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Digital-electronic ballast circuit of electromagnetic induction lamp

A technology of electromagnetic induction lamps and digital electronics, applied in electric light sources, electrical components, lighting devices, etc., can solve the problems of inconsistent lamp parameters, poor start of electromagnetic induction lamps, affecting the service life of lamps and couplers, etc. The effect of prolonging service life and solving communication problems

Inactive Publication Date: 2015-06-24
ANHUI ZHUOYUE ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the electromagnetic induction lamp ballast has the following shortcomings: due to the inconsistency of the parameters of the lamp tubes used by domestic and foreign manufacturers, the electromagnetic induction lamps are not started properly, and the service life of the lamp tubes and couplers is affected.

Method used

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  • Digital-electronic ballast circuit of electromagnetic induction lamp

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Embodiment Construction

[0018] figure 1 The digital electronic ballast circuit for electromagnetic induction lamp shown is composed of rectification filter circuit, PFC power factor control circuit, half bridge drive circuit, load matching circuit, embedded microprocessor controller circuit, protection circuit, 485 communication circuit and corresponding software. .

[0019] The rectification and filtering circuit, the overvoltage and undervoltage protection circuit, the PFC power factor control circuit, the half-bridge drive circuit, and the load matching circuit are connected in sequence. The microprocessor is connected with the overvoltage and undervoltage protection circuit, the half-bridge drive circuit and the 485 communication circuit.

[0020] working principle:

[0021] The AC voltage is converted to DC voltage after EMI filtering (differential mode noise filtering, common mode noise filtering), rectification and capacitor filtering. The PFC power factor control circuit uses soft switchin...

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Abstract

The invention discloses a digital-electronic ballast circuit of an electromagnetic induction lamp. The digital-electronic ballast circuit comprises a rectification filter circuit, an overvoltage and undervoltage protection circuit, a PFC power factor control circuit, a half-bridge driving circuit, a load matching circuit, a microprocessor and a serial communication interface. The rectification filter circuit, the overvoltage and undervoltage protection circuit, the PFC power factor control circuit, the half-bridge driving circuit and the load matching circuit are connected in sequence. The microprocessor is connected with the overvoltage and undervoltage protection circuit, the half-bridge driving circuit and the serial communication interface. The problem that the electromagnetic induction lamp is started poorly due to the fact that lamp tube parameters of domestic and foreign manufacturers are inconsistent is solved, and the service lives of lamp tubes and couplers can be prolonged. Digital dimming of the electromagnetic induction lamp can be achieved.

Description

technical field [0001] The invention relates to a digital electronic ballast circuit for an electromagnetic induction lamp. Background technique [0002] As a new light source that has developed rapidly in recent years, electromagnetic induction lamps will not cause blackening caused by electrode oxidation, sputtering, loss and sealing due to the absence of electrodes. It has the characteristics of high light efficiency, stable light color and long life. Electromagnetic induction lamp gas discharge lighting technology is an interdisciplinary emerging technology, which involves many fields such as power electronics technology, gas discharge and luminescence theory, plasma theory, electromagnetic field theory, etc. Since the electromagnetic induction lamp has many advantages that other light sources do not have, the study of the electromagnetic induction lamp lighting system has practical application value and potential huge commercial value. In the past 10 years, the electr...

Claims

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Application Information

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IPC IPC(8): H05B41/285
Inventor 王连明王有锁赵其三周星星
Owner ANHUI ZHUOYUE ELECTRIC
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