CN206629308U - A kind of LED adjusting control circuits - Google Patents
A kind of LED adjusting control circuits Download PDFInfo
- Publication number
- CN206629308U CN206629308U CN201720387567.8U CN201720387567U CN206629308U CN 206629308 U CN206629308 U CN 206629308U CN 201720387567 U CN201720387567 U CN 201720387567U CN 206629308 U CN206629308 U CN 206629308U
- Authority
- CN
- China
- Prior art keywords
- switch pipe
- storage device
- energy storage
- control circuits
- releasing
- 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- Withdrawn - After Issue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
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]
Landscapes
- Direct Current Feeding And Distribution (AREA)
Abstract
The application provides a kind of LED adjusting control circuits, forms module of releasing by first resistor and first switch pipe, the drainage function in LED brightness adjustment controls is realized with reference to second switch pipe；High voltage startup module is formed by diode and energy storage device, with reference to the output voltage of second switch pipe first end, is charged by the diode for the energy storage device, working power is provided for the LED adjusting control circuits, to realize high voltage startup function；Compared with prior art, the application, which employs less component, realizes drainage function and high voltage startup function, solves the problems, such as that component is more in the prior art.
Description
Technical field
It the utility model is related to LED control technology fields, more particularly to a kind of LED adjusting control circuits.
Background technology
Fig. 1 show conventional topological with drainage function and the LED adjusting control circuits of high voltage startup function.Wherein,
One resistance R1 and first switch pipe M1 compositions realize the module of drainage function, second resistance R2,3rd resistor R3, the first electric capacity
C1, second switch pipe M2, and diode D2 compositions realize the module of high voltage startup function；The mould for realizing high voltage startup function
Block is connected with the power pins vcc of control chip；As seen from Figure 1, the component of conventional topology is more in the prior art.
Utility model content
In view of this, the utility model provides a kind of LED adjusting control circuits, with solve in the prior art component compared with
The problem of more.
To achieve these goals, the technical scheme that the utility model embodiment provides is as follows：
A kind of LED adjusting control circuits, are comprised at least：Module of releasing and high voltage startup module；Wherein, the module of releasing
Including：
One end receives the first resistor of line voltage；
The first switch pipe that first end is connected with the first resistor other end；Second end of the first switch pipe passes through
Second switch pipe is grounded；The control termination bias voltage of the first switch pipe；
The high voltage startup module includes：
The diode that anode is connected with the second end of the first switch pipe；
The energy storage device that one end is connected with the diode cathode；The other end ground connection of the energy storage device；
Wherein, the module of releasing shares the first switch pipe with the high voltage startup module.
Preferably, the energy storage device is electric capacity.
Preferably, the energy storage device is inductance.
Preferably, the first switch pipe is PMOS transistor；The second switch pipe is PMOS transistor.
A kind of LED adjusting control circuits, including：Control chip, module of releasing and high voltage startup module；Wherein, it is described to let out
Amplification module includes：
One end receives the first resistor of line voltage；
The first switch pipe that first end is connected with the first resistor other end；Second end of the first switch pipe and institute
The pin of releasing for stating control chip is connected；The control terminal of the first switch pipe is connected with the bias pin of the control chip；
The high voltage startup module includes：
The diode that anode is connected with the pin of releasing of the control chip；
The energy storage device that one end is connected with the diode cathode；The other end ground connection of the energy storage device；Two pole
Tube cathode is connected with the tie point of the energy storage device with the power pins of the control chip.
Preferably, the energy storage device is electric capacity.
Preferably, the energy storage device is inductance.
Preferably, the first switch pipe is PMOS transistor.
Preferably, in addition to：
One end receives the second resistance of the line voltage；The biasing of the other end of the second resistance and the control chip
Pin is connected；
The electric capacity that one end is connected with the tie point of the bias pin of the control chip；The other end ground connection of the electric capacity.
Preferably, the control chip includes：
The voltage-regulator diode of plus earth；Bias pin of the negative electrode of the voltage-regulator diode as the control chip；
Second switch pipe of the first end as the pin of releasing of the control chip；Second termination of the second switch pipe
Ground.
The application provides a kind of LED adjusting control circuits, and module of releasing, knot are formed by first resistor and first switch pipe
Conjunction second switch pipe realizes the drainage function in LED brightness adjustment controls；High voltage startup module is formed by diode and energy storage device, tied
The output voltage of second switch pipe first end is closed, is charged by the diode for the energy storage device, for the LED brightness adjustment controls
Circuit provides working power, to realize high voltage startup function；Compared with prior art, the application employs less component and realized
Drainage function and high voltage startup function, solve the problems, such as that component is more in the prior art.
