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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) |
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AN771: Suppressing Acoustic Noise in PWM Fan Speed Control Systems - Microchip
Application Note Published 27-Jul-04 (app note added 2/06) |
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AN-772: A Design & Manufacturing Guide for the Lead Frame Chip Scale Package -
AN-772 Analog Devices Application Note (app note added 2/06) |
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AN772: Speed Error in PWM Fan Control Systems TC646, TC647, TC649 - Microchip
Application Note Published 27-Jul-04 (app note added 2/06) |
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Autonomous Fan Control for Processor Systems using the LM85 - National
Semiconductor Application Note (app note added 2/06) |
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Avoiding Passive-Component Pitfalls - AN-348 Analog Devices Application Note
(app note added 2/06) |
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Boost Converter Controls 12 Volt Fan from 5 Volt Supply - 12/12/97 EDN-Design
Ideas: --Temperature-controlled PWM boost converter allows operation
of a12V brushless dc fan from a5V supply.....(design idea added 6/06) |
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Ceiling Fanspeed Control - (electronic schematic / circuit added 2/05) |
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Circuit Generates Analog Fan Speed Control - Maxim-IC Appnote #1125 / (app
note added 5/08) -This circuit delivers a continuous and linear fan-control
voltage that is proportional to temperature. |
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Circuit Protects System from Overheating - 11/08/01 EDN-Design Ideas: 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.....(design idea added 1/05) |
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Circuit Provides Efficient Fan Speed Control - 03/04/04 EDN-Design Ideas: 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.....(design idea added 1/05) |
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) |
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Fan timer based on Motorola 68HC908QT2 - (electronic circuit added 6/07) |
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Four-Speed Fan Control using Simple Remote Diode Temperature Sensor - National
Semiconductor Application Note (app note added 2/06) |
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Implementing Temperature-Based Variable Fan Speed Control in Nlx Power Supplies
- Microchip Application Note Published 4-Feb-03 (app note added 2/06) |
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Intelligent Thermal Management using Brushless DC Fans - Microchip Application
Note Published 24-Feb-03 (app note added 6/06) |
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Interfacing Microchip’s Fan Speed Controllers to a SPI? - Microchip
Application Note Published 12-Nov-02 (app note added 2/06) |
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IR Digital Thermostat for FAN - This circuit measures temperature in Celsius
scale and displays it on an alphanumeric LCD screen When temperature rise to 40 C
an alarm is activated and at the same time a relay is also activated which drives
a fan to keep the temperature at a level.....(design idea circuit added 09/08) |
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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) |
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LTC1840: I2c Fan Control Ensures Continuous System Cooling - DN270
Design Notes (Linear Technology) (app note added 1/06) |
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MOSFET Switch Provides Efficient AC/DC Conversion - 02/17/00 EDN-Design Ideas:
/ (schematic / circuit added 11/03) |
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Noise Filtering & the ADT7461 - AN-699 Analog Devices Application Note
(app note added 2/06) |
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Programming the Automatic Fan Speed Control Loop - AN-613 Analog Devices
Application Note (app note added 6/06) |
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Redundant Fan Systems using the TC647 Fan Manager - Microchip Application Note
Published 4-Feb-02 (app note added 2/06) |
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Simple temperature regulated FAN speed Controller - This regulator uses a P-FET
to change the positive supply voltage to a FAN an NTC resistor mounted on the
device that needs cooling will change the fan speed, the temperature on the heat
sink will therefore be constant, while the FAN speed will change, depending on
power disipated The RPM output signal from most FAN types will continue to
function,....(schematic added 05/08) |
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SOT-23 Smbus Fan Speed Controller Extends Battery Life & Reduces Noise - DN238
Design Notes (Linear Technology) (app note added 1/06) |
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Speed Error in PWM Fan Control Systems TC646, TC647, TC649 - Microchip
Application Note Published 27-Jul-04 (app note added 2/06) |
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Suppressing Acoustic Noise in PWM Fan Speed Control Systems - Microchip
Application Note Published 27-Jul-04 (app note added 2/06) |
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System monitors multiple temperatures Controls Fan speed - 10/12/00 EDN-Design
Ideas:.....(design idea added 7/03) |
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TB063: An Integrated Fan Speed Control Solution can Lower System Costs, Reduce
Acoustic Noise, Power Consumption & Enhance System Reliability - Microchip
Application Note Published 24-Feb-03 (app note added 6/06) |
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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) |
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Temperature monitor & fan Controller reduce fan noise - 05/10/01 EDN-Design
Ideas: (design idea added 6/06) |
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Temperature-controlled 12V dc Fan - Suitable for computer cooling fans.
LED motor speed indicator. (electronic design added 6/07) |
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Thermo Cooling Fan - Use a 12V computer fan to cool your amp. Uses diode
temperature sensor f (added 7/03) |
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Use a PWM fan Controller in an EMI susceptible circuit - 02/16/06 EDN-Design
Ideas: Control it with either an external negative-temperature-coefficient
thermistor or a PIC microcontroller and its SMBus serial-data bus.....(design idea
added 05/07) |
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Using the ADT7461 as a Multichannel Temperature Sensor - AN-702 Analog Devices
Application Note (app note added 2/06) |
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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) |
