Distributed type safety setting method of LED (light emitting diode) daylight light source board driven by IC (integrated circuit)
A technology of LED fluorescent lamps and light source boards, which is applied in the field of LED lighting, can solve problems such as the inability to realize mass production, the failure of IC drive solutions to be used in LED fluorescent lamps, and the failure of parasitic capacitance to pass safety inspections, so as to achieve reasonable structural settings and wiring, and solve the problems. Evenly distribute conflicts to achieve the effect of safety design
Active Publication Date: 2014-08-20
西安明泰半导体科技有限公司
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Problems solved by technology
[0005] The purpose of the present invention is to provide an IC-driven LED fluorescent light source board distributed safety regulation setting method, which solves the problem that the IC driving scheme in the prior art cannot be applied to LED fluorescent lamps, and the application cannot pass the safety inspection due to the existence of parasitic capacitance. Problems in achieving commercial mass production
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[0018] refer to figure 1 The structure of the light source board of the present invention is to include various components distributed on the light source board, including AC input pad 1, input preprocessing circuit 2, multiple IC drivers 3, LED lamp beads 4 and corresponding auxiliary devices 5 .
[0019] In general, the length L of the light source board is generally 300-1500mm, and the width T is generally 10-36mm. A series of LED lamp beads 4 are arranged along the longitudinal centerline of the light source board. In the connection area, there is no need to arrange LED lamp beads, and the M is generally 10-36mm. The present invention effectively utilizes the M area at both ends, and the AC input pad 1 and the input preprocessing circuit 2 are arranged in the M area of one end. If possible, an IC driver 3 can also be arranged, and an IC driver 3 can be arranged in the M area of the other end. IC driver 3 and other auxiliary devices 5, if there are other IC drivers 3 ...
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The invention discloses a distributed type safety setting method of an LED (light emitting diode) daylight light source board driven by an IC (integrated circuit). A light source plate is manufactured by adopting a PCB (printed circuit board); wires are distributed at the front and back sides of the light source plate in a distributing mode; and the safety design of the LED daylight light source board is conducted, wherein the PCB is made of an FR4 or CEM-3 double-sided commercial PCB of which the heat conduction coefficient is not less than 0.35w / m.k and the thickness is 06-1mm; the light source plate is provided with the wires in a non-protected ground wiring mode and a welding disc; an electric creep age distance which is not less than 3mm needs to be reserved at the edge of the light source plate; a certain blank area is reserved between two ends of the light source plate and a joint; 2-4 IC drivers are distributed on the light source plate in a sectional mode; and LED beads are uniformly distributed. According to the method provided by the invention, the wiring is reasonable, the requirements on the heat conduction and heat radiation of an LED daylight lamp are completely met, a parasitic capacitance is remarkably reduced, and the safety design is realized.
Description
technical field [0001] The invention belongs to the technical field of LED lighting, and relates to a distributed safety regulation setting method for an IC-driven LED fluorescent light source board. Background technique [0002] IC drive is the direction of the ultimate solution for LED lighting drive, that is, LED drive does not need the drive power in the traditional sense, but is driven by an integrated circuit (IC), which not only greatly simplifies the LED lighting circuit, reduces costs, and truly realizes LED The life of lighting fixtures is comparable to the 50,000-hour lifespan of LED itself. At the same time, the manufacturing process of LED lamps is simplified, which is extremely suitable for mass production. [0003] For the problem of IC drive, the industry has been clamoring for many years. Currently, Seoul Semiconductor Corporation in South Korea is the representative. The core of the so-called AC / HV drive solution is still integrated circuit IC drive, with c...
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IPC IPC(8): F21S2/00F21V19/00F21V23/00F21Y101/02F21K9/275F21K9/278F21Y103/10F21Y115/10
Inventor 邢先锋刘义芳
Owner 西安明泰半导体科技有限公司