http://users.atw.hu/balubati/blog/index.php Copyright 2026, Márton Miklós Márton Miklós hu-HU SPHPBLOG 0.5.1 http://users.atw.hu/balubati/blog/index.php?entry=entry250818-213328 after a 7 year old adventure:

The libanalyzer.so shipped in the appimage differ from what they have in their repo.

Extract the appimage with Logic-1.2.40-Linux.AppImage --appimage-extract

and link with the libanalyzer.so found in the extracted squashfs-root/usr/lib/ folder. Be careful about the case of the 'A': in the appimage it is lower case a....]]> http://users.atw.hu/balubati/blog/index.php?entry=entry250818-213328 Márton Miklós Mon, 18 Aug 2025 19:33:28 GMT http://users.atw.hu/balubati/blog/comments.php?y=25&m=08&entry=entry250818-213328 http://users.atw.hu/balubati/blog/index.php?entry=entry240912-212206

CAN looks to be operating at 40 kb/s]]> http://users.atw.hu/balubati/blog/index.php?entry=entry240912-212206 Márton Miklós Thu, 12 Sep 2024 19:22:06 GMT http://users.atw.hu/balubati/blog/comments.php?y=24&m=09&entry=entry240912-212206 http://users.atw.hu/balubati/blog/index.php?entry=entry240707-201114
Someone tried to repair it but failed.

It shown some manual soldering marks around the graetz bridges and the PFC IGBT but all looked good.

The unit had a nice looking scheme in the cover of the wiring connectors:


By looking it more closely I realized that I have not disassembled the PFC Reactor coil out from the unit. Unfortunately starting the power supplies was not possible without it.

Shorting the reactor coil would likely kill the PFC IGBT, however I have not too much mood to climb up and disassemble the coil.

So I started to look after some old PC power supplies for a salvagable PFC coil, but I failed to find one even by looking around at several friends with similar interests. I have had salvaged a PFC coil 15-20 years ago, but at some point discarded it.

Anyway one of my friends recommended that I could simply block the gate of the PFC IGBT from being driven and the power rails should came up.

I did exactly this, and the DC link nicely went up. However no voltages were present on the low voltage side.
The low voltage rails were powered by this module:


The board is very nicely equipped with silkscreen: we know that the low voltage rails is 15V. I looked around for schematics of the board, however it does not seems to be exists in the wild.

I started to look for the 1515752 power module ID and in many places it was sold with URM1515-2B RM1515-2B PM1512-C2 UPM1512-C2.

By looking up these partnumbers I managed to find an LG service manual which contained this schematic:


Aha, this is not a transformer but a complete SPMS potted into a transformer shape.

The schematic power part very closely matches what I have.

I could not resist to take apart the module. With some hot air gun I managed to dig out the PCB.
Unfortunately the some coil windings got damaged, so reparing it is out of question.
The module uses a different SPMS IC: TNY266 which is a lower power rated than the TNY268 which is in the uRM1515-2B.





The board/module has markings Tamura 4P-P1-10465C

After looking about the Tamura corporation they website has a very similarly looking module called EPM:
https://www.tamuracorp.com/electronics/en/powermodule/

]]> http://users.atw.hu/balubati/blog/index.php?entry=entry240707-201114 Márton Miklós Sun, 07 Jul 2024 18:11:14 GMT http://users.atw.hu/balubati/blog/comments.php?y=24&m=07&entry=entry240707-201114 http://users.atw.hu/balubati/blog/index.php?entry=entry240502-120716 Marking (12C1) confirms it, pinout matches.



]]> http://users.atw.hu/balubati/blog/index.php?entry=entry240502-120716 Márton Miklós Thu, 02 May 2024 10:07:16 GMT http://users.atw.hu/balubati/blog/comments.php?y=24&m=05&entry=entry240502-120716 http://users.atw.hu/balubati/blog/index.php?entry=entry240325-091926


]]> http://users.atw.hu/balubati/blog/index.php?entry=entry240325-091926 Márton Miklós Mon, 25 Mar 2024 08:19:26 GMT http://users.atw.hu/balubati/blog/comments.php?y=24&m=03&entry=entry240325-091926 http://users.atw.hu/balubati/blog/index.php?entry=entry231103-221401
No load current consumption at 12V: 15 mA
No load current consumption installed into the greased gearbox 12V: 25 mA
Stall current: 190 mA @ 12V

Outer diameter: 32 mm
Shell length: 18 mm
Shaft diameter: 2 mm
Shaft length: 9,5 mm

If you need one in Hungary drop me a message I have some for sale.
]]> http://users.atw.hu/balubati/blog/index.php?entry=entry231103-221401 Márton Miklós Fri, 03 Nov 2023 21:14:01 GMT http://users.atw.hu/balubati/blog/comments.php?y=23&m=11&entry=entry231103-221401 http://users.atw.hu/balubati/blog/index.php?entry=entry230818-150130
tldr: no H bridge, no frequency modulation, just the oldschool phase dimming circuit with a Triac.





]]> http://users.atw.hu/balubati/blog/index.php?entry=entry230818-150130 Márton Miklós Fri, 18 Aug 2023 13:01:30 GMT http://users.atw.hu/balubati/blog/comments.php?y=23&m=08&entry=entry230818-150130 http://users.atw.hu/balubati/blog/index.php?entry=entry230221-203655 QTableView::scrolltoBottom from slots connected to the model's rowsInserted signal because as the rows added they will start to appear partially:



Connect your slots to the QTableView::verticalScrollBar's rangeChanged signal

]]> Napi Qt Okosság, English http://users.atw.hu/balubati/blog/index.php?entry=entry230221-203655 Márton Miklós Tue, 21 Feb 2023 19:36:55 GMT http://users.atw.hu/balubati/blog/comments.php?y=23&m=02&entry=entry230221-203655 http://users.atw.hu/balubati/blog/index.php?entry=entry220113-105443
It has a 54V BLDC motor with builtin ESC mfr P/N: N599252.
The only option is to buy the ESC with the motor and the trigger circuit for ~180 GBP...

I removed the ESC from the motor. The ESC is potted with some PUR resin, so I started to carefully remove it.

It turned out that the low side MOSFETs were blown.



]]> http://users.atw.hu/balubati/blog/index.php?entry=entry220113-105443 Márton Miklós Thu, 13 Jan 2022 09:54:43 GMT http://users.atw.hu/balubati/blog/comments.php?y=22&m=01&entry=entry220113-105443 http://users.atw.hu/balubati/blog/index.php?entry=entry211213-230808
I have a Nissan Formula-e car (made by Brandbase) from the previous campaign, and I was curious to see the differences.

Fortunately my colleague SJ already scored one and allowed me to take it apart.

The construction is a bit different: the battery/electronics unit is built-in unlike the Brandbase one:


The steering is similar (dc motor without end limits):


Main PCB marking: KCE210119


Smart, module based design.
BLE MCU marked with YC1063 UG6860. Possibly YiChip YC1063 Many thanks to David for the tip!
Two (supposedly H bridge) SOT-23-2 marked with SA1016 (U2 and U6).
Lipo charger marked with B137 70pJ.


Battery has 100 mAh printed on it and it is supposed to be a Huahui HFC1025 LiFePo4? single cell.
]]> RC cars http://users.atw.hu/balubati/blog/index.php?entry=entry211213-230808 Márton Miklós Mon, 13 Dec 2021 22:08:08 GMT http://users.atw.hu/balubati/blog/comments.php?y=21&m=12&entry=entry211213-230808