Double-control circuit and induction lamp

Abstract

The utility model discloses a double-control circuit and an induction lamp. The double-control circuit comprises an RC module, a rectification module, a voltage stabilization module, a voltage conversion module, an MCU module, a PIR induction module, a light induction module and a switch module. The input end of the RC module is connected with the AC-A end of the power supply; the input end of the rectification module is connected with the output end of the RC module and the AC-B end of the power supply, and the output end of the rectification module is connected with the input end of the voltage stabilization module and the switch module. The input end of the voltage conversion module is connected with the output end of the voltage stabilization module, and the output end of the voltage conversion module is connected with the MCU module. The MCU module is connected with the input ends of the PIR sensing module, the light sensing module and the switch module. When the PIR sensing module senses that a person passes by, the PIR sensing module sends a high-level signal to the MCU module, the MCU module detects the voltage value of the light sensing module, and if the voltage is within a preset range value, the MCU module sends the high-level signal to the switch module; and if the voltage does not reach the preset range value, the MCU module sends a low-level signal to the switch module.

Description

Technical Field

[0001] This utility model relates to the field of sensor light control circuit technology, specifically to a dual-control circuit and a sensor light. Background Technology

[0002] In the lighting industry, various types of sensor lights have emerged on the market to save energy and reduce light pollution. These include pyroelectric infrared sensor lights, touch-sensitive sensor lights, sound-activated sensor lights, and light-activated sensor lights. Among them, pyroelectric infrared sensor lights are widely popular with consumers due to their low power consumption and high sensing accuracy.

[0003] The principle of human body pyroelectric infrared sensing is as follows: infrared rays of approximately 10µm emitted by the human body are amplified by a Fresnel lens filter and focused onto the infrared sensing source. The infrared sensing source typically uses a pyroelectric element. When this element receives infrared radiation from the human body and its temperature changes, it loses its charge balance and releases a charge. After detection and processing by the subsequent circuit, it triggers a switch action. When someone enters the switch's sensing range, the infrared sensing source detects the change in the human body's infrared spectrum, and the switch automatically turns on the load's LED light. As long as the person does not leave the sensing range, the switch will remain on. After the person leaves or there is no movement within the sensing area, the switch automatically turns off the load's LED light after a delay.

[0004] However, existing pyroelectric infrared motion sensor lights can only be controlled by detecting whether a person is passing by. In daylight or in bright environments where no artificial lighting is needed, if the power to the pyroelectric infrared motion sensor light is not turned off in time, the LED light will illuminate when the infrared sensor detects someone passing by, thus wasting electricity. Utility Model Content

[0005] To address the shortcomings of existing technologies, a dual-control circuit and a sensor light are provided.

[0006] To achieve the above objectives, this utility model provides a dual-control circuit and a sensor lamp, including an RC module, a rectifier module, a voltage regulator module, a voltage conversion module, an MCU module, a PIR sensor module, a light sensor module, and a switch module; the input terminal of the RC module is connected to the AC-A terminal of the power supply; the input terminal of the rectifier module is connected to the output terminal of the RC module and the AC-B terminal of the power supply, and the output terminal of the rectifier module is connected to the input terminal of the voltage regulator module and the switch module; the output terminal of the voltage regulator module is connected to the input terminal of the voltage conversion module, and the output terminal of the voltage conversion module is connected to the MCU module; the PIR sensor module is connected to the MCU module; the light sensor module is connected to the MCU module; and the input terminal of the switch module is connected to the MCU module.

[0007] According to one embodiment of the present invention, the switching module includes a transistor Q3, a first step-down unit, a second step-down unit, a rectifier element, and a relay. The base B of the transistor Q3 is connected to the MCU module, the emitter E of the transistor Q3 is grounded, the collector C of the transistor Q3 is connected to one end of the rectifier element, and the other end of the rectifier element is connected to the output terminal of the rectifier module and the relay. One end of the first step-down unit is connected to the MCU module, and the other end is connected to the base of the transistor Q3 and one end of the second step-down unit, and the other end of the second step-down unit is grounded. The relay has a first terminal, a second terminal, a third terminal, and a fourth terminal. The second terminal of the relay is connected to the output terminal of the rectifier module and the positive terminal of the rectifier element, the fourth terminal of the relay is connected to the negative terminal of the rectifier element and the collector C of the transistor Q3, and the third terminal of the relay is connected to the AC-B terminal of the power supply.

