CN2476073Y - Luminous diode display directly using for AC - Google Patents
Luminous diode display directly using for AC Download PDFInfo
- Publication number
- CN2476073Y CN2476073Y CN 00266565 CN00266565U CN2476073Y CN 2476073 Y CN2476073 Y CN 2476073Y CN 00266565 CN00266565 CN 00266565 CN 00266565 U CN00266565 U CN 00266565U CN 2476073 Y CN2476073 Y CN 2476073Y
- Authority
- CN
- China
- Prior art keywords
- light emitting
- emitting diode
- diode display
- alternating current
- utility
- 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 relates to a light emitting diode display used directly in alternating current and pertains to a light emitting diode display directly using alternating current of 220v or 110v as the power supply. The light emitting diode display4 and the alternating power supply are connected in series with a dropping capacitance1 and a biphase rectifier3 while the dropping capacitance is connected in parallel with a discharge resistance2. The utility model has advantages of small volume, simple circuit, no heat emission, safe use and no damage to the light emitting diode because of the drive of direct current.
Description
The utility model relates to 220 volts of a kind of direct usefulness or 110 volts of light emitting diode indicators that alternating current is a power supply.
Light emitting diode uses under the interchange situation at present, and majority is with transformer alternating current to be dropped to required voltage, and shortcoming is: its volume and loss are very big; Or with resistance current limliting (seeing Chinese patent ZL95211061.X), do not generate heat though shortcoming is an electric capacity itself, current-limiting resistance uses for a long time and produces high heat, very easily ignite electric capacity, use very dangerously,, there is very big infringement in life-span of light emitting diode simultaneously with exchanging direct driven for emitting lights diode.The purpose of this utility model is to provide a kind of light emitting diode indicator that is directly used in alternating current, to overcome the shortcoming of above-mentioned prior art, even its volume is little, does not generate heat, and simultaneously owing to use the direct drive light emitting diode, and it is not had any infringement.
For achieving the above object, the technical scheme that the utility model is taked is: connect between light emitting diode indicator 4 and the AC power decompression capacitor 1 and a full wave rectifier 3, discharge resistance 2 in parallel on decompression capacitor.
Advantage of the present utility model is: volume is little, circuit simply, do not generate heat, safe in utilization, simultaneously owing to use the direct drive light emitting diode, and it is not had any infringement.
Below in conjunction with the drawings and the specific embodiments the utility model is described in further detail.
Fig. 1, the utility model synoptic diagram;
Embodiment:
Connect between light emitting diode indicator 4 and the AC power decompression capacitor 1 and a rectifier bridge 3 of forming by four commutation diodes, discharge resistance 2 in parallel on decompression capacitor.
Claims (2)
1, a kind of light emitting diode indicator that is directly used in alternating current is characterized in that: connect between light emitting diode indicator 4 and the AC power decompression capacitor 1 and a full wave rectifier 3, discharge resistance 2 in parallel on decompression capacitor.
2, the light emitting diode indicator that is directly used in alternating current according to claim 1 is characterized in that: the rectifier bridge of full wave rectifier 3 for being made up of four commutation diodes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00266565 CN2476073Y (en) | 2000-12-21 | 2000-12-21 | Luminous diode display directly using for AC |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00266565 CN2476073Y (en) | 2000-12-21 | 2000-12-21 | Luminous diode display directly using for AC |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2476073Y true CN2476073Y (en) | 2002-02-06 |
Family
ID=33620614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00266565 Expired - Fee Related CN2476073Y (en) | 2000-12-21 | 2000-12-21 | Luminous diode display directly using for AC |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2476073Y (en) |
-
2000
- 2000-12-21 CN CN 00266565 patent/CN2476073Y/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 |