CN203934069U - A kind of drive circuit of arrow-shaped traffic lights - Google Patents

A kind of drive circuit of arrow-shaped traffic lights Download PDF

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Publication number
CN203934069U
CN203934069U CN201420324810.8U CN201420324810U CN203934069U CN 203934069 U CN203934069 U CN 203934069U CN 201420324810 U CN201420324810 U CN 201420324810U CN 203934069 U CN203934069 U CN 203934069U
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CN
China
Prior art keywords
branch road
unit
voltage
polar capacitor
voltage stabilizing
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Expired - Fee Related
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CN201420324810.8U
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Chinese (zh)
Inventor
顾肖红
丁演
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Wuxi Chongan District Technology Innovation Service Center
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Wuxi Chongan District Technology Innovation Service Center
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Priority to CN201420324810.8U priority Critical patent/CN203934069U/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40Control techniques providing energy savings, e.g. smart controller or presence detection

Abstract

The utility model discloses a kind of drive circuit of arrow-shaped traffic lights, comprise the power supply unit, rectification unit, filter unit, voltage regulation unit, the display unit that connect successively, by changing the circuit connecting mode of display unit, make when a LED lamp damages, can not have influence on the work of other LED lamps in series arm, the problems such as causing traffic congestion of having avoided breaking down in traffic lights use procedure, has saved maintenance cost simultaneously.Voltage regulation unit adopts the structure of multiple Capacitance parallel connection simultaneously, makes the supply power voltage of display unit more stable, avoids voltage instability to cause the impact to LED lamp, has extended the useful life of LED lamp.

