| Country | Bulgaria |
| Note | Python, Open ERp, |
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31
on: October 13, 2024, 06:43:59 18:43
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| Started by PeteZ - Last post by PeteZ | ||
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32
on: October 12, 2024, 08:37:36 20:37
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| Started by Archetix - Last post by Archetix | ||||||
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33
on: October 11, 2024, 08:45:54 20:45
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34
on: October 11, 2024, 05:19:25 17:19
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| Started by sadman - Last post by PM3295 | ||
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On one of the HP repair forums, it was mentioned that, there are some errors in the circuit diagram shown in the service manual. Someone compared the actual circuit against the schematic and discovered the errors.
The newly revised parts marked in red, are shown to be the wrong types in the service manual. The PNP should be NPN, and NPN must be PNP. The part of the circuit with the new NPN only affects the start if the raw supply voltage is high enough (under voltage lock-out), and makes no real difference in the simulation results. The corrected PNP, on the other hand, makes the turn-off time of the driver Q10 and chopper Q9 faster, and operation more efficient. The start up drive pulses are also much cleaner. I was struggling to explain the NPN used to shut off the driver, when I looked at and simulated the circuit the first time. Using these modifications, the circuit simulated easily with the unmodified resistor values. Results show the design to have an adequate phase margin. |
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35
on: October 11, 2024, 01:15:53 13:15
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| Started by neom - Last post by LeslieT | ||
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Another one: https://www.sos.sk/pdf/SMD_Catalog.pdf
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36
on: October 11, 2024, 07:36:25 07:36
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| Started by neom - Last post by Sideshow Bob | ||
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Hi, I case you did not know it. You also have the turuta-smd-2023 book. Can be found here http://www.sonsivri.to/forum/index.php?topic=70894.0I have two SMD SOT23-3 marked as 316N and 126N. Can anyone help me identify these components? Thank you very much. |
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37
on: October 11, 2024, 06:50:40 06:50
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| Started by HealthKep - Last post by HealthKep | ||
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Spam is not needed
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38
on: October 10, 2024, 12:26:32 12:26
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| Started by neom - Last post by Wilksey | ||
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Try this: https://smd.yooneed.one/
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39
on: October 10, 2024, 12:23:31 12:23
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| Started by neom - Last post by neom | ||
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Hi,
I have two SMD SOT23-3 marked as 316N and 126N. Can anyone help me identify these components? Thank you very much. |
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40
on: October 10, 2024, 08:29:27 08:29
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| Started by metal - Last post by patchjack | ||
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Finally v4.45 Released ... XC32 complier error.I mention also the presence of the Functional Safety v4.39 with related src too. Xo! https://forum.microchip.com/s/topic/a5CV40000001tldMAA/t397607 |
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