It is supposedly an Silicon labs Si4012-C1001
Marking (12C1) confirms it, pinout matches.
![](images/IMG20240502115926.jpg)
![](images/IMG20240502115938.jpg)
![](images/SI4012.png)
Marking (12C1) confirms it, pinout matches.
![](images/IMG20240502115926.jpg)
![](images/IMG20240502115938.jpg)
![](images/SI4012.png)
It is supposedly an Silicon labs Si4012-C1001
Marking (12C1) confirms it, pinout matches. ![]() ![]() ![]() It took me a while to find a proper replacement motor (identical to the original) for a front brush of a Sencor SRV4250 hoover. Motor gearbox nr. BL500-T2
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. I bought one and opened up, to save you from doing that :D.
tldr: no H bridge, no frequency modulation, just the oldschool phase dimming circuit with a Triac. ![]() ![]() ![]() Never call 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 ![]() |