CN106793289B - A kind of running lamp line control circuit - Google Patents
A kind of running lamp line control circuit Download PDFInfo
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- CN106793289B CN106793289B CN201611167815.4A CN201611167815A CN106793289B CN 106793289 B CN106793289 B CN 106793289B CN 201611167815 A CN201611167815 A CN 201611167815A CN 106793289 B CN106793289 B CN 106793289B
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- triode
- collector
- control circuit
- base stage
- thyristor
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- 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
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/37—Converter circuits
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- 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
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
-
- 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]
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention discloses a kind of running lamp line control circuits, it is mutually in parallel and at the LED light wire of reverse-conducting including Switching Power Supply, MCU controller, control circuit of bidirectional thyristor and at least one set, including H-bridge circuit, H-bridge circuit includes the electric bridge of the first triode Q1 and the second triode Q2 composition, Q1 current collection extremely the first output end, Q2 current collection extremely second output terminal, Q1 collector are connect with the 4th triode Q4 base stage, and Q2 collector is connect with third transistor Q3 base stage；Switching Power Supply provides DC offset voltage for above-mentioned module；MCU controller at a time selects one for Q1 and Q3 and provides base bias voltage, provides control voltage for control circuit of bidirectional thyristor；Control circuit of bidirectional thyristor guarantees that LED light wire returns to ground terminal by Q3 or Q4.While the present invention changes power supply mode, assists MCU to be controlled using H bridge, alleviate product weight, reduce wiring quantity, reduce costs.
Description
Technical field
The present invention relates to the shinny technical fields of flowing water lamp line, and in particular to a kind of running lamp line control circuit.
Background technique
Existing flowing water lamp line all be using be carried out than more ancient mode to lamp line carry out flowing water lamp line control,
The effect of flowing water lamp line is all with popular " lower ice-lolly " i.e. flowing water lamp bar on the market at present, just as a drop water falls from above
Get off the same.There are two types of current control modes,
First way is: power supply comes in come out by Switching Power Supply from the 90-265VAC of exchange obtains corresponding voltage,
Then back control section is the just extremely common end by using output voltage, if you will control 8 street lamps, this 8 tunnel
That of lamp anode will be connected to Switching Power Supply output cathode common end, one end of 8 road cathode be then by 8 it is silicon-controlled into
Row control, realizes the effect of running lamp, this disadvantage is exactly that the lamp line of output just has 9 wire jumpers (common wire and 8 cathode in total
Control line, so being 9 lines) because flowing water lamp line is long, line is relatively more, bad wiring, cost of idleness.
The second way is: power supply is that the 220V of exchange comes in, and is depressured by low-frequency transformer, is handed over accordingly
Galvanic electricity, then subsequent control mode is that the connection of lamp is different, and lamp is positive-negative connected, and the silicon-controlled of selection is bidirectional triode thyristor,
If equally 8 street lamps of control, the first via is just to connect, and the second tunnel is reversal connection, and third road is just to connect, and the 4th tunnel is reversal connection, with such
It pushes away.MCU control mode is that the sinusoidal waveform for the alternating current that detection transformer comes out opens first in the positive half cycle of transformer
Road is silicon-controlled, and the flow direction of negative half-cycle current is reversed in, and bidirectional triode thyristor will be zeroed, and the first street lamp can close, in negative half period
MCU is again again to a signal to bidirectional triode thyristor when arrival, and bidirectional triode thyristor is again turned on, and the flow direction of electric current is exactly anti-at this time
Come over, second group of lamp is light.And so on, 8 groups of lamps can be lighted successively, it is desirable to which the effect for realizing flowing water utilizes sine
The arc of wave cut wave and can be achieved with drawing tail phenomenon, i.e. flowing water effect.Line only uses 5 lines, and one is that this is public for common end
Termination exchanges out which side all OK, and after selecting, 4 groups of lamps will be connected to the another of alternating current after passing through bidirectional triode thyristor out
One end, forming circuit, so being 5 wire jumpers.Disadvantage: be exactly low frequency transformer ratio it is cumbersome, low efficiency.
Summary of the invention
Based on the deficiencies of the prior art, the purpose of the present invention is to provide a kind of running lamp line control circuit, low frequency is become
Depressor is changed to high frequency switch power power supply and is changed to 5 control line technologies in conjunction with by pervious 9 control line, mitigates the quality of product
Wiring quantity is controlled simultaneously, achievees the purpose that wiring is easy, reduces cost.
