CN111787660A - Intelligent light and color adjusting control system circuit structure - Google Patents
Intelligent light and color adjusting control system circuit structure Download PDFInfo
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- CN111787660A CN111787660A CN202010763701.6A CN202010763701A CN111787660A CN 111787660 A CN111787660 A CN 111787660A CN 202010763701 A CN202010763701 A CN 202010763701A CN 111787660 A CN111787660 A CN 111787660A
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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
- H05B45/32—Pulse-control circuits
- H05B45/325—Pulse-width modulation [PWM]
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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]
- H05B45/10—Controlling the intensity of the light
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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]
- H05B45/20—Controlling the colour of the light
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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
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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
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- 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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Abstract
The invention relates to the technical field of circuit structures of intelligent control systems of lamps, and particularly discloses a circuit structure of an intelligent dimming and color mixing control system; the power supply system comprises a direct current power supply system, a discharge loop, an accelerated discharge loop after power failure, a chip power supply unit, a central control unit, an MOS tube switch circuit, an overload short-circuit protection circuit and a load circuit; the discharging loop comprises a seventh resistor, and the accelerated discharging loop is connected with the seventh resistor in parallel after the power is cut off; the central control unit is connected with the chip power supply unit and the MOS tube switch circuit; the chip power supply unit comprises an intelligent control module, and the central control unit comprises an integrated chip; the integrated chip receives the pulse width modulation signal of the intelligent control module, and the amplified pulse width modulation signal enhances the output of the pulse width modulation signal and drives the MOS tube switching circuit; the MOS tube switching circuit is connected with the overload short-circuit protection circuit and the load circuit; the circuit of the invention thoroughly solves the safety potential safety hazard, meets the living requirements of people, and conforms to the national 3C safety certification standard and the international safety certification standard.
Description
Technical Field
The invention relates to the technical field of circuit structures of intelligent lamp control systems, in particular to a circuit structure of an intelligent dimming and color mixing control system.
Background
With the development of decoration design, people have higher and higher requirements on indoor design, and the current popular design without a main lamp gradually enters the life of people and also starts to enter the application of the commercial lighting field. The most applied product in the design of no main lamp is a magnetic lamp, and the design industry of the current magnetic lamp uses a constant voltage of 48V as a system power supply. The main reason why 48V power supply is adopted for the magnetic suction lamp in the industry at present is that a corresponding circuit can be made only by selecting 48V voltage, and a voltage conversion control panel is made for supplying power to the LED light source so as to lighten the LED light source.
However, the design structure itself has defects due to the fact that the 48V voltage is used as the power supply, and no consideration is given to safety performance of safety regulations, the first point is that the 48V voltage is higher than the voltage range which can be sensed by a human body when touching, as is well known, the voltage below 36V is safe for the human body, but when the voltage is higher than 36V, a part of people with low self internal resistance impedance can feel an electric shock, for example, after touching by hands, the people with low self internal resistance impedance can feel numb. The second point is mainly characterized in that the magnetic attraction lamp is special in design structure, when a magnetic attraction lamp circuit works normally, a 48V power supply lead inside a track of the magnetic attraction lamp is an exposed part and is also a metal conductive part which can be touched by people at will, the 48V power supply voltage is 48V, and generally, adults touch a copper lead and have no sense of electric shock, but can feel the feeling of electric shock caused by hand numbness caused by children and some people with low resistance to internal resistance of the human body, although the electric shock is not fatal, the electric shock protection lamp does not meet the national safety requirements from the perspective of safety, and 48V power supply is not recommended. In addition, the conventional design is only limited to a single color temperature and fixed brightness design method, and the color temperature and the brightness of the product are required to be adjusted once the product is shaped and an ideal lighting effect is not achieved.
Disclosure of Invention
The invention provides a circuit structure of an intelligent dimming and color mixing control system, which thoroughly solves the safety potential safety hazard, meets the living requirements of people, and conforms to the national 3C safety certification standard and the international safety certification standard.