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 required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is embodiment of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, also
Other accompanying drawings can be obtained according to the accompanying drawing of offer.
Fig. 1 is a kind of LED adjusting control circuits figure that prior art provides；
Fig. 2 is a kind of LED adjusting control circuits figure that the embodiment of the present application provides；
Fig. 3 is a kind of LED adjusting control circuits figure that another embodiment of the application provides；
Fig. 4 is a kind of LED adjusting control circuits figure that another embodiment of the application provides；
Fig. 5 is a kind of LED adjusting control circuits figure that another embodiment of the application provides.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, 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, belong to the scope of the utility model protection.
The utility model provides a kind of LED adjusting control circuits, to solve the problems, such as that component is more in the prior art.
Specifically, as shown in Fig. 2 the LED adjusting control circuits comprise at least：Module of releasing 101 and high voltage startup module
102；
Wherein, module of releasing 101 includes：
One end receives the first resistor R1 of line voltage；
The first switch pipe M1 that first end is connected with the first resistor R1 other ends；First switch pipe M1 the second end passes through
Two switching tube M2 are grounded；First switch pipe M1 control termination bias voltage Vbias；
High voltage startup module 102 includes：
The diode D that anode is connected with first switch pipe M1 the second end；
The energy storage device 121 that one end is connected with diode D negative electrodes；The other end ground connection of energy storage device 121；
Wherein, module of releasing 101 shares first switch pipe M1 with high voltage startup module 102.
Specifically operation principle is：
Before LED adjusting control circuits startup, second switch pipe M2 first end output high-potential voltage, height electricity
Position voltage is charged by diode D to energy storage device 121, after the voltage on energy storage device 121 reaches corresponding setting value,
The LED adjusting control circuits start, and then realize high voltage startup.
After the LED adjusting control circuit normal works, drive signal will be generated according to system requirements to second switch
Pipe M2 control terminal, the M2 conductings of control second switch pipe；The second ends of first switch pipe M1 will be dragged down after second switch pipe M2 conductings
Voltage so that first switch pipe M1 is turned on, and then causes line voltage Vbus to pass through first resistor R1, first switch pipe M1 and the
Two switching tube M2 discharge over the ground, realize drainage function.
The LED adjusting control circuits that the present embodiment provides, the height in LED brightness adjustment controls is realized by above-mentioned principle respectively
Press startup function and drainage function；Compared with prior art, the present embodiment employ less component realize drainage function and
High voltage startup function, solve the problems, such as that component is more in the prior art.
Preferably, energy storage device is electric capacity.
Preferably, energy storage device is inductance.
Preferably, first switch pipe is PMOS transistor, and second switch pipe is PMOS transistor.
In specific practical application, energy storage device can be the connected applications of electric capacity, inductance, or both；Can root
Depending on its specific application environment, it is not specifically limited herein.
Another embodiment of the utility model additionally provides another LED adjusting control circuit, is dimmed referring to Fig. 3, the LED
Control circuit includes：Control chip 201, module of releasing 202 and high voltage startup module 203；
Wherein, module of releasing 202 includes：
One end receives line voltage Vbus first resistor R1；
The first switch pipe M1 that first end is connected with the first resistor R1 other ends；First switch pipe M1 the second end and control
The pin bleeder that releases of chip 201 is connected；First switch pipe M1 control terminal and the bias pin bias of control chip 201
It is connected；
High voltage startup module 203 includes：
The diode D that anode is connected with first switch pipe M1 the second end；
The energy storage device 231 that one end is connected with diode D negative electrodes；The other end ground connection of energy storage device 231；Diode D is cloudy
Pole is connected with the tie point of energy storage device 231 with the power pins vcc of control chip 201.
The LED adjusting control circuits that the present embodiment provides, mould of releasing is formed by first resistor R1 and first switch pipe M1
Block 202, realize the drainage function in LED brightness adjustment controls；High voltage startup module 203 is formed by diode D and energy storage device 231,
Charged by first switch pipe M1 the second end by diode D for energy storage device 231, be the power pins vcc of control chip 201
Power supply is provided, to realize high voltage startup function；Compared with prior art, the present embodiment, which employs less component and realized, releases
Function and high voltage startup function, solve the problems, such as that component is more in the prior art.
Preferably, energy storage device is electric capacity.
Preferably, energy storage device is inductance.
Preferably, first switch pipe is PMOS transistor.
In specific practical application, energy storage device can be the connected applications of electric capacity, inductance, or both；Can root
Depending on its specific application environment, it is not specifically limited herein.
