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"active fan speed control"

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Abstract: Using the SuperI/O PC87351 PC87351 for Fan Speed Control - February 1998 National Semiconductor , 's SuperI/O family of integrated PC peripherals. It includes the Fan Speed Control (FSC) logical device , Fan Speed Control for a description of the circuit that connects the output signal to a selected fan , for Fan Speed Control Using the SuperI/O PC87351 PC87351 for Fan Speed Control Activation To activate , > Counter 0 Bits 6-0 Fan Speed Control Pre-Scale Register (FCPSR) O FANOUT 1 Fan Speed ... National Semiconductor
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10 pages,
30.83 Kb

PC87351 acpi implementers fn02 0x812 Temperature Base Fan Speed controller ACPI Implementers Guide PNP0C0B TEXT
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Abstract: System Performance l Active Fan Speed Control Allows Efficient Thermal Solution while Reducing , Thermal Management l Thermal Management with ACPI l Accurate Thermal Sensing l Fan Speed Control , Management l Thermal Management with ACPI l Accurate Thermal Sensing l Fan Speed Control ANALOG , ­ Performance : Active (_ACx) ­ Silence : Passive (_PSV) Software Fan Control comply with ACPI , Thermal Management with ACPI l Accurate Thermal Sense l Fan Speed Control ANALOG DEVICES ... Intel
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datasheet

22 pages,
460.22 Kb

intel cpu pwm ic 12V fan speed control acpi ADM1023 ADM1024 ADM1031 "active fan speed control" Intel Corporation ADM1022 Analog Devices AUTOMATIC cooling fan control fan speed control cpu fan AUTOMATIC fan control TEXT
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Abstract: Dialogue 33-1 and 334). Providing fan speed control based on the temperatures measured within the system , TDM device and control the speed of the cooling fan by adjusting the PWM duty cycle applied to it , fan-speed control loop, which could behave independently of software and run the fan at its optimum speed , , and where fan speed control will begin. Speed is momentarily set at maximum to get the fan going , the PC can decide to override the control loop at any time. further increased, the fan speed will ... Original
datasheet

5 pages,
109.8 Kb

speed control 12V FAN CONTROL BY USING THERMISTOR loop heat pipes notebook keyboard PWM fan speed control PWM 12V fan speed control AUTOMATIC fan control AUTOMATIC FAN SPEED CONTROL METHOD AUTOMATIC cooling fan control cpu fan TEXT
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Abstract: Speed Control and Alarm for DC Fans P/N FUS300-F FUS300-F SmartFan Fusion-4 is a digital fan speed control , information, individual fan status and temperature readings. The Fusion accepts speed control commands and regulates fan speed using a buck regulator control circuit. The Fusion can also be configured to control fan speed based on temperature, I2C commands (single or dual) or analog control signal (PWM, 5.0 VDC , options via I2C bus: ­ 1 to 4 fan operation ­ Control fan speed based on: ­ Temperature ­ Single or ... Control Resources
Original
datasheet

8 pages,
262.3 Kb

PCA9511 FUS300-F fan speed control using pwm 26-60-4040 temperature based fan speed control 24V FAN CONTROL BY USING THERMISTOR TEXT
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Abstract: brushless motor pre-drivers with variable speed control suitable for fan and blower motors. A full , sensor so as the ZXBM200x is in a feedback loop to control the fan speed against the temperature , Applications Note AN36 Issue 1 - JULY 2002 ZXBM200x SERIES OF VARIABLE SPEED 2-PHASE FAN MOTOR , these three building blocks will be other items such as the Speed Control stimulus circuit, e.g. a , Hall output swing. The potential divider R2 and R3 in Figure 2 is provided for this. Speed Control ... Zetex Semiconductors
Original
datasheet

14 pages,
518.38 Kb

diode zener 30c NTC 22K control dc fan circuit with 10k ntc hall sensor latching switch bipolar 48v ntc 12k NTC thermistor 5k ohm potential divider thermistor universal motor speed control potential divider NTC thermistor 12k ohm mosfet motor dc 48v motor dc fan 48v 12V FAN CONTROL BY USING THERMISTOR 4 pin 2-phase hall effect driver thermistor 10k 25c 24V FAN CONTROL BY USING THERMISTOR TEXT
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Abstract: ZXBM2004 ZXBM2004 VARIABLE SPEED 2-PHASE FAN MOTOR CONTROLLER FOR THERMISTOR CONTROL DESCRIPTION The ZXBM2004 ZXBM2004 is a 2-phase, DC brushless motor pre-driver with PWM variable speed control suitable for fan and , to the SPD pin provides control over the Fan Motor speed by varying the Pulse Width Modulated (PWM , thermistor to control a fan's speed it is possible that at low temperatures the fan might fail to start or , speed of the fan by a signal from an external source. This signal may be either a control voltage or ... Zetex Semiconductors
Original
datasheet

11 pages,
178.9 Kb

ZXBM2004Q16TC 1053A zetex 60v 50a dc motor controller circuit fan speed control in plc NTC Thermistor 2.2k QSOP16 SO14N SOIC14 ZXBM2001 ZXBM2004 ZXBM2004N14TA ZXBM2004N14TC ZXBM2004Q16TA 100K NTC THERMISTOR TEXT
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Abstract: 40kHz Duty Cycle: 0% to 100%, 8 Bits • Automatic Fan Speed Control Loops • SMBus Interface â , diode temperatures, and measure and control the fan speed so that it operates with minimal acoustic , Sensing Auto Fan Speed Controller PWM-MODE The AMC6821 AMC6821 has three fan control modes: Auto , tachometer input to measure the fan speed. OVR 3 Digital output, open-drain, active low. Goes low , pull-up resistor (2.2kΩ typical). Digital output, open-drain. PWM output to control fan speed ... Texas Instruments
Original
datasheet

56 pages,
1239.7 Kb

AMC6821 TEXT
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Abstract: , monitor remote sensor diode temperatures, and measure and control the fan speed so that it operates with minimal acoustic noise at the lowest possible speed. The AMC6821 AMC6821 has three fan control modes: Auto , · Automatic Fan Speed Control Loops · SMBus Interface · Power: 2.7V to 5.5V · Package (Green): QSOP , DESCRIPTION Digital output, open-drain. PWM output to control fan speed. Digital input. Fan tachometer input to measure the fan speed. Digital output, open-drain, active low. Goes low when temperature reaches ... Texas Instruments
Original
datasheet

56 pages,
1056.97 Kb

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Abstract: Bits · Automatic Fan Speed Control Loops · SMBus Interface · Power: 2.7V to 5.5V · Package (Green , control the fan speed so that it operates with minimal acoustic noise at the lowest possible speed , mode is an intelligent, closed-loop control that optimizes fan speed according to user-defined , 1 DESCRIPTION Digital output, open-drain. PWM output to control fan speed. TACH 2 , below this limit, and the fan stops. In the maximum fast speed calculated control mode, the fan stops ... Texas Instruments
Original
datasheet

55 pages,
1125.8 Kb

SSOP-16 6821S AMC6821 AMC6821SDBQ LT10 RT10 2N3904 TEXT
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Abstract: intelligent, closed-loop control that optimizes fan speed according to user-defined parameters. This mode , DESCRIPTION Digital output, open-drain. PWM output to control fan speed. Digital input. Fan tachometer input to measure the fan speed. Digital output, open-drain, active low. Goes low when temperature reaches , , and the fan stops. In the maximum fast speed calculated control mode, the fan stops and the system , Control The fan speed is controlled by four different modes: · software DCY control; · software RPM ... Texas Instruments
Original
datasheet

53 pages,
793.09 Kb

TEXT
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