0 to 10 Volt Control for RC Servos:  (electronic (schematic / circuit added 4/02)

A Guide to Using Apex Brushless DC Servo Amplifiers - App Note 42:  Apex Microtechnology Corp App Note (added 6/06)

AN696: PIC18cxxx/PIC16cxxx DC Servomotor:  Microchip Application Note Published 25-Jul-00   (app note added 6/06)

Circuit measures Currents in dc Servo motor:  12/06/01 EDN Design Ideas  /  (added 1/05)  The simple circuit design in Figure 1 lets you measure all components of a current flowing in a dc servo motor. The rectified output of the circuit uses ground as a reference, so you can measure the output by using a single-ended A/D converter. The current-sense resistor, R1, has a value of 0. ...

Circuit Measures Small Current in DC Servo Motor:  12/07/01 EDN-Design Ideas  / (circuit design added 11/06) The simple circuit design in Figure 1 lets you measure all components of a current flowing in a dc servo motor. The rectified output of the circuit uses ground as a reference, so you can measure the output by using a single-ended A/D converter. The current-sense resistor, R1, has a value of 0.1Ω. The Zetex (www.zetex.com) ZXCT1010 IC converts the differential signal across R1 to a single-ended signal. Two of these ICs form a signal rectifier.....

DC servomotor controller:  An experiment on the DC servomotor control system. It is controlled with only an AVR.  (added 6/06)

IC MIC Preamp uses Jensen Twin Servo Topology:  (circuit / schematic design added 6/06)

JT-11 BM High Level Differential IC Output Stage with DC Servo:  (circuit / schematic design added 6/06)

Modifying a Servo:  I was in need to modify four expensive JR-DS8231 Ultra Digital servos to rotate 360° instead of the standard 130° or something.  The mods were required so they could be used with a tethered blimp.  The infra-red and night vision camera equipment is mounted underneath the blimp on a special frabicated aluminum cage and is radio controlled (R/C).  I choose a digital 10-channel radio transmitter merely... (added 2/06)

Parallel port Servo Controller:  (electronic circuit added 4/05)

PIC Micro Multiple Servo Motor Interface:  (circuit / schematic design added 6/06)

PIC MicroController Servo Motor Interface:  (circuit / schematic design added 6/06)

PIC18cxxx/PIC16cxxx DC Servomotor:  Microchip Application Note Published 25-Jul-00   (app note added 6/06)

Pulse Width Adjuster Reverses Servo Motor:  03/17/94 EDN-Design Ideas / (added 6/06) Typical remote-control systems and robotics applications use standard R/C servos, which often require a reversal of the direction of rotation. Since varying the input signal's pulse width between 1 and 2 msec controls the servo's output position, a circuit that adjusts the pulse width to cause direction reversal can often come in handy. Many such circuits exist that use relatively sophisticated servo-control ICs, but the implementation in Fig 1 uses a standard CMOS IC to produce a reliable design at low cost. Q1 functions as an input buffer, which allows correct control even....

Serial Servo Controller:  (electronic circuit added 4/05)

Serial Servo Motor Controller:  (electronic (schematic / circuit added 4/02)

Servo loop improves linear regulator efficiency:  07/08/04 EDN Design Ideas  /  (added 1/05)  Linear regulators are easy to implement and have better noise and drift characteristics than switching approaches. Their largest disadvantage is inefficiency: excess energy dissipated as heat. 

Servo Pulse to Dual H-Bridge:  interface performs vital control functions needed for propulsion and steering of a “fighting robot”. (added 1/05)

Servo Pulse to PWM:  converter connects an H-Bridge to radio control receivers or robotic circuits. (added 1/05)

Servo Slew Rate Control:  A circuit that limits the rate of change of a signal; a feature of this design is that the positive and negative rates can be different. (added 5/02)

Servo Wiring Chart:  After 1991 or so (I can't remember), most of the major brands of servos became compatible with each other. You can use any of these brands of servos with any brand of receiver. Some brands of servos are really great for a particular use in a particular plane, and there are other companies that sell their servos with each different manufacturer's connector installed (you just have to ask for what you want).... (added 2/06)