To achieve the above object, the technical solution of the present invention is as follows:
A kind of running lamp line control circuit, including Switching Power Supply, MCU controller, control circuit of bidirectional thyristor and at least
One group is mutually in parallel and at the LED light wire of reverse-conducting, further includes H-bridge circuit, the H-bridge circuit includes by the first triode Q1
The electric bridge formed with the second triode Q2, the current collection of the first triode Q1 extremely the first output end of H-bridge circuit, described second
The second output terminal of the current collection of triode Q2 extremely H-bridge circuit, the collector of the first triode Q1 also with the 4th triode
Q4 base stage connection, the 4th triode Q4 emitter ground connection, the collector of the second triode Q2 also with third transistor Q3
Base stage connection, third transistor Q3 emitter ground connection, the collector of the first triode Q1 also with the third transistor
The collector of Q3 connects, and the collector of the second triode Q2 is also connect with the collector of the 4th triode Q4；
The Switching Power Supply, for being the MCU controller, the control circuit of bidirectional thyristor and the H-bridge circuit
DC offset voltage is provided；
The MCU controller, the first output end connect the base stage of the first triode Q1, described in second output terminal connection
The base stage of second triode Q2, at a time being selected wherein for the first triode Q1 and the second triode Q2
One of provide base bias voltage for it, third output end connects control circuit of bidirectional thyristor as control electrode, for it is two-way can
It controls silicon control circuit and control voltage is provided；
The control circuit of bidirectional thyristor, including PNP type triode and bidirectional triode thyristor, the PNP type triode
Base stage connects the MCU controller third output end, and the grid of the PNP type triode collector connection bidirectional triode thyristor is gone back
Forward direction is connected with diode, the control voltage that the control circuit of bidirectional thyristor is exported according to MCU controller third output end
And the direction of LED light wire conducting, guarantee that LED light wire is returned by the 4th triode Q4 of third transistor Q3 or described and is grounded
Circuit, wherein the bidirectional triode thyristor first anode connects first output end of H-bridge circuit, second plate connect two it is in parallel
Another common end of the common end of LED light wire, the LED light wire connects the H-bridge circuit second output terminal.
Further, the collector of the first triode Q1 passes through the collector of resistance R5 and the 4th triode Q4
It is connected；The collector of the second triode Q2 is connected by resistance R4 with the collector of the third transistor Q3.
Further, it is in series with just between the collector of the first triode Q1 and the base stage of the second triode Q2
To third diode D3；Forward direction is in series between the second triode Q2 collector and the base stage of the first triode Q1
First diode D1.
Further, the LED light wire is 4 group of 8 street lamp.
The invention has the benefit that assisting MCU to carry out using H bridge while changing Switching Power Supply power supply mode
Control, not only alleviates the weight of product, also reduces the quantity of wiring, saves line, and be easy wiring, reduces costs.
Detailed description of the invention
Fig. 1 is the electrical block diagram of the specific embodiment of the invention；
Fig. 2 is the MCU controller circuit structure enlarged drawing of the specific embodiment of the invention；
Fig. 3 is the bidirectional triode thyristor circuit structure enlarged drawing of the specific embodiment of the invention；
Fig. 4 is 4 group of 8 paths of LEDs light circuit schematic enlarged-scale view of the specific embodiment of the invention；
Fig. 5 is the H-bridge circuit schematic enlarged-scale view of the specific embodiment of the invention.
Specific embodiment
It is carried out below with reference to technical effect of the embodiment and attached drawing to design of the invention, specific structure and generation clear
Chu is fully described by, to be completely understood by the purpose of the present invention, feature and effect.Obviously, described embodiment is this hair
Bright a part of the embodiment, rather than whole embodiments, based on the embodiment of the present invention, those skilled in the art are not being paid
Other embodiments obtained, belong to the scope of protection of the invention under the premise of creative work.