[0008] According to one embodiment of the present invention, the light sensing module includes a light sensing unit, one end of which is connected to the operating voltage, and the other end of which is connected to the MCU module.

[0009] According to one embodiment of the present invention, the PIR sensing module includes a PIR sensing unit; the third pin of the PIR sensing unit is connected to the operating voltage, the second pin of the PIR sensing unit is connected to the MCU module, and the first pin of the PIR sensing unit is grounded.

[0010] According to one embodiment of the present invention, the RC module includes a first filter unit, a third step-down unit, a fourth step-down unit, and a fifth step-down unit; one end of the first filter unit is connected to the AC-A terminal of the power supply, and the other end is connected to the fifth step-down unit; the third step-down unit and the fourth step-down unit are connected in series and then in parallel across the two ends of the first filter unit; the other end of the fifth step-down unit is connected to the input terminal of the rectifier module.

[0011] According to one embodiment of the present invention, the rectifier module includes a first rectifier unit and a second rectifier unit. The input terminal of the first rectifier unit is connected to the output terminal of the RC module, and its output terminal is connected to the input terminal of the voltage regulator module. The input terminal of the second rectifier unit is connected to the AC-B terminal of the power supply, and its output terminal is connected to the output terminal of the first rectifier unit, the input terminal of the voltage regulator module, and the switching module, respectively.

[0012] According to one embodiment of the present invention, the voltage regulator module includes a first voltage regulator unit, a second voltage regulator unit, and a third voltage regulator unit. One end of the first voltage regulator unit is connected to the output terminal of the rectifier module and the input terminal of the voltage conversion module, respectively, and the other end is grounded. The second voltage regulator unit and the third voltage regulator unit are connected in parallel with the first voltage regulator unit in sequence.

[0013] According to one embodiment of the present invention, it further includes a voltage regulator chip U2, the input terminal of which is connected to the output terminal of the voltage regulator module, and the output terminal of the voltage regulator chip U2 is connected to the input terminal of the voltage conversion module.

[0014] According to one embodiment of the present invention, the voltage conversion module includes a voltage conversion chip Q1, a fourth voltage regulator unit, and a fifth voltage regulator unit; the input terminal of the voltage conversion chip Q1 is connected to the output terminal of the voltage regulator module, and the output terminal of the voltage conversion chip Q1 is connected to the MCU module; one end of the fourth voltage regulator unit is connected to the output terminal of the voltage regulator module and the input terminal of the voltage conversion chip Q1, and the other end is grounded; one end of the fifth voltage regulator unit is connected to the output terminal of the voltage conversion chip Q1 and the MCU module, and the other end is grounded.

[0015] This utility model also provides a sensor light, including the above-mentioned dual-control circuit.

[0016] The beneficial effect of this invention lies in that the MCU module is connected to the PIR sensing module, the light sensing module, and the switch module respectively. In practical applications, if the PIR sensing module detects someone passing by, it sends a high-level signal to the MCU module. At this time, the MCU module detects the voltage value of the light sensing module. If the voltage value of the light sensing module is within a preset range, the MCU module sends a low-level signal to the switch module, making the switch module open; if the voltage value of the light sensing module does not reach the preset range, the MCU module continues to send a low-level signal to the switch module, preventing the switch module from conducting. In real-world applications, the output of the switch module is connected to the load LED light. The switch module controls the LED light to turn on or off based on the signal sent by the MCU module. In this way, the LED light can be controlled to turn on or off based on both ambient light and whether someone has passed by, thereby further improving energy-saving effects. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0018] Figure 1 The circuit diagram of the dual-control circuit in the embodiment is shown.

