Power circuit for intelligent variable power high-frequency separately excited electromagnetic induction lamp

An electromagnetic induction lamp and power supply circuit technology, which is applied in the direction of high-efficiency power electronic conversion, electric light source, output power conversion device, etc., can solve the problems of serious power consumption, short life, easy damage of light source, etc., and achieve stable work and use Safe and reliable effect

Inactive Publication Date: 2010-08-25
HEILONGJIANG LAMPING PE TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] my country's urban lighting has developed rapidly. However, in recent years, in the fields of road traffic, landscape and other municipal lighting, factory lighting in workshops, commercial lighting in shopping malls and hotels, and lighting in public utilities such as hospitals

Method used

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  • Power circuit for intelligent variable power high-frequency separately excited electromagnetic induction lamp
  • Power circuit for intelligent variable power high-frequency separately excited electromagnetic induction lamp
  • Power circuit for intelligent variable power high-frequency separately excited electromagnetic induction lamp

Examples

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Example Embodiment

[0017] Example 1:

[0018] As shown in Figure 1, the principle block diagram of the power supply circuit of the chip-driven intelligent variable power high-frequency other-excited electromagnetic induction lamp consists of a filter rectifier circuit 1, and the power supply is rectified by the filter rectifier circuit and then sent to the power factor correction circuit 2 to obtain high The direct current of power factor, the direct current is modulated by the power control circuit 3 and the high-frequency signal drive circuit 4 to generate a high-frequency and high-voltage working power supply, and the phosphor powder on the inner wall of the bulb is stimulated to emit light through the coupling matching circuit 5 by using the principle of electromagnetic induction. The single-chip microcomputer intelligent control chip 6 generates a stable high-frequency signal to the high-frequency signal drive circuit 4 as an excitation source for its exciting power supply, and can receive c...

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Abstract

The invention relates to a power circuit for an intelligent variable power high-frequency separately excited electromagnetic induction lamp. The power supply of the conventional high-frequency electromagnetic induction lamp adopts the self-excited vibration mode and realizes frequency matching by using an LC series resonant circuit. The resonant frequency can be influenced by parameter change of each element of the series resonant circuit so as to cause problems of difficult debugging, unstable working frequency, higher error rate in the using process and immutable power. The power circuit of the invention comprises a filter rectification circuit (1), wherein the filter rectification circuit is connected with a power factor correcting circuit (2); the power factor correcting circuit is connected with a power regulating circuit (3); and the power regulating circuit and a high-frequency signal driving circuit (4) which is controlled by a singlechip intelligent control chip (6) are connected with a power coupling matching circuit (5). The product is used on occasions with specific requirements on the power at different time intervals.

Description

Technical field: [0001] The invention relates to a chip-driven intelligent variable power high-frequency separately excited electromagnetic induction lamp power supply circuit. Background technique: [0002] my country's urban lighting has developed rapidly. However, in recent years, in the fields of road traffic, landscape and other municipal lighting, factory lighting in workshops, commercial lighting in shopping malls and hotels, and lighting in public utilities such as hospitals and schools, there are problems with high power and long running time of lighting equipment. The phenomenon of long life, and most of them have not taken energy-saving measures, there are widespread phenomena such as serious power consumption, easy damage to the light source, and short service life. According to the survey, after 9 o'clock in the evening in small cities in my country, and after 12 o'clock in the middle of the night in large and medium-sized cities, there are few pedestrians on mos...

Claims

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Application Information

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IPC IPC(8): H05B41/282H02M1/42
CPCY02B70/126Y02B70/10
Inventor 于连涛
Owner HEILONGJIANG LAMPING PE TECH
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