CN203504867U - DALI protocol main controller - Google Patents
DALI protocol main controller Download PDFInfo
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- CN203504867U CN203504867U CN201320651053.0U CN201320651053U CN203504867U CN 203504867 U CN203504867 U CN 203504867U CN 201320651053 U CN201320651053 U CN 201320651053U CN 203504867 U CN203504867 U CN 203504867U
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- dali
- power supply
- master controller
- chip microcomputer
- usb
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Abstract
The utility model provides a DALI protocol main controller, one end of which is connected with a host computer by a USB interface. The USB interface of the host computer can be used to provide the power supply, and the other end of the DALI protocol main controller is connected with a ballast. The utility model is advantageous in that the USB is used to supply the DALI protocol main controller with the power, and no extra power supply is required, and therefore the design can be simplified, the costs can be reduced, and the portability of the USB as the communication interface can be fully developed.
Description
Technical field
The utility model relates to digital lighting control field, be specifically related to a kind of DALI(Digital AddressableLightingInterface, the addressable lighting interface of numeral) agreement master controller, it can carry out respectively light modulation to being connected to the brightness of each the ballast light fixture on same control line.
Background technology
DALI master control in the market adopts serial mode to communicate by letter with PC more, also there is no unified usb communication mode, and need an additional 24V DC power supply of isolating separately to work, in addition current most of notebook computer does not have serial ports, also wanting circumscribed USB to turn serial ports could use, therefore cause wiring more complicated, operate also very loaded down with trivial details.
Utility model content
For addressing the above problem, the utility model provides a kind of DALI agreement master controller, to make, wiring is easier rationally turns serial equipment without USB, also without extra 24V DC power supply.
For reaching above-mentioned purpose, a kind of DALI agreement master controller is provided, one end of described DALI agreement master controller is connected with host computer by USB interface, by the USB interface of described host computer, provides power supply, and the other end of described DALI agreement master controller is connected with ballast.
Preferably, described DALI agreement master controller comprises:
Single-chip microcomputer, insulating power supply, booster circuit, voltage stabilizing circuit, photoelectrical coupler, rectification current-limiting circuit, DALI decoder;
Two usb communication pins of described single-chip microcomputer and two corresponding connections of USB differential data bus, the reception pin Rx of described single-chip microcomputer with send pin Tx and be all connected with described photoelectrical coupler;
Described photoelectrical coupler is connected between described single-chip microcomputer and described rectification current-limiting circuit;
Described rectification current-limiting circuit is connected with described DALI decoder by DALI bus;
Described DALI decoder is connected with described ballast;
The input of described insulating power supply is connected with described host computer by described USB interface, and the output of described insulating power supply is connected to described rectification current-limiting circuit by described booster circuit, voltage stabilizing circuit successively.
Preferably, described ballast is the ballast of fluorescent lamp, LED lamp or neon light.
The useful technique effect of technique scheme of the present utility model is:
The utility model compatibility standard DALI agreement, simple in structure, wiring is reasonable, multiple functional;
The utility model adopts USB to power to DALI agreement master controller, by insulating power supply and booster circuit, 5VUSB power supply is converted into 24V DC power supply, no longer need extra power supply, thereby simplified design, optimized circuit wiring, reduce costs, given full play to the convenience of USB as communication interface.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, by the accompanying drawing of required use in embodiment or description of the Prior Art being done to one, introduce simply below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of the DALI agreement master controller of the utility model embodiment;
Fig. 2 is as the concrete structure schematic diagram of a DALI agreement master controller of giving an example in the utility model embodiment.
Drawing reference numeral:
Host computer 10, DALI agreement master controller 20, single-chip microcomputer 21, insulating power supply 22, booster circuit 23, voltage stabilizing circuit 24, photoelectrical coupler 25, rectification current-limiting circuit 26, DALI decoder 27, ballast 30.
Embodiment
For making object, technical scheme and the advantage of the utility model embodiment clearer, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
Fig. 1 is the structural representation of the DALI agreement master controller of the utility model embodiment.As shown in Figure 1, DALI agreement master controller 20 is for example PC by USB interface with host computer 10() be connected, the USB interface of PC10 provides 5V power supply.DALI agreement master controller 20 is also connected with ballast 30.The DALI agreement master controller 20 that the utility model is implemented comprises:
Single-chip microcomputer 21, insulating power supply 22, booster circuit 23, voltage stabilizing circuit 24, photoelectrical coupler 25, rectification current-limiting circuit 26, DALI decoder 27.
Host computer 10 is for 5V power supply is provided by USB interface, and sends the order of DALI brightness adjustment control to single-chip microcomputer 21 in usb communication mode.
In the utility model embodiment, single-chip microcomputer 21 can adopt PIC18F14K50, and this single-chip microcomputer operating voltage is 5V direct current, can directly be powered by host computer 10, and self-carried USB communication module, do not need circumscribed USB conversion chip.
Between host computer 10 and single-chip microcomputer 21, by USB interface, connect corresponding two the usb communication pins that connect single-chip microcomputer of two differential data bus of USB.
Between 5V power supply and insulating power supply 22, by insulating power supply chip, connect, be output as the 5V power supply on ground no longer altogether.The effect of insulating power supply is exactly that the front and back stages power supply boosting is separated, and avoids phase mutual interference, so isolation front and back just no longer altogether.
In the utility model embodiment, booster circuit 23 is preferably by the RT9266 chip that boosts, a SS14 voltage-stabiliser tube, and an A03424MOSFET pipe, and some peripheral circuits form, for the 5V DC power supply after isolation is boosted as 24V direct current.
In the utility model embodiment, voltage stabilizing circuit 24 preferably adopts triode to add voltage stabilizing didoe and related resistors forms, and the voltage stabilizing of 24V direct current is arrived to 15V direct current left and right.
In the utility model embodiment, rectification current-limiting circuit 26 preferably adopts bridge rectifier and voltage stabilizing didoe, for the approximate direct current of the 15V after voltage stabilizing being continued to do rectification and voltage stabilizing is processed so that DALI bus when idle voltage difference be stabilized in 15V left and right, meet DALI agreement specified standard.
Two outputs 1,3(that DALI bus (DALI1 and DALI2 holding wire) is connected respectively bridge rectifier refer to Fig. 2).
Ballast 30 is various light fixtures, as fluorescent lamp, LED lamp, neon light etc.
The utility model embodiment adopts usb communication mode, and the 5V power supply and the strategy that boosts that utilize USB to provide, complete the design of the electrical characteristic that meets IEC60929DALI consensus standard.That is: the DALI brightness adjustment control order that reception host computer 10 sends by USB, single-chip microcomputer 21 receives the DALI order that resolves to standard after order by decoding, through subsequent conditioning circuit, be converted into again the DALI signal of standard, by DALI bus, send to DALI decoder 27, after decoding, the ballast 30 of control connection on this DALI decoder 27 carries out light adjusting.
DALI agreement master controller 20 provides 5V power supply by USB, by booster circuit 23,5V direct current is converted into 24V direct current, then for the output of DALI bus, uses after voltage stabilizing rectification.DALI receives and transmitted signal is controlled by single-chip microcomputer 21, and it receives pin and is all called for short optocoupler with photoelectrical coupler 25(with transmission pin) be connected, photoelectrical coupler 25 can be along with signal intensity opens and closes accordingly.While transmitting control signal, the transmission pin of single-chip microcomputer 21 can be controlled photoelectrical coupler 25 switches and remake and use in DALI bus, thus the DALI signal of the standard of generation; While in like manner receiving the passback order of DALI decoder 27, on-off action that also can be by photoelectrical coupler 25, above the reception pin of single-chip microcomputer 21, then is done respective handling by single-chip microcomputer 21.
Fig. 2 is as the concrete structure schematic diagram of a DALI agreement master controller of giving an example in the utility model embodiment.Following each table of each Reference numeral in Fig. 2 (pin that is each device is called for short) implication:
USB interface:
| Pin | Explanation |
| D+ | Differential data line is anodal |
| D- | Differential data line negative pole |
| +5V | + 5V voltage |
| GND | Ground connection |
21: single-chip microcomputer
| Pin | Explanation |
| USB_DP | USB correction data line |
| USB_DN | USB negative data line |
| Tx | IO mouth is as sending pin |
| Rx | IO mouth is as receiving pin |
22: insulating power supply
| Pin | Explanation |
| VCC1 | Input voltage is anodal |
| GND1 | Input ground |
| VCC2 | Output voltage is anodal |
| GND2 | Output ground |
23: booster circuit
24: voltage stabilizing circuit
25: photoelectrical coupler
| A | Anode |
| K | Negative electrode |
| C | Collector electrode |
| E | Emitter |
26: rectification current-limiting circuit
27:DALI decoder
| DALI1 | DALI |
| DALI2 | DALI bus 2 |
| V+ | Positive source |
| V- | Power cathode |
30: ballast
| V+ | The positive pole of lamp |
| V- | The negative pole of lamp |
The operation principle of DALI agreement master controller 20 of the present utility model is as follows: the 5V power supply that host computer 10 provides by USB interface, one is used for to 21 power supplies of PIC single-chip microcomputer, its two process insulating power supply 22 and booster circuit 23, voltage is raised to the electric scope of DALI agreement regulation by 5VDC, then by voltage stabilizing circuit 24, do voltage-stabilizing protection, and PIC single-chip microcomputer 21 will receive the DALI brightness adjustment control order that host computer 10 is sent on the one hand, need on the other hand this command analysis to become the Manchester code of DALI signal transmission needs, by photoelectrical coupler 25, coordinate the DALI signal of rectification current-limiting circuit 26 outputting standards and give DALI bus (DALI1 and DALI2 holding wire) transmission, in like manner when the order of DALI brightness adjustment control is querying command, also need to receive the passback order of DALI decoder 27, now rectification current-limiting circuit 26 can coordinate photoelectrical coupler 25 that DALI signal is converted into the level signal that single-chip microcomputer 21 can be identified, finally by single-chip microcomputer 21, process the passback order receiving and do corresponding processing.
The advantage of technique scheme of the present utility model is, compatibility standard DALI agreement, and simple in structure, wiring is reasonable, multiple functional.The utility model adopts USB to power to DALI agreement master controller, by insulating power supply and booster circuit, 5VUSB power supply is converted into 24V DC power supply, no longer need extra power supply, thereby simplified design, optimized circuit wiring, reduce costs, given full play to the convenience of USB as communication interface.
The utility model is not limited to above-mentioned preferred forms; any product drawing under enlightenment of the present utility model; for example change single-chip microcomputer; the replacing behaviors such as chip of boosting; no matter in its shape or structure, do any variation; every have identical with a application or akin technical scheme, within all dropping on protection range of the present utility model.
Above embodiment only, in order to the technical scheme of the utility model embodiment to be described, is not intended to limit; Although the utility model embodiment is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the spirit and scope of each embodiment technical scheme of the utility model embodiment.
Claims (3)
1. a DALI agreement master controller, it is characterized in that, one end of this DALI agreement master controller (20) is connected with host computer (10) by USB interface, USB interface by described host computer (10) provides power supply, and the other end of described DALI agreement master controller (20) is connected with ballast (30).
2. DALI agreement master controller according to claim 1, is characterized in that, described DALI agreement master controller (20) comprising:
Single-chip microcomputer (21), insulating power supply (22), booster circuit (23), voltage stabilizing circuit (24), photoelectrical coupler (25), rectification current-limiting circuit (26), DALI decoder (27);
Two usb communication pins of described single-chip microcomputer (21) and two corresponding connections of USB differential data bus, the reception pin (Rx) of described single-chip microcomputer (21) with send pin (Tx) and be all connected with described photoelectrical coupler (25);
Described photoelectrical coupler (25) is connected between described single-chip microcomputer (21) and described rectification current-limiting circuit (26);
Described rectification current-limiting circuit (26) is connected with described DALI decoder (27) by DALI bus;
Described DALI decoder (27) is connected with described ballast (30);
The input of described insulating power supply (22) is connected with described host computer (10) by described USB interface, and the output of described insulating power supply (22) is connected to described rectification current-limiting circuit (26) by described booster circuit (23), described voltage stabilizing circuit (24) successively.
3. DALI agreement master controller according to claim 2, is characterized in that, described ballast (30) is the ballast of fluorescent lamp, LED lamp or neon light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320651053.0U CN203504867U (en) | 2013-10-21 | 2013-10-21 | DALI protocol main controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320651053.0U CN203504867U (en) | 2013-10-21 | 2013-10-21 | DALI protocol main controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203504867U true CN203504867U (en) | 2014-03-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320651053.0U Expired - Lifetime CN203504867U (en) | 2013-10-21 | 2013-10-21 | DALI protocol main controller |
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| Country | Link |
|---|---|
| CN (1) | CN203504867U (en) |
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2013
- 2013-10-21 CN CN201320651053.0U patent/CN203504867U/en not_active Expired - Lifetime
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Granted publication date: 20140326 |