The technical scheme adopted by the invention is as follows: a circuit structure of an intelligent dimming and color-mixing control system comprises a direct-current power supply system, a discharge loop, an accelerated discharge loop after power failure, a chip power supply unit, a central control unit, an MOS (metal oxide semiconductor) tube switch circuit, an overload short-circuit protection circuit and a load circuit;
the discharging loop comprises a seventh resistor, and two ends of the seventh resistor are respectively connected with the anode and the cathode of the direct current power supply system; the accelerated discharge loop is connected with the seventh resistor in parallel after power failure;
the central control unit is connected with the chip power supply unit and the MOS tube switch circuit; the chip power supply unit comprises an intelligent control module, and the central control unit comprises an integrated chip; the integrated chip receives the pulse width modulation signal of the intelligent control module, and the amplified pulse width modulation signal enhances the output of the pulse width modulation signal and drives the MOS tube switching circuit;
and the MOS tube switching circuit is connected with the overload short-circuit protection circuit and the load circuit.
In the circuit structure of the intelligent dimming and toning control system, the resistor is used for current limiting, the diode is used for unidirectional conduction, the voltage stabilizing diode is used for voltage limiting and clamping, the triode and the MOS tube are conducted and cut off to be used as a switching tube, the capacitor filters and stores energy, the integrated chip IC is used for central control processing, the intelligent dimming and toning circuit system control is formed, the dimming and toning circuit system control is supplied with power through 24V voltage, the problem that a 48V power supply is required to be used for supplying power in the prior art is solved, safety potential safety hazards are thoroughly solved, the living requirements of people are met, the national 3C safety certification standard is met, and the international safety certification standard is also.
Drawings
Fig. 1 shows a schematic diagram of a frame structure of a circuit structure of an intelligent dimming and color-adjusting control system according to the present invention.
Fig. 2 is a schematic circuit diagram of a circuit structure of an intelligent dimming and color-adjusting control system according to the present invention.
Detailed Description
Fig. 1 is a schematic diagram of a frame structure of a circuit structure of an intelligent dimming and color-adjusting control system according to the present invention. Fig. 2 is a schematic diagram of a circuit structure of an intelligent dimming and color-adjusting control system according to the present invention; the circuit structure of the intelligent dimming and color-mixing control system comprises a direct-current power supply system 1, a discharge loop 2, an accelerated discharge loop 3 after power failure, a chip power supply unit 4, a central control unit 5, an MOS (metal oxide semiconductor) tube switch circuit 6, an overload short-circuit protection circuit 7 and a load circuit 8;
the discharging loop 2 comprises a seventh resistor R7, and two ends of the seventh resistor R7 are respectively connected with the anode and the cathode of the direct current power supply system; the accelerated discharge circuit 3 is connected in parallel with the seventh resistor R7 after power failure;
the central control unit 5 is connected with the chip power supply unit 4 and the MOS tube switching circuit 6; the chip power supply unit 4 comprises an intelligent control module, and the central control unit 5 comprises an integrated chip IC 2; the integrated chip 2 receives the pulse width modulation signal of the intelligent control module, and the amplified pulse width modulation signal enhances the output of the pulse width modulation signal and drives the MOS tube switching circuit 6; the MOS tube switch circuit 6 is connected with the overload short-circuit protection circuit 7 and the load circuit 8.