[0019] Explanation of reference numerals in the attached figures

[0020] 1-RC module; 11-First filter unit; 12-Third step-down unit; 13-Fourth step-down unit; 14-Fifth step-down unit; 2-Rectifier module; 21-First rectifier unit; 22-Second rectifier unit; 3-Voltage regulator module; 31-First voltage regulator unit; 32-Second voltage regulator unit; 33-Third voltage regulator unit; 4-Voltage conversion module; 41-Fourth voltage regulator unit; 42-Fifth voltage regulator unit; 5-MCU module; 6-PIR sensing module; 61-PIR sensing unit; 7-Photosensitive module; 71-Photosensitive unit; 8-Switch module; 81-First step-down unit; 82-Second step-down unit; 83-Rectifier element; 84-Relay; 9-First adjustment unit; 10-Second adjustment unit. Detailed Implementation

[0021] The following drawings will disclose several embodiments of this utility model. For clarity, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these practical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0022] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the utility model. They are merely used to distinguish components or operations described with the same technical terms and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0023] Please refer to Figure 1 , Figure 1 This is a circuit diagram of a dual-control circuit. This embodiment provides a dual-control circuit, which includes an RC module 1, a rectifier module 2, a voltage regulator module 3, a voltage conversion module 4, an MCU module 5, a PIR sensor module 6, a light sensor module 7, and a switch module 8. The input terminal of the RC module 1 is connected to the AC-A terminal of the power supply, and the output terminal of the RC module 1 and the AC-B terminal of the power supply are both connected to the input terminal of the rectifier module 2. The output terminal of the rectifier module 2 is connected to both the input terminal of the voltage regulator module 3 and the switch module 8. The output terminal of the voltage regulator module 3 is connected to the input terminal of the voltage conversion module 4. The output terminal of the voltage conversion module 4 is connected to the MCU module 5.

[0024] The input terminal of RC module 1 receives the AC power output from the AC-A terminal of the power supply. This AC power is stepped down by RC module 1 before being output. The input terminal of rectifier module 2 receives the stepped-down signal from RC module 1 and the AC signal output from the AC-B terminal of the power supply. It then rectifies both signals, converting the AC power into DC power. Rectifier module 2 outputs this DC power to voltage regulator module 3 and switch module 8, supplying them with electricity. Voltage regulator module 3 receives the DC power output from rectifier module 2 and regulates it to ensure a stable voltage supply to the circuit. Voltage conversion module 4 receives the output signal from voltage regulator module 3 and converts it into a rated voltage value, which is then output to MCU module 5 to power it.

[0025] MCU module 5 is connected to PIR sensor module 6, light sensor module 7, and switch module 8. PIR sensor module 6 senses human body heat signals and converts them into electrical signals. When PIR sensor module 6 detects someone passing by, it sends a high-level signal to MCU module 5. Light sensor module 7 senses ambient light and changes its voltage value according to changes in ambient light. Control chip U1 detects the voltage value of light sensor module 7 to determine the ambient light level.

[0026] In practical applications, when the PIR sensor module 6 detects someone passing by, it sends a high-level signal to the MCU module 5. At this time, the MCU module 5 detects the voltage value of the light sensor module 7. If the voltage value of the light sensor module 7 is within a preset range, the MCU module 5 sends a high-level signal to the switch module 8, turning the switch module 8 on. If the voltage value of the light sensor module 7 is not within the preset range, the MCU module 5 maintains a low-level signal to the switch module 8, preventing it from conducting. In real-world applications, the output of the switch module 8 is connected to the load LED light. The switch module 8 controls the LED light to turn on or off based on the signal from the MCU module 5. Thus, the LED light can be controlled to turn on or off based on both ambient light and whether someone has passed by. In practical applications, the voltage range value generated by the light sensor module 7 in a dark environment is preset in the MCU module 5. When the PIR sensor module 6 detects someone passing by, and the MCU module 5 receives the voltage value of the light sensor module 7 within the preset range, the MCU module 5 controls the switch module 8 to conduct, thereby turning on the LED light. This configuration ensures that the dual-control circuit only controls the LED lights in dark environments, preventing them from being triggered during the day or in bright environments, thereby further improving energy efficiency.

[0027] In this embodiment, the MCU module 5 includes a control chip U1. In this example, the control chip U1 is a microcontroller of model XYC-001. The control chip U1 has pins one through eight. The first pin of the control chip U1 is connected to the output terminal of the voltage conversion module 4, and the electrical signal output by the voltage conversion module 4 powers the control chip U1. The third pin of the control chip U1 is connected to the light sensing module 7, the seventh pin of the control chip U1 is connected to the PIR sensing module 6, and the fifth pin of the control chip U1 is connected to the switch module 8.

[0028] Specifically, when someone is within the sensing range of PIR sensor module 6, PIR sensor module 6 sends a high-level signal to control chip U1. At this time, if the voltage value of light sensor module 7 detected by the third pin of control chip U1 is within the preset range, the seventh pin of MCU module 5 outputs a high level, causing switch module 8 to conduct, thereby lighting up the LED connected to switch module 8. When the ambient light intensity does not reach the preset range value of light sensor module 7, even if PIR sensor module 6 detects a person, the seventh pin of MCU module 5 maintains a low level output, switch module 8 cannot conduct, and the LED connected to switch module 8 cannot be lit.

[0029] In one embodiment, the dual-control circuit further includes resistor R6 and resistor DP-R2. One end of resistor R6 is connected to the output terminal of rectifier module 2, and the other end is connected to the input terminal of voltage regulator module 3. Resistor DP-R2 is connected in parallel across resistor R6.

[0030] Furthermore, the switching module 8 includes a transistor Q3, a first buck converter 81, a second buck converter 82, a rectifier element 83, and a relay 84. The base (B) of transistor Q3 is connected to the MCU module 5, the collector (C) of transistor Q3 is connected to the output of the rectifier module 2 and the relay 84, and the emitter (E) of transistor Q3 is grounded. One end of the first buck converter 81 is connected to the MCU module 5, and the other end is connected to the base (B) of transistor Q3. One end of the second buck converter 82 is connected to both the first buck converter 81 and the base (B) of transistor Q3, and the other end is grounded. Both the first buck converter 81 and the second buck converter 82 are used for voltage reduction; the signal from the MCU module 5 is input to transistor Q3 after passing through the first buck converter 81 and the second buck converter 82. One end of the rectifier element 83 is connected to the collector (C) of transistor Q3, and the other end is connected to the output of the rectifier module 2 and the relay 84.

[0031] In this embodiment, transistor Q3 is an NPN transistor, the first step-down unit 81 is resistor R3, the second step-down unit 82 is resistor R2, and the rectifier element 83 is diode D5. One end of resistor R3 is connected to pin 7 of control chip U1, and the other end is connected to the base B of transistor Q3. One end of resistor R2 is connected to both the base B of transistor Q3 and resistor R2, and the other end is grounded. The cathode of diode D5 is connected to the collector C of transistor Q3, and the anode of diode D5 is connected to the output terminal of rectifier module 2 and relay 84. Relay 84 has a first terminal, a second terminal, a third terminal, and a fourth terminal. The second and fourth terminals are winding terminals, and the first and third terminals are switching terminals. The second terminal of relay 84 is connected to the output terminal of rectifier module 2 and the anode of rectifier element 83, and the fourth terminal of relay 84 is connected to the cathode of rectifier element 83 and the collector C of transistor Q3. The third terminal of relay 84 is connected to the AC-B terminal of the power supply, and the first terminal of relay 84 is used to connect to the LED light.

[0032] In practical applications, when the PIR sensor module 6 detects a human body, it sends a high-level signal to the control chip U1, causing pin 7 of the control chip U1 to go high. Simultaneously, the control chip U1 checks if the voltage of the photosensitive module 7 reaches a preset range. When the voltage of the photosensitive module 7 is within the preset range, the control chip U1 sends an enable signal to the switch module 8, causing pin 7 of the control chip U1 to output a high level. The high-level signal output by the control chip U1 is then stepped down by resistors R3 and R2 and input to transistor Q3. The base (B) of transistor Q3 is high, and the PN junction of transistor Q1 is forward biased, causing transistor Q3 to conduct. Diode D5 rectifies the electrical signal output by transistor Q3. After transistor Q3 conducts, relay 84 is energized, causing its switch to close. Since the switch of relay 84 is connected to an LED, when relay 84 is closed, the LED is illuminated. When the PIR sensor module 6 does not detect a human body, the seventh pin of the control chip U1 continuously outputs a low level. As a result, transistor Q3 remains in the off state, relay 84 cannot close, and the LED is off. Thus, by controlling the on / off state of transistor Q3, the closing state of the relay 84 is controlled, causing the LED connected to relay 84 to light up or turn off.

[0033] Furthermore, the light sensing module 7 includes a light sensing unit 71. One end of the light sensing unit 71 is connected to a 3.3V operating voltage, and the other end is connected to the MCU module 5. The light sensing unit 71 is used to sense ambient light; it can change its resistance according to different ambient light levels, thus causing the voltage across the light sensing unit 71 to change accordingly. The MCU module 5 controls the switching state of the switch module 8 by detecting and determining whether the voltage across the light sensing unit 71 is within a preset range.

[0034] In this embodiment, the light sensing unit 71 includes a photoresistor CDS, a resistor R13, and a resistor R10. One end of the photoresistor CDS is connected to a 3.3V operating voltage, and the other end is connected in series with the resistor R13. One end of the resistor R13 is connected to the third pin of the control chip U1 and one end of the resistor R10, while the other end of the resistor R10 is grounded. The resistance value of the photoresistor CDS varies depending on the ambient light intensity. The brighter the ambient light, the lower the resistance value of the photoresistor CDS, and the higher the voltage across its terminals. Thus, the control chip U1 determines the ambient light intensity based on the voltage value across the photoresistor CDS. Resistors R13 and R10 are used for voltage division to prevent high voltage from damaging the control chip U1.

[0035] In one embodiment, the dual-control circuit further includes a first adjustment unit 9, which is connected to the MCU module 5 and is used to adjust the range of responses of the MCU module 5 to the light sensing module 7. The first adjustment unit 9 includes an adjustable resistor RPL1 and a resistor R11. One end of resistor R11 is connected to a 3.3V operating voltage and one end of the photoresistor CDS, respectively. Its other end is connected to the second pin of the control chip U1 and one end of the adjustable resistor RPL1, and the other end of the adjustable resistor RPL1 is grounded. By changing the resistance value of the adjustable resistor RPL1, the control chip U1 can adjust the range of responses to the light sensing module 7 according to different resistance values ​​of the first adjustment unit 9, thereby enabling the dual-control circuit to sense ambient light of different lumens.

[0036] Furthermore, the PIR sensing module 6 includes a PIR sensing unit 61. The PIR sensing unit 61 has a first pin, a second pin, and a third pin. The first pin of the PIR sensing unit 61 is grounded, the second pin is connected to the MCU module 5, and the third pin is connected to the power supply voltage. A 3.3V operating voltage powers the PIR sensing unit 61 through its third pin. When the PIR sensing unit 61 senses a person, its second pin sends a high-level signal to the seventh pin of the control chip U1.

[0037] In this example, the PIR sensing module 6 also includes resistors R9 and R4. One end of resistor R9 is connected to a 3.3V operating voltage, and the other end is connected to the second pin of the PIR sensing unit 61. Resistor R9 limits the current to prevent damage to the PIR sensing unit 61. One end of resistor R4 is connected to the first pin of the PIR sensing unit 61, and the other end is grounded. Resistor R4 protects the first pin of the PIR sensing unit 61 from direct grounding.

[0038] Furthermore, the PIR sensing module also includes capacitors C9 and C10. One end of capacitor C9 is connected to resistor R9 and the third pin of PIR sensing unit 61, while the other end is grounded. Capacitor C10 is connected in parallel with capacitor C9, and both capacitors C9 and C10 are used for filtering.

[0039] In one embodiment, the MCU module 5 includes a preset delay unit for controlling the conduction time of the switch module 8. When the PIR sensor module 6 detects a person and the voltage value of the light sensor module 7 is within a preset range, the MCU module 5 controls the switch module 8 to conduct and simultaneously triggers the delay unit, causing the switch module 8 to conduct within a limited time. Furthermore, the dual-control circuit also includes a second adjustment unit 10, which is used to adjust the time of the delay unit. The second adjustment unit 10 includes an adjustable resistor RPL2 and a resistor R5. Resistor R5 is used for voltage division; one end of resistor R5 is connected to the 3.3V operating voltage and resistor R9, and the other end is connected to the adjustable resistor RPL2 and the sixth pin of the control chip U1. The other end of the adjustable resistor RPL2 is grounded. By changing the resistance value of the adjustable resistor RPL2, the voltage value across the adjustable resistor RPL2 is changed, and the control chip U1 adjusts the delay time of the LED light accordingly based on the different voltage values ​​of the adjustable resistor RPL2.

[0040] Additionally, RC module 1 includes a first filter unit 11, a third step-down unit 12, a fourth step-down unit 13, and a fifth step-down unit 14. One end of the first filter unit 11 is connected to the AC-A terminal of the power supply, and the other end is connected to the fifth step-down unit 14. The third step-down unit 12 and the fourth step-down unit 13 are connected in series, and the third step-down unit 12 and the fourth step-down unit 13 are connected in parallel across the first filter unit 11. In this embodiment, the first filter unit 11 is a capacitor, the third step-down unit 12 is a resistor R7, the fourth step-down unit 13 is a resistor R8, and the fifth step-down unit 14 is a DP-R1. In practical applications, the first filter unit 11 is used to filter high-frequency signals, and the third step-down unit 12, the fourth step-down unit 13, and the fifth step-down unit 14 are used for current limiting and voltage reduction. The AC power output from the AC-A terminal of the power supply is reduced in voltage after passing through RC module 1 to prevent high-voltage current from directly entering the circuit and damaging circuit components.

[0041] The rectifier module 2 includes a first rectifier unit 21 and a second rectifier unit 22. The input terminal of the first rectifier unit 21 is connected to the output terminal of the RC module 1, and the output terminal of the first rectifier unit 21 is connected to the second rectifier unit 22 and the voltage regulator module 3. The input terminal of the second rectifier unit 22 is connected to the AC-B terminal of the power supply, and the output terminal of the second rectifier unit 22 is connected to the output terminal of the first rectifier unit 21, the output terminal of the voltage regulator module 3, and the switching module 8. The first rectifier unit 21 receives the electrical signal output from the RC module 1 and rectifies it before outputting it. The second rectifier unit 22 receives the electrical signal output from the AC-B terminal of the power supply and rectifies it before outputting it.

[0042] In this embodiment, the first rectification unit 21 includes rectifier diodes D1 and D2, and the second rectification unit 22 includes rectifier diodes D3 and D4. In the actual circuit, the anode of rectifier diode D1 is connected to resistor DP-R1, and the cathode of rectifier diode D1 is connected to the input terminal of voltage regulator module 3. The cathode of rectifier diode D2 is connected to resistor DP-R1 and the anode of rectifier diode D1, and the anode of rectifier diode D2 is grounded. The anode of rectifier diode D3 is connected to the AC-B terminal of the power supply, and the cathode of rectifier diode D3 is connected to the cathode of rectifier diode D1, the input terminal of voltage regulator module 3, and the switching module 8. The cathode of rectifier diode D4 is connected to the AC-B terminal of the power supply and the cathode of rectifier diode D3, and the anode of rectifier diode D4 is grounded. Thus, the current output from the AC-A terminal of the power supply is stepped down by the RC module 1 and then input to the first rectifier unit 21, while the current output from the AC-B terminal of the power supply is input to the second rectifier unit 22. The first rectifier unit 21 and the second rectifier unit 22 rectify the AC power of the power supply, thereby converting the AC power into DC power.

[0043] The voltage regulator module 3 includes a first voltage regulator unit 31, a second voltage regulator unit 32, and a third voltage regulator unit 33. One end of the first voltage regulator unit 31 is connected to both the output of the rectifier module 2 and the input of the filter module, while the other end of the first voltage regulator unit 31 is grounded. The second voltage regulator unit 32 and the third voltage regulator unit 33 are connected in parallel with the first voltage regulator unit 31.

[0044] In this example, the first voltage regulator unit 31 is a Zener diode D6, which is used to regulate the voltage of the electrical signal output from the rectifier module 2. The second voltage regulator unit 32 is a capacitor C7, which is a large-capacity electrolytic capacitor used to filter out low-frequency interference. The third voltage regulator unit 33 is a capacitor C6, which is a small-capacity non-polarized capacitor used to filter out high-frequency interference. The cathode of the Zener diode D6 is connected to the cathode of the rectifier diode D1 and the input terminal of the filter module, while the anode of the Zener diode D6 is grounded. Capacitors C7 and 6 are connected in parallel with the Zener diode D6. Thus, the electrical signal output from the rectifier module 2 passes through the rectifier diode D6, capacitor C7, and capacitor C6 in sequence, transforming the electrical signal output from the rectifier module 2 into a stable electrical signal output to the filter module, thereby reducing voltage fluctuations in the circuit and ensuring voltage stability.

[0045] In one embodiment, the voltage regulator module 3 further includes capacitors C5 and C8, which are connected in parallel with the first voltage regulator unit 31, the second voltage regulator unit 32, and the third voltage regulator unit 33, respectively. Capacitors C5 and C8 are used to increase the capacitance. Since a larger capacitance results in better filtering of low-frequency signals, the parallel connection of capacitors C5 and C8 further improves the stability of the circuit.

[0046] In one embodiment, the dual-control circuit further includes a voltage regulator U2, a capacitor C4, and a resistor R12. The input terminal of the voltage regulator U2 is connected to the output terminal of the voltage regulator module 3, and the output terminal of the voltage regulator U2 is connected to the input terminal of the voltage conversion module 4. One end of the capacitor C4 is connected to both the output terminal of the voltage regulator U2 and the input terminal of the voltage conversion module 4, and the capacitor C4 is used for filtering. The resistor R12 is connected in parallel between the input and output terminals of the voltage regulator U2, and the resistor R12 is used for voltage division. The voltage regulator U2 is a 78L05 voltage regulator. In actual use, the electrical signal output by the voltage regulator module 3 is output as a stable 5V voltage after passing through the voltage regulator.

[0047] The voltage conversion module 4 includes a voltage conversion chip Q1, a fourth voltage regulator unit 41, and a fifth voltage regulator unit 42. The input terminal of the voltage conversion chip Q1 is connected to the output terminal of the voltage regulator module 3, and the output terminal of the voltage conversion chip Q1 is connected to the MCU chip. One end of the fourth voltage regulator unit 41 is connected to both the input terminal of the voltage regulator module 3 and the input terminal of the voltage conversion chip Q1, and the other end of the fourth voltage regulator unit 41 is grounded. One end of the fifth voltage regulator unit 42 is connected to both the output terminal of the voltage conversion chip Q1 and the first pin of the MCU module 5. The electrical signal output from the voltage regulator module 3 is filtered by the fourth voltage regulator unit 41 and then input to the voltage conversion chip Q1. The voltage conversion chip Q1 converts the filtered electrical signal into an electrical signal with a rated voltage value and outputs it. The fifth voltage regulator unit 42 filters the electrical signal output from the voltage conversion chip Q1 before outputting it.

[0048] In this example, voltage converter Q1 uses a model RY6313. The fourth voltage regulator unit 41 is capacitor C1, and the fifth voltage regulator unit 42 is capacitor C3. One end of capacitor C1 is connected to both capacitor C4 and the input terminal of voltage converter Q1, while the other end is grounded. One end of capacitor C3 is connected to both the output terminal of voltage converter Q1 and the first pin of control chip U1. The electrical signal output from voltage regulator module 3 is filtered by capacitor C1 and then input to voltage converter Q1. Voltage converter Q1 converts the filtered electrical signal into a rated voltage output signal, and capacitor C3 further filters the output signal from voltage converter Q1. The filtered electrical signal is then input to control chip U1 to power it.

[0049] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A dual-control circuit, characterized in that, include: The system comprises an RC module (1), a rectifier module (2), a voltage regulator module (3), a voltage conversion module (4), an MCU module (5), a PIR sensor module (6), a light sensor module (7), and a switch module (8). The input terminal of the RC module (1) is connected to the AC-A terminal of the power supply. The input terminal of the rectifier module (2) is connected to the output terminal of the RC module (1) and the AC-B terminal of the power supply. The output terminal of the rectifier module (2) is connected to the input terminal of the voltage regulator module (3) and the switch module (8). The output terminal of the voltage regulator module (3) is connected to the input terminal of the voltage conversion module (4). The output terminal of the voltage conversion module (4) is connected to the MCU module (5). The PIR sensor module (6) is connected to the MCU module (5). The light sensor module (7) is connected to the MCU module (5). The input terminal of the switch module (8) is connected to the MCU module (5).

2. The dual-control circuit according to claim 1, characterized in that, The switching module (8) includes a transistor Q3, a first step-down unit (81), a second step-down unit (82), a rectifier element (83), and a relay (84). The base B of the transistor Q3 is connected to the MCU module (5), the emitter E of the transistor Q3 is grounded, and the collector C of the transistor Q3 is connected to one end of the rectifier element (83). The other end of the rectifier element (83) is connected to the output terminal of the rectifier module (2) and the relay (84). One end of the first step-down unit (81) is connected to the MCU module (5), and the other end of the first step-down unit (82) is connected to the MCU module (5). One end is connected to the base of the transistor Q3 and one end of the second step-down unit (82), and the other end of the second step-down unit (82) is grounded; the relay (84) has a first end, a second end, a third end and a fourth end, the second end of the relay (84) is connected to the output end of the rectifier module (2) and the positive terminal of the rectifier element (83), the fourth end of the relay (84) is connected to the negative terminal of the rectifier element (83) and the collector C of the transistor Q3, and the third end of the relay (84) is connected to the AC-B terminal of the power supply.

3. The dual-control circuit according to claim 1, characterized in that, The light sensing module (7) includes a light sensing unit (71), one end of which is connected to the operating voltage, and the other end of which is connected to the MCU module (5).

4. The dual-control circuit according to claim 1, characterized in that, The PIR sensing module (6) includes a PIR sensing unit (61); the third pin of the PIR sensing unit (61) is connected to the operating voltage, the second pin of the PIR sensing unit (61) is connected to the MCU module (5), and the first pin of the PIR sensing unit (61) is grounded.

5. The dual-control circuit according to claim 1, characterized in that, The RC module (1) includes a first filter unit (11), a third step-down unit (12), a fourth step-down unit (13), and a fifth step-down unit (14); one end of the first filter unit (11) is connected to the AC-A terminal of the power supply, and the other end is connected to the fifth step-down unit (14); the third step-down unit (12) and the fourth step-down unit (13) are connected in series and then in parallel to the two ends of the first filter unit (11); the other end of the fifth step-down unit (14) is connected to the input terminal of the rectifier module (2).

6. The dual-control circuit according to claim 1, characterized in that, The rectifier module (2) includes a first rectifier unit (21) and a second rectifier unit (22). The input terminal of the first rectifier unit (21) is connected to the output terminal of the RC module (1), and its output terminal is connected to the input terminal of the voltage regulator module (3). The input terminal of the second rectifier unit (22) is connected to the AC-B terminal of the power supply, and its output terminal is connected to the output terminal of the first rectifier unit (21), the input terminal of the voltage regulator module (3), and the switching module (8), respectively.

7. The dual-control circuit according to claim 1, characterized in that, The voltage regulator module (3) includes a first voltage regulator unit (31), a second voltage regulator unit (32) and a third voltage regulator unit (33). One end of the first voltage regulator unit (31) is connected to the output terminal of the rectifier module (2) and the input terminal of the voltage conversion module (4), and the other end is grounded. The second voltage regulator unit (32) and the third voltage regulator unit (33) are connected in parallel with the first voltage regulator unit (31) in sequence.

8. The dual-control circuit according to claim 1, characterized in that, It also includes a voltage regulator chip U2, the input terminal of which is connected to the output terminal of the voltage regulator module (3), and the output terminal of the voltage regulator chip U2 is connected to the input terminal of the voltage conversion module (4).

9. The dual-control circuit according to claim 1, characterized in that, The voltage conversion module (4) includes a voltage conversion chip Q1, a fourth voltage regulator unit (41), and a fifth voltage regulator unit (42). The input terminal of the voltage conversion chip Q1 is connected to the output terminal of the voltage regulator module (3), and the output terminal of the voltage conversion chip Q1 is connected to the MCU module (5). One end of the fourth voltage regulator unit (41) is connected to the output terminal of the voltage regulator module (3) and the input terminal of the voltage conversion chip Q1, and the other end is grounded. One end of the fifth voltage regulator unit (42) is connected to the output terminal of the voltage conversion chip Q1 and the MCU module (5), and the other end is grounded.

10. A sensor light, characterized in that, Includes the dual-control circuit as described in any one of claims 1-9.

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