CN205196014U - LED drive arrangement with circuit joins conversely corrects function - Google Patents
LED drive arrangement with circuit joins conversely corrects function Download PDFInfo
- Publication number
- CN205196014U CN205196014U CN201521057932.6U CN201521057932U CN205196014U CN 205196014 U CN205196014 U CN 205196014U CN 201521057932 U CN201521057932 U CN 201521057932U CN 205196014 U CN205196014 U CN 205196014U
- Authority
- CN
- China
- Prior art keywords
- order wire
- nand gate
- communication chip
- pull
- 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.)
- Expired - Fee Related
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
- Dc Digital Transmission (AREA)
Abstract
The utility model discloses a LED drive arrangement with circuit joins conversely corrects function, it is including the pull -up resistance R1 who is used for making order wire A input high level during the free time, a pull down resistor R2 for making input low level when order wire B is idle, when being used for order wire A and order wire B and communication chip to join conversely, inputing order wire A and order wire B to control module's signal and carry out inphase opposition received signal correction circuit, and when being used for order wire A and order wire B to join conversely with communication chip, the signal of inputing control module order wire A and order wire B carries out the inphase opposition correction circuit of sending a signal, pull -up resistance R1 is connected with order wire A and communication chip respectively, and pull down resistor R2 is connected with order wire B and communication chip respectively, received signal corrects the circuit and is connected with communication chip and control module respectively with the correction circuit of sending a signal.
Description
Technical field
The utility model still can normally receive after relating to line reversal, the LED drive device with line reversal correction function of signal occurs.
Background technology
Along with the high speed development in city, increasing city starts to make smart city, as smart city wherein most important component; And light and show multiple lamp light effect carrying out urban look lamp, need the communication realizing between iversion controller and host computer by LED drive module; If connect iversion controller to occur that (being normally connected is that the A port of iversion controller is connected with the A port of LED drive module, and the A port of iversion controller is connected with the A port of LED drive module in reversal connection with the order wire A of LED drive module with order wire B; Reversal connection here refers to the A port of iversion controller and the B port of LED drive module, and the B port of iversion controller is connected with the A port of LED drive module), then just cannot realize normal communication between iversion controller and host computer.When proper communication can not be carried out, need to investigate one by one the entirety of urban look lamp, connect anti-phase LED drive module until find, then re-start line; Make maintenance trouble and keep in repair to require a great deal of time, make the labour intensity of workman large; Whole urban look lamp also can be made when proper communication can not be carried out to lose lighting effects, cause significant impact to city integral image.
Utility model content
For above-mentioned deficiency of the prior art, the LED drive device of line reversal corrects function that what the utility model provided have can when order wire A and order wire B reversal connection, by Received signal strength correction circuit with send correction form signals circuit and carry out automatically carrying out anti-phase to the level of order wire A and order wire B.
In order to reach foregoing invention object, the technical solution adopted in the utility model is:
There is provided a kind of and have the LED drive device that line reversal corrects function, it comprises:
The pull-up resistor R1 of input high level during for making order wire A idle;
The pull down resistor R2 of input low level during for making order wire B idle;
During for order wire A and order wire B and communication chip reversal connection, signal order wire A and order wire B being inputed to control module carries out anti-phase Received signal strength correction circuit; And
During for order wire A and order wire B and communication chip reversal connection, the signal of control module input communication line A and order wire B is carried out anti-phase transmission correction form signals circuit;
Pull-up resistor R1 is connected with order wire A and communication chip respectively, and pull down resistor R2 is connected with order wire B and communication chip respectively; Received signal strength correction circuit is connected with communication chip and control module respectively with transmission correction form signals circuit.
The beneficial effects of the utility model are: when reversal connection appears in the order wire A and order wire B that connect iversion controller and network chip: if signal mails to control module, control module is to Received signal strength correction circuit order wire A and order wire B reversal connection signal, and Received signal strength correction circuit is then by anti-phase for the incoming level of order wire A and order wire B rear input; If when signal is sent by control module, control module is given and is sent correction form signals circuit order wire A and order wire B reversal connection signal, send correction form signals circuit then by anti-phase for the output level of order wire A and order wire B rear output, thus ensure that the proper communication of iversion controller and host computer.
