Leafless fan system based on PID negative feedback regulation and control method of leafless fan system

A technology of negative feedback adjustment and bladeless fan, which is applied in the direction of pump control, non-variable pump, machine/engine, etc., to achieve the effects of reduced energy consumption, convenient use, and improved stability

Active Publication Date: 2017-06-20
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

and maintain a stable wind speed

Method used

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  • Leafless fan system based on PID negative feedback regulation and control method of leafless fan system
  • Leafless fan system based on PID negative feedback regulation and control method of leafless fan system
  • Leafless fan system based on PID negative feedback regulation and control method of leafless fan system

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Embodiment Construction

[0036] The present invention will be further described below in conjunction with the accompanying drawings.

[0037] Such as figure 1 As shown, a bladeless fan system based on PID negative feedback adjustment includes a digital tube display module, a key input module, a pressure sensor module, a bias follower module, a serial port AD conversion module, a motor drive module, a fan motor, a step-down module, Control module, first switching power supply, second switching power supply; the first switching power supply converts 220V commercial power into 24V voltage, and the second switching power supply converts 220V commercial power into 12V voltage; the pressure sensor module, bias The follower module, the serial port AD conversion module and the control module are connected in sequence, the first switching power supply is connected to the fan motor, the fan motor is connected to the motor drive module, the motor drive module, the digital tube display module, the button input mo...

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Abstract

The invention discloses a leafless fan system based on PIC negative feedback regulation and a control method of the leafless fan system. The system comprises a digital tube display module, a key input module pressure sensor module, a bias following module, a serial port AD conversion module, a motor driving module, a fan motor, a pressure reduction module, a control module, a first switch power source and a second switch power source. The first switch power source is used for converting 220 V mains supply into the voltage of 24 V, and the second switch power source is used for converting 220V mains supply into the voltage of 12V. The pressure sensor module, the bias following module, the serial port AD conversion module and the control module are sequentially connected. The first switch power source is connected with the fan motor. The fan motor is connected with the motor driving module. The motor driving module, the digital tube display module, the key input module and the pressure reduction module are all connected with the control module. The second switch power source is connected with the pressure reduction module. According to the leafless fan system and the control method, the negative feedback structure is adopted, and the current output stability is improved effectively.

Description

technical field [0001] The invention designs a bladeless fan, especially a technology for controlling wind speed based on MSP430 through negative feedback PID regulation. Background technique [0002] We know that fans can be said to be ubiquitous in life, and everyone is used to it. So I don't feel the danger of it. In fact, because the fan has metal blades, and the speed is extremely fast when it rotates, it will hurt people if you are not careful, and it is very dangerous to cut off your fingers or hair, and it is even fatal. It is used in the hot summer. After the summer is over, if it is left for a long time, it will be covered with dust, which will affect the appearance and make it difficult to clean. [0003] In order to solve these problems, people have made many efforts on fans. For example, the fan blades are very dangerous, so a protective cover is added to isolate the blades from the outside world, but curious children can't help but reach in and touch the rot...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D27/00
CPCF04D27/004
Inventor 韩经纬沈建新
Owner ZHEJIANG UNIV
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