CN206490867U - Illumination driving circuit - Google Patents
Illumination driving circuit Download PDFInfo
- Publication number
- CN206490867U CN206490867U CN201720122328.XU CN201720122328U CN206490867U CN 206490867 U CN206490867 U CN 206490867U CN 201720122328 U CN201720122328 U CN 201720122328U CN 206490867 U CN206490867 U CN 206490867U
- Authority
- CN
- China
- Prior art keywords
- resistance
- triode
- illuminating lamp
- driving circuit
- illumination driving
- 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.)
- Withdrawn - After Issue
Links
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The utility model discloses a kind of illumination driving circuit, including single-chip microcomputer, first triode, second triode, 3rd triode, 4th triode, first resistor is to the 8th resistance, first electric capacity, voltage-regulator diode, first illuminating lamp and the second illuminating lamp, one output port of single-chip microcomputer is connected by first resistor with the base stage of the first triode, the emitter stage of first triode passes through the 7th resistance eutral grounding, the colelctor electrode of first triode is connected with one end of second resistance and one end of 3rd resistor respectively by the first electric capacity, the other end of second resistance is connected with the base stage of the 4th triode, the emitter stage of 4th triode is connected with the other end of 3rd resistor and one end of the 8th resistance respectively, the other end connection power supply of 8th resistance, the one end of the colelctor electrode of 4th triode respectively with the 4th resistance, one end of first illuminating lamp and the connection of one end of the second illuminating lamp.The utility model is avoided that generation potential safety hazard, using safer.
Description
Technical field
The utility model is related to lighting field, more particularly to a kind of illumination driving circuit.
Background technology
Existing domestic electric appliance can design illumination driving circuit mostly, then one stability of design is good, reliability is high
And the illumination driving circuit for the power saving that saves money just is particularly important.General illumination driving circuit uses constant voltage power supply circuit.
General illumination driving circuit works at relatively high temperatures always, this can cause the application reliability of illumination driving circuit to reduce,
A series of problems, such as service life shortens, therefore emphasis consideration of having to of radiating；Reliability and safety are to be easy to be neglected intentionally
Part slightly, especially before relevant regulations are enforced, in order to reduce cost, partial illumination manufacturer can omit reliability and peace
Circuit in terms of rule, that is, existing illumination driving circuit lack circuit protection function, and it is using having a potential safety hazard.
Utility model content
The technical problems to be solved in the utility model is there is lacking for potential safety hazard for the foregoing circuit of prior art
Fall into and be avoided that generation potential safety hazard, using safer illumination driving circuit there is provided a kind of.
The utility model solves the technical scheme that its technical problem used：A kind of illumination driving circuit is constructed, including
Single-chip microcomputer, the first triode, the second triode, the 3rd triode, the 4th triode, first resistor, second resistance, the 3rd electricity
Resistance, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance, the first electric capacity, voltage-regulator diode, the first illumination
Lamp and the second illuminating lamp, an output port of the single-chip microcomputer pass through the first resistor and the base stage of first triode
Connection, the emitter stage of first triode is by the 7th resistance eutral grounding, and the colelctor electrode of first triode passes through institute
The first electric capacity is stated to be connected with one end of the second resistance and one end of 3rd resistor respectively, the other end of the second resistance with
The base stage connection of 4th triode, the emitter stage of the 4th triode respectively with the other end of the 3rd resistor and the
One end connection of eight resistance, the other end connection power supply of the 8th resistance, the colelctor electrode difference of the 4th triode
Be connected with one end of one end, one end of the first illuminating lamp and the second illuminating lamp of the 4th resistance, the 4th resistance it is another
Base stage of the one end respectively with the base stage of second triode, the negative pole of voltage-regulator diode and the 3rd triode is connected, described steady
The plus earth of diode is pressed, the colelctor electrode of second triode is connected with the other end of first illuminating lamp, described the
The emitter stage of two triodes passes through the 5th resistance eutral grounding, colelctor electrode and second illuminating lamp of the 3rd triode
The other end is connected, and the emitter stage of the 3rd triode passes through the 6th resistance eutral grounding.
In illumination driving circuit described in the utility model, in addition to the 9th resistance and the second electric capacity, the described 4th 3
The colelctor electrode of pole pipe passes sequentially through the 9th resistance and the second electric capacity is connected with one end of the 4th resistance.
In illumination driving circuit described in the utility model, in addition to the tenth resistance, one end of the tenth resistance with
The base stage connection of second triode, the other end of the tenth resistance is connected with the base stage of the 3rd triode.
In illumination driving circuit described in the utility model, in addition to the 3rd electric capacity, the other end of the tenth resistance
It is connected by the 3rd electric capacity with the base stage of the 3rd triode.
In illumination driving circuit described in the utility model, in addition to the 11st resistance, the collection of second triode
Electrode is connected by the 11st resistance with the other end of first illuminating lamp.
In illumination driving circuit described in the utility model, in addition to the 12nd resistance, the collection of the 3rd triode
Electrode is connected by the 12nd resistance with the other end of second illuminating lamp.
In illumination driving circuit described in the utility model, the voltage stabilizing value of the voltage-regulator diode is 3.3V.
Implement illumination driving circuit of the present utility model, have the advantages that：Due to provided with single-chip microcomputer, the one or three pole
Pipe, the second triode, the 3rd triode, the 4th triode, first resistor, second resistance, 3rd resistor, the 4th resistance, the 5th
Resistance, the 6th resistance, the 7th resistance, the 8th resistance, the first electric capacity, voltage-regulator diode, the first illuminating lamp and the second illuminating lamp, the
Seven resistance and the 8th resistance are used to carry out overcurrent protection, and the first electric capacity is used to prevent between the first triode and the 4th triode
Interference, therefore it is avoided that generation potential safety hazard, using safer.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the accompanying drawing used required in description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, before creative labor is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the circuit theory diagrams in the utility model illumination driving circuit one embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belongs to the scope of the utility model protection.
In the utility model illumination driving circuit embodiment, structural representation such as Fig. 1 institutes of the illumination driving circuit
Show.In Fig. 1, the illumination driving circuit includes single-chip microcomputer, the first triode Q1, the second triode Q2, the 3rd triode Q3, the 4th
Triode Q4, first resistor R1, second resistance R2,3rd resistor R3, the 4th resistance R4, the 5th resistance R5, the 6th resistance R6,
Seven resistance R7, the 8th resistance R8, the first electric capacity C1, voltage-regulator diode DW1, the first illuminating lamp LAMP1 and the second illuminating lamp
LAMP2, wherein, an output port PORT1 of single-chip microcomputer is connected by first resistor R1 with the first triode Q1 base stage, the
One triode Q1 emitter stage is grounded by the 7th resistance R7.
First triode Q1 colelctor electrode passes through the first electric capacity C1 one end respectively with second resistance R2 and 3rd resistor R3
One end connection, the second resistance R2 other end is connected with the 4th triode Q4 base stage, and the 4th triode Q4 emitter stage divides
It is not connected with the 3rd resistor R3 other end and the 8th resistance R8 one end, the 8th resistance R8 other end connection power supply
One end, the first illuminating lamp LAMP1 one end and second of VCC, the 4th triode Q4 colelctor electrode respectively with the 4th resistance R4 are shone
Bright lamp LAMP2 one end connection, the 4th resistance R4 other end base stage respectively with the second triode Q2, voltage-regulator diode DW1
Negative pole and the 3rd triode Q3 base stage connection, voltage-regulator diode DW1 plus earth, the second triode Q3 colelctor electrode with
First illuminating lamp LAMP1 other end connection, the second triode Q2 emitter stage is grounded by the 5th resistance R5, the 3rd triode
Q3 colelctor electrode is connected with the second illuminating lamp LAMP2 other end, and the 3rd triode Q3 emitter stage is connect by the 6th resistance R6
Ground.In the present embodiment, voltage-regulator diode DW1 voltage stabilizing value is 3.3V.Certainly, under the certain situation of the present embodiment, also may be used
To select the voltage-regulator diode of different voltage stabilizing values as the case may be.
Wherein, the 7th resistance R7 and the 8th resistance R8 is current-limiting resistance, and the 7th resistance R7 is used for the first triode Q1
Emitter stage where branch road carry out overcurrent protection, the 8th resistance R8 be used for the branch road where the emitter stage of the 4th triode is entered
Row overcurrent protection, the first electric capacity C1 is coupled capacitor, for preventing the interference between the first triode Q1 and the 4th triode Q4,
Which improves the security of circuit, therefore it is avoided that generation potential safety hazard, using safer.
In the present embodiment, the illumination driving circuit also includes the 9th resistance R9 and the second electric capacity C2, the 4th triode Q4's
Colelctor electrode passes sequentially through the 9th resistance R9 and the second electric capacity C2 is connected with the 4th resistance R4 one end.Wherein, the 9th resistance R9 is
Current-limiting resistance, overcurrent protection is carried out for the branch road where the colelctor electrode to the 4th triode Q4, and the second electric capacity C2 is coupling electricity
Hold, for preventing the interference between the second triode Q2 and the 4th triode Q3, thus further improve the security of circuit
Energy.