Moreover, the setting of Received signal strength correction circuit and transmission correction form signals circuit, workman no longer worries the proper communication affecting iversion controller and host computer due to order wire A and order wire B reversal connection when wiring, or the cost plenty of time overhauls, and improves the installation effectiveness of circuit; Meanwhile, also assures that the normal work of urban look system.
Accompanying drawing explanation
Fig. 1 has the theory diagram that line reversal corrects the LED drive device of function.
Fig. 2 has the circuit diagram that line reversal corrects a LED drive device embodiment of function.
Embodiment
Below embodiment of the present utility model is described; so that those skilled in the art understand the utility model; but should be clear; the utility model is not limited to the scope of embodiment; to those skilled in the art; as long as various change to limit and in the spirit and scope of the present utility model determined, these changes are apparent, and all innovation and creation utilizing the utility model to conceive are all at the row of protection in appended claim.
Show with reference to figure 1, Fig. 1 and there is the theory diagram that line reversal corrects the LED drive device of function; As shown in Figure 1, the pull-up resistor R1 of input high level when this LED drive device with line reversal correction function comprises for making order wire A idle; The pull down resistor R2 of input low level during for making order wire B idle; During for order wire A and order wire B and communication chip reversal connection, signal order wire A and order wire B being inputed to control module carries out anti-phase Received signal strength correction circuit;
And during for order wire A and order wire B and communication chip reversal connection, the signal of control module input communication line A and order wire B is carried out anti-phase transmission correction form signals circuit; Pull-up resistor R1 is connected with order wire A and communication chip respectively, and pull down resistor R2 is connected with order wire B and communication chip respectively; Received signal strength correction circuit is connected with communication chip and control module respectively with transmission correction form signals circuit.
Pull-up resistor R1 wherein is also connected with input voltage, that end ground connection that pull down resistor R2 is not connected with order wire A and communication chip.
In an embodiment of the present utility model, this LED drive device with line reversal correction function also comprises input protection circuit, and input protection circuit is connected with order wire A, order wire B, pull-up resistor R1, pull down resistor R2 and communication chip respectively.Input protection circuit can avoid electric current increase suddenly and affect the normal transmission of signal, and the surge current that circuit produces can also be avoided to affect the normal transmission of signal.
In an embodiment of the present utility model, preferred input protection circuit comprises shunt circuit and anti-surge protection circuit, and shunt circuit is connected with order wire A, order wire B, anti-surge protection circuit, pull-up resistor R1, pull down resistor R2 and communication chip respectively; Anti-surge protection circuit is connected with pull-up resistor R1, pull down resistor R2 and communication chip respectively.
With reference to figure 2, preferred shunt circuit comprises the first shunt resistance R3 be connected with pull-up resistor R1, order wire A and communication chip respectively and the second shunt resistance R4 be connected with pull down resistor R2, order wire B and communication chip respectively.
Anti-surge protection circuit comprises the first diode D1 that negative pole is connected with pull-up resistor R1, order wire A, communication chip and the first shunt resistance R3 respectively and the second diode that negative pole is connected with pull down resistor R2, order wire B, communication chip and the second shunt resistance R4 respectively; The positive pole of the first diode D1, the second diode D2 positive pole and communication chip equal ground connection of pin.
Refer again to Fig. 2, Received signal strength correction circuit wherein at least comprises the first NAND gate NAND1, the second NAND gate NAND2, the 3rd NAND gate NAND3 and the 4th NAND gate NAND4, the first NAND gate NAND1 and is connected with control module, the second NAND gate NAND2 and the 4th NAND gate NAND4 respectively; 4th NAND gate NAND4 is connected with control module and communication chip respectively, and the 3rd NAND gate NAND3 is connected with the second NAND gate NAND2 and communication chip respectively, and the second NAND gate NAND2 wherein is also connected with control module.
