Design ideas

• ADC controls multiple stepper motors - design idea to use ADC in stepper motor controlling     
• Circuit controls isolated 12V stepper motor - allows full direction and step control of a 12V, four-phase stepper motor from a 5V, TTL/CMOS-compatible logic controller     
• Circuit controls slew for stepper drive - slewing control for stepper motors that you use in sophisticated applications, such as monochromator movements in optical experiments     
• Compucut - stepper motor driver with enhanced software for controlling real machines making real jobs, suitable for pcb production etc.     
   

Tachmoter related technologies

• Tacho generator feedback information - This document has general information on tachno feedback and other motor speed controlling methods.     
• Tacho generator motor speed feedback - This page is a bit different from most in that it covers the use of tacho generators as feedback elements in motor control systems. This page covers tacho generator rectifier circuit for 4QD Pro-120 electric motor controllers.   

Other motor control related circuits

• Circuit forms industrial-grade digital potentiometer - This solid-state potentiometer similates a mechanical potentiometer and fits in the same space.     
• DIY Wavemaker - controls two electric water pumps     
• Driving a N channel FET from TTL - Meant as a quick n easy example of how to switch high current 12V dc from TTL.     
• High-side driver feeds IGBTs and MOSFETs     
• Pulse Width Modulators - generating PWM waveform is extremely simple with the circuits shown in this page     
• RC switch - converts RC motor control signal to switch output     
• RS-232C line-driver IC drives power MOSFETs - easy to effect an interface between power MOSFETs and TTL circuits     
• Joystick Interfaces - analogue interfaces for joysticks for motor controllers     
• Logic offers complementary-switch control - This complementary-switch controller uses a few inverter gates to provide drive signals for the complementary switches. Complementary-switch configurations find widespread use in synchronous-rectification circuits, charge pumps, full-bridge control circuits, and other circuits. This circuit has deadtime delay on both rising and falling edges.     
• MOSFET current sensing - method of 'mirror' current sensing a MOSFET     
• Oikosulkumoottori generaattorina - This article describes how a normal three phase motor can be used as an AC generator. This text is in Finnish.     
• Precharged capacitor ensures high-side start-up - when you use a high-voltage bridge driver, such as the IR2110 or the newer IR2155, a complete driver circuit can exhibit erratic behavior when you apply power if it is designed exactly right     
• Programmable Clock Oscillator - voltage controller oscillator that was designed as a wide range oscillator to generate clock pulses for a stepper motor drive system, frequency could be varied over 1,000,000:1     
• Pulse width to voltage converter     
• Tacho generator motor speed feedback     
• Two buttons provide safe start - safety interlock that checks the actuation of two pushbuttons before enabling a relay     

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