A kind of running lamp line control circuit, including Switching Power Supply 1, MCU controller 2, hereinafter referred to as MCU controller, it is two-way
Silicon controlled control circuit 3 and 4 group is mutually in parallel and at the LED light wire of reverse-conducting 4, and 8 lamp lines, further include H-bridge circuit in total
5, H-bridge circuit 5 includes the electric bridge being made of the first triode Q1 and the second triode Q2, the current collection extremely H of the first triode Q1
The second output terminal COM of the current collection extremely H-bridge circuit of the first output end of bridge circuit W, the second triode Q2, the first triode Q1's
Collector is also connect with the 4th triode Q4 base stage, the emitter ground connection of the 4th triode Q4, the collector of the second triode Q2
It is also connect with third transistor Q3 base stage, the emitter of third transistor Q3 ground connection, the collector of the first triode Q1 is also with the
The collector of three triode Q3 connects, and the collector of the second triode Q2 is also connect with the collector of the 4th triode Q4；
Switching Power Supply, for providing DC offset voltage for MCU controller, control circuit of bidirectional thyristor and H-bridge circuit；
MCU controller, 12 foot of the first output end connect the base stage of the first triode Q1,13 foot of second output terminal connection second
The base stage of triode Q2, at a time selecting one of them to provide for it for the first triode Q1 and the second triode Q2
Base bias voltage, 2 foot of third output end connect control circuit of bidirectional thyristor as control electrode, for bidirectional triode thyristor control electricity
Road provides control voltage；
Control circuit of bidirectional thyristor, including PNP type triode Q6 and bidirectional triode thyristor Q5, the base of PNP type triode Q6
Pole connects 2 foot of MCU controller third output end, and PNP type triode Q6 collector connects the grid of bidirectional triode thyristor Q5, also forward direction
It is connected with diode D11, the control voltage and LED that control circuit of bidirectional thyristor is exported according to MCU controller third output end
The direction of lamp line conducting guarantees that LED light wire returns to earth-return circuit by third transistor Q3 or the 4th triode Q4, wherein double
The first output end of H-bridge circuit W is connected to the silicon-controlled Q5 first anode, second plate connects the public of two LED light wires in parallel
Another common end at end, LED light wire connects H-bridge circuit second output terminal COM.
The collector of first triode Q1 is connected by resistance R5 with the collector of the 4th triode Q4；Second triode Q2
Collector be connected with the collector of third transistor Q3 by resistance R4.
Positive third diode D3 is in series between the collector of first triode Q1 and the base stage of the second triode Q2；
Positive first diode D1 is in series between second triode Q2 collector and the base stage of the first triode Q1.
Control process is as follows:
Step 1: 90~265VAC of power supply passes through Switching Power Supply, DC voltage DC36V is exported, output voltage is adjustable
, number of going here and there as needed is adjusted, here by taking 12 lamp strings as an example.
Step 2: obtaining DC36V supply Q1, Q2, Q6, Q8, Q10, Q13, while also passing through zener diode D15 and R16
5V pressure stabilizing is carried out, IC is supplied, MCU is in floating ground state at this time.12 feet and 13 feet of MCU are in high level, and Q1, Q2 are in and cut
Only state.
Step 3: 12 foot of MCU exports low level, Q1, Q4 conducting, 2 foot of MCU exports low level again, and Q6 conducting is led to Q6
After logical, bidirectional triode thyristor Q5G foot has obtained high level, then silicon-controlled be in forward conduction.Electric current flows through the process of Q5 from Q1
First via LED light returns to the ground that Q4 eventually passes back to power supply, forming circuit.So first via LED light can be lighted, a street lamp
It is bright it is complete after, MCU12 foot and 2 feet restore high level, and the first street lamp starts to knock out.
Step 4: 13 foot of MCU exports low level, and Q2, Q3 conducting, 1 foot of MCU exports low level, at high-impedance state, Q6
In off state, bidirectional triode thyristor be now in reverse phase conducting, then electric current from Q2 by the second paths of LEDs lamp using Q5 then
To Q3, the ground of power supply is eventually passed back to, is formed into a loop.So the second street lamp can be lighted, and Q5 grid current is formed by D11
Access.Two street lamps it is bright it is complete after, MCU restores 13 feet and 1 foot and restores high level, and the first street lamp starts to knock out.Step 5: and so on
8 street lamps can sequence successively light.
The present embodiment will realize the effect of flowing water, may be implemented using the waveshape of cutting of present MCU prevalence.
It should be noted that described above is presently preferred embodiments of the present invention, the invention is not limited to above-mentioned
Embodiment all should belong to protection scope of the present invention as long as it reaches technical effect of the invention with identical means.
