CN2659079Y - LED circuit device - Google Patents
LED circuit device Download PDFInfo
- Publication number
- CN2659079Y CN2659079Y CN 200320101447 CN200320101447U CN2659079Y CN 2659079 Y CN2659079 Y CN 2659079Y CN 200320101447 CN200320101447 CN 200320101447 CN 200320101447 U CN200320101447 U CN 200320101447U CN 2659079 Y CN2659079 Y CN 2659079Y
- Authority
- CN
- China
- Prior art keywords
- power supply
- led
- output
- current
- input
- 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
Links
Images
Landscapes
- Led Devices (AREA)
Abstract
The utility model is a LED circuit device, which comprises: at least a LED that connected with the output of a power supply; a power supply comprising: two power input of A and B; a current-limiting resistance, one end is connected with an input of the power supply (B) while the other end is connected with one output of the power supply; a voltage-reduction diode, one end is connected with the input of the power supply (A) while the other end is connected with a voltage stabilizing diode; and a voltage stabilizing diode connected in series between the input of power supply (A) and the other output of the power supply.
Description
Technical field
The utility model relates to a kind of led circuit device, and particularly a kind of voltage for LED reduces and the device of aspiring for stability.
Background technology
Light-emitting diode (LED calls LED in the following text) because it is little to have a volume, bulb do not have filament and save electric power, be difficult for heating, the life-span is long, light is average, distinct reason such as clear.The existing maturation condition that replaces the traditional lighting light source.In addition, LED and not only in the lighting product, development technique, the design of LED power drives and led module design of itself light source body or the like also has tremendous development.
Because the required electric power of LED is less, therefore the voltage in the circuit must be controlled proper, and can not be too higher, because it mainly is that the accurate position of the output direct current of power supply unit is kept definite value, and its output instability mainly is 1, the instability of originating of alternating current supply itself.2, the resistance of supply own causes output to change with load variations.
See also Fig. 1, the LED1 of traditional type is during by forward current at circuit characteristic, diode that can be luminous.General LED, the current range that is allowed is set between a scope mostly.In circuit, usually the LED1 current-limiting resistance 11 of must connecting, principle based on V (voltage)=I (electric current) * R (resistance), to limit excessive electric current, cooperate transformer 12 simultaneously, the alternating current of power supply unit 10 is converted to direct current, and and then cooperate diode 13, in order to reduction voltage, and the energy burning voltage, in the hope of reaching so-called " antihypertensive effect ".Using on volume and the conformability, can't make that production cost is higher and efficient is not good in response to the microminiaturization and the circuit integration of the whole group of LED1 circuit unit.
See also Fig. 2, the LED2 of electronic type, its characteristic in circuit is during by forward current equally, diode that can be luminous; In circuit, also necessary series connection one current-limiting resistance 21, based on V (voltage)=I (electric current) * R (resistance), to limit excessive current capacity, cooperate transformer 22 simultaneously, the alternating current of power supply unit 20 is converted to direct current, and cooperates transistor (MOSFET) 23,24, to reduce and burning voltage.Its problem is removed and to be to use on integrated and the conformability, can't be in response to the microminiaturization and the circuit integration of LED2 volume.Owing to transistor (MOSFET) 23,24, hot easily and consume makes that production cost is higher and efficient is not good so unsatisfactory simultaneously.
Summary of the invention
The purpose of this utility model provides a kind of led circuit device.By with voltage stabilizing didoe substitute electric power transformer, so the utility model can reduce production costs, and can dwindle small product size.
Above-mentioned purpose of the present utility model is achieved in that a kind of led circuit device, it is characterized in that comprising: at least one LED is connected on the output of power supply unit; A power supply unit comprises: A, B two power inputs; One current-limiting resistance, the one end connects the B-source input, and its other end is an output of power supply unit; A buck diode, the one end connects the a-power supply input, and the other end connects voltage stabilizing didoe; And a voltage stabilizing didoe, be serially connected between another output of a-power supply input and power supply unit.
The utility model is elaborated with instantiation below in conjunction with accompanying drawing.
Description of drawings
Fig. 1 is the led circuit figure of one of prior art;
Fig. 2 is two led circuit figure of prior art;
Fig. 3 is the utility model LED stereogram;
Fig. 4 is the utility model led circuit figure.
Description of reference numerals: 1-LED; 10 power supply units; 11 current-limiting resistances; 12 transformers; 13 diodes; 2LED; 20 power supply units; 21 current-limiting resistances; 22 transformers; 23 transistors; 24 transistors; The 3-LED circuit arrangement; 30LED; 31 power supply units; The 31A-A power input; The 31B-B power input; 32 current-limiting resistances; The 33A diode; The 33B diode; 34 voltage stabilizing didoes.
Embodiment
See also Fig. 3 and cooperate Fig. 4, the utility model is a kind of led circuit device 3, mainly comprises:
At least one LED30 is located on the output of power supply unit (31);
One power supply unit 31 will become direct current from the AC rectification of transformer, then through Filtering Processing, make that direct current is handled more smoothly, noise still less.
This power supply unit 31 comprises: A, B two power input 31A, 31B; One current-limiting resistance 32 connects B-source input 31B, because V=I * R principle, electric current is constant down, and is relatively low via the formed voltage dividing potential drop of resistance, forms the deboost effect; Diode 33A uses reduction voltage; One voltage stabilizing didoe 34, serial connection a-power supply input 31A replaces transformer, can change alternating current into direct current.When voltage surpasses setting voltage, this diode can produce build synergy should (Avalanche Effect) and conducting.
And the utility model can also silicon (SILICON) be a diode, and forming preferable silicon base synergy should.The effect of this reduction voltage, though also can reach by transformer and transistor, transformer and transistor step-down use transformer and transistor are the output crystal, and the reduction voltage of voltage stabilizing didoe, adopting diode is the output crystal.And transistor stabilized making is to use two differential crystal to serve as error correction, the reduction voltage of voltage stabilizing didoe is the complicated simplification formation circuit integration with crystal, therefore with regard to its otherness, mainly be to simplify volume and can reduce cost and reach the efficient of effect same in constructional concrete simplification and utilization.
In the use of the utility model device for LED, can to reduce production costs, have more the efficiency of device by volume microminiaturization and circuit integration.
Above-mentioned described be the utility model one preferred embodiment, all equalizations of being done according to the utility model claim change, and all belong to protection range of the present utility model.
Claims (2)
1, a kind of led circuit device is characterized in that comprising:
A power supply unit (31) comprising:
A, B two power inputs (31A, 31B);
One current-limiting resistance (32), the one end connects B-source input (31B), and its other end is an output of power supply unit;
A buck diode (33A), the one end connects the a-power supply input, and the other end connects voltage stabilizing didoe (34); And
One voltage stabilizing didoe (34) is serially connected between another output (A) of a-power supply input (31A) and power supply unit; With
At least one LED (30) is connected on the output of power supply unit.
2, led circuit device as claimed in claim 1, wherein: voltage stabilizing didoe (34) is silicon (SILICON) diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320101447 CN2659079Y (en) | 2003-10-20 | 2003-10-20 | LED circuit device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320101447 CN2659079Y (en) | 2003-10-20 | 2003-10-20 | LED circuit device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2659079Y true CN2659079Y (en) | 2004-11-24 |
Family
ID=34339655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320101447 Expired - Fee Related CN2659079Y (en) | 2003-10-20 | 2003-10-20 | LED circuit device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2659079Y (en) |
-
2003
- 2003-10-20 CN CN 200320101447 patent/CN2659079Y/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Yu et al. | The topologies of white LED lamps' power drivers | |
| KR101174101B1 (en) | Led module for high efficiency ac driving | |
| CN102685978B (en) | Illumination apparatus | |
| CN102917499B (en) | DC (Direct Current)/DC-based LED (Light Emitting Diode) driving controller for lighting | |
| CN104206019A (en) | Lamp comprising high-efficiency light devices | |
| CN103843461B (en) | For the drive circuit of Solid-state light bulb assembly | |
| CN1535098B (en) | Illuminator | |
| CN204598411U (en) | A kind of LED drove temperature drop current circuit | |
| CN106954293B (en) | The efficient actinic LED drive circuit of thyristor regulating | |
| CN101076213A (en) | LED illuminating light and its controlling circuit | |
| CN206077767U (en) | A kind of actinic LED drive circuit of new thyristor regulating | |
| WO2012028088A1 (en) | Method and apparatus for led lighting | |
| CN102510605A (en) | Novel LED (light emitting diode) driving circuit | |
| CN2624578Y (en) | AC-DC dual-purpose LED lamp | |
| CN2659079Y (en) | LED circuit device | |
| CN104837276B (en) | The LED wireless control systems and control method of a kind of compatible phase-cut dimming | |
| CN106954297A (en) | A kind of actinic LED drive circuit of the thyristor regulating of novel efficient | |
| CN104936330B (en) | LED driving power supply and LED lighting device comprising same | |
| CN202634833U (en) | Diming circuit for light-emitting diode (LED) lamp | |
| CN201657388U (en) | Constant-current chip packaging body and luminous diode lamp driven by alternating current | |
| CN205681662U (en) | The actinic LED drive circuit of thyristor regulating | |
| CN1722927A (en) | An LED illuminating circuit | |
| CN2757488Y (en) | Light emitting diode lighting circuit | |
| CN2657203Y (en) | Luminous diode packaging device with rectification circuit | |
| CN207354672U (en) | A kind of LED power circuit of wireless control |
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 |