CN206713108U - The gradually dark gradually bright processing unit of LED constant current circuit based on indoor lamp gate shelves - Google Patents
The gradually dark gradually bright processing unit of LED constant current circuit based on indoor lamp gate shelves Download PDFInfo
- Publication number
- CN206713108U CN206713108U CN201720230250.3U CN201720230250U CN206713108U CN 206713108 U CN206713108 U CN 206713108U CN 201720230250 U CN201720230250 U CN 201720230250U CN 206713108 U CN206713108 U CN 206713108U
- Authority
- CN
- China
- Prior art keywords
- resistance
- indoor lamp
- gate
- gradually
- circuit
- 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.)
- Active
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
Abstract
A kind of gradually dark gradually bright processing unit of the LED constant current circuit based on indoor lamp gate shelves is the utility model is related to, it includes input protection circuit, constant-current control circuit, indoor lamp LED and gate input voltage process circuit；Input protection circuit is used for the interference for handling indoor lamp power level, and the stable level after processing is supplied into constant-current control circuit；Constant-current control circuit with constant current driving to indoor lamp LED is gradually bright, gradually dark for lighting power supply；Indoor lamp LED is used for in-car reading lamp function；Gate input voltage process circuit to be used to handle gate level, the gate Automatic level control after processing controls indoor lamp LED gradually dark at closing time in gate effect, controls indoor lamp LED gradually bright during enabling.The utility model due to using arrangement above can cause indoor lamp LED can constant current driving, and can meets gradually bright and gradually dark requirement.In view of above reason, the utility model can be widely applied to automobile room lamp technical field.
Description
Technical field
It the utility model is related to automobile room lamp technical field, more particularly to a kind of LED perseverances based on indoor lamp gate shelves
The gradually dark gradually bright processing unit of current circuit.
Background technology
In recent years, the fast development of LED technology, the advantages that by efficiency high, long lifespan, safe and environment-friendly etc., it applies model
Enclose more and more extensively, especially in automobile lamp lighting field, enjoy industry to favor.With the update of automobile, vapour is not only
The vehicle of car is more and more, and also species is various for the shape-designing of indoor lamp, because the gate control function of indoor lamp, is closing the door and is opening the door
When, it is necessary to which gradually dark and gradually bright process, which has limited indoor lamp LED type of drive, and at present on the market, most of indoor lamps are all
It is the resistance type of drive used, this is simplest linear circuit, electric current linear change with the change of voltage.But
It is well known that the driving of resistance-type, drive efficiency is not high, and during voltage pulsation, indoor lamp LED has light and shade change, and common
Constant-current circuit because electric current constant current, can not meet that indoor lamp is gradually bright, gradually dark requirement.
Utility model content
The technical problems to be solved in the utility model is：During in order to solve gate effect in the prior art, it is impossible to meet to close
It is during door gradually dark and gradually bright and common constant-current circuit drives drive efficiency during indoor lamp not high when opening the door, and voltage pulsation is asked
Topic, the utility model provide a kind of gradually dark gradually bright processing unit of the LED constant current circuit based on indoor lamp gate shelves to solve
State problem.
Technical scheme is used by the utility model solves its technical problem：A kind of LED based on indoor lamp gate shelves
The gradually dark gradually bright processing unit of constant-current circuit, it is characterised in that：It includes input protection circuit, constant-current control circuit, indoor lamp
LED and gate input voltage process circuit；Wherein, the input protection circuit input connection indoor lamp power supply, output end point
An input of the constant-current control circuit and the indoor lamp LED are not connected, the gate input voltage process circuit
Output end connects another input of the constant-current control circuit；The input protection circuit is used to handle indoor lamp power supply electricity
The interference of magnetic, and the stable level after processing is supplied to the constant-current control circuit；The constant-current control circuit is used for institute
State that indoor lamp LED is gradually bright, gradually dark lights power supply with constant current driving；The indoor lamp LED is used for in-car reading lamp function；The door
Control input voltage process circuit to be used to handle gate level, the gate Automatic level control after processing is in gate effect, shutdown time control
It is gradually dark to make the indoor lamp LED, controls the indoor lamp LED gradually bright during enabling.