In the present invention, the dc power supply system 1 is a 24V dc power supply, and the accelerated discharge circuit 3 after power failure includes:
a first branch comprising a second diode D2 and an eighth resistor R8 connected in series; the second branch circuit comprises a first resistor R1 and a third triode Q3 which are connected in series; a third branch circuit comprising a fourth resistor R4 and a fourth triode Q4 which are connected in series; a fourth branch including a third diode D3; a fifth branch comprising a first capacitor C1;
a first node S1, a second node S2 and a third node S3 are arranged at the positive terminal of the dc power supply system 1, one end of the first resistor R1 is connected to the first node S1, and the other end is connected to the third triode Q3; a fifth node S5 is arranged between the first resistor R1 and the third triode Q3;
one end of the fourth resistor R4 is connected to the second node S2, and the other end is connected to the fourth transistor Q4; one end of the third diode D3 is connected to the third node S3, and the other end is connected to the negative electrode of the dc power supply system 1;
a second resistor R2 and a third resistor R3 which are connected in parallel are arranged between the first node S1 and the second node S2; a sixth node S6 is further arranged between the second diode D2 and the eighth resistor R8, the circuit structure further comprises a resistor R9, one end of the resistor R9 is connected to the sixth node S6, and the other end of the resistor R9 is connected with a base electrode of the third triode Q3; the base of the fourth triode Q4 is connected with the fifth node S5; in the invention, the fourth triode Q4 and the third triode Q3 are both NPN type triodes; the collector of the fourth triode Q4 is connected to the fourth resistor R4, and the emitter is connected to the negative pole of the DC power supply system; the collector of the third transistor Q3 is connected to the fifth node S5, and the emitter is connected to the negative electrode of the dc power supply system. In the invention, two ends of the first capacitor C1 are the positive electrode and the negative electrode of the output end of the accelerated discharge circuit 3 after power failure.
As a preferred embodiment, the intelligent control module is connected with an integrated chip IC2, and in the invention, the intelligent control module comprises a communication control chip IC1 which comprises four external output pins, and the integrated chip IC2 comprises eight pins; illustratively, in the communication control chip IC1, pin 1 is connected to a power supply port VCC, VCC in the invention is 3.3V, pin 2 is grounded, pin 3 and pin 4 are PWM pulse width modulation signal output terminals, and are connected to the integrated chip IC2, and the intelligent control module is provided with an antenna for external communication control, such as internet of things 2.4G, bluetooth, and WIFI combined communication, and can be accessed to mainstream intelligent ecosystems such as tianmao eidolon, millet, and the like, to perform dimming and color mixing control on light. Meanwhile, the device is compatible with 0-10V, DALI and Zigbee communication conversion transmission output, and realizes two-way PWM pulse width modulation output to the integrated chip IC 2.
In the invention, the MOS transistor switching circuit 6 is an enhanced acceleration-driven two-way PWM pulse width modulation-controlled MOS transistor switching circuit, and includes a sixth branch, a seventh branch, and an eighth branch, and the sixth branch, the seventh branch, the eighth branch, and the ninth branch are all connected to the IC 2.
Specifically, the sixth branch comprises a fifth resistor R5 and a first MOS transistor Q1; the seventh branch comprises a sixth resistor R6 and a second MOS transistor Q2; the eighth branch comprises a thirteenth resistor R13 and a third capacitor C3; the ninth branch comprises a tenth resistor R10 and a second capacitor C2;
the overload short-circuit protection circuit 7 comprises a third capacitor C3, a thirteenth resistor R13 and a fourteenth resistor R14, wherein the third capacitor C3 and the thirteenth resistor R13 are connected with the integrated chip IC 2; the fourteenth resistor R14 is connected to the S poles of the first MOS transistor Q1 and the second MOS transistor Q2; the fifth resistor R5 is connected with the G pole of the first MOS transistor Q1, an eighth node is arranged between the fifth resistor R5 and the first MOS transistor, and the sixth resistor R6 is connected with the G pole of the second MOS transistor Q2 and a ninth node is arranged between the sixth resistor R6 and the G pole of the second MOS transistor Q2; a tenth node is arranged between the integrated chip IC2 and the thirteenth resistor R13, the thirteenth resistor R13 is connected with the S pole of the first MOS transistor Q1, and an eleventh node S11 is arranged between the thirteenth resistor R13 and the first MOS transistor Q1;
a twelfth node S12 and a thirteenth node S13 are arranged between the second capacitor C2 and the fourteenth resistor R14, and a fourteenth node S14 is arranged between the fourteenth resistor R14 and the S pole of the second MOS transistor Q2;
