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Low pressure sodium lamp ballast

A technology of low-pressure sodium lamps and ballasts, which is applied in lighting devices, light sources, electrical components, etc., can solve the problems of high energy consumption and affecting the working life of lamp tubes, and achieve the effects of stable circuit operation, simple structure, and reliable protection work

Inactive Publication Date: 2016-05-18
廖蓉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the technical defects that the existing low-pressure sodium lamp ballast seriously affects the working life of the lamp tube and high energy consumption, the invention discloses a low-pressure sodium lamp ballast

Method used

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  • Low pressure sodium lamp ballast

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Embodiment Construction

[0012] The present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0013] The low-voltage sodium lamp ballast of the present invention includes a battery charger, a DC battery, a DC / DC boost module and a DC / AC inverter module connected in sequence, the output end of the DC / AC inverter module is connected to the low-pressure sodium lamp, It also includes a drive controller that controls the DC / DC step-up module and the DC / AC inverter module.

[0014] System block diagram as figure 1 as shown in figure 1 shown. The main circuit is basically divided into two parts, the first part is a DC / DC boost circuit, and the second part is an inverter part. Essentially, it is a DC / DC / AC conversion circuit.

[0015] The DC / DC drive chip adopts the voltage-type PWM controller SG3525A produced by Silicon Communications Corporation of the United States. SG3...

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Abstract

The invention discloses a low pressure sodium lamp ballast, which comprises a battery charger, a DC battery, a DC-DC step-up module and a DC-AC inverter module connected in sequence, wherein the output end of the DC-AC inverter module is connected with the low pressure sodium lamp. The low pressure sodium lamp ballast also comprises a driving controller for controlling the DC-DC step-up module and the DC-AC inverter module. According to the low pressure sodium lamp ballast, the circuit works stably, each kind of protection work is reliable, constant power control is realized basically, the starting circuit can be started reliably for multiple times, and the structure is simple.

Description

technical field [0001] The invention relates to the field of electronic circuits, in particular to a low-pressure sodium lamp ballast. Background technique [0002] Solar energy as green energy will be an energy-saving project vigorously promoted by the country, and low-pressure sodium lamp is the best light source for energy-saving renovation of lighting projects and solar lighting systems. It has high luminous efficiency of 200lm / W and long life, high visual resolution and good contrast. , the advantages of not being affected by the ambient temperature are widely used in roads, viaducts, tunnels and intersections and other places with high visibility and low color rendering requirements. The low-pressure sodium lamp also has no glare, and will not cause premature damage to the optical system of the lamp due to the erosion of the ambient gas. [0003] In the past, low-voltage sodium lamps used traditional auto-coupling magnetic flux leakage inductance ballasts. Due to thei...

Claims

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Application Information

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IPC IPC(8): H05B41/288
Inventor 廖蓉
Owner 廖蓉