Power supply device of direct-current fan, configuration method thereof and power supply system
A technology of power supply device and DC fan, which is applied in the field of circuits, can solve problems such as the mismatch between the fan and the DC power supply system, and achieve the effect of avoiding waste
Pending Publication Date: 2018-01-19
GREE ELECTRIC APPLIANCES INC
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Problems solved by technology
[0005] Embodiments of the present invention provide a power supply device for a DC fan, its configuration method, and a power supply system, so as to at least solve the technical problem that the fan does not match the DC power supply system
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[0027] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.
[0028] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate ...
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The invention discloses a power supply device of a direct-current fan, a configuration method thereof and a power supply system. The power supply device comprises an mos drive circuit, a cuk choppingcircuit, a current detection circuit, a voltage detection circuit, and a control circuit of the power supply device. The input end of the mos drive circuit is connected with a PWM control signal. Theoutput end of the mos drive circuit is used for controlling the output voltage. The input end of the cuk chopping circuit is connected with the output end of the mos drive circuit and is used for enabling the voltage output by the cuk chopping circuit to be opposite to the voltage input to the cuk chopping circuit. The current detection circuit is connected to the output end of the cuk chopping circuit and is used for detecting the output current of the power supply device. The voltage detection circuit is connected to the output end of the cuk chopping circuit and is used for detecting the output voltage of the power supply device. The control circuit of the power supply device is connected with the mos drive circuit and is also connected with the current detection circuit and the voltagedetection circuit. The control circuit is used for generating a PWM control signal according to the detected voltage value and the detected current value, and controlling the voltage and the power output by the power supply device according to the PWM control signal. According to the invention, the technical problem that a fan is not matched with a direct-current power supply system is solved.
Description
technical field [0001] The invention relates to the field of circuits, in particular to a power supply device for a DC fan, a configuration method thereof, and a power supply system. Background technique [0002] In recent years, there are more and more types of DC fans with different voltage / current standards, and they are widely used in industrial and civil air-cooling fields. They have the advantages of wide power supply range, simple control, and high cost performance. However, in practical applications, especially when it is necessary to replace fans of different power levels or require multiple fans to work together, it is necessary to replace the power supply of the corresponding power level or configure a dedicated power supply for each fan; in addition, in different In the DC power supply system, the DC power distribution amplitude of the system is also different, which will greatly increase the project cost and reduce the product's competitive advantage. [0003] ...
Claims
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IPC IPC(8): H02M3/07H02M1/08
Inventor 黄明王京姜颖异张羽尤英帅邹家富蒋世用张雪芬刘克勤
Owner GREE ELECTRIC APPLIANCES INC