The input protection circuit includes the first electric capacity, Transient Suppression Diode, first resistor and diode；Wherein, institute
State in parallel between the first electric capacity, the Transient Suppression Diode, the first resistor, the output end common ground of three, three
EMC protection circuitry is formed, the input of three connects the positive pole of the diode；The negative pole of the diode connects described respectively
The input of indoor lamp LE input and the constant-current control circuit.
The constant-current control circuit includes second resistance, 3rd resistor, the 4th resistance, the second electric capacity, voltage-regulator diode, the
Five resistance, the 3rd electric capacity, NPN triode, the 7th resistance, the 8th resistance, the 9th resistance, the tenth resistance and indoor lamp switch；Its
In, one end of the second resistance connects the negative pole of the diode, other end connection the 4th electricity of the second resistance
Resistance, the second resistance and the 4th resistant series partial pressure, the voltage-regulator diode are connected in parallel on the 4th resistance both ends；Institute
State the second electric capacity and be connected in parallel on the voltage-regulator diode both ends, second electric capacity is used to protect the voltage-regulator diode not by electromagnetism
Interference；The negative pole of the voltage-regulator diode connects one end of the 5th resistance, described in the other end connection of the 5th resistance
The base stage of NPN triode, between the base stage and ground of the 3rd electric capacity NPN triode in parallel；The hair of the NPN triode
Penetrate collection and connect the 7th resistance, the 8th resistance, the 9th resistance, one end of the tenth resistance respectively, described the
Seven resistance, the 8th resistance, the 9th resistance, the other end ground connection of the tenth resistance；The current collection of the NPN triode
Pole is connected with the indoor lamp LED；The indoor lamp switch is arranged between the second resistance and the 4th resistance, described
Indoor lamp switch includes the first connector, the second connector and the 3rd connector, and the 3rd connector is empty, the interior
Second connector of lamp switch connects the second resistance, and first connector connects the 4th resistance；Described
The output end of three resistance one end connection gate input voltage process circuit, the other end connect described 5th resistance one end.
The indoor lamp includes light emitting diode and the 6th resistance, the light emitting diode the 6th resistance in parallel；Institute
The input for stating indoor lamp LED connects the output end of the input protection circuit, and the output of the indoor lamp LED connects the NPN
The colelctor electrode of triode.
The gate input voltage process circuit includes the 11st resistance, PNP triode and the 12nd resistance；Wherein, institute
The base stage for stating PNP triode connects one end of the 11st resistance, the other end connection gate level of the 11st resistance；
The transmitting collection connection indoor lamp power supply of the PNP triode；The colelctor electrode of the PNP triode connects the 3rd resistor respectively
One end and the 12nd resistance one end, the 12nd resistance the other end ground connection.
The beneficial effects of the utility model are that 1, the utility model includes input protection circuit, constant-current control circuit, interior
Lamp LED and gate input voltage process circuit；Input protection circuit is used for the interference for handling indoor lamp powered electromagnetic, and will processing
Stable level afterwards is supplied to constant-current control circuit；Constant-current control circuit is used for indoor lamp LED gradually bright, gradually dark and constant current drivings
Light power supply；Indoor lamp LED is used for in-car reading lamp function；Input voltage process circuit is gated to be used to handle gate level, place
Gate Automatic level control after reason controls indoor lamp LED gradually dark at closing time in gate effect, controls indoor lamp LED gradually during enabling
It is bright.The utility model due to using arrangement above can cause indoor lamp LED can constant current driving, and can meet it is gradually bright and gradually dark
Requirement.2nd, the utility model is relative to resistance-type drive circuit, and drive efficiency is not high, and most of energy is all consumed in resistance
On, and as voltage raises, electric current rises, and power rise is very big, but constant-current circuit, and as voltage raises, electric current is constant, work(
Rate does not have the big of resistance-type.In view of above reason, the utility model can be widely applied to automobile room lamp technical field.
Brief description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is Integral connection structure schematic diagram of the utility model under gating state；
Fig. 2 be the utility model gate effect under at closing time, indoor lamp LED curent change situation schematic diagram；
Fig. 3 be the utility model when non-gate acts on, indoor lamp LED constant current varying circuit curve synoptic diagram.
