Servos - working principle and homemade types

Table Of Content: 00:00 Introduction 01:19 Torque and servo speed 02:25 Sensor (potentiometer) 02:56 Driving a servo by PWM 04:15 Hard stops 04:48 Servo driver circuit 06:17 Self made servo board 06:39 PWM signal to DC voltage (low-pass) 09:02 2. order low-pass 10:18 Amplifying the DC voltage 10:59 Controlling the H bridge 11:38 Comparator 12:50 Window comparator 15:04 Connecting and adjusting the servo board 18:30 Powering the servo motor 19:15 Ripple of the PWM signal and motor control 20:02 Homemade servos 20:24 CD tray as servo 20:59 Servo composed of a hreaded bar 21:25 Limitations 22:22 Higher transmission is better 22:57 Voltage fluctuations 23:27 Digital control 24:11 "Hacking" servos 25:21 Driving "hacked" servos 26:19 Examples of use 27:36 Power H bridge with modified servo board 28:26 Signal sequence at the electric motor 29:44 Comparators between servo board and H bridge 31:13 Using the modified servo board 33:15 Windscreen wiper motor as servo 34:32 Digital control of servos The project page about servos with circuit layouts: http://www.homofaciens.de/technics-ba...