In the present embodiment, the illumination driving circuit also includes the tenth resistance R10, the tenth resistance R10 one end and the two or three
Pole pipe Q2 base stage connection, the tenth resistance R10 other end is connected with the 3rd triode Q3 base stage.Tenth resistance R10 is limited
Leakage resistance, for carrying out overcurrent protection to the branch road between the second triode Q2 and the 3rd triode Q3, it is possible to further
Improve the security performance of circuit.
In the present embodiment, the illumination driving circuit also includes the 3rd electric capacity C3, and the tenth resistance R10 other end passes through the 3rd
Electric capacity C3 is connected with the 3rd triode Q3 base stage.3rd electric capacity C3 is coupled capacitor, for preventing the second triode Q2 and the
Interference between three triode Q3.
When the output port PORT1 of single-chip microcomputer exports high level, the first triode Q1 conductings, power supply VCC passes through
Second resistance R2 and 3rd resistor R3 provide base current for the 4th triode Q4 so that the 4th triode Q4 is turned on, wherein one
Bar branch road is connected with the first illuminating lamp LAMP1 one end and the second illuminating lamp LAMP2 one end, and now the first illuminating lamp
The current potential of LAMP1 one end and the second illuminating lamp LAMP2 one end is identical with power supply VCC；Another article branch road passes through the 4th
Resistance R4, the tenth resistance R10 and voltage-regulator diode DW1 are that the second triode Q2 and the 3rd triode Q3 provide base stage electric conduction
Pressure.After the second triode Q2 and the 3rd triode Q3 is turned on, due to the 5th resistance R5 and the 6th resistance R6 presence, so that just
It is respectively present emitter current Ie1 and Ie2；When the 5th resistance R5 and the 6th resistance R6 timing of resistance one, the second triode Q2
Just stablize in some value with the 3rd triode Q3 emitter current, the stabilization of emitter current value, it is possible to so that colelctor electrode
The stabilization of current value, so flows through the first illuminating lamp LAMP1 one end and the second illuminating lamp LAMP2 electric current is just more stable.
In the present embodiment, the illumination driving circuit also includes the 11st resistance R11, and the second triode Q2 colelctor electrode passes through
11st resistance R11 is connected with the first illuminating lamp LAMP1 other end.11st resistance R11 is current-limiting resistance, for the
Branch road between one illuminating lamp LAMP1 and the second triode Q2 colelctor electrode carries out overcurrent protection.
In the present embodiment, the illumination driving circuit also includes the 12nd resistance R12, and the 3rd triode Q3 colelctor electrode passes through
12nd resistance R12 is connected with the second illuminating lamp LAMP2 other end.12nd resistance R12 is current-limiting resistance, for the
Branch road between two illuminating lamp LAMP2 and the 3rd triode Q3 colelctor electrode carries out overcurrent protection.
It is noted that in the present embodiment, the first triode Q1, the second triode Q2 and the 3rd triode Q3 are NPN
Type triode, the 4th triode Q4 is PNP type triode, certainly, under the certain situation of the present embodiment, the first triode Q1,
Second triode Q2 and the 3rd triode Q3 can be PNP type triodes, and the 4th triode Q4 can also be NPN type triode,
But at this moment the structure of circuit also will accordingly change.
In a word, due to provided with current-limiting resistance and coupled capacitor, overcurrent protection can be carried out, it can prevent again between triode
Interference, so it is avoided that generation potential safety hazard, using safer.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc. should be included in the utility model
Protection domain within.
Claims (7)
1. a kind of illumination driving circuit, it is characterised in that including single-chip microcomputer, the first triode, the second triode, the three or three pole
Pipe, the 4th triode, first resistor, second resistance, 3rd resistor, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance,
8th resistance, the first electric capacity, voltage-regulator diode, the first illuminating lamp and the second illuminating lamp, an output port of the single-chip microcomputer
It is connected by the first resistor with the base stage of first triode, the emitter stage of first triode passes through the described 7th
Resistance eutral grounding, the colelctor electrode of first triode by first electric capacity respectively with one end of the second resistance and the 3rd
One end connection of resistance, the other end of the second resistance is connected with the base stage of the 4th triode, the 4th triode
Emitter stage be connected respectively with the other end of the 3rd resistor and one end of the 8th resistance, the other end of the 8th resistance connects
Connect power supply, the colelctor electrode of the 4th triode respectively with one end of the 4th resistance, one end of the first illuminating lamp and
One end connection of second illuminating lamp, the other end of the 4th resistance base stage respectively with second triode, the pole of voltage stabilizing two
The base stage connection of the negative pole of pipe and the 3rd triode, the plus earth of the voltage-regulator diode, the current collection of second triode
Pole is connected with the other end of first illuminating lamp, and the emitter stage of second triode passes through the 5th resistance eutral grounding, institute
The colelctor electrode for stating the 3rd triode is connected with the other end of second illuminating lamp, and the emitter stage of the 3rd triode passes through institute
State the 6th resistance eutral grounding.
