CN208581365U - Control circuit suitable for multiple LED light - Google Patents
Control circuit suitable for multiple LED light Download PDFInfo
- Publication number
- CN208581365U CN208581365U CN201820250738.7U CN201820250738U CN208581365U CN 208581365 U CN208581365 U CN 208581365U CN 201820250738 U CN201820250738 U CN 201820250738U CN 208581365 U CN208581365 U CN 208581365U
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- led light
- voltage
- led
- main traverse
- drive module
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Abstract
A kind of control circuit suitable for multiple LED light, including power supply, LED rectification drive module, multiple LED light lamp caps being arranged in parallel and signal lines.Control circuit provided by the utility model suitable for multiple LED light, which can be realized, makes LED lamp holder and LED rectify drive module progress dismantling connection, makes user that can need the quantity of selected LED lamp holder according to it, it is made to be attached, work with LED rectification drive module.It can reach by build-out resistor and adjust the purpose that LED rectifies drive module output electric current, enable to rectify the LED lamp holder steady operation that drive module is connect with this LED.By signal lines can real-time detection LED rectify drive module export electric current size, whether processor and first voltage comparator divided according to the size control build-out resistor that signal lines export electric current, current limliting, and then achievees the purpose that make LED lamp holder steady operation.
Description
Technical field
The utility model relates to technical field of LED illumination, and in particular to a kind of control circuit suitable for multiple LED light.
Background technique
LED (Light Emitting Diode), light emitting diode are that one kind can convert electrical energy into consolidating for visible light
The semiconductor devices of state, it can directly be converted electricity to light.The heart of LED is the chip of a semiconductor, one end of chip
It being attached on a bracket, one end is cathode, and the other end connects the anode of power supply, is encapsulated entire chip by epoxy resin,
Wherein LED lamp bead is exactly the english abbreviation abbreviation LED of light emitting diode.
LED light has many advantages, such as energy conservation, long service life and can work at high speeds, with the hair of society
Exhibition, the frequency that LED lamp is used is higher and higher, and can control multiple LED lamps and lanterns simultaneously and work at the same time, play illumination,
The purpose of decoration.But driving circuit in the prior art to multiple LED lamps carry out illuminalive power-supply work when, can not basis
The quantity of the LED lamp of driving circuit connection carries out and controls the size of electric current in entire driving circuit, so that being controlled by the drive
Multiple LED lamps of dynamic circuit can not work normally.
Utility model content
Therefore, the technical problem to be solved by the present invention is to overcome driving circuit in the prior art to multiple
LED lamp can not adjust defect brought by the electric current of its output when being powered.
For this purpose, providing a kind of control circuit suitable for multiple LED light, comprising:
Power supply；
LED rectifies drive module, is connect with the power supply by plug, the friendship for exporting the power supply
Galvanic electricity pressure is converted into DC voltage；
Multiple LED light being arranged in parallel are connect by main traverse line with the LED rectification drive module respectively, load institute
The DC voltage for stating LED rectification drive module output works；
Multiple build-out resistors being arranged in parallel are arranged in parallel with multiple LED light one by one respectively.
Further,
Each build-out resistor is provided with to be connected correspondingly respectively with LED rectification drive module and switch.
Further,
Two main traverse lines are connected with signal lines, and the signal lines are connected with processor, described
Processor is used to receive the first detection electric current of the signal lines；
The processor and conducting switch connect；
When the first detection electric current is greater than first pre-set current value, the processor control conducting switch is disconnected
It opens.
Further,
Two main traverse lines are connected with signal lines, and the signal lines connect a first voltage and compare
Device, is provided with divider resistance between the signal lines and the first voltage comparator, the signal lines are defeated
The first detection electric current generates the first detection voltage by divider resistance out, processor for receiving the of the signal lines
One detection voltage；
The first voltage comparator and conducting switch connect；
When the first detection voltage is greater than first preset voltage value, the first voltage comparator output control signal control
The conducting switch is made to disconnect.
Further,
The described conducting switch is triode, the collector and emitter of the triode respectively with the build-out resistor
It is connected with main traverse line, the base stage of the triode is connect with the output end of the first voltage comparator.
Further,
It further include over-current protecting unit comprising:
Piezoresistance is adopted in the main traverse line setting one, and described adopting is provided between piezoresistance and main traverse line anode adopts
Collect node；
Reference voltage provides device, for providing preset first reference voltage；
4th voltage comparator provides device coupling with the acquisition node and reference voltage respectively, adopts for comparing
Ji Jiedianchu adopts the first collection voltages and the first reference voltage of piezoresistance, when first collection voltages are greater than described first
When reference voltage, output drive signal；
Control device is coupled with the output end of the 4th voltage comparator, is controlled by the driving signal control institute
The main traverse line open circuit stated.
Further,
The control device includes relay coil and relay normally closed contact, the relay coil and described
The output end of 4th voltage comparator connects；The relay normally closed contact is located at the leading line loop, is controlled by described
The relay coil control leading line loop disconnect.
Further,
Be provided with LED lamp holder between each LED light and the main traverse line, the LED lamp holder respectively with it is described
Main traverse line both ends connection, the LED light can be plugged with the LED lamp holder.
Technical solutions of the utility model have the advantages that
LED lamp holder and LED are rectified 1. the control circuit provided by the utility model suitable for multiple LED light can be realized
Drive module carries out dismantling connection, makes user that can need the quantity of selected LED lamp cap according to it, it is made to rectify driving mould with LED
Block is attached, works.
The purpose that drive module exports electric current is rectified 2. can reach by build-out resistor and adjust LED, makes to rectify with this LED and drive
The LED lamp holder of dynamic model block connection being capable of steady operation.
3. by signal lines can real-time detection LED rectify the size that drive module exports electric current, processor and the
One voltage comparator according to signal lines export electric current size control build-out resistor whether divided, current limliting, Jin Erda
To the purpose for making LED lamp holder steady operation.
4. by setting over-current protecting unit can electric current to main traverse line, voltage carry out real-time monitoring, when the electricity of main traverse line
After stream, overtension, control main traverse line open circuit is played the role of to the main traverse line and each load protection.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the first embodiment of control circuit；
Fig. 2 is second of embodiment of control circuit；
Fig. 3 is the third embodiment of control circuit；
Fig. 4 is the 4th kind of embodiment of control circuit.
101, power supply；102, LED rectifies drive module；30, main traverse line；40, signal lines；50, overcurrent protection
Unit.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical
Novel protected range.
It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.In addition, following institute
Technical characteristic involved in the utility model different embodiments of description as long as they do not conflict with each other can phase
Mutually combine.
A kind of control circuit suitable for multiple LED light, its structural schematic diagram as shown in Figure 1, including power supply 101,
Wherein the power supply 101 is 220V alternating current.LED rectifies drive module 102, and it can be bridge that wherein the LED, which rectifies drive module 102,
Formula rectification circuit is connect with power supply 101 by plug, and the alternating voltage for exporting power supply 101 is converted into directly
Galvanic electricity pressure.Multiple LED light being arranged in parallel are connect by main traverse line 30 with LED rectification drive module 102 respectively, load LED
The DC voltage that rectification drive module 102 exports works, which rectifies the direct current that drive module 102 exports by LED
It is powered, shines.Multiple build-out resistors being arranged in parallel, are arranged in parallel with multiple LED light one by one respectively.Pass through build-out resistor
The purpose of partial pressure can be achieved, and can control the size of current of main traverse line 30, play the role of current limliting, protection.The present embodiment
In include three LED lamps, the first LED light D1, the second LED light D2 and the n-th LED light Dn, each LED light include connected in parallel set
The build-out resistor set, including the first build-out resistor R1, the second build-out resistor R2 and the n-th build-out resistor Rn, can by build-out resistor
Have the function that partial pressure, current limliting.
In one embodiment, as shown in Fig. 2, each build-out resistor be provided with the LED rectification drive module 102 divide
Conducting switch not correspondingly, wherein conducting switch can be triode, metal-oxide-semiconductor etc..It connects respectively with build-out resistor
Setting.Including the first triode Q1, the second triode Q2 and the n-th triode Qn, each triode respectively with match electricity
Whether resistance is arranged in series, for the first build-out resistor R1, the second build-out resistor R2 and the n-th build-out resistor Rn between main traverse line 30
Conducting, and then whether controller is divided, current limliting.
In one embodiment, two main traverse lines 30 are connected with signal lines 40, and signal lines 40 are connected with processing
Device, processor is used to receive the first detection electric current of signal lines 40, processor and conducting switch connection, when the first detection electricity
Stream be greater than first pre-set current value when, processor control conducting switch disconnect, at this time can processor can be in the base stage of triode
Locate to load low level voltage at B1, B2 and Bn, is not turned between the base stage and emitter of triode, that is, controls the first triode
Q1, the second triode Q2 and the n-th triode Qn are disconnected, so that the first build-out resistor R1, the second build-out resistor R2 and the n-th matching
Resistance Rn is not connect with main traverse line 30, and then makes the current reduction in main traverse line 30, and playing prevents 30 overcurrent of main traverse line and cause
Load or harness damage.
In one embodiment, as shown in figure 3, two main traverse lines 30 are connected with signal lines 40, signal lines 40
A first voltage comparator U1 is connected, divider resistance R3 is provided between signal lines 40 and first voltage comparator U1, is examined
It surveys first detection electric current of the output of signal wire 40 and first detection voltage is generated by divider resistance, first voltage comparator U1 is for connecing
Receive the first detection voltage of signal lines 40；First voltage comparator U1 and conducting switch connection；When the first detection voltage is big
When first preset voltage value, first voltage comparator U1 output control signal control conducting switch is disconnected.Wherein further include
Second voltage comparator U2 and the n-th voltage comparator Un, the output end of each voltage comparator connect one to one three poles respectively
The base stage of pipe, the output end of first voltage comparator U1 connect with the base stage B1 of the first triode Q1, second voltage comparator U2
Output end connect with the base stage B2 of the second triode Q2, the base of the output end of the n-th voltage comparator Un and the n-th triode Qn
Pole Bn connection, and each voltage comparator is provided with input voltage Ua, Ub and the Un connecting with its positive input, wherein
Input voltage Ua, Ub and Un can be of different sizes, when the voltage that the divider resistance R3 connecting with signal lines 40 is provided is greater than
When any one input voltage, voltage comparator output low level signal control corresponding with the input voltage and the voltage ratio
Transistor emitter corresponding compared with device and collector disconnect.
In one embodiment, conducting switch be triode, the collector and emitter of triode respectively with build-out resistor
It is connected with main traverse line 30, the base stage of triode and the output end of voltage comparator connect.
In one embodiment, as shown in figure 4, further including over-current protecting unit 50 comprising: the setting of main traverse line 30 one is adopted
Piezoresistance R4 is adopted and is provided with acquisition node between 30 anode of piezoresistance R4 and main traverse line；Reference voltage provides device, for providing
Preset first reference voltage；4th voltage comparator U4 provides device coupling with acquisition node and reference voltage respectively, is used for
Compare the first collection voltages and the first reference voltage that piezoresistance R4 is adopted at acquisition node, when the first collection voltages are greater than the first base
When quasi- voltage, output drive signal；Control device couples with the output end of second voltage comparator, is controlled by driving signal control
30 open circuit of main traverse line processed.The electric current at main traverse line 30 is converted into voltage by adopting piezoresistance, and by the first collection voltages and
One reference voltage is compared, and when the first collection voltages are greater than the first reference voltage, output drive signal controls control device
Work can make to make its open circuit when the electric current at main traverse line 30 is excessive in the above manner, achieve the purpose that protect it.
In one embodiment, it includes the first reference resistance R21 of series connection ground connection setting, second that reference voltage, which provides device,
Reference resistance R22 and third reference resistance R23, wherein the node of the first reference resistance R21 and the second reference resistance R22 coupling the
Reverse input end of four voltages than machine U4 adopts the positive input of piezoresistance R4 coupling second voltage comparator U4.
In one embodiment, control device includes relay coil KA and relay normally closed contact KA, relay coil
KA is connect with the output end of second voltage comparator U4；Relay normally closed contact KA is located at 30 circuit of main traverse line, is controlled by relay
Device coil KA controls 30 circuit of main traverse line and disconnects.
In one embodiment, be provided with LED lamp holder between each LED light and main traverse line 30, LED lamp cap respectively with master
The both ends of conducting wire 30 connect, and LED light can be plugged with LED lamp holder.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes among the protection scope created still in the utility model.
Claims (8)
1. a kind of control circuit suitable for multiple LED light characterized by comprising
Power supply (101)；
LED rectifies drive module (102), is connect with the power supply (101) by plug, is used for the power supply
(101) alternating voltage exported is converted into DC voltage；
Multiple LED light being arranged in parallel are connect by main traverse line (30) with LED rectification drive module (102) respectively, are added
The DC voltage for carrying LED rectification drive module (102) output works；
Multiple build-out resistors being arranged in parallel are arranged in parallel with multiple LED light one by one respectively.
2. the control circuit according to claim 1 suitable for multiple LED light, which is characterized in that
Each build-out resistor is provided with to be connected correspondingly respectively with LED rectification drive module (102) and switch.
3. the control circuit according to claim 2 suitable for multiple LED light, which is characterized in that
Two main traverse lines (30) are connected with signal lines (40), and the signal lines (40) are connected with processing
Device, the processor are used to receive the first detection electric current of the signal lines (40)；
The processor and conducting switch connect；
When the first detection electric current is greater than first pre-set current value, the processor control conducting, which switchs, to be disconnected.
4. the control circuit according to claim 3 suitable for multiple LED light, which is characterized in that
Two main traverse lines (30) are connected with signal lines (40), one first electricity of the signal lines (40) connection
Comparator is pressed, divider resistance, the inspection are provided between the signal lines (40) and the first voltage comparator
It surveys the first detection electric current of signal wire (40) output and the first detection voltage is generated by divider resistance, the processor is for receiving
First detection voltage of the signal lines (40)；
The first voltage comparator and conducting switch connect；
When the first detection voltage is greater than first preset voltage value, the first voltage comparator output control signal controls institute
Conducting switch is stated to disconnect.
5. the control circuit according to claim 4 suitable for multiple LED light, which is characterized in that
The described conducting switch is triode, the collector and emitter of the triode respectively with the build-out resistor and master
Conducting wire (30) connection, the base stage of the triode are connect with the output end of the first voltage comparator.
6. the control circuit according to claim 1 suitable for multiple LED light, which is characterized in that
It further include over-current protecting unit (50) comprising:
Piezoresistance is adopted in main traverse line (30) setting one, and described adopting is arranged between piezoresistance and the main traverse line (30) anode
There is acquisition node；
Reference voltage provides device, for providing preset first reference voltage；
4th voltage comparator provides device coupling with the acquisition node and reference voltage respectively, for comparing acquisition section
The first collection voltages and the first reference voltage that piezoresistance is adopted at point, when first collection voltages are greater than first benchmark
When voltage, output drive signal；
Control device is coupled with the output end of the 4th voltage comparator, is controlled by described in the driving signal control
Main traverse line (30) open circuit.
7. the control circuit according to claim 6 suitable for multiple LED light, which is characterized in that
The control device includes relay coil and relay normally closed contact, the relay coil and the described the 4th
The output end of voltage comparator connects；The relay normally closed contact is located at the main traverse line (30) circuit, is controlled by described
Relay coil control main traverse line (30) circuit disconnect.
8. the control circuit according to claim 1 suitable for multiple LED light, which is characterized in that
Be provided with LED lamp holder between each LED light and the main traverse line (30), the LED lamp holder respectively with it is described
Main traverse line (30) both ends connection, the LED light can be plugged with the LED lamp holder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820250738.7U CN208581365U (en) | 2018-02-11 | 2018-02-11 | Control circuit suitable for multiple LED light |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820250738.7U CN208581365U (en) | 2018-02-11 | 2018-02-11 | Control circuit suitable for multiple LED light |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208581365U true CN208581365U (en) | 2019-03-05 |
Family
ID=65503181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820250738.7U Expired - Fee Related CN208581365U (en) | 2018-02-11 | 2018-02-11 | Control circuit suitable for multiple LED light |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208581365U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112032678A (en) * | 2020-09-02 | 2020-12-04 | 上海应用技术大学 | LED brightening lamp strip voltage distribution lamp stand |
-
2018
- 2018-02-11 CN CN201820250738.7U patent/CN208581365U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112032678A (en) * | 2020-09-02 | 2020-12-04 | 上海应用技术大学 | LED brightening lamp strip voltage distribution lamp stand |
| CN112032678B (en) * | 2020-09-02 | 2022-07-01 | 上海应用技术大学 | LED brightening lamp strip voltage distribution lamp stand |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190305 Termination date: 20200211 |
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| CF01 | Termination of patent right due to non-payment of annual fee |