CN117500106A - Electronic ballast with IIC digital interface - Google Patents

Electronic ballast with IIC digital interface Download PDF

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Publication number
CN117500106A
CN117500106A CN202310909523.7A CN202310909523A CN117500106A CN 117500106 A CN117500106 A CN 117500106A CN 202310909523 A CN202310909523 A CN 202310909523A CN 117500106 A CN117500106 A CN 117500106A
Authority
CN
China
Prior art keywords
iic
circuit
electronic ballast
mcu
digital interface
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.)
Pending
Application number
CN202310909523.7A
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Chinese (zh)
Inventor
李晓文
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Fuhuaming Electronic Technology Co ltd
Original Assignee
Beijing Fuhuaming Electronic Technology Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Beijing Fuhuaming Electronic Technology Co ltd filed Critical Beijing Fuhuaming Electronic Technology Co ltd
Priority to CN202310909523.7A priority Critical patent/CN117500106A/en
Publication of CN117500106A publication Critical patent/CN117500106A/en
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/36—Controlling
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/02—Details
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements

Abstract

The utility model relates to the technical field of electronic ballasts, in particular to an electronic ballast with an IIC digital interface, which comprises an electronic ballast power circuit controlled by an MCU, an IIC communication control MCU circuit and an IIC digital interface circuit, wherein the electronic ballast power circuit controlled by the MCU is in communication connection with the IIC communication control MCU circuit, the IIC communication control MCU circuit is in communication connection with the IIC digital interface circuit, the IIC digital interface circuit is in communication connection with an external IIC main control device, and the IIC communication control MCU circuit and the IIC digital interface circuit can be respectively connected with a plurality of MCU-controlled electronic ballast power circuits and the external IIC main control device so as to realize a one-master-multiple-slave system networking structure and a multi-master-multiple-slave system networking structure.

Description

Electronic ballast with IIC digital interface
Technical Field
The utility model relates to the technical field of electronic ballasts, in particular to an electronic ballast with an IIC digital interface.
Background
The DALI digital control system adopts special DALI protocol to specify that the digital signal is transmitted by Manchester code, and the signal transmission rate is 1200bps; because the bus has half-duplex two-way communication function and each DALI device has an independent address code, the DALI main control unit can not only output control instructions to each networking intelligent device, but also receive state information feedback of each networking intelligent device, for example, the publication number is CN201917824U, and the utility model patent is an intelligent household light digital control system.
However, the DALI digital control system is generally applied to dimming control of fluorescent lamp electronic ballasts and LED drivers, and because the digital signals are transmitted by using the manchester codes, the DALI master control device, the slave fluorescent lamp electronic ballasts and the LED drivers need to be configured with more complex manchester code decoding digital interface circuits, and conventionally, a one-master multi-slave system networking structure is adopted, so that the multi-master multi-slave structure is difficult to realize.
Disclosure of Invention
Therefore, the present utility model is directed to an electronic ballast with an IIC digital interface, so as to solve the problem that the existing DALI digital control system is difficult to implement a multi-master multi-slave system networking structure.
Based on the above object, the utility model provides an electronic ballast with an IIC digital interface, which comprises an electronic ballast power circuit controlled by an MCU, an IIC communication control MCU circuit and an IIC digital interface circuit, wherein the electronic ballast power circuit controlled by the MCU is in communication connection with the IIC communication control MCU circuit, the IIC communication control MCU circuit is in communication connection with the IIC digital interface circuit, the IIC digital interface circuit is in communication connection with an external IIC main control device, the electronic ballast power circuit controlled by the MCU is used for providing required control management functions for starting, normal operation, dimming control and fault protection performance of a lamp tube, and timely collecting and storing state information in a main power circuit of the electronic ballast, the IIC communication control MCU circuit is used for executing an IIC protocol, and constructing digital communication functions between the IIC communication control MCU circuit and the electronic ballast power circuit controlled by the MCU circuit and between the IIC communication control MCU circuit and the external IIC main control device, the external IIC main control device is used for realizing programming instruction control, electronic state information inquiry display and fault reporting functions, and the IIC communication control device, and the IIC communication control MCU circuit and the digital ballast main control device can be connected with a plurality of slave-to the digital ballast main control circuits of the plurality of slave-control systems, and the digital ballast main control circuits can realize multiple slave-control systems.
Preferably, an electrical safety isolation is arranged between the MCU controlled electronic ballast power circuit and the IIC communication control MCU circuit.
Preferably, the electrical safety isolation is one of an optocoupler circuit or a transformer circuit.
Preferably, the external program instruction is transmitted to the IIC digital interface circuit through the external IIC main control equipment, and is transmitted to the electronic ballast power circuit controlled by the MCU after being processed by the data of the IIC communication control MCU circuit, and the existing technical parameters of the preheating frequency, the preheating time, the working frequency and the lamp voltage characteristic in the electronic ballast power circuit controlled by the MCU are changed, so that the suitability between the electronic ballast power circuit controlled by the MCU and different types of lamp tubes is improved.
Preferably, the related voltage and current signals are sampled by an electronic ballast power circuit controlled by an MCU and then transmitted to an IIC communication control MCU circuit for processing, so as to form relevant information of lamp voltage, lamp current, working time and EOL fault, and then the IIC communication control MCU circuit is used for encoding and transmitting the information to an external IIC main control device through an IIC digital interface circuit, so that the working state of a single electronic ballast is monitored, and the fault reason of the system is inquired in time.
Preferably, the IIC digital interface circuit takes the form of a standard RJ-11 interface.
Preferably, the IIC digital interface circuit includes a power positive line, a ground line, an I2C data line, an I2C clock line, and an interrupt signal line, where the I2C data line and the I2C clock line are used to execute an IIC communication protocol to transmit data between the interconnection interfaces, the interrupt signal line is used to inform the IIC communication control MCU circuit and the external IIC main control device to perform interrupt request and interrupt processing, and the power positive line and the ground line are used to supply power to the external IIC main control device.
Preferably, the external IIC main control device is one or more of a computer, a dimming controller and a scene setting platform.
The utility model has the beneficial effects that: by following the IIC communication protocol, the IIC digital communication function is realized between MCU chips used in the electronic ballast, and between the MCU chips in the electronic ballast and the external master control equipment, and the IIC digital communication control principle originally used between the control chips of all functional modules of the integrated circuit is popularized to the intelligent illumination control system, so that the networking flexibility of the intelligent illumination management system is improved, and the system networking structure of one master, multiple slaves and multiple masters and multiple slaves can be easily realized.
Drawings
In order to more clearly illustrate the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only of the utility model and that other drawings can be obtained from them without inventive effort for a person skilled in the art.
FIG. 1 is a schematic workflow diagram of an overall embodiment of the present utility model;
fig. 2 is a schematic diagram of a single electronic ballast programming control workflow in accordance with an embodiment of the present utility model;
fig. 3 is a schematic diagram of a working flow of a single electronic ballast for working state monitoring and fault automatic fault reporting according to an embodiment of the present utility model;
fig. 4 is a schematic diagram of an application architecture of an electronic ballast with an IIC digital interface in system networking according to an embodiment of the present utility model;
