System for regulating power factor of energy-saving lamp

A technology for power factor adjustment and energy-saving lamps, which is applied in lighting devices, light sources, electrical components, etc., can solve the problems of the EMC part of integrated electronic energy-saving lamps, the technical stagnation of small power factor compensation devices, and the failure rate of integrated electronic energy-saving lamps Advanced problems, to achieve the effect of saving internal space, reducing conduction interference, and reducing cost

Inactive Publication Date: 2010-06-16
SHANGHAI CHARLES ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, for a long time, the technology of high-power compensation systems based on enterprises has developed rapidly, while the technology of small power factor compensation devices that are light, compact, simple to install, flexible in configuration, and easy to operate is basically stagnant.
[0010] 2. The failure rate of integrated electronic energy-saving lamps is high
[0012] 3. The EMC part of the integrated electronic energy-saving lamp is not considered
[0013] The integrated electronic energy-saving lamp has a very compact structure and low power, so there is no space to arrange EMC lines

Method used

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  • System for regulating power factor of energy-saving lamp

Examples

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Embodiment 1

[0042] Such as Figure 4 As shown, it is an active power supply solution. The EMC filter circuit in the circuit is composed of a piezoresistor F1, an inductor L1, and capacitors C1 and C2. The connection relationship is shown in the figure and will not be described in detail; D4 is formed, and its connection relationship is shown in the figure, so it will not be described in detail; the PFC circuit is composed of embedded PFC chip U1 and its peripheral parameter circuit, BOOST generating voltage inductor L2, MOS tube T1, and main electrolytic capacitor, and its connection relationship is shown in the figure As shown, no further description is given; the embedded PFC chip receives the filtered and rectified current signal, and realizes the power supply to the energy-saving lamp by controlling the peripheral parameter circuit, BOOST generating voltage inductor, MOS tube and main electrolytic capacitor, so as to improve the power supply The power factor of the system.

Embodiment 2

[0044] Such as Figure 5 As shown, it is a passive power supply solution. The EMC filter circuit is composed of piezoresistor F2, inductors L21-L23, and capacitors C21-C29 connected to each other. The specific connection relationship is shown in the figure and will not be described in detail; Consistent with the bridge rectifier circuit in the active power supply scheme, it is composed of diodes D21-24 connected in sequence, and its connection with the EMC filter circuit is shown in the figure, which will not be described in detail; Diodes D25-28 and resistors R21-24 are connected to each other, and the specific connection relationship is as follows Figure 5Shown, not repeated. When the power supply scheme obtained according to the above technical scheme is working, the incoming current is filtered by the EMC filter circuit, and then rectified by the bridge rectifier circuit before entering the PFC circuit; when the passed current reaches the conduction value of the diode D2...

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Abstract

The invention provides a system for regulating power factor of an energy-saving lamp and relates to a power supply for the energy-saving lamp, in particular to an energy-saving lamp power-supply system capable of enhancing the power factor of the energy-saving lamp. The system comprises a power supply system and a power utilization system, wherein the power supply system comprises a power input end connected with a centralized energy-saving lamp power supply; the centralized energy-saving lamp power supply is provided with a power output end; the power utilization system comprises a plurality of energy-saving lamp lighting tubes which are connected with the power output end of the centralized energy-saving lamp power supply through a power supply circuit; and the centralized energy-saving lamp power supply is used for supplying electricity to the plurality of energy-saving lamp lighting tubes. The system is compatible with the traditional lamp and can supply power to the traditional lamp and order the lamp with no rectifying circuit or main capacitor. Meanwhile, the system supplies power to a plurality of integral energy-saving lamps in a centralized way within a partial range and can greatly enhance the power factor of a power distribution network and the circuit utilization efficiency.

Description

Technical field: [0001] The invention relates to an energy-saving lamp power supply, in particular to an energy-saving lamp power supply system capable of improving the power factor of the energy-saving lamp. Background technique: [0002] The integrated electronic energy-saving lamp is a new type of energy-saving light source that has been popular in domestic and foreign markets recently. It has remarkable features such as small size, light weight, high luminous efficiency, and low-voltage quick start. It can directly replace incandescent bulbs and is used for various lighting and decoration. Favored by people, it has become a key energy-saving product promoted by the country, and is widely used in factories, public buildings and families. [0003] While the integrated electronic energy-saving lamp has the above advantages, it has the following disadvantages in terms of application: [0004] 1. The power factor of the integrated electronic energy-saving lamp is low [000...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B41/36
Inventor 杨晨
Owner SHANGHAI CHARLES ELECTRONICS
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