12V direct-current air cooling control module

Abstract

The invention discloses a 12V direct-current air cooling control module used for monitoring and controlling the rotary speed of a fan freely, saving energy consumption and reducing noise. The 12V direct-current air cooling control module provided by the invention consists of a backboard connector, a hot plug circuit, a filtering decoupling circuit, a high-frequency (PWM) control circuit and a fan connector; the hot plug circuit consists of a filter, a first voltage divider, a current detection resistor, a hot plug controller, a timer, a second voltage divider and a switch tube; the filtering decoupling circuit consists of a common filter and four branched filters; and the high-frequency PWM control circuit consists of a pulse-width modulation controller and a signal electric level presetting circuit. The 12V direct-current air cooling control module provided by the invention can be used for monitoring and controlling the rotary speed of the fan freely and can realize the operations of hot plugging, replacement and the like for the fan, thereby saving a great amount of electricity energy, reducing noise greatly, prolonging the service life of the fan and reducing the operation cost of the system.

Description

technical field [0001] The invention relates to an air-cooled control module, in particular to a 12V DC air-cooled control module. Background technique [0002] With the increasing power density of high-performance computers, it is an important research content of high-performance computer system cooling technology to reduce the electrical power of supporting cooling facilities and improve the overall energy efficiency of the whole system while realizing efficient and reliable heat dissipation of computer systems. The forced air cooling heat dissipation technology has been used for a long time because of its simple process, low cost and remarkable heat dissipation effect. With the improvement of assembly density and the change of power supply scheme, the demand for wind pressure and air volume is increasing, and the demand for the number of fans is increasing. This creates additional problems: the power consumption increases dramatically, and the noise becomes increasingly ...

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is: in order to completely solve the interference impact of the fan current on the bus voltage, high noise, high power loss, and low fan life that cannot be completely solved by simple switch control, linear control, low-frequency pulse width modulation and other technologies , Insufficient fan monitoring and control, etc., the present invention provides a 12V DC air-cooled control module, which realizes the monitoring and arbitrary control of the fan speed to save energy consumption and reduce noise, and at the same time realizes operations such as live plugging and replacement of the fan module , and share the 12V DC bus with other circuits in the data system without negative impact, and improve the service life of the fan

Images