fig. 5 is a schematic circuit diagram of an electronic ballast with an IIC digital interface according to an embodiment of the present utility model;
FIG. 6 is a schematic diagram of the circuit principle of the MCU circuit for IIC communication control according to the embodiment of the utility model;
fig. 7 is a schematic circuit diagram of an IIC digital interface circuit according to an embodiment of the utility model.
Marked in the figure as:
1. an MCU controlled electronic ballast power circuit; 2. IIC communication control MCU circuit; 3. IIC digital interface circuit; 4. external IIC main control equipment.
Detailed Description
The present utility model will be further described in detail with reference to specific embodiments in order to make the objects, technical solutions and advantages of the present utility model more apparent.
It is to be noted that unless otherwise defined, technical or scientific terms used herein should be taken in a general sense as understood by one of ordinary skill in the art to which the present utility model belongs. The terms "first," "second," and the like, as used herein, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.
As shown in fig. 1 to 7, an electronic ballast with an IIC digital interface includes an electronic ballast power circuit 1 controlled by an MCU, an IIC communication control MCU circuit 2 and an IIC digital interface circuit 3, the electronic ballast power circuit 1 controlled by the MCU is in communication connection with the IIC communication control MCU circuit 2, the IIC communication control MCU circuit 2 is in communication connection with the IIC digital interface circuit 3, the IIC digital interface circuit 3 is in communication connection with an external IIC main control device 4, the electronic ballast power circuit 1 controlled by the MCU is used for providing required control management functions for starting, normal operation, dimming control and fault protection performance of a lamp tube, and timely storing state information in a main power circuit of the electronic ballast, the IIC communication control MCU circuit 2 is used for executing an IIC protocol, digital communication functions between the IIC communication control MCU circuit 2 and the MCU circuit 1 and between the IIC communication control MCU circuit 2 and the external IIC main control device 4 are built, the external IIC main control device 4 is used for realizing programming instruction control, electronic state information query and fault indication, and multiple main control functions can be realized by multiple groups of the MCU circuits 3 and the digital ballast power circuits 3.
As an alternative embodiment, an electrical safety isolation is provided between the MCU-controlled electronic ballast power circuit 1 and the IIC communication control MCU circuit 2.
As an alternative embodiment, the electrical safety isolation is one of an optocoupler circuit or a transformer circuit.
As an alternative embodiment, as shown in fig. 2, external program instructions are transmitted to the IIC digital interface circuit 3 through the external IIC main control device 4, and after being processed by the data of the IIC communication control MCU circuit 2, the external program instructions are sent to the MCU-controlled electronic ballast power circuit 1, so as to change the existing technical parameters of preheating frequency, preheating time, working frequency and lamp voltage in the MCU-controlled electronic ballast power circuit 1, so as to improve the adaptability between the MCU-controlled electronic ballast power circuit 1 and different types of lamps.
As an alternative embodiment, as shown in fig. 3, related voltage and current signals are sampled by the electronic ballast power circuit 1 controlled by the MCU and then transmitted to the IIC communication control MCU circuit 2 for processing, so as to form relevant information of lamp voltage, lamp current, operating time and EOL fault, and then the relevant information is encoded by the IIC communication control MCU circuit 2 and then transmitted to the external IIC main control device 4 through the IIC digital interface circuit 3, so that the operating state of a single electronic ballast is monitored, and the cause of system fault is timely queried.
As an alternative embodiment, the IIC digital interface circuit 3 takes the form of a standard RJ-11 interface.
By way of example, the interconnection between the electronic ballast and a plurality of external control, display and alarm function modules using physical interface standards including, but not limited to, RJ11/RJ45 can be achieved by using standard RJ-11 interface circuits that are simple and reliable in design.
As an alternative embodiment, the IIC digital interface circuit 3 includes a power positive line, a ground line, an I2C data line, an I2C clock line, and an interrupt signal line, where the I2C data line and the I2C clock line are used to execute the IIC communication protocol to transmit data between the interconnection interfaces, and the interrupt signal line is used to inform the IIC communication control MCU circuit 2 to perform interrupt request and interrupt processing with the external IIC main control device 4, and the power positive line and the ground line are used to supply power to the external IIC main control device 4.
As an optional embodiment, the external IIC main control device 4 is one or more of a computer, a dimming controller and a scene setting platform.
For example, as shown in fig. 3, centralized control over a plurality of electronic ballasts of the type is achieved by applying the IIC communication protocol, networking centralized control over a plurality of electronic ballasts with IIC digital interfaces is achieved by two data buses, namely a serial data line SDA and a serial clock line SCL, so that a one-to-many broadcast control function can be achieved, and a one-to-many grouping and one-to-one addressing control function can be achieved. The IIC bus has a small number of signal lines, and is composed of a data line SDA and a clock line SCL, and only two I/O pin ports of the chip are occupied, so that pin resources of the chip are saved. The flexibility of system networking can easily realize a system networking structure of one master and multiple slaves and multiple masters and multiple slaves.
Those of ordinary skill in the art will appreciate that: the discussion of any of the embodiments above is merely exemplary and is not intended to suggest that the scope of the utility model (including the claims) is limited to these examples; the technical features of the above embodiments or in the different embodiments may also be combined within the idea of the utility model, the steps may be implemented in any order and there are many other variations of the different aspects of the utility model as described above, which are not provided in detail for the sake of brevity.
The present utility model is intended to embrace all such alternatives, modifications and variances which fall within the broad scope of the appended claims. Therefore, any omission, modification, equivalent replacement, improvement, etc. of the present utility model should be included in the scope of the present utility model.

