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Electrodeless discharge lamp lighting device, light bulb type electrodeless fluorescent lamp and discharge lamp lighting device

A lighting device, a technology of discharge lamps, applied in the use of discharge lamps, gas discharge lamps, electric light sources, etc., can solve problems such as incoordination

Inactive Publication Date: 2005-03-16
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Even if the dimmable incandescent light bulb is dimmed in this way, since the change of the light beam is continuous, users who use the dimmable incandescent light bulb will feel very strongly the discomfort of using the dimmable electrodeless bulb-shaped fluorescent lamp. coordination

Method used

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  • Electrodeless discharge lamp lighting device, light bulb type electrodeless fluorescent lamp and discharge lamp lighting device
  • Electrodeless discharge lamp lighting device, light bulb type electrodeless fluorescent lamp and discharge lamp lighting device
  • Electrodeless discharge lamp lighting device, light bulb type electrodeless fluorescent lamp and discharge lamp lighting device

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Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0071] figure 1 The configuration of the discharge lamp lighting device (electrodeless discharge lamp device) according to Embodiment 1 of the present invention is schematically shown. figure 2 It is a cross-sectional view in a case where the discharge lamp lighting device according to the present embodiment is configured as an electrodeless light bulb-shaped fluorescent lamp.

[0072] The electrodeless bulb-shaped fluorescent lamp of this embodiment includes: an electrodeless fluorescent lamp 3; a lighting circuit 4 (circuit board 54) for applying a high-frequency voltage to the electrodeless fluorescent lamp 3; Lamp holder 56. exist figure 2 shown on circuit substrate 54, formed figure 1 The lighting circuit 4 is shown. Specifically, on the circuit board 54, the wiring of the configuration shown in the lighting circuit 4 is formed, and each circuit element is mounted.

[0073] like figure 2 As shown, the electrodeless bulb-shaped fluorescent lamp is integrally compo...

Embodiment approach 2

[0113] Next, Embodiment 2 of the present invention will be described with reference to FIG. 6 . The discharge lamp lighting device of this embodiment is similar to the configuration shown in the above-mentioned first embodiment, but the configuration of the saw wave generating circuit 20 that detects the on-off of the phase-controlled voltage is different from the above-mentioned first embodiment. In the configuration, it can be configured inexpensively without using an IC.

[0114] FIG. 6 shows a circuit for detecting the on-off of the phase-controlled voltage according to the present embodiment, and particularly shows the configuration of the saw wave generating circuit 20 . In addition, the same configurations as those in Embodiment 1 described above are given the same reference numerals, and redundant explanations are omitted.

[0115]The saw wave generating circuit 20 shown in FIG. 6 has a differentiating circuit 201, a diode 202, a transistor 203, and a capacitor 204, a...

Embodiment approach 3

[0121] Figure 7 It is a circuit diagram showing a discharge lamp lighting device according to Embodiment 3 of the present invention. The difference from Embodiment 1 above is that the discharge vacuum tube 17' has electrodes, and the configuration of the load resonance circuit for lighting the electrode-equipped fluorescent lamp 3' is different. In addition, the same configurations as those in Embodiment 1 described above are given the same reference numerals, and description thereof will be omitted.

[0122] The composition of this embodiment, such as Figure 7 As shown, an LC resonance circuit composed of a fluorescent lamp 3', an inductor coil 13 for resonance, a capacitor 15 for resonance, and a capacitor 14 for resonance and waste heat is connected between the drain terminal and the source terminal of MOSFET 12.

[0123] In the configuration of the present embodiment, if a high voltage as a resonance voltage is generated across the capacitor 14 of the LC resonant circu...

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Abstract

An electrodeless discharge lamp operating device including an electrodeless discharge lamp 3 and a ballast circuit 4, wherein the ballast circuit 4 includes: an AC-DC converter 5 for converting a phase-controlled AC voltage into a DC voltage; a DC-AC converter 6 formed so as to intermittently drive the electrodeless discharge lamp 3 due to the existence of an operating period during which a high-frequency voltage is applied to the electrodeless discharge lamp 3 so that the electrodeless discharge lamp 3 is operated, and an extinguishing period during which the generation of the high-frequency voltage is stopped so that the electrodeless discharge lamp 3 is extinguished; and a dimming controller 7 for detecting the turn-on of the phase-controlled AC voltage, for outputting an intermittent command signal that changes the ratio between the operating period and the extinguishing period to the DC-AC converter 6, and for outputting a signal that maintains an intermittent dimmable operating state even if dimming state is in full illumination.

Description

technical field [0001] The present invention relates to a discharge lamp lighting device and an electrodeless discharge lamp device. More specifically, it relates to an electrodeless bulb-shaped fluorescent lamp capable of dimming the electrodeless fluorescent lamp. Background technique [0002] Since fluorescent lamps are more efficient than incandescent light bulbs and have a longer life, they are widely used from the viewpoints of protecting the global environment and economic efficiency. In recent years, since electrodeless light bulb-shaped fluorescent lamps have a life several times longer than conventional light bulb-shaped fluorescent lamps with electrodes, they have attracted attention as economical light sources, and demand for them tends to increase. [0003] In addition, a bulb-shaped fluorescent lamp in which a fluorescent lamp and a lighting circuit are integrated has attracted attention as an energy-saving light source in homes, hotels, restaurants, etc., and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B41/24H05B41/28H05B41/285H05B41/392
CPCH05B41/2853H05B41/3927H05B41/2806Y02B20/186H05B41/24Y02B20/22Y10S315/04H05B41/3921H05B41/3924Y02B20/00
Inventor 高桥健一郎小南智宫崎光治仓地敏明松林容子竹田守
Owner PANASONIC CORP
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