Embodiment
The utility model is described in further detail presently in connection with accompanying drawing.These accompanying drawings are simplified schematic diagram,
Only illustrate basic structure of the present utility model in a schematic way, therefore it only shows the composition relevant with the utility model.
As shown in figure 1, the utility model includes input protection circuit 100, constant-current control circuit 200, indoor lamp LED300
With gate input voltage process circuit 400.
Wherein, the input of input protection circuit 100 connection indoor lamp power supply, output end connect constant-current control circuit respectively
200 input and indoor lamp LED300, the output end connection constant-current control circuit of gate input voltage process circuit 400
200 another input.
Input protection circuit 100 is used for the interference for handling indoor lamp powered electromagnetic, and the stable level after processing is provided
To constant-current control circuit 200；Constant-current control circuit 200 with constant current driving to indoor lamp LED300 is gradually bright, gradually dark for lighting confession
Electricity；Indoor lamp LED300 is used for in-car reading lamp function；Input voltage process circuit 400 is gated to be used to handle gate level, place
Gate Automatic level control after reason controls indoor lamp LED300 gradually dark at closing time in gate effect, controls indoor lamp during enabling
LED300 is gradually bright.
Input protection circuit 100 is used for the interference for handling indoor lamp power level, and its input connects indoor lamp power supply, and
Indoor lamp power level V1 input high levels, input protection circuit 100 include the first electric capacity C1, Transient Suppression Diode T1, the
One resistance R1 and diode D1.
Wherein, in parallel between the first electric capacity C1, Transient Suppression Diode T1, first resistor R1, the output end of three is common
Ground connection, it is in parallel between the first electric capacity C1, Transient Suppression Diode T1, first resistor R1 to form EMC protection circuitry, protected by EMC
After protection circuit, connection diode D1 positive pole.Diode D1 negative pole connects indoor lamp LED300 input and constant current respectively
The input of control circuit 200.
Above-mentioned input protection circuit 100 can use any other form, only need to meet EMC requirement, only at vehicle body
Worked in the case of electromagnetic interference, on the circuit of normal work without influence.Do not limit herein.
Constant-current control circuit 200 with constant current driving to the indoor lamp LED300 is gradually bright, gradually dark for lighting power supply, constant current
Control circuit 200 includes second resistance R2,3rd resistor R3, the 4th resistance R4, the second electric capacity C2, voltage-regulator diode D3, the 5th
Resistance R5, the 3rd electric capacity C3, NPN triode Q3, the 7th resistance R7, the 8th resistance R8, the 9th resistance R9, the tenth resistance R10 and
Indoor lamp switch SW1.
Wherein, second resistance R2 one end connection diode D1 negative pole, the second resistance R2 electricity of other end connection the 4th
R4, second resistance R2 and the 4th resistance R4 series connection partial pressure are hindered, voltage-regulator diode D3 is connected in parallel on the 4th resistance R4 both ends；Second electric capacity
C2 is connected in parallel on voltage-regulator diode D3 both ends, and the second electric capacity C2 is used to protect voltage-regulator diode D3 not by electromagnetic interference.The pole of voltage stabilizing two
Pipe D3 negative pole connects the 5th resistance R5 one end, the 5th resistance R5 other end connection NPN triode Q3 base stage, the 3rd electricity
Hold between C3 parallel connection NPN triodes Q3 base stage and ground, make NPN triode Q3 not by electromagnetic interference.NPN triode Q3 transmitting
Collection connects the 7th resistance R7, the 8th resistance R8, the 9th resistance R9, the tenth resistance R10 one end, the 7th resistance R7, the 8th respectively
Resistance R8, the 9th resistance R9, the tenth resistance R10 other end ground connection, the 7th resistance R7, the 8th resistance R8, the 9th resistance R9, the
Ten resistance R10 are power resistor, consume circuit power.NPN triode Q3 colelctor electrode is connected with indoor lamp LED300.
In above-described embodiment, tetra- the 7th resistance R7, the 8th resistance R8, the 9th resistance R9, the tenth resistance R10 resistor coupled in parallel
Resistance afterwards is sampling resistor, can adjust LED current size, because a resistor power is inadequate, needs four resistance
To disperse power.
Indoor lamp switch SW1 is arranged between second resistance R2 and the 4th resistance R4, and indoor lamp switch SW1 includes first and connected
Interface 1, the second connector 2 and the 3rd connector 3, and the 3rd connector 3 is sky, indoor lamp switch SW1 the second connector 2 connects
Second resistance R2 is met, the first connector 1 connects the 4th resistance R4.When the second connector 2 and the first connector 1 connect, constant current
Drive circuit 200 turns on.When the second connector 2 and the 3rd connector 3, constant-current drive circuit is closed.
The output end of 3rd resistor R3 one end connection gate input voltage process circuit 400, the other end connect the 5th resistance
R5 one end.
Indoor lamp LED300 is used for in-car reading lamp function, and indoor lamp LED300 includes the electricity of LED 1 and the 6th
Hinder R6, the 6th resistance R6 of the parallel connection of LED 1.Indoor lamp LED300 output connection NPN triode Q3 colelctor electrode,
The output end of indoor lamp LED300 input connection input protection circuit 100.
Gate input voltage process circuit 400 to be used to handle gate level V2, it includes the 11st tri- pole of resistance R11, PNP
Pipe Q1 and the 12nd resistance R12.
Wherein, PNP triode Q1 base stage connects the 11st resistance R11 one end, and the 11st resistance R11 other end connects
Meet gate level V2；PNP triode Q1 transmitting collection connection indoor lamp power level V1；PNP triode Q1 colelctor electrode difference
Connect 3rd resistor R3 one end and the 12nd resistance R12 one end, the 12nd resistance R12 other end ground connection.
A level anti-phase with gate level V2 is obtained in PNP triode Q1 colelctor electrode P1 points：
During enabling, indoor lamp power level V1 after enabling, is maintained at low level, but now indoor lamp is by high step-down
Open, so we need a high level to go to open NPN triode Q3, go to control the light-emitting diodes in indoor lamp LED300
Pipe LED1 is lighted.
At closing time, indoor lamp power level V1 is uprised by low, after shutdown, is maintained at high level, but now indoor lamp is
Close, so we need a low level to go to close NPN triode Q3, go to control the light-emitting diodes in indoor lamp LED300
Pipe LED1 extinguishes.
One and the anti-phase voltage of incoming level can be obtained by gating input voltage process circuit 400, controls NPN tri-
Pole pipe Q3 opening and closing, so as to realize lighting and closing for the LED 1 in indoor lamp LED300.
During utility model works：
(1) when utility model works are in gating state, when indoor lamp switch SW1 the second connector 2 and the 3rd connects
Connected between interface 3：
11) at closing time：
Gate level V2 inputs (this is prior art, therefore is no longer described in detail) by body control system, and level is risen to by 0V
13.5V, P1 point voltage calculation：The voltage of PNP triode Q1 emitter stages is V1, and base voltage is V1-0.7V, and base stage is electric
Stream is (V1-0.7V-V2)/R11, and the voltage that collector current is β * (V1-0.7V-V2)/R11, P1 point is β * (V1-
0.7V-V2)*R12/R11.Because V1 constant is 13.5V, the voltage of P1 points is (12.8V-V2) * β * R12/R11.Setting
R12/R11=1/ β.Then the voltage of P1 points is 12.8V-V2.As can be seen that when V2 reduces, the rise of P1 points voltage, V2 increases
When, P1 points voltage reduces.
P1 level and V2 are anti-phase, and the level of P1 points is used for controlling NPN triode Q3 opening and closing, so as in control room
LED 1 lights and extinguishes in lamp LED300.
(setting of 3rd resistor R3 and the 4th resistance R4 resistances is according to work for setting 3rd resistor R3 and the 4th resistance R4 resistances
Make person works' experience, it is not described here in detail), it is 5.1V voltage-regulator diodes to make voltage-regulator diode D3, D3, is not exclusively opened, i.e.,
The voltage at voltage-regulator diode D3 both ends is less than voltage of voltage regulation 5.1V, and now, voltage and the electric current at voltage-regulator diode D3 both ends have one
Section is close to the curve of linear change, and the voltage linear with P1 points diminishes, and the electric current on voltage-regulator diode D3 is gradually reduced, voltage stabilizing
The voltage at diode D3 ends is linearly diminished by 5.1V-0V, is diminished so as to the voltage linear of NPN triode Q3 emitter stages, because the
Seven resistance R7, the 8th resistance R8, the 9th resistance R9, the tenth resistance R10 resistances are certain, then NPN triode Q3 emitter currents by
Gradual change is small, so that NPN triode Q3 collector currents taper into, that is, flows through the light emitting diode in indoor lamp LED300
LED1 electric currents linearly diminish, as shown in Fig. 2 the brightness of LED 1 is gradually dimmed, drive efficiency is high, so as to meet client
Requirement.
12) when opening the door：
During enabling, the course of work is with state at closing time completely on the contrary, therefore being no longer described in detail.
(2) when utility model works are in gating state, when indoor lamp switch SW1 the second connector 2 and first connects
Connected between interface 1：
Now indoor lamp LED300 is opened, and is driven for constant current, as shown in figure 3, because vehicle body voltage is 9-16V, works as interior
When lamp power level V1 voltages reach 9V, second resistance R2 and the 4th resistance R4 resistances (second resistance R2 and the 4th resistance are set
The setting of R4 resistances is according to staff's working experience, and it is not described here in detail) now, reach the voltage on voltage-regulator diode D3
5.1V, because voltage-regulator diode D3 reaches burning voltage, when V1 continues to rise, voltage-regulator diode D3 voltages can be stablized in 5.1V,
So as to which NPN triode Q3 base voltages are stablized in 5.1V, emitter voltage Ub-0.7V=5.1V-0.7V=4.4V, that is, sample
Resistance：7th resistance R7, the 8th resistance R8, the 9th resistance R9, the voltage stabilization at the tenth resistance R10 both ends flow through in 4.4V
Seven resistance R7, the 8th resistance R8, the 9th resistance R9, the tenth resistance R10 electric current constant current are constant, i.e., emitter current is constant, from
And make it that NPN triode Q3 collector currents are constant, that is, the electric current of LED 1 flowed through in indoor lamp LED300 is constant,
So as to realize that the constant current of LED 1 of 9-16V operating voltages drives.
(3) when the utility model is not operate at gating state：
When indoor lamp LED300 is not operate at gating state, gate level V2 is hanging, is inputted without gate-control signal, gate
Input voltage process circuit 400 does not work.
By indoor lamp switch SW1 press and bounce control indoor lamp LED300 lamps it is bright, go out：Indoor lamp switch
SW1 is pressed, i.e. indoor lamp switch SW1 second interface 2 is connected with first interface 1, and now, indoor lamp LED300 is opened, indoor
Lamp LED300 is bright, has been described in detail in this process steps (2), therefore repeat no more.Indoor lamp switch SW1 upsprings, i.e. indoor lamp switch SW1
Second interface 2 be connected with the 3rd interface 3, now, NPN triode Q3 bright control indoor lamp LED300 does not have voltage driving,
Indoor lamp LED300 goes out.
Using it is above-mentioned according to desirable embodiment of the present utility model as enlightenment, pass through above-mentioned description, related work people
Member can carry out various changes and amendments in the range of without departing from this item utility model technological thought completely.This item is real
The content being not limited to new technical scope on specification, it is necessary to which its technology is determined according to right
Property scope.
Claims (5)
- A kind of 1. gradually dark gradually bright processing unit of the LED constant current circuit based on indoor lamp gate shelves, it is characterised in that：It includes defeated Enter protection circuit (100), constant-current control circuit (200), indoor lamp LED (300) and gate input voltage process circuit (400)；Wherein, input protection circuit (100) the input connection indoor lamp power supply, output end connect the current constant control respectively An input and the indoor lamp LED (300) for circuit (200), the output of the gate input voltage process circuit (400) End connects another input of the constant-current control circuit (200)；The input protection circuit (100) is used for the interference for handling indoor lamp powered electromagnetic, and the stable level after processing is carried Supply the constant-current control circuit (200)；The constant-current control circuit (200) be used for the indoor lamp LED (300) gradually it is bright, Power supply is lighted in gradually dark and constant current driving；The indoor lamp LED (300) is used for in-car reading lamp function；The gate input voltage Process circuit (400) is used to handle gate level, and the gate Automatic level control after processing is in gate effect, at closing time described in control Indoor lamp LED (300) is gradually dark, controls the indoor lamp LED (300) gradually bright during enabling.
- 2. the gradually dark gradually bright processing unit of the LED constant current circuit as claimed in claim 1 based on indoor lamp gate shelves, its feature It is：The input protection circuit (100) include the first electric capacity (C1), Transient Suppression Diode (T1), first resistor (R1) and Diode (D1)；Wherein, it is in parallel between first electric capacity (C1), the Transient Suppression Diode (T1), the first resistor (R1), three The output end common ground of person, three form EMC protection circuitry, and the input of three connects the positive pole of the diode (D1)； The negative pole of the diode (D1) connects the input and the constant-current control circuit (200) of the indoor lamp LED (300) respectively Input.
- 3. the gradually dark gradually bright processing unit of the LED constant current circuit as claimed in claim 2 based on indoor lamp gate shelves, its feature It is：The constant-current control circuit (200) includes second resistance (R2), 3rd resistor (R3), the 4th resistance (R4), the second electric capacity (C2), voltage-regulator diode (D3), the 5th resistance (R5), the 3rd electric capacity (C3), NPN triode (Q3), the 7th resistance (R7), the 8th Resistance (R8), the 9th resistance (R9), the tenth resistance (R10) and indoor lamp switch (SW1)；Wherein, one end of the second resistance (R2) connects the negative pole of the diode (D1), the second resistance (R2) it is another One end connects the 4th resistance (R4), the second resistance (R2) and the 4th resistance (R4) series connection partial pressure, the voltage stabilizing Diode (D3) is connected in parallel on the 4th resistance (R4) both ends；Second electric capacity (C2) is connected in parallel on the voltage-regulator diode (D3) Both ends, second electric capacity (C2) are used to protect the voltage-regulator diode (D3) not by electromagnetic interference；The voltage-regulator diode (D3) negative pole connects one end of the 5th resistance (R5), and the other end of the 5th resistance (R5) connects the poles of NPN tri- The base stage of (Q3) is managed, between the base stage and ground of the 3rd electric capacity (C3) NPN triode (Q3) in parallel；The poles of NPN tri- The transmitting collection of pipe (Q3) connects the 7th resistance (R7), the 8th resistance (R8), the 9th resistance (R9), described respectively One end of tenth resistance (R10)；7th resistance (R7), the 8th resistance (R8), the 9th resistance (R9), described The other end ground connection of ten resistance (R10)；The colelctor electrode of the NPN triode (Q3) is connected with the indoor lamp LED (300)；Institute State indoor lamp switch (SW1) to be arranged between the second resistance (R2) and the 4th resistance (R4), the indoor lamp switch (SW1) the first connector (1), the second connector (2) and the 3rd connector (3) are included, and the 3rd connector (3) is sky, Second connector (2) of the indoor lamp switch (SW1) connects the second resistance (R2), first connector (1) Connect the 4th resistance (R4)；3rd resistor (R3) one end connection gate input voltage process circuit (400) Output end, 3rd resistor (R3) other end connect described 5th resistance (R5) one end.
- 4. the gradually dark gradually bright processing unit of the LED constant current circuit as claimed in claim 3 based on indoor lamp gate shelves, its feature It is：The indoor lamp LED (300) includes light emitting diode (LED1) and the 6th resistance (R6), the light emitting diode (LED1) the 6th resistance (R6) in parallel；The input of the indoor lamp LED (300) connects the input protection circuit (100) output end, the output end of the indoor lamp LED (300) connect the colelctor electrode of the NPN triode (Q3).
- 5. the gradually dark gradually bright processing unit of the LED constant current circuit as claimed in claim 4 based on indoor lamp gate shelves, its feature It is：The gate input voltage process circuit (400) includes the 11st resistance (R11), PNP triode (Q1) and the 12nd electricity Hinder (R12)；Wherein, the base stage of the PNP triode (Q1) connects one end of the 11st resistance (R11), the 11st resistance (R11) other end connection gate level (V2)；The transmitting collection connection indoor lamp power supply of the PNP triode (Q1)；The PNP The colelctor electrode of triode (Q1) connects one end of the 3rd resistor (R3) and one end of the 12nd resistance (R12) respectively, The other end ground connection of 12nd resistance (R12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720230250.3U CN206713108U (en) | 2017-03-10 | 2017-03-10 | The gradually dark gradually bright processing unit of LED constant current circuit based on indoor lamp gate shelves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720230250.3U CN206713108U (en) | 2017-03-10 | 2017-03-10 | The gradually dark gradually bright processing unit of LED constant current circuit based on indoor lamp gate shelves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206713108U true CN206713108U (en) | 2017-12-05 |
Family
ID=60469712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720230250.3U Active CN206713108U (en) | 2017-03-10 | 2017-03-10 | The gradually dark gradually bright processing unit of LED constant current circuit based on indoor lamp gate shelves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206713108U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108575007A (en) * | 2017-03-10 | 2018-09-25 | 常州星宇车灯股份有限公司 | The gradually dark gradually bright processing unit of the LED constant current circuit of shelves is gated based on indoor lamp |
| CN109041353A (en) * | 2018-09-13 | 2018-12-18 | 茂硕科技有限公司 | A kind of electric current loop feedback compensation control circuit of variable gain |
| CN110225626A (en) * | 2019-07-09 | 2019-09-10 | 深圳南方德尔汽车电子有限公司 | A kind of indoor lamp for car controller and the vehicle with indoor lamp controller |
-
2017
- 2017-03-10 CN CN201720230250.3U patent/CN206713108U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108575007A (en) * | 2017-03-10 | 2018-09-25 | 常州星宇车灯股份有限公司 | The gradually dark gradually bright processing unit of the LED constant current circuit of shelves is gated based on indoor lamp |
| CN109041353A (en) * | 2018-09-13 | 2018-12-18 | 茂硕科技有限公司 | A kind of electric current loop feedback compensation control circuit of variable gain |
| CN109041353B (en) * | 2018-09-13 | 2023-09-19 | 深圳茂硕电子科技有限公司 | Variable-gain current loop feedback compensation control circuit |
| CN110225626A (en) * | 2019-07-09 | 2019-09-10 | 深圳南方德尔汽车电子有限公司 | A kind of indoor lamp for car controller and the vehicle with indoor lamp controller |
| CN110225626B (en) * | 2019-07-09 | 2024-03-29 | 深圳南方德尔汽车电子有限公司 | Indoor lamp controller for vehicle and vehicle with indoor lamp controller |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206713108U (en) | The gradually dark gradually bright processing unit of LED constant current circuit based on indoor lamp gate shelves | |
| CN102387629B (en) | Luminous unit driving circuit and light-emitting device | |
| CN202172516U (en) | Brightness and color temperature adjustable LED lamp | |
| CN205336574U (en) | Indoor intelligent LED lighting system who combines natural light | |
| CN204014221U (en) | The single colour temperature regulating circuit that drives of two-way LED illumination | |
| CN101977469B (en) | Adjustable LED drive power supply | |
| CN205160868U (en) | LED circuit and LED lamps and lanterns | |
| CN206311923U (en) | A kind of remote control control circuit with backlight screen | |
| CN203136242U (en) | LED constant-current circuit with PWM light modulation | |
| CN108575007A (en) | The gradually dark gradually bright processing unit of the LED constant current circuit of shelves is gated based on indoor lamp | |
| CN204634115U (en) | LED dimming electric torch | |
| CN204616156U (en) | A kind of LED drive circuit being applicable to controllable silicon light modulation | |
| CN201639821U (en) | Dimming control circuit of LED lamp | |
| CN204119604U (en) | The Multi-channel high-frequency impulse circuit of LED lamp | |
| CN205454177U (en) | Illuminating device | |
| CN202026504U (en) | Driving circuit of light emitting diode (LED) constant current source | |
| CN204598401U (en) | A kind of LED touch dimmer power supply | |
| CN105898916B (en) | A kind of method of light-emitting device and its coordinate plant growth | |
| CN204362403U (en) | A kind of lighting lamp circuit | |
| CN202310243U (en) | LED power supply dimming circuit | |
| CN203632904U (en) | Led decorative lamp | |
| CN207266350U (en) | LED dimming driving circuits and LED drive device | |
| CN205648088U (en) | Light -operated automatic dimmer circuit | |
| CN204180342U (en) | LED drive circuit and refrigerator | |
| CN110062506A (en) | A kind of sunlight simulating device and its driving method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |