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  2. Computer fan control - Wikipedia

    en.wikipedia.org/wiki/Computer_fan_control

    The sense pin is used to relay the rotation speed of the fan and the control pin is an open-drain or open-collector output, which requires a pull-up to 5 V or 3.3 V in the fan. Unlike linear voltage regulation, where the fan voltage is proportional to the speed, the fan is driven with a constant supply voltage; the speed control is performed by ...

  3. Computer fan - Wikipedia

    en.wikipedia.org/wiki/Computer_fan

    This is a special variant of the Molex KK connector with four pins but with the locking/polarisation features of a three-pin connector. The additional pin is used for a pulse-width modulation (PWM) signal to provide variable speed control. [26] These can be plugged into 3-pin headers, but will lose their fan speed control.

  4. SpeedFan - Wikipedia

    en.wikipedia.org/wiki/SpeedFan

    SpeedFan is a system monitor for Microsoft Windows that can read temperatures, voltages and fan speeds of computer components. [3] It can change computer fan speeds depending on the temperature of various components. [1] [4] The program can display system variables as charts and as an indicator in the system tray.

  5. Temperature control - Wikipedia

    en.wikipedia.org/wiki/Temperature_control

    Temperature measuring and controlling module for microcontroller experiment. Temperature control is a process in which change of temperature of a space (and objects collectively there within), or of a substance, is measured or otherwise detected, and the passage of heat energy into or out of the space or substance is adjusted to achieve a desired temperature.

  6. Bang–bang control - Wikipedia

    en.wikipedia.org/wiki/Bang–bang_control

    A water heater that maintains desired temperature by turning the applied power on and off (as opposed to continuously varying electrical voltage or current) based on temperature feedback is an example application of bang–bang control. Although the applied power switches from one discrete state to another, the water temperature will remain ...

  7. Standard Parasitic Exchange Format - Wikipedia

    en.wikipedia.org/wiki/Standard_Parasitic...

    The pin name is the name of the pin. The direction will be I, O, or B, corresponding to input, output, or bidirectional signals, respectively. The xy coordinate will be the location of the pin in the layout. For an input, the loading information will be *L and the pin's capacitance.

  8. Commodore 64 peripherals - Wikipedia

    en.wikipedia.org/wiki/Commodore_64_peripherals

    The monitor page 1 displays battery voltage, water temperature, engine oil pressure, fuel level, vehicle speed, engine rotation speed, lock/no-lock condition of the automatic transmission torque converter, and on/off condition of the air conditioning clutch. All except the last two were incorporated with a "buzzer" alarm system that indicates ...

  9. Motor controller - Wikipedia

    en.wikipedia.org/wiki/Motor_controller

    A motor controller is a device or group of devices that can coordinate in a predetermined manner the performance of an electric motor. [1] A motor controller might include a manual or automatic means for starting and stopping the motor, selecting forward or reverse rotation, selecting and regulating the speed, regulating or limiting the torque, and protecting against overloads and electrical ...

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