Driving device and driving-program updating method for fan
AssigneeMidastek Microelectronics Inc.
InventorChung-Ping Tan
Life of this patent
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Abstract
A driving device and a driving-program updating method are provided. The driving device includes a signal converter, a storage circuit, a controller, a driver, and a detection circuit. The signal converter receives a first signal and converts the first signal into a second signal. The storage circuit stores a driving program. The controller provides a control signal in response to the second signal and the driving program. The driver drives a fan unit in response to the control signal. The detection circuit detects whether the first signal includes a program update command. When the first signal includes the program update command, the detection circuit updates the driving program stored in the storage circuit based on the program update command.
Claims10
A driving device for a fan unit, the driving device comprising:
- a signal converter, configured to receive a first signal and convert the first signal into a second signal;
- a storage circuit, configured to store a driving program;
- a controller, coupled to the signal converter and the storage circuit, and configured to provide a control signal in response to the second signal and the driving program;
- a driver, coupled to the controller, configured to drive the fan unit in response to the control signal;
- and
- a detection circuit, coupled to the storage circuit, configured to detect whether the first signal comprises a program update command, wherein:
- when the first signal comprises the program update command, the driving program stored in the storage circuit is updated based on the program update command,
- wherein the first signal is a pulse-width modulation signal with a frequency range,
- wherein the second signal is a voltage signal, and
- wherein a voltage value of the second signal is related to a first frequency of the frequency range.
A driving-program updating method for a fan unit, the driving-program updating method comprising:
- receiving a first signal, and converting the first signal into a second signal;
- providing a control signal in response to the second signal and a driving program to drive the fan unit;
- detecting whether the first signal comprises a program update command;
- and
- when the first signal comprises the program update command, updating the driving program based on the program update command,
- wherein the first signal is a pulse-width modulation signal with a frequency range,
- wherein the second signal is a voltage signal, and
- wherein a voltage value of the second signal is related to a first frequency of the frequency range.
Dependencies are inferred from the claim text.