Preferably, on above-described embodiment and Fig. 3 basis, referring to Fig. 4, LED adjusting control circuits also include：
One end receives line voltage Vbus second resistance R2；The second resistance R2 other end and the biasing of control chip 201
Pin bias tie point is connected；
The electric capacity C that one end is connected with the bias pin bias of control chip 201 tie point；Electric capacity C other end ground connection.
In the present embodiment, line voltage Vbus is connected by second resistance R2 with the bias pin bias of control chip 201, control
The bias pin bias of coremaking piece 201 provides a bias voltage for first switch pipe M1 control terminal, and electric capacity C is used for voltage stabilizing.
Before the startup of control chip 201, the second ends of first switch pipe M1 receive the height electricity for pin bleeder outputs of releasing
Position voltage, now the high-potential voltage charged by diode D to energy storage device 231, when the voltage on energy storage device 231 reaches
After setting value inside control chip 201, control chip 201 starts.
Drive signal is generated according to system requirements after the normal work of control chip 201, and then passes through the pin bleeder that releases
The low-potential voltage of output drags down first switch pipe M1 the second terminal voltage, first switch pipe M1 conductings so that line voltage Vbus
Discharged over the ground by first resistor R1 and first switch pipe M1, realize drainage function.Now, due to diode D presence, control
The power pins vcc of chip 201 is powered by energy storage device 231, maintains control chip 201 to work required voltage.
Preferably, on above-described embodiment and Fig. 3 and Fig. 4 basis, referring to Fig. 5, control chip 201 includes：
The voltage-regulator diode D0 of plus earth；Bias pin of the voltage-regulator diode D0 negative electrode as control chip 201
bias；
Second switch pipe M2 of the first end as the pin bleeder that releases of control chip 201；The of second switch pipe M2
Two ends are grounded.
Preferably, second switch pipe M2 is PMOS transistor.
The bias pin bias of control chip 201 voltage, should by the voltage-regulator diode D0 clampers inside control chip 201
Clamp voltage input first switch pipe M1 control terminal, provide bias voltage for first switch pipe M1 and keep stable.
Second switch pipe M2 control terminals inside control chip 201 receive drive signal, are used for driving first to open after conducting
Close pipe M1.During 201 normal work of control chip, when control chip 201 detects that system needs drainage function to act on, in chip
Portion, which produces drive signal, turns on second switch pipe M2, and second switch pipe M2 conducting has dragged down the second ends of first switch pipe M1
Voltage so that first switch pipe M1 is turned on, and line voltage Vbus passes through first resistor R1, first switch pipe M1 and second switch pipe M2
Discharge over the ground, realize drainage function.
Each embodiment is described by the way of progressive in the utility model, what each embodiment stressed be and its
The difference of his embodiment, between each embodiment identical similar portion mutually referring to.For dress disclosed in embodiment
For putting, because it is corresponded to the method disclosed in Example, so description is fairly simple, related part is referring to method part
Explanation.
It the above is only preferred embodiment of the present utility model, make skilled artisans appreciate that or realizing this practicality
It is new.A variety of modifications to these embodiments will be apparent to one skilled in the art, defined herein
General Principle can be realized in other embodiments in the case where not departing from spirit or scope of the present utility model.Therefore,
The utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein and new
The consistent most wide scope of clever feature.
Claims (10)
1. a kind of LED adjusting control circuits, it is characterised in that comprise at least：Module of releasing and high voltage startup module；Wherein, institute
Stating module of releasing includes：
One end receives the first resistor of line voltage；
The first switch pipe that first end is connected with the first resistor other end；Second end of the first switch pipe passes through second
Switching tube is grounded；The control termination bias voltage of the first switch pipe；
The high voltage startup module includes：
The diode that anode is connected with the second end of the first switch pipe；
The energy storage device that one end is connected with the diode cathode；The other end ground connection of the energy storage device；
Wherein, the module of releasing shares the first switch pipe with the high voltage startup module.
2. LED adjusting control circuits according to claim 1, it is characterised in that the energy storage device is electric capacity.
3. LED adjusting control circuits according to claim 1, it is characterised in that the energy storage device is inductance.
4. LED adjusting control circuits according to claim 1, it is characterised in that the first switch pipe is PMOS crystal
Pipe；The second switch pipe is PMOS transistor.
