POWER SUPPLY CIRCUIT AND LIGHT EMISSION APPARATUS
This invention relates to a power supply circuit for rectifying an AC power and supplying the rectified power to a load and also relates to a light emission apparatus for causing a light emitting diode to emit light, wherein the use of any capacitors having large capacitances is avoided, while the s...
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Format | Patent |
Language | English French Japanese |
Published |
10.03.2011
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Abstract | This invention relates to a power supply circuit for rectifying an AC power and supplying the rectified power to a load and also relates to a light emission apparatus for causing a light emitting diode to emit light, wherein the use of any capacitors having large capacitances is avoided, while the supply of the power to the load can be prevented from being interrupted. There are included: a rectifier circuit for converting an AC power to a pulse wave power; a capacitor; a charging circuit for charging the capacitor; and a combining circuit that is operative to cause the capacitor to discharge the power, charged therein, when a pulse wave power output by the rectifier circuit is equal to or less than a first threshold voltage, and that is further operative to combine the discharged power with the output pulse wave power.
La présente invention concerne un circuit d'alimentation électrique pour redresser une alimentation CA et pour fournir l'alimentation redressée à une charge. La présente invention concerne également un appareil luminescent pour forcer une diode électroluminescente à émettre de la lumière, l'utilisation de condensateurs, qui possèdent des capacités importantes, et l'interruption de l'alimentation électrique vers la charge étant évitées. La présente invention inclut : un circuit redresseur pour convertir une alimentation CA en alimentation à onde pulsée ; un condensateur ; un circuit de charge pour charger le condensateur ; et un circuit mélangeur qui fonctionne pour faire en sorte que le condensateur décharge l'alimentation avec laquelle il est chargée, lorsqu'une alimentation à onde pulsée fournie par le circuit redresseur est inférieure ou égale à une première tension de seuil, et qui fonctionne en outre pour associer l'alimentation déchargée à l'alimentation à onde pulsée de sortie. |
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AbstractList | This invention relates to a power supply circuit for rectifying an AC power and supplying the rectified power to a load and also relates to a light emission apparatus for causing a light emitting diode to emit light, wherein the use of any capacitors having large capacitances is avoided, while the supply of the power to the load can be prevented from being interrupted. There are included: a rectifier circuit for converting an AC power to a pulse wave power; a capacitor; a charging circuit for charging the capacitor; and a combining circuit that is operative to cause the capacitor to discharge the power, charged therein, when a pulse wave power output by the rectifier circuit is equal to or less than a first threshold voltage, and that is further operative to combine the discharged power with the output pulse wave power.
La présente invention concerne un circuit d'alimentation électrique pour redresser une alimentation CA et pour fournir l'alimentation redressée à une charge. La présente invention concerne également un appareil luminescent pour forcer une diode électroluminescente à émettre de la lumière, l'utilisation de condensateurs, qui possèdent des capacités importantes, et l'interruption de l'alimentation électrique vers la charge étant évitées. La présente invention inclut : un circuit redresseur pour convertir une alimentation CA en alimentation à onde pulsée ; un condensateur ; un circuit de charge pour charger le condensateur ; et un circuit mélangeur qui fonctionne pour faire en sorte que le condensateur décharge l'alimentation avec laquelle il est chargée, lorsqu'une alimentation à onde pulsée fournie par le circuit redresseur est inférieure ou égale à une première tension de seuil, et qui fonctionne en outre pour associer l'alimentation déchargée à l'alimentation à onde pulsée de sortie. |
Author | TAMURA, YOSHIO KATOU, YUKIHISA MATSUMURA, TSUTOMU USAMI, TAMOTSU |
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DocumentTitleAlternate | CIRCUIT D'ALIMENTATION ÉLECTRIQUE ET APPAREIL LUMINESCENT |
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RelatedCompanies | TAMURA, YOSHIO KATOU, YUKIHISA MATSUMURA, TSUTOMU USAMI, TAMOTSU KAGA COMPONENTS CO., LTD |
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Snippet | This invention relates to a power supply circuit for rectifying an AC power and supplying the rectified power to a load and also relates to a light emission... |
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SubjectTerms | APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS BASIC ELECTRIC ELEMENTS CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRIC HEATING ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY GENERATION SEMICONDUCTOR DEVICES |
Title | POWER SUPPLY CIRCUIT AND LIGHT EMISSION APPARATUS |
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