Send correction form signals circuit and at least comprise the 5th NAND gate NAND5, the 6th NAND gate NAND6, the 7th NAND gate NAND7 and the 8th NAND gate NAND8,5th NAND gate NAND5, the 6th NAND gate NAND6 are all connected with control module with the 8th NAND gate NAND8,8th NAND gate NAND8 is connected with the 5th NAND gate NAND5 and the 7th NAND gate NAND7 respectively, and the 7th NAND gate NAND7 is connected with the 6th NAND gate NAND6 and communication chip respectively.
Tie the operation of Fig. 2 to control module output communication line A and order wire B reversal connection signal to be below described:
Before installing, control module is arranged, represent when being arranged to RXD pin input high level or low level that signal can transmit normally, if after being greater than setting-up time (can arrange voluntarily according to the actual conditions of Landscape Lamp system works), what RXD pin still exported is that low level represents that signal can not transmit normally, when there is this situation, show order wire A and order wire B reversal connection, need to Received signal strength correction circuit or send the signal that one, correction form signals circuit carries out order wire A and order wire B reversal connection correction, namely control module is to CK-AB-0 pin output low level, high level 1 is exported to CK-AB-1 pin.
In sum, by pull-up resistor R1, pull down resistor R2, Received signal strength correction circuit, send cooperatively interacting of correction form signals circuit and control module, just can when order wire A and order wire B reversal connection, the automatic incoming level to order wire A and order wire B and output level are corrected automatically, thus ensure that the normal transmission of signal.
Claims (6)
1. there is the LED drive device that line reversal corrects function, it is characterized in that, comprising:
The pull-up resistor R1 of input high level during for making order wire A idle;
The pull down resistor R2 of input low level during for making order wire B idle;
During for order wire A and order wire B and communication chip reversal connection, signal order wire A and order wire B being inputed to control module carries out anti-phase Received signal strength correction circuit; And
During for order wire A and order wire B and communication chip reversal connection, the signal of control module input communication line A and order wire B is carried out anti-phase transmission correction form signals circuit;
Described pull-up resistor R1 is connected with described order wire A and described communication chip respectively, and described pull down resistor R2 is connected with described order wire B and described communication chip respectively; Described Received signal strength correction circuit is connected with described communication chip and control module respectively with transmission correction form signals circuit.
2. according to claim 1 have the LED drive device that line reversal corrects function; it is characterized in that; also comprise input protection circuit, described input protection circuit is connected with order wire A, order wire B, pull-up resistor R1, pull down resistor R2 and communication chip respectively.
3. according to claim 2 have the LED drive device that line reversal corrects function, it is characterized in that, described input protection circuit comprises shunt circuit and anti-surge protection circuit, and described shunt circuit is connected with order wire A, order wire B, anti-surge protection circuit, pull-up resistor R1, pull down resistor R2 and communication chip respectively; Described anti-surge protection circuit is connected with pull-up resistor R1, pull down resistor R2 and communication chip respectively.
4. according to claim 3 have the LED drive device that line reversal corrects function, it is characterized in that, described shunt circuit comprises the first shunt resistance R3 be connected with pull-up resistor R1, order wire A and communication chip respectively and the second shunt resistance R4 be connected with pull down resistor R2, order wire B and communication chip respectively;
Described anti-surge protection circuit comprises the first diode D1 that negative pole is connected with pull-up resistor R1, order wire A, communication chip and the first shunt resistance R3 respectively and the second diode that negative pole is connected with pull down resistor R2, order wire B, communication chip and the second shunt resistance R4 respectively; The positive pole of described first diode D1, the second diode D2 positive pole and communication chip equal ground connection of pin.
5. according to the arbitrary described LED drive device with line reversal correction function of claim 1-4, it is characterized in that, described Received signal strength correction circuit at least comprises the first NAND gate NAND1, the second NAND gate NAND2, the 3rd NAND gate NAND3 and the 4th NAND gate NAND4, the first NAND gate NAND1 and is connected with control module, the second NAND gate NAND2 and the 4th NAND gate NAND4 respectively; Described 4th NAND gate NAND4 is connected with control module and communication chip respectively, and described 3rd NAND gate NAND3 is connected with the second NAND gate NAND2 and communication chip respectively.