Description

A kind of drive circuit of arrow-shaped traffic lights
Technical field
The utility model belongs to the technical field of traffic lights application, is specifically related to a kind of drive circuit of arrow-shaped traffic lights.
Background technology
LED traffic lights are comprised of a plurality of LED luminous elements, therefore for the design of pattern, can adjust by the layout to LED, allow and itself form various patterns, and various colors can be made of one, make same lamp body space can give more transport information, configure more traffic plan, also can form dynamic pattern signal by the switching of pattern different parts LED, thereby the stiff traffic signals Renization ﹐ that becomes is vividly changed, and these are that conventional light source is difficult to realize.
Design LED drive circuit time, we first to consider following some:
1, driving power should be used 220V ac voltage rectifier filtering Er get ﹐ and the energy that practices every conceivable frugality.
2, the luminosity impact of mains voltage variations and environmental parameter (as ambient temperature) Bianization Shi ﹐ reply LED is less.
3, when a LED damages, ﹐ should not impact the normal work of other LED lamp.
Therefore, the drive circuit of design LED traffic lights just seems particularly important.
Summary of the invention
Technical problem to be solved in the utility model is: a kind of drive circuit of arrow-shaped traffic lights is provided, by changing the circuit connecting mode of display unit, has solved when a LED damages, by 4 problems that LED does not work that cause connecting with it.
The utility model is for solving the problems of the technologies described above by the following technical solutions:
A kind of drive circuit of arrow-shaped traffic lights, comprise the power supply unit connecting successively, rectification unit, filter unit, voltage regulation unit, display unit, described power supply unit comprises transformer, described rectification unit comprises the rectifier bridge that first to fourth diode forms, described filter unit comprises ∏ shape filter circuit, described voltage stabilizing circuit comprises polar capacitor voltage stabilizing circuit, described display unit comprises at least one luminescence unit, each luminescence unit comprises the first to the 9th luminous branch road and a voltage stabilizing branch road, voltage stabilizing branch road comprises that a voltage stabilizing didoe connects with a resistance, the negative electrode of voltage stabilizing didoe is as the input of voltage stabilizing branch road, the anode of voltage stabilizing didoe is connected with one end of this resistance, the other end of this resistance is as the output of voltage stabilizing branch road, each luminous branch road is composed in series by a light-emitting diode and a resistance, and wherein the negative electrode of light-emitting diode and one end of this resistance are connected, and the anode of light-emitting diode is as the input of luminous branch road, and the other end of resistance is as the output of luminous branch road, the positive output of voltage regulation unit connects respectively the first input to the 5th luminous branch road, the first output to the 5th luminous branch road connects respectively the 6th, the input of the 8th luminous branch road, the output of the 6th luminous branch road, the 8th luminous branch road connects respectively the input of the 7th luminous branch road, the 9th luminous branch road, voltage stabilizing branch road, the 7th luminous branch road, the 9th luminous branch road, the output of voltage stabilizing branch road and the negative pole of output end of voltage regulation unit are connected.
Described voltage regulation unit comprises the first polar capacitor, the second polar capacitor, the 3rd electric capacity, the 5th diode, the 6th diode, wherein, the 5th diode is connected with the negative electrode of the 6th diode, the anode of the 5th diode is the positive pole of voltage regulation unit output, is connected respectively with the positive pole of the first polar capacitor, one end of the positive pole of the second polar capacitor, the 3rd electric capacity; The anode of the 6th diode is the negative pole of voltage regulation unit, is connected respectively with the negative pole of the first polar capacitor, the other end of the negative pole of the second polar capacitor, the 3rd electric capacity.
Described the first polar capacitor capacity is 100uF, and withstand voltage is 50V; The capacity of the second polar capacitor is 400 uF, and withstand voltage is 100V; The capacity of the 3rd electric capacity is 1uF, and withstand voltage is 50V.
Described the first polar capacitor, the second polar capacitor are electrochemical capacitor; Described the 3rd electric capacity is ceramic condenser.
Described resistance is 100 Europe.
Compared with prior art, the utlity model has following beneficial effect:
1, adopt the display unit circuit connected mode of this scheme, make when a LED lamp damages, can not have influence on the work of other LED lamps in series arm, the problems such as causing traffic congestion of having avoided breaking down in traffic lights use procedure, has saved maintenance cost simultaneously.
2, voltage regulation unit adopts the structure of multiple Capacitance parallel connection, makes the supply power voltage of display unit more stable, avoids voltage instability to cause the impact to LED lamp, has extended the useful life of LED lamp.
Accompanying drawing explanation
Fig. 1 is traffic light circuit figure of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, structure of the present utility model and the course of work are described further.
As shown in Figure 1, a kind of drive circuit of arrow-shaped traffic lights, comprise the power supply unit connecting successively, rectification unit, filter unit, voltage regulation unit, display unit, described power supply unit comprises transformer T1, described rectification unit comprises diode D1, D2, D3, the rectifier bridge that D4 forms, described filter unit comprises ∏ shape filter circuit, described ∏ shape filter circuit comprises capacitor C 1, C4, inductance L 1, resistance R 1, R5, described voltage stabilizing circuit comprises polar capacitor C2, the voltage stabilizing circuit that C3 and polarity free capacitor C5 compose in parallel, described display unit comprises at least one luminescence unit, each luminescence unit comprises the first to the 9th luminous branch road and a voltage stabilizing branch road, voltage stabilizing branch road comprises that a voltage stabilizing didoe Z1 connects with a resistance R 4, the negative electrode of voltage stabilizing didoe Z1 is as the input of voltage stabilizing branch road, the anode of voltage stabilizing didoe Z1 is connected with one end of this resistance R 4, the other end of this resistance R 4 is as the output of voltage stabilizing branch road, each luminous branch road is composed in series by a light-emitting diode and a resistance, and wherein the negative electrode of light-emitting diode and one end of this resistance are connected, and the anode of light-emitting diode is as the input of luminous branch road, and the other end of resistance is as the output of luminous branch road, the first luminous branch road is that LED 1 is connected with resistance R 6, the second luminous branch road is that LED 2 is connected with resistance R 7, the 3rd luminous branch road is that LED 3 is connected with resistance R 8, the 4th luminous branch road is that LED 4 is connected with resistance R 9, the 5th luminous branch road is that LED 5 is connected with resistance R 10, the 6th luminous branch road is that LED 6 is connected with resistance R 11, the 7th luminous branch road is that LED 8 is connected with resistance R 12, the 8th luminous branch road is that LED 7 is connected with resistance R 2, the 9th luminous branch road is that LED 9 is connected with resistance R 3, the positive output of voltage regulation unit connects respectively the first input to the 5th luminous branch road, the first output to the 5th luminous branch road connects respectively the 6th, the input of the 8th luminous branch road, the output of the 6th luminous branch road, the 8th luminous branch road connects respectively the input of the 7th luminous branch road, the 9th luminous branch road, voltage stabilizing branch road, the 7th luminous branch road, the 9th luminous branch road, the output of voltage stabilizing branch road and the negative pole of output end of voltage regulation unit are connected.
Adopt the display unit circuit connected mode of this scheme, make when a LED lamp damages, can not have influence on the work of other LED lamps in series arm, the problems such as causing traffic congestion of having avoided breaking down in traffic lights use procedure, has saved maintenance cost simultaneously.
Described voltage regulation unit comprises the first polar capacitor C2, the second polar capacitor C3, the 3rd capacitor C 5, the 5th diode D5, the 6th diode D6, wherein, the 5th diode D5 is connected with the negative electrode of the 6th diode D6, the anode of the 5th diode D5 is the positive pole of voltage regulation unit output, is connected respectively with the positive pole of the first polar capacitor C2, one end of the positive pole of the second polar capacitor C3, the 3rd capacitor C 5; The anode of the 6th diode D6 is the negative pole of voltage regulation unit, is connected respectively with the negative pole of the first polar capacitor C2, the other end of the negative pole of the second polar capacitor C3, the 3rd capacitor C 5.
Described the first polar capacitor C2 capacity is 100uF, and withstand voltage is 50V; The capacity of the second polar capacitor C3 is 400 uF, and withstand voltage is 100V; The capacity of the 3rd capacitor C 5 is 1uF, and withstand voltage is 50V.
Described the first polar capacitor, the second polar capacitor are electrochemical capacitor; Described the 3rd electric capacity is ceramic condenser.
Voltage regulation unit adopts the structure of multiple Capacitance parallel connection, makes the supply power voltage of display unit more stable, avoids voltage instability to cause the impact to LED lamp, has extended the useful life of LED lamp.
Described resistance is 100 Europe.Met the demand of current limliting and demonstration.

