Frequency stabilization circuit-based high-power and low-noise electronic ballast

Abstract

The invention discloses a frequency stabilization circuit-based high-power and low-noise electronic ballast. The frequency stabilization circuit-based high-power and low-noise electronic ballast is characterized by mainly comprising a processing chip U1, a diode rectifier U, a capacitor C1, an electromagnetic filter circuit, a resistor R2, a resistor R4 and the like, wherein a positive electrode of the capacitor C1 is connected with a positive output end of the diode rectifier U and a negative electrode is connected with a negative output end of the diode rectifier U; the electromagnetic filter circuit is connected with the capacitor C1; one end of the resistor R2 is connected with an RT pin of the processing chip U1 and the other end is connected with the electromagnetic filter circuit; and the resistor R4 is connected between a PGND pin and an SGND pin of the processing chip U1 in series. By the frequency stabilization circuit-based high-power and low-noise electronic ballast, a voltage frequency can be processed; the frequency of output voltage is more stable; and the stroboscopic phenomenon of a fluorescent lamp is avoided, so that the fluorescent lamp emits light more stably. Meanwhile, the frequency stabilization circuit-based high-power and low-noise electronic ballast can also meet the working requirements of the high-power fluorescent lamp.

Description

technical field [0001] The invention relates to a ballast, in particular to a high-power and low-noise electronic ballast based on a frequency stabilization circuit. Background technique [0002] With the development of society, ballasts have been widely used in fluorescent lamps. Ballasts can stabilize the input current within the rated current range of the lamp tube, and the voltage at both ends of the lamp tube is also stabilized within the rated operating voltage range. Inside, it plays the role of reducing voltage and limiting current, which not only protects the fluorescent lamp, but also makes the lighting effect of the fluorescent lamp better. However, traditional ballasts are easily affected by electromagnetic interference signals, resulting in low stability, which seriously affects the service life of fluorescent lamps. Contents of the invention [0003] The purpose of the present invention is to overcome the defect that traditional ballasts are easily affected ...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the defect that traditional ballasts are easily affected by electromagnetic interference signals, and provide a high-power and low-noise electronic ballast based on a frequency stabilization circuit

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