A ballast that reduces programming ports and improves anti-interference performance

Abstract

The invention discloses a ballast capable of reducing programming ports and improving the anti-interference performance, which comprises an ICD2 programming device, programming lines and pins, whereinthe programming lines are connected with the ICD2 programming device in an electrical mode; one end of each programming line is connected with a single-chip microcomputer; the pins are located on thesingle-chip microcomputer; the number of the pins is four, and the four pins are a VPP pin and a VDD pin, a PGD pin and a PGC pin which are sequentially located at one side of the VPP pin; the numberof the programming lines is four, and the four programming lines are a programming voltage line and a power supply positive voltage line, a two-way synchronous data line and a one-way synchronous serial clock signal line which are sequentially located at one side of the programming voltage line; the single-chip microcomputer is provided with a reset circuit at the VPP pin; and the reset circuit is composed of a voltage positive electrode, a resistor connected through the voltage positive electrode, a diode connected at a negative electrode end of the resistor and a filter capacitor connectedat a negative electrode end of the diode. The ballast provided by the invention not only reduces the pins and simplifies programming ports, but also has an anti-interference function.

Description

technical field [0001] The invention relates to the technical field of ballasts, in particular to a ballast which reduces programming ports and improves anti-interference performance. Background technique [0002] Illumination is closely related to the growth of plants, maximizing the capture of light energy and giving full play to the potential of plant photosynthesis is directly related to the benefits of agricultural production. With the promotion of market demand, greenhouses are generally used to produce off-season flowers, fruits, vegetables, etc., and supplementary light plays a pivotal role in greenhouse cultivation. According to the natural law of plant growth and the principle that plants use sunlight for photosynthesis, the plant supplementary light uses light instead of sunlight to provide the light source needed for plant growth and development. Plant fill light ballasts are essential in plant fill light, but the current ballasts have many programming ports, wh...

AI Technical Summary

Problems solved by technology

Plant fill light ballasts are essential in plant fill light, but the current ballasts have many programming ports, which are prone to problems such as poor contact and reduced programming efficiency; second, the VPP pin programming circuit Because there is no filter capacitor at the VPP pin and it is isolated by a diode, when the external connection at VPP is too long, interference often occurs, which affects the normal operation of the ballast

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