2. illumination driving circuit according to claim 1, it is characterised in that also including the 9th resistance and the second electric capacity, institute
The colelctor electrode for stating the 4th triode passes sequentially through the 9th resistance and the second electric capacity is connected with one end of the 4th resistance.
3. illumination driving circuit according to claim 2, it is characterised in that also including the tenth resistance, the tenth resistance
One end be connected with the base stage of second triode, the base stage of the other end of the tenth resistance and the 3rd triode connects
Connect.
4. illumination driving circuit according to claim 3, it is characterised in that also including the 3rd electric capacity, the tenth resistance
The other end be connected by the 3rd electric capacity with the base stage of the 3rd triode.
5. the illumination driving circuit according to Claims 1-4 any one, it is characterised in that also including the 11st resistance,
The colelctor electrode of second triode is connected by the 11st resistance with the other end of first illuminating lamp.
6. the illumination driving circuit according to Claims 1-4 any one, it is characterised in that also including the 12nd resistance,
The colelctor electrode of 3rd triode is connected by the 12nd resistance with the other end of second illuminating lamp.
7. the illumination driving circuit according to Claims 1-4 any one, it is characterised in that the voltage-regulator diode
Voltage stabilizing value is 3.3V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720122328.XU CN206490867U (en) | 2017-02-09 | 2017-02-09 | Illumination driving circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720122328.XU CN206490867U (en) | 2017-02-09 | 2017-02-09 | Illumination driving circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206490867U true CN206490867U (en) | 2017-09-12 |
Family
ID=59765239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720122328.XU Withdrawn - After Issue CN206490867U (en) | 2017-02-09 | 2017-02-09 | Illumination driving circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206490867U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106714387A (en) * | 2017-02-09 | 2017-05-24 | 中山自信照明科技有限公司 | Illumination driving circuit |
-
2017
- 2017-02-09 CN CN201720122328.XU patent/CN206490867U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106714387A (en) * | 2017-02-09 | 2017-05-24 | 中山自信照明科技有限公司 | Illumination driving circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102711310A (en) | Light-emitting diode (LED) drive circuit and lamp | |
| CN206490867U (en) | Illumination driving circuit | |
| CN205647251U (en) | Novel overvoltage crowbar | |
| CN106804073A (en) | One kind automatically adjusts server indicator lamp brightness device | |
| CN205196015U (en) | Drive power supply protection device , lamps and lanterns | |
| CN105140997A (en) | Intelligent lamp charger of intelligent traffic system | |
| CN207531122U (en) | A kind of LED fishing lamps power supply output switching circuit | |
| CN203645890U (en) | LED power supply circuit capable of being compatible with traditional fluorescent lamp ballast | |
| CN106714387A (en) | Illumination driving circuit | |
| CN205320335U (en) | Compatible ballast's LED power | |
| CN205336586U (en) | Lighting circuit and remote controller | |
| CN205430671U (en) | Integrative lamp of solar energy LED and control system | |
| CN202095159U (en) | Constant current driving circuit | |
| CN104105245B (en) | A kind of LED Drive Protecting Circuits | |
| CN203554729U (en) | LED drive light modulation circuit | |
| CN206490864U (en) | LED illumination circuit | |
| CN206490881U (en) | Light switch circuit | |
| CN104869723A (en) | Hybrid energy-saving grid drive system based on gate drive | |
| CN204613341U (en) | A kind of testing circuit for voice-frequency cable | |
| CN204795761U (en) | Solar street lamp control circuit | |
| CN208724239U (en) | LED drive power control circuit | |
| CN220673381U (en) | NTC control circuit of projector | |
| CN208798188U (en) | A kind of low-power consumption telephone jack circuit | |
| CN102855860B (en) | LED (light-emitting diode) drive circuit and liquid crystal display | |
| CN207835870U (en) | A kind of double-colored gradual change LED light |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170912 Effective date of abandoning: 20180824 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20170912 Effective date of abandoning: 20180824 |