CN203554746U - DALI signal transmit-receive circuit - Google Patents
DALI signal transmit-receive circuit Download PDFInfo
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- CN203554746U CN203554746U CN201320616086.1U CN201320616086U CN203554746U CN 203554746 U CN203554746 U CN 203554746U CN 201320616086 U CN201320616086 U CN 201320616086U CN 203554746 U CN203554746 U CN 203554746U
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- triode
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- 230000003287 optical effect Effects 0.000 abstract 3
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
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- IXSZQYVWNJNRAL-UHFFFAOYSA-N etoxazole Chemical compound CCOC1=CC(C(C)(C)C)=CC=C1C1N=C(C=2C(=CC=CC=2F)F)OC1 IXSZQYVWNJNRAL-UHFFFAOYSA-N 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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Abstract
The utility model discloses a DALI signal transmit-receive circuit comprising a first interface, a second interface, an emission end and a reception end, a first resistor, a first triode, a second triode, a third triode, a fourth resistor, a fifth resistor, an eighth resistor, a first optical coupler, a second optical coupler, a first capacitor, a sixth resistor, and a fourth diode; a collector electrode of the first triode, one end of the fifth resistor and an emission end of the third triode are connected with the first interface; a base electrode of the first triode is connected with one end of the sixth resistor and a pin 2 of the first optical coupler through the first resistor; an emission electrode of the first triode is connected with the second interface through the fourth resistor; the other end of the fifth resistor is connected with an emission electrode of the second triode and a base electrode of the third triode; a base electrode of the second triode is respectively connected with one end of the eighth resistor and a collector electrode of the third triode. The DALI signal transmit-receive circuit can receive and transmit the data on the DALI bus, and is simple in structure.
Description
Technical field
The utility model relates to intelligent control system field, relates in particular the DALI signal transmitting and receiving circuit in a kind of control command transmitting procedure.
Background technology
Digital addressable lighting interface agreement (being DALI agreement), it is a Data Transport Protocol, it has defined the communication mode between electric ballast and device controller, and there is simple in structure, easy for installation, processing ease, reliability is high and cheap.
When adopting DALI agreement to carry out control command transmission, must realize the command between DALI bus and microprocessor, be generally to adopt DALI signal transmitting and receiving circuit to carry out sending and receiving, but existing DALI signal transmitting and receiving circuit generally all have baroque shortcoming.
In view of this, the inventor, for the above-mentioned shortcoming further investigation of existing DALI signal transmitting and receiving circuit, has this case to produce then.
Utility model content
The purpose of this utility model is to provide a kind of DALI signal transmitting and receiving circuit, and it can be realized data in DALI bus are received and sent, but also has effect simple in structure.
In order to reach above-mentioned purpose, solution of the present utility model is:
A kind of DALI signal transmitting and receiving circuit, wherein, comprise first interface, the second interface, transmitting terminal and receiving terminal, the first resistance, the first triode, the second triode, the 3rd triode the 4th resistance, the 5th resistance, the 8th resistance, the first optocoupler, the second optocoupler, the first electric capacity, the 6th resistance and the 4th diode, this first triode is NPN type triode, this second triode and the 3rd triode are positive-negative-positive triode, this first optocoupler and the second optocoupler all adopt EL357, the collector electrode of this first triode, one end of the 5th resistance, the emitter of the 3rd triode is all connected with first interface, the base stage of this first triode is connected with one end of the 6th resistance and 2 pin of the first optocoupler by the first resistance, the emitter of this first triode is connected with the second interface by the 4th resistance, the other end of the 5th resistance is connected with the base stage of the 3rd triode with the emitter of the second triode, the base stage of this second triode is all connected with the collector electrode of the 3rd triode with one end of the 8th resistance, the other end of the 8th resistance is connected with the collector electrode of the second triode, the collector electrode of this second triode is also connected with 4 pin of the second optocoupler, 4 pin of this first optocoupler are connected with transmitting terminal, be connected 3 pin of this first optocoupler and power supply, 1 pin of this first optocoupler and 3 pin of the second optocoupler, one end of the first electric capacity is connected with the negative pole of the 4th diode, 1 pin of this second optocoupler is connected with receiving terminal, be connected 2 pin of this second optocoupler and power supply, the other end of the 6th resistance is all connected with the positive pole of the 4th diode with the other end of the first electric capacity.
