Fan system and fan driving method
AssigneeSentelic Corporation
InventorsWen-Ting Lee, Yu-Chung Tsao
Life of this patent
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Abstract
The present disclosure relates to a fan system and a fan driving method. The fan driving method includes the following steps: transmitting a first control signal to a first fan and a second fan by a processor; determining whether a first control frequency of the first control signal is within a first frequency band and a second frequency band, wherein the first frequency band and the second frequency band are different; when the first control frequency is within the first frequency band, adjusting a first rotation speed of the first fan according to the first control signal; and when the first control frequency is within the second frequency band, adjusting a second rotation speed of the second fan according to the first control signal.
Claims14
A fan driving method, comprising:
- transmitting, by a processor, a first control signal to a first fan and a second fan, wherein the first control signal has a first frequency;
- determining whether the first frequency is within a first frequency band or a second frequency band, wherein the first frequency band is different from the second frequency band;
- when the first frequency is within the first frequency band, adjusting a first rotating speed of the first fan according to the first control signal;
- and
- when the first frequency is within the second frequency band, adjusting a second rotating speed of the second fan according to the first control signal;
- wherein the fan driving method further comprises:
- determining whether the first frequency is within a common frequency band, wherein the common frequency band is different from the first frequency band and the second frequency band;
- and
- when the first frequency is within the common frequency band, adjusting the first rotating speed of the first fan and the second rotating speed of the second fan according to the first control signal.
A fan system, comprising:
- a first fan electrically coupled to a power supply, and driven by a driving power, wherein the first fan stores a first frequency band and a common frequency band;
- a second fan electrically coupled to the power supply, and driven by the driving power, wherein the second fan stores a second frequency band and the common frequency band, and the common frequency band is different from the first frequency band and the second frequency band;
- and
- a processor electrically coupled to the first fan and the second fan, and configured to transmit a first control signal to the first fan and the second fan;
- wherein the first fan and the second fan are configured to determine whether a first frequency of the first control signal is within the first frequency band;
- when the first frequency is within the first frequency band, the first fan adjusts a first rotating speed of the first fan according to the first control signal;
- when the first frequency is within the second frequency band, the second fan adjusts a second rotating speed of the second fan according to the first control signal;
- and
- when the first frequency is within the common frequency band, the first fan adjusts the first rotating speed of the first fan according to the first control signal, and the second fan adjusts the second rotating speed of the second fan according to the first control signal.
A fan driving method, comprising:
- transmitting, by a processor, a start control signal to a plurality of fans, wherein the plurality of fans operates according to the start control signal, the start control signal has a start control frequency, the plurality of fans store a plurality of frequency bands, and the frequency bands are different from each other;
- transmitting a first control signal to the plurality of fans, wherein the first control signal has a first frequency different from the start control frequency;
- when the first frequency is within one of the plurality of frequency bands, adjusting a rotating speed of one of the plurality of fans according to the first control signal;
- and
- maintaining rotating speeds of other of the plurality of fans according to the start control signal.
Dependencies are inferred from the claim text.