CN215956688U - Intelligent TRIAC dimming circuit - Google Patents
Intelligent TRIAC dimming circuit Download PDFInfo
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- CN215956688U CN215956688U CN202122308951.3U CN202122308951U CN215956688U CN 215956688 U CN215956688 U CN 215956688U CN 202122308951 U CN202122308951 U CN 202122308951U CN 215956688 U CN215956688 U CN 215956688U
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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
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Abstract
An intelligent TRIAC dimming circuit belongs to the technical field of dimming circuits. The utility model is connected between a mains supply and a load, and comprises a zero-crossing detection circuit, a Bluetooth module, a dimming circuit and a power supply circuit, wherein the Bluetooth module is respectively connected with the zero-crossing detection circuit, the dimming circuit and the power supply circuit, the zero-crossing detection circuit is used for detecting a zero-crossing signal of input alternating current and outputting the zero-crossing signal to the Bluetooth module, the Bluetooth module outputs a trigger signal to the dimming circuit according to the input zero-crossing signal, the dimming circuit receives the trigger signal and performs dimming, and the power supply circuit provides working voltage for the Bluetooth module. According to the utility model, the Bluetooth module is arranged in the light modulator, so that the light modulator has an intelligent adjusting function, and intelligent devices such as an intelligent sound box and a mobile phone can be used for voice or remote adjustment; meanwhile, the dimmer can be manually adjusted by setting the change-over switch and the keys, so that the dimming mode of the dimmer is expanded.
Description
Technical Field
The utility model belongs to the technical field of dimming circuits, and particularly relates to an intelligent TRIAC dimming circuit.
Background
A TRIAC dimmer is a dimmer that performs dimming by changing the phase of an input voltage in a phase-cut manner, and is generally used for dimming an incandescent lamp, and is also applied to an LED lighting product as the LED lighting product replaces the incandescent lamp. The traditional TRIAC dimmer can only dim light through a knob or a key on the dimmer, and in recent years, with the development of wireless intelligent technology, intelligent lighting products are also applied. The intelligent lighting product can be used for dimming through the TRIAC dimmer and also can be used for dimming wirelessly such as Bluetooth, a wireless control module is usually added in the LED lighting product, the existing LED lighting product needs to be replaced when the intelligent lighting product is used, and therefore a large amount of common silicon controlled rectifier dimming LED lamps are replaced, and resource waste is caused.
Disclosure of Invention
The utility model mainly solves the technical problems in the prior art and provides an intelligent TRIAC dimming circuit.
The technical problem of the utility model is mainly solved by the following technical scheme: the utility model provides an intelligence TRIAC dimmer circuit, connects between commercial power and load, includes zero cross detection circuit, bluetooth module, dimmer circuit and supply circuit, bluetooth module links to each other with zero cross detection circuit, dimmer circuit, supply circuit respectively, zero cross detection circuit is used for detecting the zero cross signal of input alternating current to with zero cross signal output to bluetooth module, bluetooth module outputs trigger signal according to the zero cross signal of input and gives dimmer circuit, dimmer circuit receives trigger signal and adjusts luminance, supply circuit provides operating voltage for bluetooth module.
Preferably, the system further comprises a change-over switch for switching different platforms according to the Bluetooth connection requirement and a key for controlling the load switch and dimming, wherein the change-over switch and the key are connected with the Bluetooth module.
Preferably, the number of the keys is three, and the three keys are respectively used for controlling the load switch, the upward dimming and the downward dimming.
Preferably, the bluetooth module further comprises a dimming indicator lamp for indicating a dimming stage and a switch indicator lamp for indicating a dimming switch state, the dimming indicator lamp and the switch indicator lamp are both connected to the bluetooth module, the dimming indicator lamps are arranged in multiple numbers according to dimming value ranges, when dimming brightness of a load is in the dimming value range of one of the dimming indicator lamps, one of the dimming indicator lamps and the dimming indicator lamp lower than the dimming value range of the one dimming indicator lamp are both turned on, the dimming indicator lamp higher than the dimming value range of the one dimming indicator lamp is turned off, and the one dimming indicator lamp displays corresponding brightness under driving of a PWM effective width value corresponding to the output.
Preferably, the dimming indicator lamps include a first dimming indicator lamp for indicating a dimming value of 1% -20%, a second dimming indicator lamp for indicating a dimming value of 21% -40%, a third dimming indicator lamp for indicating a dimming value of 41% -60%, a fourth dimming indicator lamp for indicating a dimming value of 61% -80%, and a fifth dimming indicator lamp for indicating a dimming value of 81% -100%.
Preferably, the bluetooth module is provided with 24 pins, a first pin and a fourteenth pin of the bluetooth module are respectively used for connecting an input end and an output end of a multi-machine single-wire communication circuit, a second pin of the bluetooth module is connected with a zero-crossing detection circuit, a third pin of the bluetooth module is connected with a dimming circuit, fourth pins to eighth pins and a seventeenth pin of the bluetooth module are used for connecting a dimming indicator lamp and a switch indicator lamp, a ninth pin of the bluetooth module is grounded, a tenth pin of the bluetooth module is connected with one end of a capacitor C4 and a power supply circuit, the other end of the capacitor C4 is grounded, a tenth pin, a twelfth pin, an eighteenth pin and a twenty-second pin of the bluetooth module are used for connecting a change-over switch and a key, a thirteenth pin of the bluetooth module is grounded, a fifteenth pin and a sixteenth pin of the bluetooth module are used for connecting a serial port debugging socket, and the nineteenth pin and the twenty-fourth pin of the bluetooth module are grounded, and the twentieth pin, the twenty-first pin and the twenty-third pin of the Bluetooth module are used for connecting a firmware programming socket.
Preferably, the dimming circuit comprises an air isolating switch K5, a fuse F1, an inductor L2, a varistor RV1, a resistor R9, a resistor R10, a resistor R12, a resistor R13, a resistor R14, a resistor R15, a capacitor C15, a triac Q15, a triode Q15, and an optocoupler U15, wherein one end of the air isolating switch K15 is connected to an input end of a mains live wire, the other end of the air isolating switch K15 is connected to one end of the fuse F15, the other end of the fuse F15 is connected to one end of the varistor RV 15 and one end of the capacitor C15, a common connection end of the fuse is grounded, the other end of the capacitor C15 is connected to one end of the resistor R15, the other end of the resistor R15 is connected to one main electrode of the varistor RV 15, one end of the inductor L15, one main electrode of the triac Q15 and the other main electrode of the triac Q15 are grounded, the control pole of bidirectional thyristor Q1 connects the one end of electric capacity C7, resistance R14 respectively, the output of the same way of opto-coupler U1, electric capacity C7's the other end and resistance R14's the other end all ground connection, another termination opto-coupler U1's another way output of resistance R10, the input of the same way of opto-coupler U1 is passed through resistance R12 and is connected with supply circuit, another input termination triode Q2's collecting electrode of opto-coupler U1, resistance R13's one end and resistance R15's one end are connected to triode Q2's base, triode Q2's the projecting pole and resistance R15's the other end all ground connection, another termination of resistance R13 the bluetooth module.
Preferably, the zero-cross detection circuit includes a resistor R17, a capacitor C9, a schottky diode D4, and a schottky diode D5, one end of the resistor R17 is respectively connected to the input ends of the power supply circuit and the mains zero line, the other end of the resistor R17 is respectively connected to the positive electrodes of the bluetooth module, the schottky diode D4, and the schottky diode D5, the negative electrode of the schottky diode D4 is connected to the power supply circuit, the positive electrode of the schottky diode D5 is grounded, and the capacitor C9 is connected in parallel to the schottky diode D5.
Preferably, a fuse FR1 is connected in series between the resistor R17 and the input end of the mains zero line.
Preferably, the power supply circuit adopts a half-wave rectification non-isolated power supply and is in a structure of a live wire common signal ground.
The utility model has the following beneficial effects: according to the utility model, the Bluetooth module is arranged in the light modulator, so that the light modulator has an intelligent adjusting function, and intelligent devices such as an intelligent sound box and a mobile phone can be used for voice or remote adjustment; meanwhile, the dimmer can be manually adjusted by setting the change-over switch and the keys, so that the dimming mode of the dimmer is expanded. When the intelligent control system is used, the common silicon controlled dimming LED lamp can be intelligently controlled by only replacing the existing dimmer, so that the replacement cost is reduced, and the excessive waste of resources is avoided.
Drawings
FIG. 1 is a block circuit diagram of the present invention;
FIG. 2 is a schematic diagram of a dimmer according to the present invention;
FIG. 3 is a circuit diagram of a Bluetooth module of the present invention;
FIG. 4 is a circuit diagram of the dimming circuit of the present invention;
FIG. 5 is a circuit diagram of the zero crossing detection circuit of the present invention;
FIG. 6 is a circuit diagram of a connection between the dimming indicator light and the on-off indicator light of the present invention;
FIG. 7 is a circuit diagram of the key of the present invention;
FIG. 8 is a circuit diagram of a diverter switch according to the present invention;
FIG. 9 is a circuit diagram of the power supply circuit of the present invention;
fig. 10 is a schematic phase-cut diagram of the present invention during dimming.
In the figure: 1. a zero-crossing detection circuit; 2. a Bluetooth module; 3. a dimming circuit; 4. a power supply circuit; 5. a switch; 6. pressing a key; 7. a dimming indicator light; 8. switching on and off an indicator light; 9. a dimmer.
Detailed Description
The technical scheme of the utility model is further specifically described by the following embodiments and the accompanying drawings.
Example (b): an intelligent TRIAC dimming circuit is connected between a mains supply and a load as shown in fig. 1-9, and comprises a zero-crossing detection circuit 1, a Bluetooth module 2, a dimming circuit 3 and a power supply circuit 4, wherein the Bluetooth module 2 is respectively connected with the zero-crossing detection circuit 1, the dimming circuit 3 and the power supply circuit 4, the zero-crossing detection circuit 1 is used for detecting a zero-crossing signal of an input alternating current and outputting the zero-crossing signal to the Bluetooth module 2, the Bluetooth module 2 outputs a trigger signal to the dimming circuit 3 according to the input zero-crossing signal, the dimming circuit 3 receives the trigger signal and performs dimming, and the power supply circuit 4 provides working voltage for the Bluetooth module 2.
The intelligent TRIAC dimming circuit further comprises a selector switch 5 and a key 6, wherein the selector switch 5 and the key 6 are both connected with the Bluetooth module 2, and the selector switch 5 can switch different platforms according to Bluetooth connection requirements, for example, the selector switch 5 is switched to a Google platform when being turned on, and is switched to an Amazon platform when the selector switch 5 is turned off; the key 6 is used for controlling the load switch and dimming, the key 6 can adopt an integral structure integrating switching and dimming, and a plurality of keys 6 can also be adopted to respectively control the load switch and dimming independently. For convenience of operation, the keys 6 may be provided in three, which are a switch key for controlling the load switch, an up dimming key for brightness increase, and a down dimming key for brightness decrease, respectively.
The intelligent TRIAC dimming circuit further comprises dimming indicator lamps 7 used for indicating dimming stages and switch indicator lamps 8 used for indicating dimming on-off states, the dimming indicator lamps 7 and the switch indicator lamps 8 are connected with the Bluetooth module 2, the dimming indicator lamps 7 are arranged in multiple numbers according to dimming value ranges, when dimming brightness of a load is in the dimming value range of one dimming indicator lamp 7, one dimming indicator lamp 7 and the dimming indicator lamp 7 lower than the dimming value range of one dimming indicator lamp 7 are both turned on, the dimming indicator lamp 7 higher than the dimming value range of one dimming indicator lamp 7 is turned off, and one dimming indicator lamp 7 displays corresponding brightness under the driving of the PWM effective width value corresponding to output.
In this embodiment, the dimming indicator lamps 7 are provided with five dimming indicator lamps for indicating different dimming stages, and the dimming indicator lamps 7 include a first dimming indicator lamp for indicating a dimming value of 1% -20%, a second dimming indicator lamp for indicating a dimming value of 21% -40%, a third dimming indicator lamp for indicating a dimming value of 41% -60%, a fourth dimming indicator lamp for indicating a dimming value of 61% -80%, and a fifth dimming indicator lamp for indicating a dimming value of 81% -100%; the first light modulation indicating lamp, the second light modulation indicating lamp, the third light modulation indicating lamp, the fourth light modulation indicating lamp and the fifth light modulation indicating lamp can use the LED lamp bead with the same color, such as emerald green. When the dimming control circuit is used, for example, when the dimming value of the load is 76%, the first dimming indicator lamp, the second dimming indicator lamp and the third dimming indicator lamp are all turned on, the fifth dimming indicator lamp is turned off, and the fourth dimming indicator lamp displays certain brightness under the driving of the PWM effective width value corresponding to the actual output size.
In this embodiment, the switch indicator light 8 is used for indicating on and off of dimming, and the switch indicator light 8 may use an LED lamp bead of another color for distinguishing from the dimming indicator light 7, such as white. The switch indicator light 8 is arranged in a switch key for controlling the load switch; when waiting for the wireless distribution network, the switch indicator light 8 will flash slowly; when the switch key is off, the switch indicator light 8 is slightly bright under the drive of 1KHz PWM at a low level of 30% as a night indication of the position of the switch key, so that the manual dimming of the dimmer 9 is facilitated in the dark.
The bluetooth module is equipped with 24 feet, bluetooth module's first foot, fourteenth foot are used for connecing multimachine single wire communication circuit's input and output respectively, bluetooth module's second foot connects the other end of zero cross detection circuit 1 middle resistance R17, bluetooth module's third foot connects the other end of dimming circuit 3 middle resistance R13, bluetooth module's fourth foot to eighth foot and seventeenth foot are used for connecing dimming pilot lamp 7 and switch pilot lamp 8, specifically do: as shown in fig. 3 and fig. 6, the fourth pin of the bluetooth module is connected to the negative electrode of the lamp bead LED1 (i.e. the first dimming indicator) through a resistor R1, the fifth pin of the bluetooth module is connected to the negative electrode of the lamp bead LED2 (i.e. the second dimming indicator) through a resistor R2, the sixth pin of the bluetooth module is connected to the negative electrode of the lamp bead LED3 (i.e. the third dimming indicator) through a resistor R4, the seventh pin of the bluetooth module is connected to the negative electrode of the lamp bead LED4 (i.e. the fourth dimming indicator) through a resistor R5, the eighth pin of the bluetooth module is connected to the negative electrode of the lamp bead LED5 (i.e. the fifth dimming indicator) through a resistor R6, the seventeenth pin of the bluetooth module is connected to the negative electrode of the lamp bead LED6 (i.e. the on-off indicator) through a resistor R7, the positive electrode of the LED lamp bead 1, the positive electrode of the LED lamp bead 2, the positive electrode of the LED3, the positive electrode of the LED4, the positive electrode of the LED5 and the positive electrode of the LED lamp bead 6 are connected to the power supply circuit. The ninth foot of bluetooth module ground connection, the tenth foot of bluetooth module connects one end and the supply circuit 4 of electric capacity C4, the other end ground connection of electric capacity C4, the eleventh foot, the twelfth foot, the eighteenth foot, the twenty-second foot of bluetooth module are used for connecing change over switch 5 and button 6, specifically do: as shown in fig. 3, 7 and 8, the eleventh pin of the bluetooth module is connected to the switch K2 (i.e., the upward dimming key), the twelfth pin of the bluetooth module is connected to the switch K4 (i.e., the downward dimming key), the eighteenth pin of the bluetooth module is connected to the switch K1 (i.e., the switch key), and the twenty-second pin of the bluetooth module is connected to the switch K3 (i.e., the switch 5). The thirteenth pin and the twelfth pin of the Bluetooth module are grounded, the fifteenth pin and the sixteenth pin of the Bluetooth module are used for connecting a debugging serial port socket, the nineteenth pin and the twenty-fourth pin of the Bluetooth module are grounded, and the twentieth pin, the twenty-first pin and the twenty-third pin of the Bluetooth module are used for connecting a firmware programming socket. The model of the Bluetooth module is TC6203B _ FLASH manufactured by the company and supports Bluetooth 4.2BLE Mesh.
The dimming circuit 3 comprises an air isolating switch K5, a fuse F1, an inductor L2, a varistor RV1, a resistor R9, a resistor R10, a resistor R12, a resistor R13, a resistor R14, a resistor R15, a capacitor C15, a triac Q15, a triode Q15, and an optocoupler U15, wherein one end of the air isolating switch K15 is connected to an input end of a mains live wire, the other end of the air isolating switch K15 is connected to one end of the fuse F15, the other end of the fuse F15 is connected to one end of the varistor RV 15 and one end of the capacitor C15, a common connection end of the fuse is grounded, the other end of the capacitor C15 is connected to one end of the resistor R15, the other end of the resistor R15 is connected to one main electrode of the varistor R15, one end of the inductor L15, one main electrode of the triac Q15 is connected to the ground, and the other output end of the varistor Q15 is connected to the ground, the control pole of bidirectional thyristor Q1 connects the one end of electric capacity C7, the one end of resistance R14, the output of the same way of opto-coupler U1 respectively, electric capacity C7's the other end and resistance R14's the other end all ground connection, another termination opto-coupler U1's another way output of resistance R10, the input of the same way of opto-coupler U1 is passed through resistance R12 and is connected with supply circuit 4, another input termination triode Q2's of opto-coupler U1 collecting electrode, resistance R13's one end and resistance R15's one end are connected to triode Q2's base, triode Q2's projecting pole and resistance R15's the other end all ground connection, another termination of resistance R13 the third foot of bluetooth module 2.
In the dimming circuit 3, an air isolating switch K5 is set according to the American safety standard UL and is used for controlling the on-off of the whole circuit; the inductor L2 and the piezoresistor RV1 are respectively used for current limiting and overvoltage protection; the resistor R9 and the capacitor C6 form an RC damping circuit, so that the effect of peak absorption is achieved, and the influence of voltage mutation on the bidirectional thyristor Q1 is prevented; the triode Q2 controls the on-off of the bidirectional thyristor Q1 by controlling the on-off of the optocoupler U1. Specifically, bluetooth module 2 sends a changeable trigger signal in relative zero-crossing time position and makes triode Q2 switch on, and the input of opto-coupler U1 switches on this moment to make opto-coupler U1's output switch on, control bidirectional thyristor Q1's control pole switches on, and then adjusts luminance to bidirectional thyristor Q1.
Zero cross detection circuit 1 includes resistance R17, electric capacity C9, schottky diode D4 and schottky diode D5, the input of supply circuit 4 and commercial power zero line is connect respectively to resistance R17's one end, resistance R17's the other end connects respectively bluetooth module 2's second foot, schottky diode D4's positive pole, schottky diode D5's negative pole, schottky diode D4's negative pole connects supply circuit 4, schottky diode D5's positive pole ground connection, electric capacity C9 connects schottky diode D5 in parallel.
In the zero-crossing detection circuit 1, a resistor R17 and a capacitor C9 form an RC integral filter circuit, and alternating current signals are properly delayed, smoothed, anti-interference and the like; the Schottky diode D4 and the Schottky diode D5 form a limiting circuit, for example, when the alternating current is in a positive half cycle, the Schottky diode D5 is conducted, and the signal amplitude on the CROSS0 network is limited to be the lowest (being-0.2V) and equal to a low level; when the alternating current is in a negative half cycle, the Schottky diode D4 is conducted, and the amplitude of a signal on the CROSS0 network is limited to be the highest (3.5V), which is equal to a high level; the schottky diode D4 and schottky diode D5 cooperate to ensure that the amplitude of the signal on the CROSS0 network does not exceed the input voltage range of the second leg of the bluetooth module.
Preferably, a fuse FR1 is connected in series between the resistor R17 and the input end of the mains zero line, and the fuse FR1 is used for the power supply circuit 4 to prevent the power supply circuit 4 from being damaged by excessive current and thus from being fused and disconnected.
As shown in fig. 10, the zero-cross detection circuit 1 is used for signal detection, and generates a rising edge when the commercial power negative half cycle crosses zero, and generates a falling edge when the commercial power positive half cycle crosses zero, and the rising edge and the falling edge pass through a software delay value T2 which can start outputting the trigger pulse at the earliest time as the trigger pulse output time of 100% brightness. The triac Q1 is turned off first, and when the bluetooth module 2 gives a trigger signal, the triac Q1 starts to conduct until the current ac zero-crossing is approached, the voltage on the load is low, the current flowing through the triac Q1 does not reach the holding current thereof, and the triac Q1 automatically turns off to wait for the trigger conduction of the next half ac cycle. The position of the trigger pulse relative to the zero crossing time of the alternating current and the alternating current waveform output to the load are shown in the figure when the dimming value is 100% and the dimming value is 1%, and the output signal shows that the phase of the front part of the input alternating current is cut off, and the more the phase is cut off, the lower the average voltage obtained on the load lamp is, so that the aim of adjusting the light brightness is fulfilled.
As shown in fig. 9, the power supply circuit 4 adopts a half-wave rectification non-isolated power supply, and is a structure in which a live wire and a ground share a signal, and the power supply circuit 4 outputs a voltage of 3.3V to the bluetooth module 2.
The working process of the dimmer 9 comprising the intelligent TRIAC dimming circuit is as follows: if dimming is performed using the dimmer 9, brightness adjustment can be performed by the key 6 provided on the dimmer 9; if intelligent adjustment is adopted, intelligent devices such as an intelligent sound box and a mobile phone are connected with the light modulator 9 through the Bluetooth, different platforms can be selected to be connected during connection, for example, google or amazon is selected, specifically, selection can be performed through the selector switch 5 on the light modulator 9 or software on the mobile phone (the software configuration has higher priority), and after connection is successful, brightness adjustment can be directly performed through voice or the mobile phone.
In summary, the bluetooth module is arranged in the light modulator, so that the light modulator has an intelligent adjusting function, and intelligent devices such as an intelligent sound box and a mobile phone can be used for voice or remote adjustment; meanwhile, the dimmer can be manually adjusted by setting the change-over switch and the keys, so that the dimming mode of the dimmer is expanded. When the intelligent control system is used, the common silicon controlled dimming LED lamp can be intelligently controlled by only replacing the existing dimmer, so that the replacement cost is reduced, and the excessive waste of resources is avoided.
Finally, it should be noted that the above embodiments are merely representative examples of the present invention. It is obvious that the utility model is not limited to the above-described embodiments, but that many variations are possible. Any simple modification, equivalent change and modification made to the above embodiments in accordance with the technical spirit of the present invention should be considered to be within the scope of the present invention.
Claims (10)
1. The utility model provides an intelligence TRIAC dimmer circuit, connects between commercial power and load, its characterized in that, includes zero cross detection circuit, bluetooth module, dimmer circuit and supply circuit, bluetooth module links to each other with zero cross detection circuit, dimmer circuit, supply circuit respectively, zero cross detection circuit is used for detecting the zero cross signal of input alternating current to with zero cross signal output to bluetooth module, bluetooth module exports trigger signal according to the zero cross signal of input and gives dimmer circuit, dimmer circuit receives trigger signal and adjusts luminance, supply circuit does bluetooth module provides operating voltage.
2. The intelligent TRIAC dimming circuit of claim 1, further comprising a switch for switching between different platforms according to Bluetooth connection requirements, and a button for controlling a load switch and dimming, wherein the switch and the button are both connected to the Bluetooth module.
3. The intelligent TRIAC dimmer circuit as recited in claim 2, wherein there are three buttons for controlling the load switch, the up dimming and the down dimming, respectively.
4. The intelligent TRIAC dimming circuit of claim 1, further comprising a dimming indicator light for indicating a dimming phase and a switch indicator light for indicating a dimming switch state, wherein the dimming indicator light and the switch indicator light are both connected to the bluetooth module, the dimming indicator lights are arranged in a plurality according to a dimming value range, when the dimming brightness of the load is within the dimming value range of one of the dimming indicator lights, one of the dimming indicator lights and the dimming indicator light below the dimming value range of the one of the dimming indicator lights are both turned on, the dimming indicator light above the dimming value range of the one of the dimming indicator lights is turned off, and the one of the dimming indicator lights is driven by the PWM effective width value corresponding to the output to display the corresponding brightness.
5. The intelligent TRIAC dimming circuit of claim 4, wherein the dimming indicator lamps comprise a first dimming indicator lamp for indicating a dimming value of 1% -20%, a second dimming indicator lamp for indicating a dimming value of 21% -40%, a third dimming indicator lamp for indicating a dimming value of 41% -60%, a fourth dimming indicator lamp for indicating a dimming value of 61% -80%, and a fifth dimming indicator lamp for indicating a dimming value of 81% -100%.
6. The intelligent TRIAC dimming circuit of claim 1, wherein the Bluetooth module has 24 pins, the first pin and the fourteenth pin of the Bluetooth module are respectively used for connecting the input terminal and the output terminal of the multi-machine single-wire communication circuit, the second pin of the Bluetooth module is connected to the zero-crossing detection circuit, the third pin of the Bluetooth module is connected to the dimming circuit, the fourth pin to the eighth pin and the seventeenth pin of the Bluetooth module are used for connecting the dimming indicator and the on-off indicator, the ninth pin of the Bluetooth module is grounded, the tenth pin of the Bluetooth module is connected to one end of a capacitor C4 and the power supply circuit, the other end of the capacitor C4 is grounded, the eleventh pin, the twelfth pin, the eighteenth pin and the twenty-second pin of the Bluetooth module are used for connecting the selector switch and the key, the thirteenth pin of the Bluetooth module is grounded, the fifteenth pin and the sixteenth pin of the Bluetooth module are used for connecting the serial port socket, the nineteenth pin and the twenty-fourth pin of the Bluetooth module are grounded, and the twentieth pin, the twenty-first pin and the twenty-third pin of the Bluetooth module are used for connecting a firmware programming socket.
7. An intelligent TRIAC dimming circuit as claimed in claim 1, wherein the dimming circuit comprises an air isolating switch K5, a fuse F1, an inductor L2, a voltage dependent resistor RV1, a resistor R9, a resistor R10, a resistor R12, a resistor R13, a resistor R14, a resistor R15, a capacitor C6, a capacitor C7, a TRIAC Q1, a transistor Q2, and a optocoupler U1, one end of the air isolating switch K5 is connected to the input end of the live line of the mains, the other end of the air isolating switch K5 is connected to one end of a fuse F1, the other end of the fuse F1 is connected to one end of a voltage dependent resistor RV1 and one end of a capacitor C6, the common connection end of the fuse is grounded, the other end of the capacitor C6 is connected to one end of a resistor R9, the other ends of the resistors R9 are respectively connected to the other end of a voltage dependent resistor RV1, one end of a voltage dependent resistor L2, one end of a TRIAC Q1, one end of a main electrode R10, and the other end of the output end of the inductor L2, another main electrode ground connection of bidirectional thyristor Q1, bidirectional thyristor Q1's control pole connects electric capacity C7's one end, resistance R14's one end, the output of the same way of opto-coupler U1 respectively, electric capacity C7's the other end and resistance R14's the other end all ground connection, another output of the other end termination opto-coupler U1 of resistance R10, the input of the same way of opto-coupler U1 is connected with supply circuit through resistance R12, another input termination triode Q2's collecting electrode of opto-coupler U1, resistance R13's one end and resistance R15's one end are connected to triode Q2's base, triode Q2's projecting pole and resistance R15's the other end all ground connection, another termination of resistance R13 the bluetooth module.
8. The intelligent TRIAC dimming circuit of claim 1, wherein the zero-crossing detection circuit comprises a resistor R17, a capacitor C9, a schottky diode D4 and a schottky diode D5, one end of the resistor R17 is connected to the input end of the power supply circuit and the neutral line of the utility power respectively, the other end of the resistor R17 is connected to the positive electrode of the bluetooth module, the schottky diode D4 and the negative electrode of the schottky diode D5 respectively, the negative electrode of the schottky diode D4 is connected to the power supply circuit, the positive electrode of the schottky diode D5 is connected to the ground, and the capacitor C9 is connected in parallel with the schottky diode D5.
9. The intelligent TRIAC dimming circuit of claim 8, wherein a fuse FR1 is connected in series between the resistor R17 and the input end of the neutral line of the mains.
10. The intelligent TRIAC dimming circuit of claim 1, wherein the power supply circuit employs a half-wave rectified non-isolated power supply in a hot common ground configuration.
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| CN202122308951.3U CN215956688U (en) | 2021-09-23 | 2021-09-23 | Intelligent TRIAC dimming circuit |
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| CN202122308951.3U CN215956688U (en) | 2021-09-23 | 2021-09-23 | Intelligent TRIAC dimming circuit |
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| CN215956688U true CN215956688U (en) | 2022-03-04 |
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