the ninth branch is connected with a power supply port VCC, and a fifteenth node S15 is arranged between the ninth branch and the power supply port VCC;
an eleventh resistor R11 is arranged between the eighth node S8 and the eleventh node S11, and a twelfth resistor R12 is arranged between the ninth node and the fourteenth node S14; a thirteenth resistor R13 is arranged between the tenth node S10 and the eleventh node S11, and a resistor R10 is arranged between the fifteenth node S15 and the twelfth node S12; a third capacitor C3 is arranged between the tenth node S10 and the thirteenth node S13;
in the invention, the integrated chip IC2 comprises eight pins, namely a 1 st pin and a 2 nd pin which are respectively connected with a 3 rd pin and a 4 th pin of a communication control chip IC1 in an intelligent control module; the 3 rd pin is connected with the anode of the output end of the accelerated discharge circuit 3 after power failure, the 4 th pin is grounded, the 5 th pin is connected with the ninth branch circuit, namely is connected with the second capacitor C2 and the tenth resistor, namely is connected with the fifteenth node S15, and meanwhile, the 5 th pin is also connected with a power supply port VCC; the 6 th pin is connected with the eighth branch, namely connected with a tenth node S10; the 7 th pin is connected with the seventh branch, namely, the sixth resistor R6, and the 8 th pin is connected with the sixth branch, namely, the fifth resistor R5.
As an implementation mode, the present invention further includes a MOS transistor accelerated heat dissipation processing apparatus 9, which includes an aluminum heat sink fixed on the surface of the MOS transistor and is used to increase the heat dissipation area on the surface of the MOS transistor and reduce the operating temperature of the MOS transistor.
In the invention, the load circuit 8 comprises two structures, namely a dimming circuit and a color modulation circuit, the dimming circuit comprises a fifteenth resistor R15 and a first LED group which are connected in series, and the first LED group comprises a plurality of first LEDs which are connected in series; such as light emitting diodes LED1A, LED2A, LED3A …, to LEDNA;
the color matching circuit comprises a sixteenth resistor R16 and a second light emitting diode group which are connected in series, wherein the second light emitting diode group comprises a plurality of second light emitting diodes which are connected in series; such as the light emitting diodes LED1B, LED2B, LED3B …, to LEDNB.
The fifteenth resistor R15 is connected with the positive electrode of the direct-current power supply, and the first light-emitting diode group is connected with the D electrode of the first MOS tube;
the sixteenth resistor R16 is connected to the positive electrode of the dc power supply, and the second light emitting diode group is connected to the D-pole of the second MOS transistor.
In the invention, each light emitting diode in the first light emitting diode group is connected with a resistor in parallel; for example, R1A, R2A, R3A … corresponding to LED1A, LED2A, LED3A …, to LEDNA, to RNA; in the second light-emitting diode group, each light-emitting diode is also connected with a resistor in parallel; R1B, R2B, R3B …, to RNB corresponding to LED1B, LED2B, LED3B …, to LEDNB.
The circuit working principle of the invention is as follows: the input end is normally electrified, 24V direct current is input, the current passes through a diode D1, a voltage stabilizing diode D2, a resistor R9 and the base electrode of a triode Q3 to an emitter, the triode Q3 is conducted, and because Vce during conduction is about 0.3V, at the moment, the triode Q4 is cut off, and the main current of the input end flows to the output end after voltage limiting and clamping are carried out on the resistor R2, the resistor R3 and the voltage stabilizing diode D3 to supply power for a rear-stage load. At this time, the whole circuit is in a normal working state, the resistance values of the resistor R9 and the resistor R1 are large, the current is small, the loss is little, and the power supply of the later stage is not influenced. When the power supply current enters the integrated chip IC2, the integrated IC2 enters a normal working state, the integrated IC2 mainly comprises two input ends, two output ends and a protection port, and simultaneously supplies power for the intelligent control module, the intelligent control module works in such a way that the controlled device sends an instruction, the instruction is processed and converted by the intelligent control module to form two paths of PWM pulse width modulation signals, the two paths of PWM pulse width modulation signals are output from the two output ends of the intelligent control module and enter the main control chip IC2, the main control chip carries out modulation conversion processing on the band pulse width modulation signals again, the two paths of PWM pulse width modulation signals are converted into in-phase pulse width modulation signals with higher potential and output, the two paths of PWM pulse width modulation signals are respectively driven by the resistors R5 and R6 to drive the MOS transistors Q1 and Q2, the drive output.