Claims (4)
1. a kind of running lamp line control circuit, including Switching Power Supply, MCU controller, control circuit of bidirectional thyristor and at least one
Group is mutually in parallel and at the LED light wire of reverse-conducting, it is characterised in that: further includes H-bridge circuit, the H-bridge circuit includes by the
The electric bridge of one triode Q1 and the second triode Q2 composition, the current collection of the first triode Q1 extremely H-bridge circuit first export
End, the second output terminal COM of the current collection extremely H-bridge circuit of the second triode Q2, the collector of the first triode Q1
It is also connect with the 4th triode Q4 base stage, the emitter ground connection of the 4th triode Q4, the collector of the second triode Q2 is also
Connect with third transistor Q3 base stage, the emitter of third transistor Q3 ground connection, the collector of the first triode Q1 also with
The collector of the third transistor Q3 connects, collection of the collector of the second triode Q2 also with the 4th triode Q4
Electrode connection；
The Switching Power Supply, for being provided for the MCU controller, the control circuit of bidirectional thyristor and the H-bridge circuit
DC offset voltage；
The MCU controller, the first output end connect the base stage of the first triode Q1, second output terminal connection described second
The base stage of triode Q2, at a time selecting one of them for the first triode Q1 and the second triode Q2
Base bias voltage is provided for it, third output end connects control circuit of bidirectional thyristor as control electrode, is bidirectional triode thyristor
Control circuit provides control voltage；
The control circuit of bidirectional thyristor, including PNP type triode and bidirectional triode thyristor, the base stage of the PNP type triode
Connect the MCU controller third output end, the grid of the PNP type triode collector connection bidirectional triode thyristor, also forward direction
It is connected with diode, the control voltage and LED that the control circuit of bidirectional thyristor is exported according to MCU controller third output end
The direction of lamp line conducting guarantees that LED light wire returns to earth-return circuit by the 4th triode Q4 of third transistor Q3 or described,
Wherein, the bidirectional triode thyristor first anode connects first output end of H-bridge circuit, and second plate connects two LED light in parallel
Another common end of the common end of line, the LED light wire connects the H-bridge circuit second output terminal.
2. running lamp line control circuit as described in claim 1, it is characterised in that: the collector of the first triode Q1 is logical
Resistance R5 is crossed to be connected with the collector of the 4th triode Q4；The collector of the second triode Q2 passes through resistance R4 and institute
The collector for stating third transistor Q3 is connected.
3. running lamp line control circuit as described in claim 1, it is characterised in that: the collector of the first triode Q1 with
Positive third diode D3 is in series between the base stage of the second triode Q2；The second triode Q2 collector and institute
It states and is in series with positive first diode D1 between the base stage of the first triode Q1.
4. running lamp line control circuit as described in claim 1, it is characterised in that: the LED light wire is 4 group of 8 street lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611167815.4A CN106793289B (en) | 2016-12-16 | 2016-12-16 | A kind of running lamp line control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611167815.4A CN106793289B (en) | 2016-12-16 | 2016-12-16 | A kind of running lamp line control circuit |
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| Publication Number | Publication Date |
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| CN106793289A CN106793289A (en) | 2017-05-31 |
| CN106793289B true CN106793289B (en) | 2019-03-29 |
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| CN201611167815.4A Active CN106793289B (en) | 2016-12-16 | 2016-12-16 | A kind of running lamp line control circuit |
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Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201491322U (en) * | 2009-07-30 | 2010-05-26 | 苟迎娟 | Controlled silicon commercial power LED dimming light source |
| WO2014179994A1 (en) * | 2013-05-10 | 2014-11-13 | Shanghai Sim-Bcd Semiconductor Manufacturing Co., Ltd. | Power supply for led lamp with triac dimmer |
| CN102545566A (en) * | 2012-01-04 | 2012-07-04 | 浙江大学 | Universal H-bridge and half-H-bridge circuit module |
| KR101555775B1 (en) * | 2014-02-13 | 2015-09-30 | 메를로랩 주식회사 | AC LED driving circuit |
| CN105722285B (en) * | 2014-12-04 | 2018-06-08 | 凹凸电子（武汉）有限公司 | For the light source driving circuit of TRIAC dimmer |
| CN105873278B (en) * | 2016-05-23 | 2017-08-18 | 东莞市领冠半导体照明有限公司 | A kind of multi-mode dimming power source circuit |
| CN206226803U (en) * | 2016-12-16 | 2017-06-06 | 珠海市诚立信电子科技有限公司 | A kind of running lamp line control circuit |
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