CN215529382U - Constant current driving system of stroboscopic LED lamp - Google Patents
Constant current driving system of stroboscopic LED lamp Download PDFInfo
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- CN215529382U CN215529382U CN202022990686.7U CN202022990686U CN215529382U CN 215529382 U CN215529382 U CN 215529382U CN 202022990686 U CN202022990686 U CN 202022990686U CN 215529382 U CN215529382 U CN 215529382U
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- led lamp
- driving circuit
- constant current
- stroboscopic led
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- 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
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The utility model discloses a constant current driving system of a stroboscopic LED lamp. The system belongs to the field of traffic light supplement lamps and comprises a logic control device and a stroboscopic LED lamp; the logic control device judges the working state of the constant current and constant voltage driving circuit and the state of the constant current and constant voltage driving circuit output to the stroboscopic LED lamp, and outputs a control signal to the constant current and constant voltage circuit; the constant current and constant voltage driving circuit sends a control signal to the stroboscopic LED lamp in a driving output mode; the constant voltage and constant current driving circuit simultaneously feeds back the received control signal to the logic control device; the stroboscopic LED lamp is fed back to the logic control device through the mode of LED driving state detection. The utility model solves the problem that the time of the starting and closing process of the stroboscopic LED lamp constant-current driving circuit is longer, reduces the energy consumption of the stroboscopic LED lamp in the intelligent traffic industry, and reduces the generation of useless energy consumption to the maximum extent; the energy utilization efficiency is greatly improved.
Description
Technical Field
The utility model relates to the field of traffic light supplement lamps, in particular to a constant current driving system of a stroboscopic LED lamp.
Background
The constant current driving circuit of the LED lamp is a circuit developed and designed based on normally-on driving, and is suitable for the condition that the stroboscopic LED lamp works continuously.
At present, the stroboscopic light filling lamp that wisdom traffic industry used needs the state that constantly opens and close to switch, opening and closing the in-process, because the electric current of operating current and design demand is different, can influence video effect, can not use under the normal conditions. This results in a loss of energy during the opening and closing process that is of no practical value.
The existing improved schemes optimize the closing process, can effectively improve the closing speed and solve the energy consumption problem in the closing process, but the opening process still exists; the disadvantages thereof still exist; therefore, how to solve the above problems becomes a problem to be solved at present.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model provides a constant current driving system of a stroboscopic LED lamp, which can adapt to quick turn-on and turn-off, so that the turn-on and turn-off processes of an LED driving circuit are greatly reduced, the driving current is quickly stabilized, the energy utilization rate is improved, and the energy consumption is reduced.
The technical scheme of the utility model is as follows: a constant current driving system of a stroboscopic LED lamp comprises a logic control device and a stroboscopic LED lamp which are connected with each other through wireless signals;
the logic control device judges the working states of the constant current driving circuit and the constant voltage driving circuit and the state of the constant current driving circuit and the state of the constant voltage driving circuit output to the stroboscopic LED lamp according to the states of the received camera control signals, and outputs control signals to the constant current circuit and the constant voltage circuit according to feedback signals of the constant current driving circuit and the constant voltage driving circuit;
the constant current driving circuit and the constant voltage driving circuit send control signals to the stroboscopic LED lamp in a driving output mode;
the constant current driving circuit feeds back the received control signal to the logic control device through constant current; the constant voltage driving circuit simultaneously feeds back the received control signal to the logic control device through constant voltage;
after receiving control signals sent by the constant current driving circuit and the constant voltage driving circuit through driving output, the stroboscopic LED lamp feeds back the stroboscopic LED lamp to the logic control device through a mode of LED driving state detection;
the stroboflash is as follows: the flicker is given by the camera at a frequency of 100 HZ.