Claims (8)

1. The electronic ballast with the IIC digital interface is characterized by comprising an MCU controlled electronic ballast power circuit, an IIC communication control MCU circuit and an IIC digital interface circuit, wherein the MCU controlled electronic ballast power circuit is in communication connection with the IIC communication control MCU circuit, the IIC communication control MCU circuit is in communication connection with the IIC digital interface circuit, the IIC digital interface circuit is in communication connection with an external IIC main control device, the MCU controlled electronic ballast power circuit is used for providing required control management functions for starting, normal operation, dimming control and fault protection performance of a lamp tube, timely collecting and storing state information in the electronic ballast main power circuit, the IIC communication control MCU circuit is used for executing an IIC protocol, a digital communication function between the IIC communication control MCU circuit and the MCU controlled electronic ballast power circuit and between the IIC communication control MCU circuit and the external IIC main control device is built, the external IIC main control device is used for realizing programming instruction control, electronic ballast state information inquiry display and fault reporting functions, and the IIC communication control MCU circuit and the IIC main control device can be connected with a plurality of slave electronic ballasts and a plurality of slave electronic ballast main control systems respectively.
2. The electronic ballast with an IIC digital interface of claim 1, wherein an electrical safety isolation is provided between the MCU-controlled electronic ballast power circuit and the IIC communication control MCU circuit.
3. The electronic ballast with IIC digital interface as set forth in claim 2, wherein said electrical safety isolation is one of an optocoupler circuit or a transformer circuit.
4. The electronic ballast with the IIC digital interface according to claim 1, wherein external program instructions are transmitted to the IIC digital interface circuit through external IIC main control equipment, and after being processed by the data of the IIC communication control MCU circuit, the external program instructions are sent to the MCU control electronic ballast power circuit, and the existing technical parameters of the preheating frequency, the preheating time, the working frequency and the lamp voltage characteristic in the MCU control electronic ballast power circuit are changed, so that the suitability between the MCU control electronic ballast power circuit and different types of lamp tubes is improved.
5. The electronic ballast with the IIC digital interface according to claim 1, wherein related voltage and current signals are sampled by an electronic ballast power circuit controlled by an MCU and then transmitted to an IIC communication control MCU circuit for processing, so as to form relevant information of lamp voltage, lamp current, operating time and EOL faults, and the information is encoded by the IIC communication control MCU circuit and then transmitted to an external IIC main control device through the IIC digital interface circuit, so that the operating state of a single electronic ballast is monitored, and the cause of the system faults is timely inquired.
6. The electronic ballast with IIC digital interface of claim 1, wherein said IIC digital interface circuit takes the form of a standard RJ-11 interface.
7. The electronic ballast with IIC digital interface as set forth in claim 1, wherein the IIC digital interface circuit includes a power positive line, a ground line, an I2C data line, an I2C clock line, and an interrupt signal line, the I2C data line and the I2C clock line being used to perform the IIC communication protocol to transmit data between the interconnect interfaces, the interrupt signal line being used to inform the IIC communication control MCU circuit to perform interrupt request and interrupt processing with the external IIC main control device, the power positive line and the ground line being used to power the external IIC main control device.
8. The electronic ballast with IIC digital interface of claim 1, wherein the external IIC master control device is one or more of a computer, a dimmer controller and a scene setting platform.
CN202310909523.7A 2023-07-24 2023-07-24 Electronic ballast with IIC digital interface Pending CN117500106A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310909523.7A CN117500106A (en) 2023-07-24 2023-07-24 Electronic ballast with IIC digital interface

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310909523.7A CN117500106A (en) 2023-07-24 2023-07-24 Electronic ballast with IIC digital interface

Publications (1)

Publication Number Publication Date
CN117500106A true CN117500106A (en) 2024-02-02

Family

ID=89677075

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310909523.7A Pending CN117500106A (en) 2023-07-24 2023-07-24 Electronic ballast with IIC digital interface

Country Status (1)

Country Link
CN (1) CN117500106A (en)

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