The circuit also has overload and short-circuit protection functions, and the specific realization method is that a detection resistor R14 with overload and short-circuit protection functions is used as output to detect, judge and process in real time. When current flows through the resistor R14, the voltage across the resistor R14 increases, and the current sample is converted into a voltage sample that is passed through the resistor R13 and the capacitor C2 to the test port of the IC 2. When the detection voltage is larger than the threshold voltage of the detection port of the integrated chip IC2, the IC2 closes the output, thereby realizing the protection under the abnormal conditions of overload, short circuit and the like and playing the role of effectively protecting the product.
The circuit also has a function of accelerating discharge after power failure, and the specific realization method is that when the input end is powered off, the input voltage is reduced, when the input voltage drops to be lower than the sum of the voltage of a voltage stabilizing diode D2 and the voltage of an emitting junction of a triode Q3 to be 0.7V, the triode Q3 is cut off, current flows to a base electrode to an emitting electrode of the triode Q4 through a resistor R1 at the moment, the triode Q4 is rapidly conducted, and meanwhile, because the resistance value of a resistor R4 is small, the formed discharge current is large, so that the electric quantity stored in the input end and a capacitor C1 is rapidly discharged, and the purpose of accelerating discharge after the power failure of a power supply end is. The whole circuit structure realizes accelerated discharge after the circuit is powered off, and is beneficial to the rapid reset of the output load, so that the output load can rapidly enter a normal working state in the subsequent power-on operation.
The circuit also solves the problem of residual light after power failure, the power failure is divided into two types, namely 1 physical power failure and 2 logical power failure, the physical power failure cuts off a live wire, and the state does not have any residual light; the intelligent product usually adopts logic power-off, when the logic power-off, the zero-live wire still keeps the charged state of normal connection, only uses logic control to turn off the internal chip circuit, so as to stop output, but because the internal circuit includes the high-impedance loop of the luminous body device to the ground or the shell or to the human body, the existence of weak voltage can change the P/N junction in the LED, the N-region electron can absorb energy, become the electron with energy state, and enter the P-region with cavity, so as to form the electron directional movement, generate weak current, the LED lamp is very sensitive to weak current, the weak energy is expressed in the form of light, namely the external expression form of the weak residual light which is seen by people, so that the residual light exists after the LED is powered off.
The specific circuit implementation method comprises the following steps: each LED light source is connected with a discharge resistor in parallel, the resistance value range is 100 ohm-100 mega ohm, 10K ohm is selected to be appropriate, and the LED light source has weak energy absorption capacity and large impedance and small loss. The weak voltage is absorbed by the bypass resistor, so that the P/N junction of the LED keeps a relatively balanced state, and directional movement of electrons is not generated, thereby solving the problem of residual light generation. The method for connecting the LED semiconductor light-emitting device with the discharge resistor in parallel and increasing the release loop can effectively solve the problem that the modern intelligent product has residual light after turning off the lamp.