Claims (5)

1. the drive circuit of arrow-shaped traffic lights, comprise the power supply unit connecting successively, rectification unit, filter unit, voltage regulation unit, display unit, described power supply unit comprises transformer, described rectification unit comprises the rectifier bridge that first to fourth diode forms, described filter unit comprises ∏ shape filter circuit, described voltage stabilizing circuit comprises polar capacitor voltage stabilizing circuit, it is characterized in that: described display unit comprises at least one luminescence unit, each luminescence unit comprises the first to the 9th luminous branch road and a voltage stabilizing branch road, voltage stabilizing branch road comprises that a voltage stabilizing didoe connects with a resistance, the negative electrode of voltage stabilizing didoe is as the input of voltage stabilizing branch road, the anode of voltage stabilizing didoe is connected with one end of this resistance, the other end of this resistance is as the output of voltage stabilizing branch road, each luminous branch road is composed in series by a light-emitting diode and a resistance, and wherein the negative electrode of light-emitting diode and one end of this resistance are connected, and the anode of light-emitting diode is as the input of luminous branch road, and the other end of resistance is as the output of luminous branch road, the positive output of voltage regulation unit connects respectively the first input to the 5th luminous branch road, the first output to the 5th luminous branch road connects respectively the 6th, the input of the 8th luminous branch road, the output of the 6th luminous branch road, the 8th luminous branch road connects respectively the input of the 7th luminous branch road, the 9th luminous branch road, voltage stabilizing branch road, the 7th luminous branch road, the 9th luminous branch road, the output of voltage stabilizing branch road and the negative pole of output end of voltage regulation unit are connected.
2. the drive circuit of arrow-shaped traffic lights according to claim 1, it is characterized in that: described voltage regulation unit comprises the first polar capacitor, the second polar capacitor, the 3rd electric capacity, the 5th diode, the 6th diode, wherein, the 5th diode is connected with the negative electrode of the 6th diode, the anode of the 5th diode is the positive pole of voltage regulation unit output, is connected respectively with the positive pole of the first polar capacitor, one end of the positive pole of the second polar capacitor, the 3rd electric capacity; The anode of the 6th diode is the negative pole of voltage regulation unit, is connected respectively with the negative pole of the first polar capacitor, the other end of the negative pole of the second polar capacitor, the 3rd electric capacity.
3. the drive circuit of arrow-shaped traffic lights according to claim 2, is characterized in that: described the first polar capacitor capacity is 100uF, and withstand voltage is 50V; The capacity of the second polar capacitor is 400 uF, and withstand voltage is 100V; The capacity of the 3rd electric capacity is 1uF, and withstand voltage is 50V.
4. the drive circuit of arrow-shaped traffic lights according to claim 3, is characterized in that: described the first polar capacitor, the second polar capacitor are electrochemical capacitor; Described the 3rd electric capacity is ceramic condenser.
5. according to the drive circuit of the arrow-shaped traffic lights described in any one in claim 1 to 4, it is characterized in that: described resistance is 100 Europe.
CN201420324810.8U 2014-06-18 2014-06-18 A kind of drive circuit of arrow-shaped traffic lights Expired - Fee Related CN203934069U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420324810.8U CN203934069U (en) 2014-06-18 2014-06-18 A kind of drive circuit of arrow-shaped traffic lights

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420324810.8U CN203934069U (en) 2014-06-18 2014-06-18 A kind of drive circuit of arrow-shaped traffic lights

Publications (1)

Publication Number Publication Date
CN203934069U true CN203934069U (en) 2014-11-05

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104023449A (en) * 2014-06-18 2014-09-03 无锡市崇安区科技创业服务中心 Driving circuit of arrow-head-shaped traffic lights

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104023449A (en) * 2014-06-18 2014-09-03 无锡市崇安区科技创业服务中心 Driving circuit of arrow-head-shaped traffic lights

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Granted publication date: 20141105

Termination date: 20150618