Power factor compensation type LED energy-saving lighting lamp

A power factor compensation and lighting technology, which is applied to lighting devices, light sources, electrical components, etc., can solve problems such as transient voltage breakdown of LEDs, and achieve the effects of reducing power loss, saving power consumption, and saving energy

Inactive Publication Date: 2008-08-20
张亦翔
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The present invention perfectly solves the problem of transient voltage breakdown of the LED when the LED is lighted by the capacitive step-down and current-limiting method

Method used

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  • Power factor compensation type LED energy-saving lighting lamp
  • Power factor compensation type LED energy-saving lighting lamp
  • Power factor compensation type LED energy-saving lighting lamp

Examples

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Embodiment Construction

[0019] 1. see Figure 4 The schematic circuit diagram of the first embodiment of the DC pulsating current driving method scheme of the present invention. When C1 is 0.56uF / 630V, VAC=AC220V, C2 takes 0.82uF / 250V, N takes 10, and K is about 0.9, which can be calculated by substituting into (Formula 1) F =30mA, optional LED with an average working current of 30mA.

[0020] The constant current source Io that plays a protective role limits the maximum peak current flowing through the LED. Here it is taken as 50mA. Substituting it into (Formula 2) can be calculated as R3=12Ω. Since the base of the constant current tube has a stable voltage, the current even when there is an instantaneous There is not much fluctuation in the state voltage. C1:C2 is about 2:3, the highest peak voltage that can be added to the constant current source after rectification is about 2 / 5 of the peak value of 220V AC voltage, about 120V, DZ1 uses P6KE150A (150V / 5W, instantaneous peak power 600W / 1ms ), th...

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PUM

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Abstract

The invention relates to an LED energy saving lighting lamp applied to AC network power factor compensation. To realize said object, the invention provides a technical resolvent: the LED energy saving lighting lamp is lighted by AC with capacitance voltage-dropping and current-limiting, the lamp shows capacitive in AC network and plays an power compensation role. The invention solves problem that transient voltage breakdown LED by using capacitance voltage-dropping and current-limiting to light LED. The LED energy saving lighting lamp provided by the invention also can be used as a power factor compensator. As the LED energy saving lighting lamp, it has merits of power saving, high-brightness, long service time; as the power factor compensator, it has merits of increasing power factor, reducing power loss, absorbing harmful pulse of power network, and has power saving function, can convert reactive power into active power. The LED energy saving lighting lamp has low-cost, can improve harmonic current of AC network, upgrade power factor of AC network and save energy source if the LED energy saving lighting lamp is extended to every families.

Description

technical field [0001] The invention relates to an LED energy-saving lighting lamp suitable for AC grid power factor compensation, which is not only an LED energy-saving lighting lamp, but also a power factor compensator; it can be called a power factor compensation type LED energy-saving lighting lamp, and can also be called LED energy-saving lighting type power factor compensator. Background technique [0002] Global energy is facing a crisis. In order to effectively use energy, the International Electrotechnical Commission (I.E.C) has formulated a series of specifications for the power supply of electrical appliances. IEC-1000 is the specification for harmonic current in power supply, and the power factor compensation method is currently the most effective. One of the methods, the reactive power compensation equipment commonly used by power users is capacitors. The so-called power factor is the ratio of useful work to total power, that is, the ratio of useful work to th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B33/08H05B44/00
Inventor 张亦翔张飞然
Owner 张亦翔
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