CN2230466Y - Light-emitting diode indicator capable of directly being used to a.c. electricity - Google Patents
Light-emitting diode indicator capable of directly being used to a.c. electricity Download PDFInfo
- Publication number
- CN2230466Y CN2230466Y CN 95211061 CN95211061U CN2230466Y CN 2230466 Y CN2230466 Y CN 2230466Y CN 95211061 CN95211061 CN 95211061 CN 95211061 U CN95211061 U CN 95211061U CN 2230466 Y CN2230466 Y CN 2230466Y
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- CN
- China
- Prior art keywords
- emitting diode
- light emitting
- utility
- model
- alternating current
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a light emitting diode display used for an alternating current power supply with 220V or 110V. A voltage reduction capacitor and a current-limiting resistor are connected in series between the light emitting diode display and the alternating current power supply. The voltage reduction capacitor is connected in parallel with a discharge resistor. The utility model adopts the capacitor to lower voltage, no power is consumed, and no heat is generated. Simultaneously, the power factor of an electric network is improved, and energy is saved. The utility model has the advantages of small volume, simple circuits, and electricity saving. The luminous efficiency of a light emitting diode can be utilized up to the hilt. The utility model can be used for various low voltage illuminating lamps, ornamental lamps, indication of a traffic sign, a floor number, a block number, etc.
Description
The design belongs to 220 volts of a kind of direct usefulness or 110 volts of light emitting diode indicators that alternating current is a power supply.
It all is with transformer alternating current to be reduced to required voltage that present light emitting diode is used in AC power, and its volume and loss are very big; Or directly be serially connected on the AC power with resistance, with resistance step-down (Chinese patent CN 2086453U), the power consumption of resistance itself is far longer than the power consumption of light emitting diode, light emitting diode can only be lower than normal current, weak brightness work down, otherwise resistance produces high heat, and use is restricted.
The design's purpose provides and a kind ofly adopts 220 volts or 110 volts of AC power and without the light emitting diode indicator of transformer step-down, its power consumption, and volume is all smaller and reliability is high.
To achieve these goals, the design has adopted following technology:
Connect between light emitting diode indicator and the AC power decompression capacitor and current-limiting resistance, discharge resistance in parallel on decompression capacitor.
The design does not generate heat owing to adopt capacitance decompression itself not consume meritorious power consumption, can improve the power factor of electrical network simultaneously, reaches energy-saving effect.
Below in conjunction with drawings and Examples the design is described in detail.
Fig. 1 is the design's a synoptic diagram, (1) one light emitting diode indicator among the figure; (2) one decompression capacitors; (3) one current-limiting resistances; (4) one discharge resistances.
The used light emitting diode of display can bi-directional arrangement, and its quantity is from 2 to 200; Also can unidirectional array, its quantity is from 1 to 100 (as shown in Figure 2).Present embodiment rearranges a square escope by 64 light emitting diodes by 8 * 8 by bi-directional arrangement, and the numerical value of decompression capacitor, leakage resistance and discharge resistance is respectively: 1 μ F, 1.1M Ω and 800K Ω.The effect of discharge resistance is when outage the voltage on the decompression capacitor to be drained, in order to avoid burn light emitting diode.
The design's volume is little, circuit is simple, power saving, can maximally utilise the luminescence efficiency of light emitting diode.Can be used for aspects such as the indication of various low lightings, decorative lamp, traffic sign and floor, generic term for a building, e. g. Apartment, store, a movie theater, etc. demonstration.
Claims (1)
1. light emitting diode indicator that is directly used in alternating current, can form with several to hundreds of light emitting diodes, it is characterized in that connect between light emitting diode indicator and the AC power decompression capacitor and current-limiting resistance, discharge resistance in parallel on decompression capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95211061 CN2230466Y (en) | 1995-05-10 | 1995-05-10 | Light-emitting diode indicator capable of directly being used to a.c. electricity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95211061 CN2230466Y (en) | 1995-05-10 | 1995-05-10 | Light-emitting diode indicator capable of directly being used to a.c. electricity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2230466Y true CN2230466Y (en) | 1996-07-03 |
Family
ID=33861626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95211061 Expired - Fee Related CN2230466Y (en) | 1995-05-10 | 1995-05-10 | Light-emitting diode indicator capable of directly being used to a.c. electricity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2230466Y (en) |
-
1995
- 1995-05-10 CN CN 95211061 patent/CN2230466Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |