The "NEW Rev 0" Mini Spot Welder review
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2 سال پیش
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I finally managed to review the "new Rev 0" Mini Spot Welder. I have done my best to explain in detail what the issues are and how to correct them, hopefully improving the life and performance of this version. I cannot guarantee that these mods will give you a perfect and flawless product so please apply them at your own risk.
Index
00:00 - Intro
03:20 - Brief description on differences
05:04 - Unit description
06:28 - Driver circuit Comparison: Old Rev 0 Vs. New Rev 0
09:08 - Driver circuit in New Rev 0
12:41 - Driver Schematics and Mods explanation
15:44 - Trigger scope shots
22:51 - Resistor mods on schematics and MCU PCB
31:08 - Circuit differences
32:15 - The driver circuit problem
33:08 - Weld pics
34:20 - Live Weld example
35:58 - Booster circuit Regulation Ripple
37:47 - MOSFET turn on phases
45:55 - Product considerations
47:40 - Anti Spark connector
49:59 - Gate turn-off scope shot
51:09 - Final considerations
Schematic of the New Rev 0:
drive.google.com/file/d/1WoP4S2nsLATvomAciGshfox_S…
All Current Mini Spot Welder versions: circuit Analysis, differences and faults
Bk11/bl18 Schematics:
drive.google.com/file/d/1JdTd9zBeO-WjV4NazYxrOzqyk…
drive.google.com/file/d/1yHxHAMzU08w1dSB8qBUGWz0NB…
BJ07 Schematics:
drive.google.com/file/d/1EM7G28I6Zkv35L-ae8JuToM6-…
drive.google.com/file/d/1LuWD--ZSOIpf0oW1TmZOXtKvC…
"New" Rev 0:
drive.google.com/file/d/1WoP4S2nsLATvomAciGshfox_S…
Links to some tech docs:
MCP1407
ww1.microchip.com/downloads/en/DeviceDoc/20002019C…
MCU Nuvoton MS51FC0AE
www.nuvoton.com/export/resource-files/PB_MS51_Seri…
LTV 357 Optocoupler
www.tme.eu/Document/e03070c3b8e8994d30b33c266eed49…
Infineon IPLU300N04S4-R8
www.infineon.com/dgdl/IPLU300N04S4-R8-Data-Sheet-1…
Miller Effect wiki:
en.wikipedia.org/wiki/Miller_effect
2 سال پیش
در تاریخ 1401/01/05 منتشر شده
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