CN211909247U - Intelligent lamp and color cutting detection circuit thereof - Google Patents

Abstract

The utility model belongs to the technical field of electronic circuit, a intelligence lamps and lanterns and surely look detection circuitry thereof is related to, including rectification filter circuit, the main power circuit, supply circuit, wall switch detection circuitry and control circuit, alternating current signal through to power supply circuit output carries out rectification processing and filtering processing back, output direct current signal, and according to the level height that receives direct current signal in the time quantum of predetermineeing, with the state that detects the wall switch, carry out voltage transformation to direct current signal after that, acquire the state of wall switch, with output feedback signal, finally carry out power control to direct current signal according to feedback signal, and control light emitting module is luminous or extinguish, and carry out the colour temperature switching to light emitting module. Therefore, whether the wall switch is really switched on or off is correctly judged by adopting the detection mode, so that the error detection is avoided, the error trigger generated by the detection of the waveform change is eliminated, and the effect of switching the color temperature of the light-emitting module is realized.

Description

A kind of intelligent lamp and its color cut detection circuit

technical field

The application belongs to the technical field of electronic circuits, and in particular relates to an intelligent lamp and a color cut detection circuit thereof.

Background technique

At present, if a thyristor dimmer is connected to the products (including lamps and lanterns) for color-cutting on the market, the detection waveform of the switch will change, resulting in the phenomenon of false triggering of color-cutting.

Therefore, the existing smart lamps have the problem that the detection waveform of the switch on and off is changed due to the dimmer, so that the color-cutting and false triggering occur.

Utility model content

In view of this, the embodiment of the present application provides a smart lamp and a color-cutting detection circuit thereof, which aims to solve the problem that the detection waveform of the switch on and off caused by the dimmer in the existing smart lamp is changed, so that the color-cutting error occurs. Triggered problem.

A first aspect of the embodiments of the present application provides a color-cut detection circuit for a smart lamp, including:

a rectifying and filtering circuit, connected to the power supply circuit, and configured to output a direct current signal after rectifying and filtering the alternating current signal output by the power supply circuit;

a main power circuit, connected to the rectification filter circuit, configured to perform power control on the direct current signal according to the feedback signal, control the light-emitting module to light up or turn off, and switch the color temperature of the light-emitting module;

a power supply circuit, connected to the main power circuit, configured to perform voltage transformation on the direct current signal;

a wall switch detection circuit, connected to the rectification filter circuit, and configured to detect the state of the wall switch according to the level of the direct current signal received within a preset time period; and

A control circuit, connected to the main power circuit, the power supply circuit and the wall switch detection circuit, is configured to receive the DC signal after voltage conversion, and obtain the state of the wall switch to output the feedback signal to the main power circuit.

Preferably, the rectification filter circuit includes:

a rectifier circuit, connected to the power supply circuit, and configured to rectify the alternating current signal output by the power supply circuit; and

A filter sub-circuit, connected to the rectifier sub-circuit, is configured to filter the rectified alternating current signal to output the direct current signal.

Preferably, the rectifier circuit is implemented by a rectifier bridge.

Preferably, the filtering subcircuit includes:

a first diode, a first resistor, a second resistor, a third resistor, a fourth resistor, a first capacitor, a second capacitor, a third capacitor and a first inductor;

The anode of the first diode is connected to the commutator circuit, the cathode of the first diode, the first end of the first resistor, the first end of the first inductor and the first The first end of the capacitor is connected in common, the second end of the first resistor, the second end of the first inductor, the first end of the second capacitor and the first end of the third capacitor are connected in common and connected together connected to the main power circuit, the second end of the third capacitor, the first end of the second resistor, the first end of the third resistor and the first end of the fourth resistor are connected in common, The second end of the first capacitor, the second end of the second capacitor, the second end of the second resistor, the second end of the third resistor and the second end of the fourth resistor are in common. catch.

Preferably, the main power circuit includes:

The second diode, the second Zener diode, the first switch tube, the second switch tube, the third switch tube, the second inductor, the first electrolytic capacitor, the fourth electrolytic capacitor, the constant current control chip, the fifth resistor, The sixth resistor, the seventh resistor, the eighth resistor, the ninth resistor, the tenth resistor, the eleventh resistor, the twelfth resistor, the thirteenth resistor, the fourteenth resistor, the fourth capacitor, the fifth capacitor, the sixth resistor capacitance and tenth capacitance;

The first end of the second inductor and the first end of the sixth capacitor are connected to the rectifier filter circuit, the second end of the second inductor is connected to the anode of the second diode, and the second The cathode of the diode, the first end of the ninth resistor, the first end of the sixth capacitor, the first end of the first electrolytic capacitor, the first end of the eleventh resistor, the The cathode of the second Zener diode and the output end of the third switch tube are connected in common, and the input end of the third switch tube and the first end of the tenth capacitor are connected to the input end of the light-emitting module, so The anode of the second Zener diode is connected with the controlled end of the third switch tube and the second end of the tenth capacitor, and the output end of the first switch tube and the output of the second switch tube are connected in common. The output end of the light-emitting module is terminated, the controlled end of the first switch tube is connected with the first end of the thirteenth resistor and is connected to the control circuit, and the receiving end of the second switch tube is connected to the control circuit. The control terminal is connected to the first terminal of the fourteenth resistor and is connected to the control circuit, the second terminal of the ninth resistor is connected to the first terminal of the tenth resistor, and the second terminal of the tenth resistor is connected to the first terminal of the tenth resistor. The two terminals are connected to the first terminal of the fourth electrolytic capacitor and the first terminal of the fifth capacitor. The first terminal of the eighth resistor is connected to the clamping terminal of the constant current control chip. The first end of the fifth resistor and the first end of the sixth resistor are connected to the control end of the constant current control chip, the first end of the seventh resistor is connected to the serial port of the constant current control chip, and the first end of the seventh resistor is connected to the serial port of the constant current control chip. The second end of the seventh resistor is connected to the first end of the fourth capacitor, the second end of the fifth resistor, the second end of the sixth resistor, the second end of the fourth capacitor, the The second end of the four electrolytic capacitors, the second end of the fifth capacitor, the second end of the eighth resistor, the second end of the first electrolytic capacitor, the second end of the twelfth resistor, The second end of the thirteenth resistor, the second end of the fourteenth resistor, the input end of the first switch tube, and the input end of the second switch tube are grounded.

Preferably, the power supply circuit includes:

The third diode, the fourth diode, the fifth diode, the third inductor, the seventh capacitor, the eighth capacitor, the second electrolytic capacitor, the third electrolytic capacitor, the fifteenth resistor, the sixteenth resistor, and Transformer chip;

The anode of the third diode is connected to the main power circuit, and the cathode of the third diode is connected to the first end of the second electrolytic capacitor and the input end of the transformer chip in common. The control terminal of the transformer chip is connected to the first terminal of the fifteenth resistor, and the voltage terminal of the transformer chip is connected to the first terminal of the seventh capacitor and the cathode of the fifth diode in common. The second end of the fifteenth resistor, the first end of the third inductor, the second end of the seventh capacitor and the cathode of the fourth diode are connected in common, and the second end of the third inductor terminal, the anode of the fifth diode, the first terminal of the eighth capacitor, the first terminal of the third electrolytic capacitor and the first terminal of the sixteenth resistor are connected together and connected to the reference voltage , the second end of the second electrolytic capacitor, the anode of the fourth diode, the second end of the eighth capacitor, the second end of the third electrolytic capacitor, and the The second terminal is grounded.

Preferably, the wall switch detection circuit includes:

The seventeenth resistor, the eighteenth resistor, the nineteenth resistor, the ninth capacitor and the first Zener diode;

The first end of the seventeenth resistor is connected to the rectifier filter circuit, the second end of the seventeenth resistor is connected to the first end of the eighteenth resistor, and the second end of the eighteenth resistor is connected to The first end of the nineteenth resistor, the first end of the ninth capacitor and the cathode of the first Zener diode are connected in common with the control circuit, and the second end of the ninth capacitor is connected to the control circuit. The second end of the nineteenth resistor and the anode of the first Zener diode are connected in common.

Preferably, the control circuit includes a single-chip microcomputer.

A second aspect of the embodiments of the present application provides a smart lamp, including:

Lighting module;

Color cut detection circuit as described above; and

A power supply circuit configured to output an alternating current signal to supply power to the color cut detection circuit.

The above-mentioned smart lamp and its color-cutting detection circuit include a rectification filter circuit, a main power circuit, a power supply circuit, a wall switch detection circuit and a control circuit. DC signal, and detect the status of the wall switch according to the level of the DC signal received within a preset time period, then perform voltage transformation on the DC signal, and obtain the status of the wall switch to output a feedback signal, and finally according to the feedback The signal controls the power of the direct current signal, controls the light-emitting module to light up or turn off, and switches the color temperature of the light-emitting module. Therefore, the above detection method is used to correctly judge whether the wall switch is really turned on and off, so as to avoid false detection, thereby eliminating false triggering caused by the change of the detection waveform, and realizing the effect of switching the color temperature of the light-emitting module, which solves the problem of existing problems. There is a problem that the detection waveform of the switch machine changes due to the dimmer, which causes the color cut to be triggered by mistake.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present application more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only for the present application. In some embodiments, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without any creative effort.

FIG. 1 is a schematic structural diagram of a color cut detection circuit of a smart lamp provided by one aspect of the application;

FIG. 2 is a schematic diagram of a specific structure of a color cut detection circuit corresponding to a smart lamp of FIG. 1;

FIG. 3 is an example circuit diagram of a color cut detection circuit corresponding to a smart lamp of FIG. 1;

4 is a schematic diagram of a detection waveform of a wall switch of a color-cut detection circuit of a smart lamp provided by the application;

5 is a schematic diagram of a detection principle of a wall switch of a color-cut detection circuit of a smart lamp provided by an embodiment of the application;

FIG. 6 is a schematic diagram of a detection principle of a wall switch of a color-cut detection circuit of a smart lamp provided by another embodiment of the present application.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present application more clearly understood, the present application will be described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application.

Referring to FIG. 1 , the structure of a color-cut detection circuit of a smart lamp provided in one aspect of the present application, for the convenience of description, only shows the part related to this embodiment, and the details are as follows:

The above-mentioned color-cut detection circuit of a smart lamp includes a rectification filter circuit 101 , a main power circuit 102 , a power supply circuit 103 , a wall switch detection circuit 104 and a control circuit 105 .

The rectifying and filtering circuit 101 is connected to the power supply circuit 106, and is configured to output a direct current signal after rectifying and filtering the alternating current signal output by the power supply circuit 106.

Specifically, since the output of the power supply circuit 106 is an alternating current signal, the rectification filter circuit 101 is set to rectify the alternating current signal and convert it into a direct current signal. The voltage waveform of 100/120HZ in the negative half cycle; and filter out the specific frequency signal in the DC signal to play the role of anti-signal interference.

The main power circuit 102 is connected to the rectification filter circuit 101, and is configured to perform power control on the DC signal according to the feedback signal, control the light-emitting module to light up or turn off, and switch the color temperature of the light-emitting module.

Specifically, the main purpose of the main power circuit 102 is to control the light emitting module to emit light or to turn off, and to switch the color temperature of the light emitting module when the light emitting module emits light, and the light emitting module is realized by an LED lamp tube.

The power supply circuit 103 is connected to the main power circuit 102 and is configured to perform voltage conversion on the DC signal.

Specifically, the power supply circuit 103 is used to perform voltage transformation on the above-mentioned DC signal, including boost transformation and step-down transformation, in order to convert the received DC signal into an electrical signal with a preset voltage value to supply power to the control circuit 105 . Of course, the preset voltage value can be set according to actual needs.

The wall switch detection circuit 104 is connected to the rectification filter circuit 101, and is configured to detect the state of the wall switch according to the level of the DC signal received within a preset time period.

Specifically, the status of the wall switch includes ON and OFF, and the wall switch detection circuit 104 determines whether the status of the wall switch is ON or OFF according to the level of the DC signal received within a preset time period. Of course, in specific applications, the wall switch can also be implemented by a DIP switch, which is not limited here.

The control circuit 105 is connected to the main power circuit 102 , the power supply circuit 103 and the wall switch detection circuit 104 , and is configured to receive the DC signal after voltage conversion, obtain the status of the wall switch, and output a feedback signal to the main power circuit 102 .

Specifically, the control circuit 105 is used to obtain the state of the wall switch through the wall switch detection circuit 104, and output a feedback signal to the main power circuit 102 to switch the color temperature of the LED tube through the main power circuit 102.

Therefore, by using the above-mentioned color-cutting detection circuit, it is possible to correctly determine whether the wall switch is really turned on or off, avoiding false detection, and realizing the effect of switching the color temperature of the light-emitting module.

As shown in FIG. 2 , in the above-mentioned color-cutting detection circuit of a smart lamp, the rectifying and filtering circuit 101 includes a rectifying sub-circuit 1011 and a filtering sub-circuit 1012 .

The rectifier circuit 1011 is connected to the power supply circuit 106 , and is configured to rectify the AC signal output by the power supply circuit 106 .

The filtering sub-circuit 1012 is connected to the rectifying sub-circuit 1011, and is configured to perform filtering processing on the rectified alternating current signal to output a direct current signal.

Exemplarily, the rectifier circuit 1011 first converts the 50/60HZ voltage of the input sine wave into a 100/120HZ voltage waveform without a negative half cycle, and the filter subcircuit 1012 then converts the 100/120HZ voltage waveform without a negative half cycle. The specific frequency signal is filtered to play the role of anti-signal interference.

FIG. 3 shows an example circuit corresponding to the color-cut detection circuit of a smart lamp in FIG. 1 . For the convenience of description, only the parts related to this embodiment are shown, and the details are as follows:

As an embodiment of the present application, the above-mentioned rectifier circuit 1011 is implemented by a rectifier bridge BD1, which includes full-bridge rectification or half-bridge rectification.

As an embodiment of the present application, the filter sub-circuit includes a first diode D1, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a first capacitor C1, a second capacitor C2, a Three capacitors C3 and a first inductor L1.

The anode of the first diode D1 is connected to the commutator circuit 1011, and the cathode of the first diode D1, the first end of the first resistor R1, the first end of the first inductor L1, and the first end of the first capacitor C1 are in common. The second end of the first resistor R1, the second end of the first inductor L1, the first end of the second capacitor C2 and the first end of the third capacitor C3 are connected together and connected to the main power circuit 102, and the third capacitor The second end of C3, the first end of the second resistor R2, the first end of the third resistor R3 and the first end of the fourth resistor R4 are connected in common, the second end of the first capacitor C1, the first end of the second capacitor C2 The two terminals, the second terminal of the second resistor R2, the second terminal of the third resistor R3 and the second terminal of the fourth resistor R4 are connected in common.

As an embodiment of the present application, the above-mentioned main power circuit 102 includes a second diode D2, a second Zener diode ZD2, a first switch transistor Q1, a second switch transistor Q2, a third switch transistor Q3, a second inductor L2, The first electrolytic capacitor EC1, the fourth electrolytic capacitor EC4, the constant current control chip U1, the fifth resistor R5, the sixth resistor R6, the seventh resistor R7, the eighth resistor R8, the ninth resistor R9, the tenth resistor R10, the tenth resistor A resistor R11, a twelfth resistor R12, a thirteenth resistor R13, a fourteenth resistor R14, a fourth capacitor C4, a fifth capacitor C5, a sixth capacitor C6 and a tenth capacitor C10.

The first end of the second inductor L2 and the first end of the sixth capacitor C6 are connected to the rectifier filter circuit 101, the second end of the second inductor L2 is connected to the anode of the second diode D2, the cathode of the second diode D2, The first end of the ninth resistor R9, the first end of the sixth capacitor C6, the first end of the first electrolytic capacitor EC1, the first end of the eleventh resistor R11, the cathode of the second Zener diode ZD2, and the third switch The output end of the tube Q3 is connected in common, the input end of the third switch tube Q3 and the first end of the tenth capacitor C10 are connected to the input end of the light emitting module (represented by diode LEDA and diode LEDB in Figure 3), and the second Zener diode ZD2 The anode is connected to the controlled end of the third switch tube Q3 and the second end of the tenth capacitor C10. The output end of the first switch tube Q1 and the output end of the second switch tube Q2 are connected to the output end of the light-emitting module. The controlled end of a switch Q1 is commonly connected to the first end of the thirteenth resistor R13 and is connected to the control circuit 105 , and the controlled end of the second switch Q2 is commonly connected to the first end of the fourteenth resistor R14 and is connected to the control circuit 105 . The control circuit 105 is connected, the second end of the ninth resistor R9 is connected to the first end of the tenth resistor R10, the second end of the tenth resistor R10 is connected to the first end of the fourth electrolytic capacitor EC4 and the first end of the fifth capacitor C5 Commonly connected, the first end of the eighth resistor R8 is connected to the clamping end ROVP of the constant current control chip U1, the first end of the fifth resistor R5 and the first end of the sixth resistor R6 are connected to the control end CS of the constant current control chip U1 , the first end of the seventh resistor R7 is connected to the serial port COMP of the constant current control chip U1, the second end of the seventh resistor R7 is connected to the first end of the fourth capacitor C4, the second end of the fifth resistor R5, the sixth resistor The second end of R6, the second end of the fourth capacitor C4, the second end of the fourth electrolytic capacitor EC4, the second end of the fifth capacitor C5, the second end of the eighth resistor R8, the second end of the first electrolytic capacitor EC1 Two terminals, the second terminal of the twelfth resistor R12, the second terminal of the thirteenth resistor R13, the second terminal of the fourteenth resistor R14, the input terminal of the first switch transistor Q1 and the input terminal of the second switch transistor Q2 ground.

Exemplarily, the above-mentioned first switch transistor Q1, second switch transistor Q2 and third switch transistor Q3 all include triodes or field effect transistors;

The collector, emitter and base of the triode correspond to the input end, output end and controlled end of the switch tube respectively;

The drain, source and gate of the field effect transistor correspond to the input end, the output end and the controlled end of the switch tube respectively.

As an embodiment of the present application, the power supply circuit 103 includes a third diode D3, a fourth diode D4, a fifth diode D5, a third inductor L3, a seventh capacitor C7, an eighth capacitor C8, a second The electrolytic capacitor EC2, the third electrolytic capacitor EC3, the fifteenth resistor R15, the sixteenth resistor R16, and the transformer chip U2.

The anode of the third diode D3 is connected to the main power circuit 102, and the cathode of the third diode D3 is connected to the first end of the second electrolytic capacitor EC2 and the input end Drain of the transformer chip U2. The control of the transformer chip U2 The terminal CS is connected to the first terminal of the fifteenth resistor R15, the voltage terminal VDD of the transformer chip U2 is connected to the first terminal of the seventh capacitor C7 and the cathode of the fifth diode D5, and the second terminal of the fifteenth resistor R15 is connected in common. terminal, the first terminal of the third inductor L3, the second terminal of the seventh capacitor C7 and the cathode of the fourth diode D4 are connected in common; the second terminal of the third inductor L3, the anode of the fifth diode D5, the The first end of the eighth capacitor C8, the first end of the third electrolytic capacitor EC3 and the first end of the sixteenth resistor R16 are connected in common and connected to the reference voltage VDD, the second end of the second electrolytic capacitor EC2, the fourth diode The anode of the tube D4, the second end of the eighth capacitor C8, the second end of the third electrolytic capacitor EC3 and the second end of the sixteenth resistor R16 are grounded.

As an embodiment of the present application, the wall switch detection circuit 104 includes a seventeenth resistor R17 , an eighteenth resistor R18 , a nineteenth resistor R19 , a ninth capacitor C9 and a first Zener diode ZD1 .

The first end of the seventeenth resistor R17 is connected to the rectifier filter circuit 101, the second end of the seventeenth resistor R17 is connected to the first end of the eighteenth resistor R18, and the second end of the eighteenth resistor R18 is connected to the nineteenth resistor R19 The first end of the ninth capacitor C9 is connected with the cathode of the first Zener diode ZD1 and is connected to the control circuit 105, the second end of the ninth capacitor C9 is connected with the second end of the nineteenth resistor R19 and The anodes of the first Zener diode ZD1 are connected in common.

As an embodiment of the present application, the above-mentioned control circuit includes a single-chip microcomputer U3.

As shown in Figure 4, it is the wall switch detection waveform TS1. For some dimmers with slow start-up, the switch detection waveform will become this kind of waveform. Point A in the figure is the conduction of the wall switch, and the entire segment A→B→C is turned on (the segment B→C is not shutdown).

FIG. 5 and FIG. 6 show the detection principle of a wall switch of a color-cutting detection circuit of a smart lamp provided by the present application. For the convenience of description, only the parts related to this embodiment are shown, and the details are as follows:

Figure 5 is suitable for the AB segment time is less than the BC segment time. When the AB segment detects a high level, it is determined that the drive is turned on, and the (~5) detection and control loop performs normal output control and lights up the LED light. If the high level time of the AB segment is less than 100ms (it can also be other time), at this time, the BC segment is detected to be low level, no matter how long the low level time is, it is determined that there is no shutdown, even if a high level is detected at point C Flat, and do not cut color.

Description: (~5) When the detection and control loop detects a high level, it will immediately control the lighting of the light-emitting module. Therefore, the LED light can be quickly turned on, avoiding a long delay for the LED light to light up. In addition, if the LED light does not light up immediately, the output is in an open-circuit state, and the output has been accumulating energy. After a long time, the output voltage is greater than the normal operating voltage. When the circuit is turned on, there will be a large inrush current.

When the AB segment detects a high level, it is determined that the drive is turned on, and the (~5) detection and control loop performs normal output control and lights up the LED. If the high level time of the AB segment is >100ms (or other time), it is detected that the BC segment is low level, and the low level time is >10ms, and it is determined to be shut down. If a high level is detected at point C, Then the color cutting operation is performed. If the low level time of the BC segment is less than 10ms, the color cutting operation is not performed.

Figure 6 is suitable for the BC segment time being greater than the AB segment time. When the AB segment detects a high level, and the high level time is more than 10ms, it is determined that the drive is turned on, and the (~5) detection and control loop performs normal output control and lights up the LED. If it is detected that BC is a low level, and the time of the BC segment is less than 100ms (it can also be other time), it is determined that there is no shutdown, and even if a high level is detected at point C, the color cut will not be performed.

When the AB segment detects a high level, and the high level time is more than 10ms, it is determined that the drive is turned on, and the (~5) detection and control loop performs normal output control and lights up the LED light. If it is detected that BC is a low level, and the time of the BC segment is more than 100ms (it can also be other time), it is determined as shutdown, and when a high level is detected at point C, the color is cut. If the high level time of the AB segment is less than 10ms, the color cutting operation is not performed.

The above-mentioned color-cutting detection circuit detects the wall switch signal through the single-chip microcomputer, and uses the unique detection method of the single-chip microcomputer to correctly determine whether the wall switch is really turned on or off, so as to avoid false detection and eliminate the false trigger caused by the change of the detected waveform. The way is simple and easy.

The application also provides a smart light fixture, including:

Lighting module;

Color cut detection circuit as described above; and

The power supply circuit 106 is configured to output an alternating current signal to supply power to the color cut detection circuit.

It should be noted that the smart lamp adds a light-emitting module and a power supply circuit 106 on the basis of the above-mentioned color-cutting detection circuit. Therefore, the rectifier and filter circuit 101, the main power circuit 102, the power supply circuit 103, the power supply circuit 103, the For the functional description and principle description of the wall switch detection circuit 104 and the control circuit 105, reference may be made to the embodiments of FIG. 1 to FIG. 6 , and details are not repeated here.

To sum up, the above-mentioned smart lamp and its color-cutting detection circuit in the embodiments of the present application include a rectifier and filter circuit, a main power circuit, a power supply circuit, a wall switch detection circuit, and a control circuit. After the electrical signal is rectified and filtered, the DC signal is output, and the state of the wall switch is detected according to the level of the DC signal received within a preset time period, and then the DC signal is voltage transformed to obtain the wall switch. to output a feedback signal, and finally control the power of the DC signal according to the feedback signal, control the light-emitting module to light up or turn off, and switch the color temperature of the light-emitting module. Therefore, the above detection method is used to correctly judge whether the wall switch is really turned on and off, so as to avoid false detection, thereby eliminating false triggering caused by the change of the detection waveform, and realizing the effect of switching the color temperature of the light-emitting module, which solves the problem of existing problems. There is a problem that the detection waveform of the switch machine changes due to the dimmer, which causes the color cut to be triggered by mistake.

Various embodiments are described herein for various devices, circuits, apparatus, systems, and/or methods. Numerous specific details are set forth to provide a thorough understanding of the general structure, function, manufacture, and use of the embodiments as described in the specification and illustrated in the accompanying drawings. It will be understood by those skilled in the art, however, that embodiments may be practiced without such specific details. In other instances, well-known operations, components and elements have been described in detail so as not to obscure the implementations in the specification. It will be understood by those skilled in the art that the embodiments herein and shown are non-limiting examples, and therefore, it may be appreciated that the specific structural and functional details disclosed herein may be representative and do not necessarily limit the embodiments range.

Reference throughout this specification to "various embodiments," "in an embodiment," "one embodiment," or "an embodiment," etc., means that a particular feature, structure, or characteristic described in relation to an embodiment is included in at least one in one embodiment. Thus, appearances of the phrases "in various embodiments," "in some embodiments," "in one embodiment," or "in an embodiment" in appropriate places throughout the specification are not necessarily all referring to the same implementation. Furthermore, the particular features, structures or characteristics may be combined in any suitable manner in one or more embodiments. Thus, a particular feature, structure or characteristic illustrated or described with respect to one embodiment may be combined in whole or in part with the features, structures or characteristics of one or more other embodiments without presuming that such a combination is not illogical or No functional restrictions. Any directional reference (eg, plus, minus, top, bottom, up, down, left, right, left, right, top, bottom, above, below, vertical, horizontal, straight clockwise and counterclockwise) are used for identification purposes to assist the reader in understanding the present disclosure, and are not intended to be limiting, particularly with regard to the location, orientation, or use of the embodiments.

Although certain embodiments have been described above with a certain level of detail, many changes to the disclosed embodiments may be made by those skilled in the art without departing from the scope of the present disclosure. Connection references (eg, attached, coupled, connected, etc.) are to be construed broadly and can include intermediate members between connections of elements and relative movement between elements. Thus, a connected reference does not necessarily imply that two elements are directly connected/coupled and in a fixed relationship to each other. The use of "eg" throughout the specification should be construed broadly and used to provide non-limiting examples of embodiments of the present disclosure, and the present disclosure is not limited to such examples. It is intended that all matters contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative only and not restrictive. Changes in detail or structure may be made without departing from the present disclosure.

The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application shall be included in the protection scope of the present application. Inside.

Claims (9)

1. A surely look detection circuitry of intelligence lamps and lanterns characterized in that includes:

the rectification filter circuit is connected with the power supply circuit and is configured to output a direct current signal after rectification processing and filtering processing are carried out on an alternating current signal output by the power supply circuit;

the main power circuit is connected with the rectification filter circuit and is configured to control the power of the direct current electric signal according to a feedback signal, control the light-emitting module to emit light or extinguish, and switch the color temperature of the light-emitting module;

a power supply circuit connected to the main power circuit and configured to perform voltage conversion on the direct current signal;

the wall switch detection circuit is connected with the rectification filter circuit and is configured to detect the state of a wall switch according to the level of the received direct current electric signal in a preset time period; and

and the control circuit is connected with the main power circuit, the power supply circuit and the wall switch detection circuit, and is configured to receive the direct current signal after voltage conversion, acquire the state of the wall switch and output the feedback signal to the main power circuit.

2. The cut-color detection circuit according to claim 1, wherein the rectifying-filtering circuit includes:

the rectifier sub-circuit is connected with the power supply circuit and is configured to rectify an alternating current signal output by the power supply circuit; and

and the filtering sub-circuit is connected with the rectifying sub-circuit and is configured to filter the rectified alternating current signal so as to output the direct current signal.

3. The cut-color detection circuit of claim 2, wherein the rectifier sub-circuit is implemented using a rectifier bridge.

4. The cut color detection circuit of claim 2, wherein the filter sub-circuit comprises:

the circuit comprises a first diode, a first resistor, a second resistor, a third resistor, a fourth resistor, a first capacitor, a second capacitor, a third capacitor and a first inductor;

the anode of the first diode is connected with the rectifier sub-circuit, the cathode of the first diode, the first end of the first resistor, the first end of the first inductor and the first end of the first capacitor are connected in common, the second end of the first resistor, the second end of the first inductor, the first end of the second capacitor and the first end of the third capacitor are connected in common and connected with the main power circuit, the second end of the third capacitor, the first end of the second resistor, the first end of the third resistor and the first end of the fourth resistor are connected in common, and the second end of the first capacitor, the second end of the second resistor, the second end of the third resistor and the second end of the fourth resistor are connected in common.

5. The cut color detection circuit of claim 1, wherein the main power circuit comprises:

the second diode, the second voltage-stabilizing diode, the first switching tube, the second switching tube, the third switching tube, the second inductor, the first electrolytic capacitor, the fourth electrolytic capacitor, the constant current control chip, the fifth resistor, the sixth resistor, the seventh resistor, the eighth resistor, the ninth resistor, the tenth resistor, the eleventh resistor, the twelfth resistor, the thirteenth resistor, the fourteenth resistor, the fourth capacitor, the fifth capacitor, the sixth capacitor and the tenth capacitor;

the first end of the second inductor and the first end of the sixth capacitor are connected to the rectifying and filtering circuit, the second end of the second inductor is connected to the anode of the second diode, the cathode of the second diode, the first end of the ninth resistor, the first end of the sixth capacitor, the first end of the first electrolytic capacitor, the first end of the eleventh resistor, the cathode of the second zener diode, and the output end of the third switching tube are connected together, the input end of the third switching tube and the first end of the tenth capacitor are connected to the input end of the light emitting module, the anode of the second zener diode is connected to the controlled end of the third switching tube and the second end of the tenth capacitor, the output end of the first switching tube and the output end of the second switching tube are connected to the output end of the light emitting module, the controlled end of the first switching tube and the first end of the thirteenth resistor are connected together and connected to the control circuit, the controlled end of the second switch tube is connected to the first end of the fourteenth resistor, the second end of the ninth resistor is connected to the first end of the tenth resistor, the second end of the tenth resistor is connected to the first end of the fourth electrolytic capacitor and the first end of the fifth capacitor, the first end of the eighth resistor is connected to the clamping end of the constant current control chip, the first ends of the fifth resistor and the sixth resistor are connected to the control end of the constant current control chip, the first end of the seventh resistor is connected to the serial port of the constant current control chip, the second end of the seventh resistor is connected to the first end of the fourth capacitor, the second end of the fifth resistor, the second end of the sixth resistor, the second end of the fourth capacitor, the second end of the fourth electrolytic capacitor, the second end of the fifth capacitor, The second end of the eighth resistor, the second end of the first electrolytic capacitor, the second end of the twelfth resistor, the second end of the thirteenth resistor, the second end of the fourteenth resistor, the input end of the first switch tube and the input end of the second switch tube are grounded.

6. The cut color detection circuit according to claim 1, wherein the power supply circuit includes:

the third diode, the fourth diode, the fifth diode, the third inductor, the seventh capacitor, the eighth capacitor, the second electrolytic capacitor, the third electrolytic capacitor, the fifteenth resistor, the sixteenth resistor and the transformer chip;

the anode of the third diode is connected with the main power circuit, the cathode of the third diode is connected with the first end of the second electrolytic capacitor and the input end of the transformer chip in common, the control end of the transformer chip is connected with the first end of the fifteenth resistor, the voltage end of the transformer chip is connected with the first end of the seventh capacitor and the cathode of the fifth diode in common, the second end of the fifteenth resistor, the first end of the third inductor, the second end of the seventh capacitor and the cathode of the fourth diode in common, the second end of the third inductor, the anode of the fifth diode, the first end of the eighth capacitor, the first end of the third electrolytic capacitor and the first end of the sixteenth resistor in common are connected with a reference voltage, and the second end of the second electrolytic capacitor, the anode of the fourth diode, the second end of the eighth capacitor, the second end of the fifth capacitor, the first end of the fifth capacitor and the cathode of the sixteenth resistor in common are connected with a reference voltage, A second terminal of the third electrolytic capacitor and a second terminal of the sixteenth resistor are grounded.

7. The cut-color detection circuit according to claim 1, wherein the wall switch detection circuit comprises:

a seventeenth resistor, an eighteenth resistor, a nineteenth resistor, a ninth capacitor and a first zener diode;

the first end of the seventeenth resistor is connected with the rectifying and filtering circuit, the second end of the seventeenth resistor is connected with the first end of the eighteenth resistor, the second end of the eighteenth resistor is connected with the first end of the nineteenth resistor, the first end of the ninth capacitor is connected with the cathode of the first voltage stabilizing diode in a common mode and is connected with the control circuit, and the second end of the ninth capacitor is connected with the second end of the nineteenth resistor and the anode of the first voltage stabilizing diode in a common mode.

8. The cut-color detection circuit of claim 1, wherein the control circuit comprises a single-chip microcomputer.

9. An intelligent light fixture, comprising:

a light emitting module;

the cut color detection circuit of any one of claims 1-8; and

a power supply circuit configured to output an alternating current signal to power the color cut detection circuit.

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