The utility model has the beneficial effects that: in the existing scheme, in the process of turning on and turning off a stroboscopic LED lamp, millisecond-level stabilization time is required for stabilization of driving current, so that invalid energy consumption of a stroboscopic light supplement lamp in the intelligent traffic industry is not small, one fourth of energy consumption is wasted and the energy utilization rate is only about 75% when the stroboscopic light supplement lamp is calculated according to the conventional 100Hz frequency and 4ms light supplement time; although the improvement scheme of the existing scheme solves the energy waste in the closing process, nearly one eighth of the energy waste still exists in the opening process, and the energy utilization rate is about 87%.
The utility model effectively solves the problem that the time of the opening and closing process of the stroboscopic LED lamp constant-current driving circuit is longer, effectively reduces the energy consumption of the stroboscopic LED lamp in the intelligent traffic industry, and provides the energy utilization rate; the generation of useless energy consumption is reduced to the maximum extent; the energy utilization rate is improved to more than 98 percent; the energy utilization efficiency is greatly improved.
Drawings
FIG. 1 is a schematic flow diagram of the present invention;
FIG. 2 is a schematic diagram of the operating circuit of the present invention;
in the figure, 1 is a logic control device, and 2 is a stroboscopic LED lamp.
Detailed Description
In order to more clearly illustrate the technical solution of the present invention, the following detailed description is made with reference to the accompanying drawings:
as shown in the figure; a constant current driving system of a stroboscopic LED lamp comprises a logic control device 1 and a stroboscopic LED lamp 2 which are connected with each other through wireless signals;
the logic control device 1 judges the working states of the constant current driving circuit and the constant voltage driving circuit and the state of the constant current driving circuit and the state of the constant voltage driving circuit output to the stroboscopic LED lamp 2 according to the states of the received camera control signals, and outputs proper control signals to the constant current circuit and the constant voltage circuit according to feedback signals of the constant current driving circuit and the constant voltage driving circuit;
the constant current driving circuit and the constant voltage driving circuit send control signals to the stroboscopic LED lamp 2 in a driving output mode;
the constant current driving circuit feeds back the received control signal to the logic control device 1 through constant current; the constant voltage driving circuit simultaneously feeds back the received control signal to the logic control device 1 through constant voltage;
after receiving control signals sent by the constant current driving circuit and the constant voltage driving circuit through driving output, the stroboscopic LED lamp 2 feeds back the control signals to the logic control device 1 through a mode of LED driving state detection;
the stroboflash is as follows: the flicker is given by the camera at a frequency of 100 HZ.
The technical scheme adopted by the utility model is specifically as follows: the logic control device 1 judges the working state of the constant current and constant voltage driving circuit and the state of the output to the stroboscopic LED lamp 2 according to the state of the camera control signal, and outputs a proper control signal to the constant current and constant voltage circuit according to the feedback signal of the constant current and constant voltage circuit.
When the camera needs to turn off the stroboscopic LED lamp 2, the logic control device 1 can respond to the control signal at a time precision of ten nanoseconds, quickly calculate the control signal for turning off the stroboscopic LED lamp 2, and the constant-voltage constant-current circuit can turn off the output of the stroboscopic LED lamp 2 at a time precision of microseconds;
when the camera needs to turn on the stroboscopic LED lamp 2, the logic control device 1 can respond to the control signal on the time precision of ten nanoseconds, quickly calculate the control signal for turning on the stroboscopic LED lamp 2, and the constant-voltage constant-current circuit can turn on the stroboscopic LED lamp 2 to output on the time precision of microseconds and keep the stroboscopic LED lamp 2 under the designed output current condition.
When the camera is in a state of turning off the stroboscopic LED lamp 2, the logic control device 1 keeps the constant-current circuit off, and when the constant-voltage circuit works but does not output, preparation is made for quickly turning on the stroboscopic LED lamp 2.
