Energy-saving electronic device as well as power control system of cooling fan and control method
A cooling fan and power control technology, applied in the control/regulation system, pump control, adjustment of electrical variables, etc., can solve the problems of excessive energy dissipation and high control circuit temperature, and achieve the effect of reducing energy dissipation and temperature
Inactive Publication Date: 2013-05-15
ELITEGROUP COMPUTER SYSTEMS
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Problems solved by technology
[0004] In view of the above-mentioned problems in the prior art, the object of the present invention is to provide an energy-saving electronic device, a cooling fan power supply control system and a control method thereof, so as to solve the problem that the temperature of the control circuit may be too high and the environmental protection of excessive energy dissipation question
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[0031] Embodiments of the energy-saving electronic device, cooling fan power supply control system and control method thereof of the present invention will be described below with reference to related drawings. For ease of understanding, the same components in the following embodiments are described with the same reference numerals.
[0032] see figure 1 , which is a block diagram of the cooling fan power supply control system provided by the first embodiment of the present invention. The cooling fan power supply control system 1 can be used to provide the working voltage required by the cooling fan. In this figure, the cooling fan power control system 1 includes a voltage selection circuit 10 and a voltage conversion circuit 20 . The voltage selection circuit 10 receives a plurality of voltage signals and a control signal Vctrl, and selects one of the plurality of voltage signals according to the control signal Vctrl as the output voltage signal Vout, and the voltage value o...
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The invention discloses an energy-saving electronic device as well as a power control system of a cooling fan and a control method. The power control system of the cooling fan comprises a voltage selection circuit and a voltage conversion circuit, wherein the voltage selection circuit is used for receiving multiple voltage signals and control signals provided by a plurality of voltage input ends and selecting one voltage signal as an output voltage signal according to the control signals; and the voltage conversion circuit is connected with the voltage selection circuit and is used for receiving the output voltage signal and the control signals and converting the voltage value of the output voltage signal into a working voltage required for the cooling fan according to the control signals, so as to drive the cooling fan.
Description
technical field [0001] The invention relates to the technical field of cooling fan control, in particular to a cooling fan power supply control system and a control method applied in energy-saving electronic devices. Background technique [0002] In current electronic devices, cooling fans are mostly driven by a voltage signal with a single voltage value directly provided by the electronic device, so that the cooling fan can maintain a high-speed operation state for a long time, or the electronic device uses the control circuit to step down the voltage signal to a different voltage value , to provide the required voltage for cooling fans at different speeds. [0003] However, if the cooling fan operates at a low speed, it only needs to be driven by a low voltage, so the control circuit needs to consume most of the electric energy in the form of heat dissipation, which may cause the problem that the temperature of the control circuit may be too high, and many Environmental p...
Claims
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IPC IPC(8): H02M3/00H02M3/155F04D27/00
Inventor 林祥瑞
Owner ELITEGROUP COMPUTER SYSTEMS