High power factor and greatly energy-saving LED (light-emitting diode) lamp electronic circuit capable of directly rectifying by commercial power

A technology of LED lamps and LED lamp beads, which is applied in the layout of electric lamp circuits, electric light sources, lighting devices, etc., can solve the problems of reactive power occupying transmission power, low power factor, and inability to receive reactive power, so as to save electric energy. Losses, easy access to materials, and the effect of saving electricity

Inactive Publication Date: 2012-02-15
唐德中
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the RC step-down LED lights sold in small quantities on the market realize dozens of lamp beads in series and micro-current, directly use the mains power, cancel the transformer and current-limiting resistor, and the price is low; but: on the one hand, its power The factor is low, the actual power used by the lamp is only 40%-50% of the power displayed by the meter; on the other hand, its reactive power (not displayed by the meter) reaches 40%-200% of the power displayed by the meter, and the power plant cannot receive it. The cost of reactive power, while reactive power occupies a large amount of transmission power of the grid; therefore, only dodge small sales, large-scale use is prohibited

Method used

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  • High power factor and greatly energy-saving LED (light-emitting diode) lamp electronic circuit capable of directly rectifying by commercial power
  • High power factor and greatly energy-saving LED (light-emitting diode) lamp electronic circuit capable of directly rectifying by commercial power
  • High power factor and greatly energy-saving LED (light-emitting diode) lamp electronic circuit capable of directly rectifying by commercial power

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Embodiment Construction

[0031] Such as figure 1 , figure 2 , image 3 As shown, the present invention consists of a lamp holder, bridge rectification, automatic voltage regulation, power factor improvement, high-voltage or low-voltage constant current block, dozens-hundreds of LED lamp beads connected in series, overcurrent and overvoltage protection (Fig. Not shown in the middle) a total of seven parts make up the LED lamp. The LED energy-saving lamp can be used by directly connecting the lamp holder of the original incandescent lamp or the energy-saving lamp through the conventional lamp holder. Can manufacture 1W - 40W civilian lighting and 50W - 200W street lamps.

[0032] Specific implementation:

[0033] One LED lamp, AC switch, 0.1A fuse or self-recovery fuse, four diode bridge rectifiers, electrotechnical formula calculation of inductance and capacitance to improve power factor to 90% - 99%, DC voltage regulation 140V-300V, High-voltage or low-voltage constant current 15mA-20mA, followe...

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Abstract

The invention discloses a greatly energy-saving low-price LED (light-emitting diode) lamp which is characterized by consisting eight parts, i.e. a lamp cap, a bridge rectifier, an automatic voltage regulating part, a power factor improving part, a high voltage or low voltage constant-current block, a lamp bulb string formed in a mode that dozens of LED lamp bulbs are connected in series, an overcurrent overvoltage protection part (which is not drawn in the figure), a lamp holder and the like. The LED energy-saving lamp can be used by being directly switched into a lamp holder of an original electric incandescent lamp or an energy-saving lamp through a conventional lamp cap. A civil illuminating lamp with the power of 1W to 40 W and a street lamp with the power of 50W to 200W can be manufactured.

Description

technical field [0001] The invention relates to an electronic circuit for lighting LED lamps with direct rectification of commercial power, high power factor, low reactive power, and high energy saving; Background technique [0002] At present, the price of low voltage and high DC current LED street lamps is very high. Due to the use of multiple LED lamp cores connected in parallel, in order to limit the current to become a safe current for each LED core, each lamp core uses a current limiting resistor and is connected with a gold wire. Chip resistors are soldered together. [0003] It only uses a transformer to achieve low voltage and high DC current, and at the same time requires high-cost grid circuit transformation; due to the simultaneous use of a transformer and a current-limiting resistor; the luminous efficiency of electric energy is only about 48%. There are no formal products for civilian LED lighting. [0004] However, the RC step-down LED lights sold in small q...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B37/02
Inventor 唐德中
Owner 唐德中
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