Lamp control circuit and trigger control method thereof
A control circuit and trigger control technology, applied in the field of lighting, can solve the problems of damaged bulb electrodes, shortened bulb life, damage, etc., and achieve the effect of prolonging the service life
Active Publication Date: 2016-07-20
OCEANS KING LIGHTING SCI&TECH CO LTD +3
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Problems solved by technology
The bulb is self-extinguished due to voltage fluctuations. After the bulb is self-extinguished, the trigger circuit of the lamp continues to trigger, and the gas discharge in the hot state causes the bulb to be unable to start hot. The long-term high-voltage pulse will damage the bulb electrode, resulting in shortened life of the bulb or even damage.
Furthermore, in unattended industrial sites and lamps installed at high altitudes, the light bulb has not been replaced for a long time after the light bulb has expired and extinguished, and the trigger circuit is constantly triggered, resulting in a reduction in the life of the trigger circuit or even damage
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[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0022] The following will combine Figure 1 to Figure 3 A lamp control circuit and a trigger control method provided by the embodiments of the present invention are described.
[0023] see figure 1 , figure 1 It is a schematic diagram of the process structure of the first embodiment of a lighting control circuit provided by the embodiment of the present invention, specifically as follows:
[0024] The detection comparison circuit 101, the first terminal is conne...
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The embodiment of the invention discloses a lamp control circuit. The lamp control circuit comprises a detection comparison circuit, a control circuit, an outage protection circuit and a trigger circuit, wherein a first end of the detection comparison circuit is connected with the trigger circuit, a second end of the detection comparison circuit is connected with the control circuit and is used for detecting a power grid voltage of the first end of the detection comparison circuit and a working voltage of the second end and outputting a level signal to the control circuit, the control circuit is connected with the outage protection circuit and is used for conducting the outage protection circuit and starting countdown of a preset time set in advance and countdown quantity of preset trigger frequency of the control circuit, the outage protection circuit is connected with the trigger circuit and is used for triggering the trigger circuit on the condition that the outage protection circuit is conducted, the trigger circuit is connected with a high intensity discharge (HID) light source, and in the preset time, the trigger circuit stops triggering if the HID light source is turned on by the trigger circuit. With the adoption of the embodiment of the invention, the trigger circuit can be effectively protected, and the service lifetime of a lamp is prolonged.
Description
technical field [0001] The invention relates to the field of lighting technology, in particular to a lamp control circuit and a trigger control method. Background technique [0002] Often, in the case of large voltage fluctuations, such as gas stations, large factories, etc., the frequency and amplitude of voltage fluctuations are relatively large. The bulb is self-extinguished due to voltage fluctuations. After the bulb is self-extinguished, the trigger circuit of the lamp continues to trigger, and the gas discharge in the hot state prevents the bulb from being hot-started. Long-term high-voltage pulses will damage the bulb electrodes, resulting in shortened bulb life or even damage. Furthermore, in unattended industrial sites and lamps installed at high altitudes, the light bulb has not been replaced for a long time after the light bulb is extinguished due to the expiration of its life, and the trigger circuit is constantly triggered, resulting in a reduction in the life o...
Claims
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IPC IPC(8): H05B37/02
Inventor 周明杰管伟芳
Owner OCEANS KING LIGHTING SCI&TECH CO LTD