High-power dimming electrodeless lamp

Abstract

The invention discloses a high-power dimming electrodeless lamp. The high-power dimming electrodeless lamp comprises an anti-electromagnetic interference filter, a bridge rectifier module, an active power factor corrector, a half-bridge inverter oscillatory circuit, a power output device, a starting controller, a high-frequency coupler, a dimming circuit and an HB0809 integrated circuit, wherein the half-bridge inverter oscillatory circuit is used for converting a direct current voltage into a high-frequency alternating voltage; the power output device is used for supplying output power to the half-bridge inverter oscillatory circuit when the half-bridge inverter oscillatory circuit works; the starting controller is used for controlling the turning on and turning off of the electrodeless lamp; the high-frequency coupler is used for coupling electric energy of the active power factor corrector and the power output device to the lamp tube of the electrodeless lamp; the dimming circuit is connected with an externally connected dimming control circuit; when the externally connected dimming control circuit supplies a 0 to 10-volt direct current (VDC) dimming control voltage signal to the dimming circuit, the dimming circuit works and then converts the alternating voltage into a 18-volt direct voltage; and the HB0809 integrated circuit is connected to the half-bridge inverter oscillatory circuit and used for controlling the alternately turning on and turning off of a first metal oxide semiconductor (MOS) tube and a second MOS tube in the half-bridge inverter oscillatory circuit to set working frequency, ignition time and ignition frequency. By a dimming electrodeless lamp circuit, a dimming function of the high-power electrodeless lamp can be realized.

Description

technical field [0001] The invention relates to an electrodeless lamp, in particular to a high-power dimming electrodeless lamp. Background technique [0002] The low-frequency electrodeless lamp with an oscillation frequency lower than 300KHZ is a new generation of energy-saving products with no filament, high luminous efficiency, long life, and high power factor. Since the electrodeless lamp belongs to the electrodeless start and ignite, there is no damage to the lamp tube due to filament damage or electronic powder emission. And electronic powder sputtering makes the lamp tube black and other problems, which cause the whole lamp to be scrapped. The life of the whole lamp is greatly extended, and the working frequency exceeds 100KHz, and the stroboscopic phenomenon is eliminated. The current power of the electrodeless lamp is in the range of 15-400W, especially suitable for street lamps, tunnel lamps, sidewalks, culverts, especially places where the lamp tubes are not suit...

AI Technical Summary

Problems solved by technology

In today's increasingly tense energy environment, especially in many urban lighting projects, in the use of EMC contract energy management mode, although the energy saving of electrodeless lamps is nearly double that of conventional light sources, in practical applications, people will always find a lot of energy in electrodeless lamp lighting projects. In order to save electricity, some of the street lights are turned off in the middle of the night and early in the morning, or they are turned on only on one side or at intervals. Some places simply use solar street lights on newly developed roads.

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