LDM #367: Shahed-136 kamikaze drone servomotor

This video shows the teardown, the reverse engineering and the test of a servomotor used in the Iranian Shahed-136 kamikaze drone (also called Geranium-2) . 00:00 - Intro 01:46 - Teardown 02:36 - Electronic board 03:16 - Test 06:15 - Reverse-engineering - overview 06:47 - Reverse polarity protection 08:15 - Power supply 08:54 - Brushless motor power stage 10:03 - PWM input interface 10:27 - Feedback device 10:46 - Feedback output circuit active parts used: SED10070GG: N-channel MOSFET (x7) https://www.lcsc.com/datasheet/lcsc_d... SGM8591: Single-Supply, Single Rail-to-Rail I/O Precision Operational Amplifier https://www.sg-micro.com/rect/assets/... EG2134 芯片用户手册 三相独立半桥驱动芯片 https://www.lcsc.com/datasheet/lcsc_d... TLP2361 https://eu.mouser.com/datasheet/2/408... XL7005A - 0.4A 150KHz 80V Buck DC to DC Converter https://www.lcsc.com/datasheet/lcsc_d... Blog with schematic diagram in pdf: https://mwblog.fr/ldm-367-shahed-136-... Link to schematic diagram: https://mwblog.fr/wp-content/uploads/... The servo is similar to the giant scale servo from Hitec ref HS-1005SGT: https://hitecrcd.com/products/servos/...