rest intact. Well, I think I overlooked that now these sources work at a higher switching speed and the leakage currents in the diodes that precede the electrolytic capacitors cause an increase in their temperature. job

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By: Parasuraman S

Parasuraman S — Sun, 17 Sep 2023 00:08:14 +0000

In reply to Imoudu.O.

When testing the primary with Ring Tester, if there are any shorts in the secondary, it won't light up. So, to a certain extent, that check is enough! Many thanks for your comments!

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By: Parasuraman S

Parasuraman S — Sun, 17 Sep 2023 00:06:47 +0000

In reply to Anwar Yunas Shiekh.

Using a used capacitor is not advisable, however good it might be on test. It can fail on load. Many thanks for your comments!

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By: Imoudu.O

Imoudu.O — Sat, 16 Sep 2023 18:51:57 +0000

Good,fast fix.No method of testing secondary side of smps transformer yet I suppose!!

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By: Parasuraman S

Parasuraman S — Sat, 16 Sep 2023 15:02:42 +0000

In reply to NATARAJAN.

Many thanks, dear Natarajan!

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By: Parasuraman S

Parasuraman S — Sat, 16 Sep 2023 15:01:58 +0000

In reply to Yogesh Panchal.

Many thanks!

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By: Parasuraman S

Parasuraman S — Sat, 16 Sep 2023 15:01:30 +0000

In reply to Waleed Rishmawi.

Many thanks, dear friend!

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By: Parasuraman S

Parasuraman S — Sat, 16 Sep 2023 15:01:10 +0000

In reply to Albert van Bemmelen.

Many thanks for your comments and encouragement!

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By: Anwar Yunas Shiekh

Anwar Yunas Shiekh — Sat, 16 Sep 2023 14:36:55 +0000

When I replace a collection of capacitors I keep the good ones so I can later make a fast repair while I wait for new ones to come in.

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