Sensorless BLDC Motor Control using DSPic30f2010 (Chinese):  Microchip Application Note Published 27-Jul-05   (app note added 6/06)

Sensorless BLDC Motor Control using DSPic30f2010:  Microchip Application Note Published 26-Jul-05   (app note added 6/06)

Sensorless brushless motor control:  Brushless Direct Current (BLDC) motors are increasing in popularity in consumer and industrial electronics because of their compact size, controllability, and high efficiency. For instance, this type of motor can eliminate automotive belts and hydraulic systems for improved functionality and fuel economy. Their compact size is a result of continued improvements in magnets, rendering improvements in efficiency. Additionally, BLDC motor systems are experiencing a reduction in magnetic and electronic costs..... (electronic design added 11/06)

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

Servo Circuit:  (Circuit added 11/06)

Servo Control of a DC Brush Motor:  Microchip Application Note Published 26-Aug-97   (app note added 2/06)

Several stepper motor Control circuits:  (electronic circuit added 4/05)

Simple µC acts as dedicated motor control :  09/11/98 EDN-Design Ideas  / (added 2/06)

Simple circuit Controls stepper motors:  01/08/04 EDN Design Ideas  /  (added 1/05)  Stepper motors are useful in many consumer, industrial, and military applications. Some, such as personal-transportation systems, require precise speed control. Stepper-motor controllers can be simple (Figure 1), but they require a variable-frequency square wave for the clock input. The AD9833 low-power DDS (direct-digital-synthesis) IC with an on-chip, 10-bit DAC is ideal for this task, becaus......

Simple ESC:  with optoisolated input (schematic added 11/06)

Simple servo controller:  This cicuit allows you to test a servo. The angle of the servo can be set by means of the 10k potmeter. Perhaps you will not be able to reach all positions with this circuit. Playing with other...

Simple Two Speed Contactor DC Motor Controller:  The simplest of all motor controllers (besides a straight on/off switch) is the contactor controller. Aaron designed this contactor controller for use in his...

Single Phase Electronic Starter:  Circuit / schematic (added 02/05)

Sinusoidal Control of PMSM Motors with DSPIC30F DSC:  Microchip Application Note Published 21-Dec-05   (app note added 2/06)

Six-transistor H-bridge:  This is the six transistor "Tilden style" H-bridge; while not as old as the original "basic H-bridge," this goes "way back," and is the basis for many BEAM driver circuits (added 11/05)

Small Motor Speed Regulator :  Reverse engineered circuit diagram of a motor speed regulator out of a portable tape recorder containing a single motor for all functions. This circuit works amazingly well, keeping the motor speed constant regardless of shaft load and battery voltage. (added 2/05)

Solar Powered motor runs on 10 nA:  03/18/04 EDN Design Ideas  /  (added 2/06)  Designs for solar-powered applications with low-duty-cycle requirements can often rely on capacitors for energy storage in place of less reliable batteries. Typical applications include solar positioning, telemetry transmitters, chemical pumps, data loggers, and solar-powered toys. The circuit in Figure 1 can run a small pager motor from the output of a small calculator-type solar cell in near......

Solarbotics NV-Based Circuit:  uses a single IC (and it's a common one, too -the 74AC240) to give you motor drive in a single direction
   (added 11/05)

SOT-23 SMBus Fan Speed Controller Extends Battery Life and Reduces Noise:  DN238  Design Notes (Linear Technology) (app note added 1/06)

Speed Control of 3-Phase Induction Motor using PIC18 Microcontrollers:  Microchip Application Note Published 2-Jul-02   (app note added 2/06)

Speed Controller for Robot:  The purpose of a motor speed controller is to take a signal representing the demanded speed, and to drive a motor at that speed. The controller may or may not actually measure the speed of the motor. If it does, it is called a Feedback Speed Controller or Closed Loop Speed Controller, if not it is called an Open Loop Speed Controller. Feedback speed control is better, but more complicated, and may not be required for a simple robot design.... (diagram added 11/06)

Speed Controller:  There are many ways of producing a PWM wave form, it can be done with PIC’s, 555 timers, Nand gates and schmitt triggers, but I’ve taken the easy way out by using a custom made PWM motor controller (in kit form) and modifying it (slightly). The kit in question is from Maplin part no (VF59P). Below is the schematic of what it looks like now. The frequency that it runs at has been modified from its original 5k up to 25k, at this frequency the motor can no longer be heard buzzing. To set the frequency measure.... (circuit added 11/06)

Speed Error in PWM Fan Control Systems (TC646, TC647, TC649):  Microchip Application Note Published 27-Jul-04   (app note added 2/06)

Step Motor Controller:  This Application Note describes how to implement a compact size and high-speed interrupt driven step motor controller. Step motors are typically used in applications like camera zoom/film feeder, fax machines, printers, copying machines, paper feeders/ sorters and disk drives. The high performance of the AVR controller enables the designer to implement high speed step motor applications with low computing requirements of the controller.  (app note added 3/05)

Stepper Motor Control using the PIC16F684:  Microchip Application Note Published 23-Feb-04   (app note added 2/06)

Stepper motor Controller #4:  (electronic circuit added 4/05)

Stepper Motor Controller #5:  This reference design demonstrates a high performance stepper motor system using the C8051F300 microcontroller. The reference design provides for both stand-alone demo operation and UART control. It may also be used as a platform for stepper motor code development. (app note added 3/05)

Stepper Motor Driver :  74194 Inexpensive stepper motor driver that could be used to power slow speed projects on the layout or other hobby applications (added 4/05)

Stepper Motor Driver using L298 and L297:  (electronic circuit added 4/05)

Stepper Motor Driver using TEA3718/3717:  (electronic circuit added 4/05)

Stepper Motor Experiment:  (electronic circuit added 7/03)

Stepper Motor Microstepping with PIC18C452:  Microchip Application Note Published 21-Mar-02   (app note added 2/06)

Stepper Motor Positioner:  (electronic schematic / circuit added 4/02)

Stepping motor controller:  Intelligent stepper motor controller with PIC16F84. It can be controlled with PC that conncted with RS-232C. And it can also set up acceleration value, maximum velocity and drive method.  (added 10/05)

Stepping Motor Driver:   Minimalist circuit uses one CMOS gate and is reversible :  Many floppy drives and some subminiature printers contain bipolar stepping motors that draw very little current. The first circuit will drive small 5 volt steppers directly but you can switch to a 407)0 chip and add output transistors to drive heaftier loads at higher voltages. The circuit is not particularly susceptible to motor transients and supports FULL STEPS FORWARD, FULL STEPS REVERSE, ACTIVE HOLD, and POWER OFF aka RELEASED. If the motor does not turn then swap around the leads of ONE of the two coils. To reverse the sense of the EN signal simply rework the circuit around an XNOR gate. (added 2/05)

Stepping Motors Fundamentals:  Microchip Application Note Published 23-Feb-04   (app note added 2/06)

Super simple stepper motor controller:  (electronic circuit added 10/05)

Suppressing Acoustic Noise in PWM Fan Speed Control Systems:  Microchip Application Note Published 27-Jul-04   (app note added 2/06)

Switching regulator drives robot motor:  05/13/99 EDN-Design Ideas / (added 6/06)

System monitors multiple temperatures Controls Fan speed:  10/12/00 EDN-Design Ideas / (added 7/03)

T3SE:  Charge Rate-Controlled Solar Engine:   The all-transistor T3SE works much like a conventional SE:   like the Tritium, it fires when the charging current drops below the minimum and after the circuit triggers, positive feedback is used to latch the circuit, resetting at a fixed voltage on the main cap.   (added 11/05)

TB063:   An Integrated Fan Speed Control Solution can Lower System Costs, Reduce Acoustic Noise, Power Consumption and Enhance System Reliability:  Microchip Application Note Published 24-Feb-03   (app note added 2/06)

TC64X/TC64XB Demo Board for Fan Speed Controllers:  Fan control module allows the user to quickly prototype fan control circuits based on the TC642 or TC646 PWM Fan Control IC's. Its uses though hole components for easy user assembly and evaluation.  (app note added 3/05)

The Smart Start ™ Technique for BLDC Motors / ABR-42020:  Fairchild Application Notes / (app note added 6/06)

Thermal Fan Controller:  Excellent addition to your laboratory power supply (circuit added 11/06)

Thermo Cooling Fan:  fan controller, which controls fan based on temperature (added 7/03)

Three Phase Motor Driver Prevents Stalls:  01/05/95 EDN-Design Ideas / (added 3/03)

Three-Phase Brushless Motor RPM Controller :  The TPIC43T01/02 is a monolithic motor control integrated circuit designed to provide RPM control to a 3-phase brushless dc motor. The device provides two analog sensor input ports which include a speed sensor interface and a Hall effect position interface. The speed feedback interface consists of an FG amplifier to receive an external sinusoidal signal from a variable reluctance pickup and convert it to a digital speed signal for the control circuit. When the motor speed.... (application note added 11/06)

Tritium:  Charge Rate-Controlled Solar Engine:   The Tritium circuit was the first (to my knowledge) type 3 SE. As such, it is quite experimental, and should be regarded as a prototype rather than the 'state of the art'! Nevertheless, it does function reasonably well, and in some circumstances outperforms other solar engines such as the Freds that I have lying around.   (added 11/05)

Two Components Drive Stepper Motor:  01/19/95 EDN-Design Ideas / (added 3/03)

Use a PWM fan controller in an EMI-susceptible circuit:  2/16/06  EDN Design Ideas  /  (added 11/06)  Control it with either an external negative-temperature-coefficient thermistor or a PIC microcontroller and its SMBus serial-data bus.

Use a switching-regulator controller to generate fast pulses:  4/13/06  EDN Design Ideas  /  (added 11/06)  Switching-regulator-controller ICs can deliver gate-drive pulses with rise and fall times of less than 2 nsec, making them ideal candidates for laboratory pulse-generators.

Using a Light Dimmer IC for AC Motor Speed Control:  This circuit example uses LS7231 Light Dimmer IC (added 5/02)

Using CAN Networking for Cost Effective DC Motor Control in Vehicle Body Electronics:  National Semiconductor Application Note   (app note added 2/06)

Using COP800 Devices to Control DC Stepper Motors:  National Semiconductor Application Note   (app note added 2/06)

Using the ADT7461 as a Multichannel Temperature Sensor:  AN-702 Analog Devices Application Note   (app note added 2/06)

Using the DSPic30f for Sensorless BLDC Control:  Microchip Application Note Published 27-Jun-05   (app note added 6/06)

Using the ML4425/ML4426 BLDC Motor Controllers / AN-42004:  Fairchild Application Notes / (app note added 6/06)

Using the PIC18F2431 for Sensorless BLDC Motor Control:  Microchip Application Note Published 7-Feb-05   (app note added 2/06)

Variable Threshold Solar Engine:  Voltage-Controlled Solar Engine:    The "Variable Threshold Solar Engine" is Wilf Rigter's 1381-based design -with a variable "trip" threshold.  (added 11/05)

Variations on the PWM DC Motor Speed Control:  (electronic schematic / circuit added 4/02)

VF Control of 3-Phase Induction Motor using Space Vector Modulation:  Microchip Application Note Published 14-Mar-05   (app note added 2/06)

VTSE:   Variable Threshold Solar Engine:  Voltage-Controlled Solar Engine:    The "Variable Threshold Solar Engine" is Wilf Rigter's 1381-based design -with a variable "trip" threshold.  (added 11/05)

VX2SE:  Voltage-Controlled Solar Engine:   This is Wilf Rigter's voltage-doubling solar engine design; very useful for loads that require higher voltage (like those "super-bright" LEDs).   (added 11/05)

Washing Machine Motor Controller:  (electronic Circuit / Schematic added 10/04)

Water Drain Pump Controller:  Homemade Water Drain Pump controller (circuit added 11/06)

Wireless RF PWM dual motor Controller:  (electronic circuit added 4/05)

Zener-based solar engine:  Voltage-Controlled Solar Engine:    This design uses a Zener diode to determine the voltage trip level. Simple variants of this design use LEDs or plain old diodes in series to accomplish the same thing.  (added 11/05)

Zoelen Bridge (Z-Bridge):  A Cheaper H-Bridge Design the Zoelen Bridge (Z-Bridge)   (added 11/05)

ZXBM200x Series of Variable Speed 2-Phase Fan Motor Controller:  Zetec Semiconductors  Applications Notes This applications document is intended to aid users in their development of the controller electronics for fan and blower motors using the ZXBM200x series of variable speed, 2-phase, DC brushless motor controllers.   (app note added 2/06)