The working circuit principle of the utility model is as follows: 1. after the light supplement lamp is powered on, the MCU sets the state of the light supplement lamp to be a state for turning off the stroboscopic LED lamp, and detects whether the state of the stroboscopic LED lamp is turned off or not through Q2; if the stroboscopic LED lamp is turned off, the initialization is finished;
2. after the initialization is finished, the MCU firstly outputs a constant voltage signal to the U2A, and the U2A controls the Q3 after differential amplification with the target voltage; meanwhile, the MCU outputs a bypass signal to U1A, and outputs a control signal to Q1 after the U1A and the target current are differentially amplified; under the condition of Q1 bypass, the switching frequency and the switching duty ratio of Q3 determine the voltage output to the stroboscopic LED lamp, and the MCU detects the voltage output to the stroboscopic LED lamp by detecting the output current of the OPT 1; the MCU adjusts the signal output to the U2A according to the requirement so as to adjust the voltage output to the stroboscopic LED lamp, so that the initial voltage of the stroboscopic LED lamp is stable, and the initialization of the constant-voltage circuit is completed; then, a disconnection signal is output to the U1A, the Q1 is controlled to be disconnected through the U1A, and the output of the stroboscopic LED lamp is turned off;
3. the light supplement lamp starts to detect an input signal from the input interface, and the input signal drives the photoelectric coupler to transmit the signal to the MCU after passing through the resistor R11;
4. when the MCU detects that the signal is switched from a closed state to an open state, the MCU firstly outputs a synchronous bypass signal to U1A, and outputs an open signal synchronous with the constant voltage signal to Q1 through U1A; then, the driving current is continuously detected for 1 millisecond through R5, then, a constant current control signal is calculated according to the detected current value and is output to U1A, and after the difference between the constant current control signal and the target current is amplified, the U1A outputs a control signal to Q1; meanwhile, the MCU outputs a bypass signal to the U2A, and controls a Q3 bypass through the U2A, so that the switching from a constant voltage circuit to a constant current circuit is completed, and the driving current of the stroboscopic LED lamp is kept unchanged;
5. when the MCU detects that the signal is switched from on to off, the MCU firstly outputs an open-circuit signal to U1A and U2A at the same time, and simultaneously turns off Q1 and Q3 so as to turn off the output, when the stroboscopic LED lamp is detected to be completely turned off through Q2, a constant-voltage signal is output to U1A, and after the stroboscopic LED lamp is amplified in difference with a target voltage, U1A is output to Q3 so as to prepare a constant-voltage state; waiting for a starting signal of a stroboscopic LED lamp; and the MCU always works circularly between the steps 3-5.
Claims (1)
1. A constant current driving system of a stroboscopic LED lamp is characterized by comprising a logic control device and the stroboscopic LED lamp which are connected with each other through wireless signals;
the logic control device judges the working states of the constant current driving circuit and the constant voltage driving circuit and the state of the constant current driving circuit and the state of the constant voltage driving circuit output to the stroboscopic LED lamp according to the states of the received camera control signals, and outputs control signals to the constant current circuit and the constant voltage circuit according to feedback signals of the constant current driving circuit and the constant voltage driving circuit;
the constant current driving circuit and the constant voltage driving circuit send control signals to the stroboscopic LED lamp in a driving output mode;
the constant current driving circuit feeds back the received control signal to the logic control device through constant current; the constant voltage driving circuit simultaneously feeds back the received control signal to the logic control device through constant voltage;
after receiving control signals sent by the constant current driving circuit and the constant voltage driving circuit through driving output, the stroboscopic LED lamp feeds back the stroboscopic LED lamp to the logic control device through a mode of LED driving state detection; the stroboflash is as follows: the flicker is given by the camera at a frequency of 100 HZ.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022990686.7U CN215529382U (en) | 2020-12-14 | 2020-12-14 | Constant current driving system of stroboscopic LED lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022990686.7U CN215529382U (en) | 2020-12-14 | 2020-12-14 | Constant current driving system of stroboscopic LED lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215529382U true CN215529382U (en) | 2022-01-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022990686.7U Active CN215529382U (en) | 2020-12-14 | 2020-12-14 | Constant current driving system of stroboscopic LED lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215529382U (en) |
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2020
- 2020-12-14 CN CN202022990686.7U patent/CN215529382U/en active Active
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