In the circuit structure of the intelligent dimming and toning control system, a resistor is used for limiting current, a diode is used for unidirectional conduction, a voltage stabilizing diode is used for voltage limiting and clamping, a triode and an MOS (metal oxide semiconductor) tube are conducted and cut off to be used as a switching tube, capacitance filtering energy storage is realized, an integrated chip IC (integrated circuit) is used for central control processing, the control of the intelligent dimming and toning circuit system is formed, the dimming and toning circuit is supplied with power through 24V voltage, the traditional problem that a 48V power supply is used for supplying power is solved, safety potential safety hazards are thoroughly solved, the living requirements of people are met, the national 3C safety certification standard is met, and the international safety certification; but also has overload and short-circuit protection functions, accelerated discharge function after power failure, and strong practicability.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (10)
1. A circuit structure of an intelligent dimming and color mixing control system is characterized by comprising a direct current power supply system, a discharge loop, an accelerated discharge loop after power failure, a chip power supply unit, a central control unit, an MOS tube switch circuit, an overload short-circuit protection circuit and a load circuit;
the discharging loop comprises a seventh resistor, and two ends of the seventh resistor are respectively connected with the anode and the cathode of the direct current power supply system; the accelerated discharge loop is connected with the seventh resistor in parallel after power failure;
the central control unit is connected with the chip power supply unit and the MOS tube switch circuit; the chip power supply unit comprises an intelligent control module, and the central control unit comprises an integrated chip; the integrated chip receives the pulse width modulation signal of the intelligent control module, and the amplified pulse width modulation signal enhances the output of the pulse width modulation signal and drives the MOS tube switching circuit;
and the MOS tube switching circuit is connected with the overload short-circuit protection circuit and the load circuit.
2. The circuit arrangement of claim 1, wherein the post-power-down accelerated discharge loop comprises:
a first branch comprising a second diode and an eighth resistor connected in series; the second branch circuit comprises a first resistor and a third triode which are connected in series; the third branch circuit comprises a fourth resistor and a fourth triode which are connected in series; a fourth branch comprising a third diode; a fifth branch comprising a first capacitor;
a first node, a second node and a third node are arranged on the positive terminal of the direct-current power supply system, one end of the first resistor is connected to the first node, and the other end of the first resistor is connected with the third triode; a fifth node is arranged between the first resistor and the third triode;
one end of the fourth resistor is connected to the second node, and the other end of the fourth resistor is connected with the fourth triode; one end of the third diode is connected to the third node, and the other end of the third diode is connected to the negative electrode of the direct-current power supply system;
a second resistor and a third resistor which are connected in parallel are arranged between the first node and the second node; a sixth node is arranged between the second diode and the eighth resistor, the circuit structure further comprises a ninth resistor, one end of the ninth resistor is connected to the sixth node, and the other end of the ninth resistor is connected with the base electrode of the third triode; and the base electrode of the fourth triode is connected with the fifth node.
3. The circuit structure of claim 2, wherein the smart control module is connected to the integrated chip, and the smart control module has an antenna.
4. The circuit structure of claim 3, wherein the MOS transistor switch circuit comprises a sixth branch, a seventh branch, an eighth branch and a ninth branch, and the sixth branch, the seventh branch, the eighth branch and the ninth branch are all connected to the integrated chip.
5. The circuit structure of claim 4, wherein the sixth branch comprises a fifth resistor and a first MOS transistor; the seventh branch comprises a sixth resistor and a second MOS tube; the eighth branch comprises a thirteenth resistor and a third capacitor; the ninth branch comprises a tenth resistor and a second capacitor.
6. The circuit structure of claim 5, wherein the overload short-circuit protection circuit comprises a third capacitor, a thirteenth resistor and a fourteenth resistor, the third capacitor and the thirteenth resistor being connected to the integrated chip; and the fourteenth resistor is connected with S poles of the first MOS tube and the second MOS tube.
7. The circuit structure of claim 6, wherein the fifth resistor is connected to the pole of the first MOS transistor, an eighth node is provided between the fifth resistor and the first MOS transistor, and a ninth node is provided between the sixth resistor and the pole of the second MOS transistor; a tenth node is arranged between the integrated chip and a thirteenth resistor, the thirteenth resistor is connected with the S pole of the first MOS tube, and an eleventh node is arranged between the thirteenth resistor and the first MOS tube;
a twelfth node and a thirteenth node are arranged between the second capacitor and the fourteenth resistor, and a fourteenth node is arranged between the fourteenth resistor and the S pole of the second MOS transistor;
and the ninth branch is connected with the PWM and power supply port VCC, and a fifteenth node is arranged between the ninth branch and the PWM and power supply port VCC.
8. The circuit structure of claim 7, wherein an eleventh resistor is disposed between the eighth node and the eleventh node, and a twelfth resistor is disposed between the ninth node and the fourteenth node; a thirteenth resistor is arranged between the tenth node and the eleventh node, and a tenth resistor is arranged between the fifteenth node and the twelfth node; and a third capacitor is arranged between the tenth node and the thirteenth node.
9. The circuit arrangement of claim 8, wherein the load circuit comprises a dimming circuit and a toning circuit, the dimming circuit comprising a fifteenth resistor and a first group of light emitting diodes connected in series, the first group of light emitting diodes comprising a number of first light emitting diodes connected in series;
the color matching circuit comprises a sixteenth resistor and a second light emitting diode group which are connected in series, wherein the second light emitting diode group comprises a plurality of second light emitting diodes which are connected in series;
the fifteenth resistor is connected with the positive electrode of the direct-current power supply, and the first light-emitting diode group is connected with the D electrode of the first MOS tube;
and the sixteenth resistor is connected with the anode of the direct-current power supply, and the second light-emitting diode group is connected with the D pole of the second MOS tube.
10. The circuit structure of claim 9, wherein each led in the first group of leds is connected in parallel with a resistor; in the second LED group, each LED is also connected with a resistor in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010763701.6A CN111787660B (en) | 2020-08-01 | 2020-08-01 | Intelligent dimming and toning control system circuit structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010763701.6A CN111787660B (en) | 2020-08-01 | 2020-08-01 | Intelligent dimming and toning control system circuit structure |
Publications (2)
| Publication Number | Publication Date |
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| CN111787660A true CN111787660A (en) | 2020-10-16 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016184026A1 (en) * | 2015-05-19 | 2016-11-24 | 中兴通讯股份有限公司 | Circuit for slowly starting power supply loop to discharge electricity |
| CN106300606A (en) * | 2016-08-25 | 2017-01-04 | 苏州苏宝新能源科技有限公司 | Solar airconditioning control system |
| WO2017152325A1 (en) * | 2016-03-06 | 2017-09-14 | 张舒维 | Smart home based new home anti-theft system |
| CN108770136A (en) * | 2018-08-17 | 2018-11-06 | 东莞邦达五金有限公司 | A kind of light modulation toning LED isolation constant-current driving power supplies |
| CN212573040U (en) * | 2020-08-01 | 2021-02-19 | 中山市承智照明科技有限公司 | Intelligent light and color adjusting control system circuit structure |
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2020
- 2020-08-01 CN CN202010763701.6A patent/CN111787660B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016184026A1 (en) * | 2015-05-19 | 2016-11-24 | 中兴通讯股份有限公司 | Circuit for slowly starting power supply loop to discharge electricity |
| WO2017152325A1 (en) * | 2016-03-06 | 2017-09-14 | 张舒维 | Smart home based new home anti-theft system |
| CN106300606A (en) * | 2016-08-25 | 2017-01-04 | 苏州苏宝新能源科技有限公司 | Solar airconditioning control system |
| CN108770136A (en) * | 2018-08-17 | 2018-11-06 | 东莞邦达五金有限公司 | A kind of light modulation toning LED isolation constant-current driving power supplies |
| CN212573040U (en) * | 2020-08-01 | 2021-02-19 | 中山市承智照明科技有限公司 | Intelligent light and color adjusting control system circuit structure |
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| CN111787660B (en) | 2024-06-11 |
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