LED (Light Emitting Diode) control device and LED illumination equipment with same

Abstract

The invention discloses an LED (Light Emitting Diode) control device and LED illumination equipment with the same. The LED control device receives a voltage source from a power supply circuit and comprises a temperature detection circuit, a fan control circuit and a synchronous control circuit, wherein the temperature detection circuit is connected with the power supply circuit; the fan control circuit is connected with the temperature detection circuit and a fan blade sensing circuit of a cooling fan; the synchronous control circuit is connected with the fan blade sensing circuit and a driving circuit of an LED lamp and is used for controlling the on and off of the driving circuit; when the power supply is turned on, the LED control device synchronously detects whether abnormal conditions occur or not; if the abnormal conditions that the temperature of the LED lamp is overhigh, the cooling fan is damaged or fan blades of the cooling fan are clamped by foreign matters and the like occur, the LED control device actively turns off the LED lamp. Therefore the aim of synchronously controlling whether the supply of a driving power supply of the LED lamp is realized or not can be realized under the control conditions of temperature and fan operation, and further the illumination quality and safety of the LED illumination equipment when the LED illumination equipment is lightened are guaranteed.

Description

technical field [0001] The invention relates to an LED control device and an LED lighting device with the LED control device. Background technique [0002] In recent years, light emitting diodes (Light Emitting Diodes, LEDs) have gradually received attention. Compared with traditional incandescent light bulbs, LED lamps have the advantages of high illuminance, energy saving, long service life, high durability and fast response, so the demand in the lighting market is increasing year by year. [0003] However, the high operating temperature accompanied by high-brightness lighting requirements not only reduces the luminous efficiency of LED lamps that are very sensitive to temperature changes, but also accelerates the aging of LED lamps and greatly shortens the service life of LED lamps. . Therefore, in addition to passively enlarging the volume of the heat sink, a cooling fan is also required to actively help the LED lamp to dissipate heat, so as to achieve the purpose of c...

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Problems solved by technology

[0004] However, even with a cooling fan, it is still possible that due to long-term and uninterrupted use, the heat dissipation cannot catch up with the heating rate, resulting in the temperature of the LED light being too high, or the cooling fan itself is damaged, and the blades are stuck by foreign objects. However, abnormal conditions such as the failure of the cooling fan to dissipate heat smoothly, lead to the recurrence of the problems of high temperature light decay and insufficient life, and may even cause explosions and fires due to temperature out of control, seriously affecting LED lamps. lighting quality and safety

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