6. according to the arbitrary described LED drive device with line reversal correction function of claim 1-4, it is characterized in that, described transmission correction form signals circuit at least comprises the 5th NAND gate NAND5, 6th NAND gate NAND6, 7th NAND gate NAND7 and the 8th NAND gate NAND8, described 5th NAND gate NAND5, 6th NAND gate NAND6 is all connected with control module with the 8th NAND gate NAND8, described 8th NAND gate NAND8 is connected with described 5th NAND gate NAND5 and the 7th NAND gate NAND7 respectively, described 7th NAND gate NAND7 is connected with described 6th NAND gate NAND6 and communication chip respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521057932.6U CN205196014U (en) | 2015-12-18 | 2015-12-18 | LED drive arrangement with circuit joins conversely corrects function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521057932.6U CN205196014U (en) | 2015-12-18 | 2015-12-18 | LED drive arrangement with circuit joins conversely corrects function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205196014U true CN205196014U (en) | 2016-04-27 |
Family
ID=55788948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521057932.6U Expired - Fee Related CN205196014U (en) | 2015-12-18 | 2015-12-18 | LED drive arrangement with circuit joins conversely corrects function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205196014U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112114276A (en) * | 2020-07-10 | 2020-12-22 | 青岛海信电子产业控股股份有限公司 | Control circuit, control panel, electric equipment and control method |
| CN112202442A (en) * | 2020-07-10 | 2021-01-08 | 青岛海信电子产业控股股份有限公司 | Control circuit, control panel, electric equipment and control method |
-
2015
- 2015-12-18 CN CN201521057932.6U patent/CN205196014U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112114276A (en) * | 2020-07-10 | 2020-12-22 | 青岛海信电子产业控股股份有限公司 | Control circuit, control panel, electric equipment and control method |
| CN112202442A (en) * | 2020-07-10 | 2021-01-08 | 青岛海信电子产业控股股份有限公司 | Control circuit, control panel, electric equipment and control method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203455642U (en) | Multi-sensor control circuit | |
| CN205196014U (en) | LED drive arrangement with circuit joins conversely corrects function | |
| CN203299316U (en) | Line sequence detector | |
| CN205142257U (en) | 485 communication interface circuit of two compatible opto -couplers and control of three opto -couplers | |
| CN109343396A (en) | A kind of and machine CAN build-out resistor automatic identification circuit | |
| CN102143268B (en) | Mobile phone | |
| CN102185805B (en) | M-BUS (Meter-Bus) driving circuit | |
| CN204190740U (en) | A kind of one wire system serial interface circuit | |
| CN204389963U (en) | A kind of control circuit and controller | |
| CN208766506U (en) | A kind of and machine CAN build-out resistor automatic identification circuit and CAN and machine equipment | |
| CN104660247A (en) | Two-way interface circuit | |
| CN114124613B (en) | Industrial 485 networking system capable of preventing competition and control method thereof | |
| CN203492004U (en) | Photoelectric isolation protection circuit of RS485 bus | |
| CN109445505A (en) | A kind of bus-powered circuit of DALI | |
| CN202025203U (en) | Feeding type communication circuit | |
| CN205610628U (en) | A signal transceiver circuits for flight controller | |
| CN105629832B (en) | It is a kind of to automatically switch isolation circuit and method without transmitting-receiving control terminal RS485 transmitting-receiving | |
| CN204557147U (en) | A kind of network equipment serial ports system based on wireless communication technique | |
| CN205945733U (en) | Direct current carrier communication's two bus circuit structures | |
| CN104375966A (en) | Isolation control device and isolation control method for processor interface | |
| CN109639441A (en) | A method of realizing that power consumption adjusts in real time based on business board | |
| CN205093019U (en) | RS485 communication circuit and DMX controller and control system | |
| CN204481787U (en) | A kind of bidirectional interface circuit | |
| CN106250344A (en) | A kind of asynchronous serial communication circuit and the means of communication | |
| CN204887598U (en) | From seven various pointolites of error correction LED |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160427 Termination date: 20191218 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |