AN770: Linear Voltage Fan Speed Control using Microchip's TC64x Family (TC642, TC646, TC648):  Microchip Application Note Published 27-Jul-04   (app note added 2/06)

AN771: Suppressing Acoustic Noise in PWM Fan Speed Control Systems:  Microchip Application Note Published 27-Jul-04   (app note added 2/06)

AN-772: A Design and Manufacturing Guide for the Lead Frame Chip Scale Package:  AN-772 Analog Devices Application Note   (app note added 2/06)

AN772: Speed Error in PWM Fan Control Systems (TC646, TC647, TC649):  Microchip Application Note Published 27-Jul-04   (app note added 2/06)

Autonomous Fan Control for Processor Systems using the LM85:  National Semiconductor Application Note   (app note added 2/06)

Avoiding Passive-Component Pitfalls:  AN-348 Analog Devices Application Note   (app note added 2/06)

Boost Converter Controls 12 Volt Fan from 5 Volt Supply:  12/12/97 EDN-Design Ideas / (added 6/06)   --Temperature-controlled PWM boost converter allows operation of a12V brushless dc fan from a5V supply

Ceiling Fanspeed Control :  (electronic schematic / circuit added 2/05)

Circuit Converts PWM Fan Drive to Linear and Reduces Acoustic Noise:  App Note 3530: Maxim IC  (application note added6/06)

Circuit Generates Analog Fan Speed Control:  Maxim-IC Appnote #1125 / (app note added 6/06) -This circuit delivers a continuous and linear fan-control voltage that is proportional to temperature.

Circuit Generates Analog FAN-Speed Control:  App Note 1125: Maxim IC  (application note added6/06)

Circuit Protects System from Overheating:  11/08/01 EDN Design Ideas  /  (added 1/05)  The two-chip circuit in Figure 1 provides fan control and overtemperature warning and shutdown signals to protect systems from excessive heat. The circuit monitors the temperature of the pc board and the die temperature of a CPU, an FPGA, or another IC with an on-chip temperature-sensing transistor. ...

Circuit Provides Efficient Fan Speed Control:  03/04/04 EDN Design Ideas  /  (added 1/05)  As Moore's Law plunges us into the realm of multigigahertz processors and PCs with gigabytes of RAM, engineers face the task of removing the heat that these state-of-the-art components produce. Cooling such systems poses a dilemma. If you optimize the fan size and speed for nominal operating conditions, the system is susceptible to failure when conditions deteriorate....

Computer Fan Speed Tacho Out Circuit: Add a Fan Speed Monitor Lead to Any 12V Two Wire Fan:  You will find this identical circuit inside most 3 wire computer fans with speed monitoring output to the motherboard.
Peel off the sticker from the fan hub in order to access a motor winding pin for connecting up the tacho circuit. (added 2/05)

Fan Control Advances: Consider Fan Regulation:  App Note 896: Maxim IC  (application note added6/06)

Fan Speed Control is Cool!:  App Note 1784: Maxim IC  (application note added6/06)

Fan timer Based on Motorola 68HC908QT2:  (circuit / schematic design added 6/06)

Four-Speed Fan Control using Simple Remote Diode Temperature Sensor:  National Semiconductor Application Note   (app note added 2/06)

Grounding for Low-and-High-Frequency Circuits:  AN-345 Analog Devices Application Note   (app note added 2/06)

Implementing Temperature-Based Variable Fan Speed Control in Nlx Power Supplies:  Microchip Application Note Published 4-Feb-03   (app note added 2/06)

Intelligent Thermal Management using Brushless DC Fans:  Microchip Application Note Published 24-Feb-03   (app note added 6/06)

Interfacing Microchip’s Fan Speed Controllers to a SPI?:  Microchip Application Note Published 12-Nov-02   (app note added 2/06)

Keys to Longer Life for CMOS:  AN-349 Analog Devices Application Note   (app note added 2/06)

Linear Voltage Fan Speed Control using Microchip's TC64x Family (TC642, TC646, TC648):  Microchip Application Note Published 27-Jul-04   (app note added 2/06)

LTC1840: I2c Fan Control Ensures Continuous System Cooling:  DN270  Design Notes (Linear Technology) (app note added 1/06)

MOSFET  Switch Provides Efficient AC/DC Conversion:  02/17/00 EDN-Design Ideas / (schematic / circuit added 11/03)

Noise Filtering and the ADT7461:  AN-699 Analog Devices Application Note   (app note added 2/06)

Programming the Automatic Fan Speed Control Loop:  AN-613 Analog Devices Application Note   (app note added 6/06)

Redundant Fan Systems using the TC647 Fan Manager:  Microchip Application Note Published 4-Feb-02   (app note added 2/06)

Rev Up Your Fan Speed Control Designs:  App Note 809: Maxim IC  (application note added6/06)

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

Speed Control for Isolated-48V Fans:  App Note 1814: Maxim IC  (application note added6/06)

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

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

System Monitors Multiple Temperatures Controls Fan Speed:  10/12/00 EDN-Design Ideas / (added 7/03)

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)

TB064: Intelligent Thermal Management using Brushless DC Fans:  Microchip Application Note Published 24-Feb-03   (app note added 6/06)

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 6/06)

Temperature monitor and fan controller reduce fan noise:  05/10/01 EDN-Design Ideas  / (added 6/06)

Temperature-Based Fan Control using the MAXQ2000 Microcontroller:  App Note 3620: Maxim IC  (application note added6/06)

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

Thermofan to Keep Your Amp Cool:  (circuit / schematic design added 6/06)

Use a PWM fan controller in an EMI-susceptible circuit:  2/16/2006    EDN Design Ideas  / (added 02/07)    Control it with either an external negative-temperature-coefficient thermistor or a PIC microcontroller and its SMBus serial-data bus.

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