Adopt after said structure, the utility model utilizes the conducting of the first triode, the second triode and the 3rd triode co-controlling DALI bus signals and closes, signal in this DALI bus is by the first optocoupler and the second optocoupler and isolate with microcontroller, the transmitting terminal of DALI signal transmitting and receiving circuit, receiving terminal RX interface are connected with microcontroller respectively, when on receiving DALI bus, voltage is high level, the first triode cut-off, the second triode and the 3rd triode conducting, receiving terminal receives low level; When on receiving DALI bus, voltage is low level, the first triode conducting, the second triode and the cut-off of the 3rd triode, receiving terminal RX receives high level.When microcontroller sends high level by transmitting terminal, through optocoupler, then control through the first triode, send low level on DALI bus; When microcontroller sends low level by transmitting terminal, through optocoupler, then control through the first triode, send high level on DALI bus, wherein the 8th resistance limits the electric current of whole DALI bus, the first resistance and the 5th resistance play the effect of dividing potential drop.
Accompanying drawing explanation
Fig. 1 is the physical circuit figure that the utility model relates to a kind of middle DALI signal transmitting and receiving circuit.
Embodiment
In order further to explain the technical solution of the utility model, below by specific embodiment, the utility model is elaborated.
As shown in Figure 1, a kind of DALI signal transmitting and receiving circuit that the utility model relates to, comprise first interface, the second interface, transmitting terminal TX and receiving terminal RX, the first resistance R 1, the first triode Q1, the second triode Q2, the 3rd triode Q3, the 4th resistance R 4, the 5th resistance R 5, the 8th resistance R 8, the first optocoupler U1, the second optocoupler U2, the first capacitor C 1, the 6th resistance R 6 and the 4th diode D4, this DALI interface 1 is connected with the second interface with first interface by full-bridge rectification module, this DALI interface 1 is connected in DALI bus, voltage in this DALI bus is 16V, high level scope is 9.5～22.5V, low level scope is-6.5～6.5V.
Particularly, this first triode Q1 is NPN type triode, this the second triode Q2 and the 3rd triode Q3 are positive-negative-positive triode, this the first optocoupler U1 and the second optocoupler U2 all adopt EL357, the collector electrode of this first triode Q1, one end of the 5th resistance R 5, the emitter of the 3rd triode Q3 is all connected with first interface, the base stage of this first triode Q1 is connected with one end of the 6th resistance R 6 and 2 pin of the first optocoupler U1 by the first resistance R 1, the emitter of this first triode is connected with the second interface by the 4th resistance R 4, the other end of the 5th resistance R 5 is connected with the base stage of the 3rd triode Q3 with the emitter of the second triode Q2, the base stage of this second triode Q2 is all connected with the collector electrode of the 3rd triode Q3 with one end of the 8th resistance R 8, the other end of the 8th resistance R 8 is connected with the collector electrode of the second triode Q2, the collector electrode of this second triode Q2 is also connected with 4 pin of the second optocoupler U2, 4 pin of this first optocoupler U1 are connected with transmitting terminal, be connected 3 pin of this first optocoupler U1 and power supply, 1 pin of this first optocoupler U1 and 3 pin of the second optocoupler U2, one end of the first capacitor C 1 is connected with the negative pole of the 4th diode D4, 1 pin of this second optocoupler U2 is connected with receiving terminal, be connected 2 pin of this second optocoupler U2 and power supply, the other end of the 6th resistance R 6 is all connected with the positive pole of the 4th diode D4 with the other end of the first capacitor C 1.
The conducting of this first triode Q1, the second triode Q2 and the 3rd triode Q3 co-controlling DALI bus signals and closing, signal in this DALI bus by the first optocoupler and the second optocoupler and with microcontroller 3 isolation, the transmitting terminal TX of DALI signal transmitting and receiving circuit 2, receiving terminal RX interface are connected with P26, the P27 mouth of MCU respectively, when on receiving DALI bus, voltage is high level, the first triode Q1 cut-off, the second triode Q2 and the 3rd triode Q3 conducting, receiving terminal RX receives low level; When on receiving DALI bus, voltage is low level, the first triode Q1 conducting, the second triode Q2 and the 3rd triode Q3 cut-off, receiving terminal RX receives high level; When microcontroller sends high level by transmitting terminal TX, through optocoupler, then control through the first triode Q1, send low level on DALI bus; When microcontroller sends low level by transmitting terminal TX, through optocoupler, then control through the first triode Q1, send high level on DALI bus, wherein the 8th resistance R 8 has limited the electric current of whole DALI bus, the first resistance R 1 and 5 effects of playing dividing potential drop of the 5th resistance R.
Above-described embodiment and graphic and non-limiting product form of the present utility model and style, suitable variation or modification that any person of an ordinary skill in the technical field does it, all should be considered as not departing from patent category of the present utility model.
Claims (1)
1. a DALI signal transmitting and receiving circuit, it is characterized in that, comprise first interface, the second interface, transmitting terminal and receiving terminal, the first resistance, the first triode, the second triode, the 3rd triode the 4th resistance, the 5th resistance, the 8th resistance, the first optocoupler, the second optocoupler, the first electric capacity, the 6th resistance and the 4th diode, this first triode is NPN type triode, this second triode and the 3rd triode are positive-negative-positive triode, this first optocoupler and the second optocoupler all adopt EL357, the collector electrode of this first triode, one end of the 5th resistance, the emitter of the 3rd triode is all connected with first interface, the base stage of this first triode is connected with one end of the 6th resistance and 2 pin of the first optocoupler by the first resistance, the emitter of this first triode is connected with the second interface by the 4th resistance, the other end of the 5th resistance is connected with the base stage of the 3rd triode with the emitter of the second triode, the base stage of this second triode is all connected with the collector electrode of the 3rd triode with one end of the 8th resistance, the other end of the 8th resistance is connected with the collector electrode of the second triode, the collector electrode of this second triode is also connected with 4 pin of the second optocoupler, 4 pin of this first optocoupler are connected with transmitting terminal, be connected 3 pin of this first optocoupler and power supply, 1 pin of this first optocoupler and 3 pin of the second optocoupler, one end of the first electric capacity is connected with the negative pole of the 4th diode, 1 pin of this second optocoupler is connected with receiving terminal, be connected 2 pin of this second optocoupler and power supply, the other end of the 6th resistance is all connected with the positive pole of the 4th diode with the other end of the first electric capacity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320616086.1U CN203554746U (en) | 2013-10-08 | 2013-10-08 | DALI signal transmit-receive circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320616086.1U CN203554746U (en) | 2013-10-08 | 2013-10-08 | DALI signal transmit-receive circuit |
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| Publication Number | Publication Date |
|---|---|
| CN203554746U true CN203554746U (en) | 2014-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320616086.1U Expired - Lifetime CN203554746U (en) | 2013-10-08 | 2013-10-08 | DALI signal transmit-receive circuit |
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| CN (1) | CN203554746U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104540285A (en) * | 2014-12-25 | 2015-04-22 | 厦门格绿能光电股份有限公司 | Dali lamp controller |
| CN106067803A (en) * | 2016-07-07 | 2016-11-02 | 上海兴珠信息科技有限公司 | The level-conversion circuit of digital addressable lighting interface DALI |
-
2013
- 2013-10-08 CN CN201320616086.1U patent/CN203554746U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104540285A (en) * | 2014-12-25 | 2015-04-22 | 厦门格绿能光电股份有限公司 | Dali lamp controller |
| CN106067803A (en) * | 2016-07-07 | 2016-11-02 | 上海兴珠信息科技有限公司 | The level-conversion circuit of digital addressable lighting interface DALI |
| CN106067803B (en) * | 2016-07-07 | 2023-09-08 | 浙江优联智能科技有限公司 | Level conversion circuit of digital addressable lighting interface DALI |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140416 |
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| CX01 | Expiry of patent term |