A kind of 5. LED adjusting control circuits, it is characterised in that including：Control chip, module of releasing and high voltage startup module；Its
In, the module of releasing includes：
One end receives the first resistor of line voltage；
The first switch pipe that first end is connected with the first resistor other end；Second end of the first switch pipe and the control
The pin of releasing of coremaking piece is connected；The control terminal of the first switch pipe is connected with the bias pin of the control chip；
The high voltage startup module includes：
The diode that anode is connected with the pin of releasing of the control chip；
The energy storage device that one end is connected with the diode cathode；The other end ground connection of the energy storage device；The diode is cloudy
Pole is connected with the tie point of the energy storage device with the power pins of the control chip.
6. LED adjusting control circuits according to claim 5, it is characterised in that the energy storage device is electric capacity.
7. LED adjusting control circuits according to claim 5, it is characterised in that the energy storage device is inductance.
8. LED adjusting control circuits according to claim 5, it is characterised in that the first switch pipe is PMOS crystal
Pipe.
9. according to any described LED adjusting control circuits of claim 5 to 8, it is characterised in that also include：
One end receives the second resistance of the line voltage；The bias pin of the other end of the second resistance and the control chip
It is connected；
The electric capacity that one end is connected with the tie point of the bias pin of the control chip；The other end ground connection of the electric capacity.
10. according to any described LED adjusting control circuits of claim 5 to 8, it is characterised in that the control chip includes：
The voltage-regulator diode of plus earth；Bias pin of the negative electrode of the voltage-regulator diode as the control chip；
Second switch pipe of the first end as the pin of releasing of the control chip；The second end ground connection of the second switch pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720387567.8U CN206629308U (en) | 2017-04-13 | 2017-04-13 | A kind of LED adjusting control circuits |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720387567.8U CN206629308U (en) | 2017-04-13 | 2017-04-13 | A kind of LED adjusting control circuits |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206629308U true CN206629308U (en) | 2017-11-10 |
Family
ID=60205212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720387567.8U Withdrawn - After Issue CN206629308U (en) | 2017-04-13 | 2017-04-13 | A kind of LED adjusting control circuits |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206629308U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106879125A (en) * | 2017-04-13 | 2017-06-20 | 上海新进半导体制造有限公司 | A kind of LED adjusting control circuits |
-
2017
- 2017-04-13 CN CN201720387567.8U patent/CN206629308U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106879125A (en) * | 2017-04-13 | 2017-06-20 | 上海新进半导体制造有限公司 | A kind of LED adjusting control circuits |
| CN106879125B (en) * | 2017-04-13 | 2018-07-10 | 上海新进半导体制造有限公司 | A kind of LED adjusting control circuits |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103312144B (en) | Active-control valley fill circuit and control method thereof | |
| CN103532353B (en) | The bootstrapping with high negative voltage is powered MOSFET/IGBT driver circuit | |
| CN201898330U (en) | Reverse-connection-preventive circuit | |
| CN102711306B (en) | Impact current eliminating circuit | |
| CN206294070U (en) | A kind of electric capacity quick discharging circuit | |
| CN105720817A (en) | PFC soft switching circuit of BOOST circuit | |
| CN206264885U (en) | Automobile front | |
| CN106533144B (en) | Anti-reverse and current flowing backwards circuit | |
| CN206629308U (en) | A kind of LED adjusting control circuits | |
| CN203377778U (en) | Active control valley-fill circuit | |
| CN208971480U (en) | The DC power supply switch circuit that can be rapidly switched off and the electronic equipment using it | |
| CN106879125B (en) | A kind of LED adjusting control circuits | |
| CN207853533U (en) | A kind of power supply circuit | |
| CN207304498U (en) | A kind of inverse E class power amplification circuits | |
| CN206524760U (en) | A kind of power initiation system for high withstand voltage eclipsed form DC DC converters | |
| CN108711918A (en) | A kind of switched charge circuit | |
| CN204598412U (en) | A kind of LED drive power soft starting circuit | |
| CN104981065A (en) | LED drive device with valley fill circuit | |
| CN105898937B (en) | A kind of circuit of compatible driving LED lamp tube and fluorescent lamp tube | |
| CN209151406U (en) | The protection circuit of low ripple LED control device | |
| CN207166838U (en) | A kind of backlight constant current drive circuit | |
| CN208707993U (en) | A kind of driving circuit for automobile lamp list lamp | |
| CN202797902U (en) | Short circuit protection circuit used for booster circuit | |
| CN208971166U (en) | A kind of switched charge chip and electronic equipment | |
| CN206894607U (en) | A kind of negative pressure automatic biasing PIN switch drivers |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20171110 Effective date of abandoning: 20180710 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20171110 Effective date of abandoning: 20180710 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |