Flood lamp circuit

Abstract

The utility model discloses a floodlight circuit, and relates to the technical field of illumination. The system comprises a main control chip, a charging management module, a boost management module, an indication module and a switch module, the charging management module, the boost management module, the switch module and the indication module are respectively connected with the main control chip, and the charging management module is also connected with the boost management module; the charging management module comprises a battery and is used for managing battery charging and supplying power to the boost management module; the boost management module comprises a light source and is used for adjusting the light source according to the light source control signal of the main control chip; the main control chip is used for monitoring and controlling each module; the indication module is used for performing indication lamp display according to the charging state of the battery monitored by the main control chip; and the switch module comprises a key and is used for receiving key control, so that the main control chip performs on-off control on the light source according to the key control. The functions of all the modules are uniformly and efficiently managed through the main control chip, so that the floodlight is more convenient to use.

Description

Technical Field

[0001] The utility model generally relates to the field of lighting technology, and more particularly to a floodlight circuit. Background Art

[0002] A floodlight is a point light source that can uniformly irradiate in all directions, and its irradiation range can be adjusted arbitrarily. With the increasingly widespread application of floodlights in people's lives, there are higher requirements for the convenience of using floodlights. How to enable floodlights to achieve more effective control and meet the application requirements of most scene work lights has become an urgent problem to be solved.

[0003] It should be noted that the information disclosed in the above background art section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute the prior art known to those of ordinary skill in the art. Summary of the Utility Model

[0004] A series of simplified concepts are introduced in the Summary of the Utility Model section, which will be further described in detail in the Detailed Implementation section. The Summary of the Utility Model section does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt to determine the protection scope of the claimed technical solution.

[0005] One main object of the present utility model is to overcome at least one defect of the above-mentioned prior art, and to provide a floodlight circuit that can achieve more effective control.

[0006] To achieve the above utility model object, the present utility model adopts the following technical solutions:

[0007] According to one aspect of the present utility model, there is provided a floodlight circuit, including a main control chip, a charging management module, a boost management module, an indication module, and a switch module. The charging management module, the boost management module, the switch module, and the indication module are respectively connected to the main control chip, and the charging management module is further connected to the boost management module;

[0008] The charging management module includes a battery, which is used to manage the battery charging and supply power to the boost management module;

[0009] The boost management module includes a light source, which is used to adjust the light source according to the light source control signal of the main control chip;

[0010] The main control chip is used to monitor and control each module;

[0011] The indication module is used to perform indicator light display according to the charging state of the battery monitored by the main control chip; and

[0012] The switch module includes a key for receiving key control, so that the main control chip controls the switching of the light source according to the key control.

[0013] According to an embodiment of the present invention, the main control chip has a temperature detection pin, a charging switch pin, a light source switch pin, a key control pin, an indicator control pin, a dimming control pin, a battery voltage monitoring pin, a voltage detection pin, and a debugging pin.

[0014] According to an embodiment of the present invention, the charging management module further includes an input power supply circuit, a first control chip, and a first MOS switch circuit;

[0015] The input power supply circuit is connected to the voltage input pin of the first control chip;

[0016] The first control chip is connected to the temperature detection pin, the charging status pin, and the first MOS switch circuit, and is used to control the charging process of the battery;

[0017] The first MOS switch circuit is connected to the charging switch pin and is used to control the charging switch of the battery.

[0018] According to an embodiment of the present invention, the boost management module includes a drive control circuit and a dimming control circuit;

[0019] The drive control circuit includes a second control chip and a second MOS switch connected to the gate terminal pin of the second control chip. The second control chip is used to control the conduction of the second MOS switch;

[0020] One end of the dimming control circuit is connected to the dimming control pin of the second control chip, and the other end is connected to the dimming control pin of the main control chip, and is used to adjust the brightness of the light source through a PWM signal.

[0021] According to an embodiment of the present invention, there are four indicator control pins, namely a first indicator control pin, a second indicator control pin, a third indicator control pin, and a fourth indicator control pin;

[0022] The indicator module includes four indicators and current limiting resistors respectively connected to the indicators. The four indicators are respectively connected to the first indicator control pin, the second indicator control pin, the third indicator control pin, and the fourth indicator control pin.

[0023] According to an embodiment of the present utility model, it further includes: a battery voltage monitoring module, which has three connection terminals. Its first connection terminal is connected to the battery voltage monitoring pin of the main control chip, the second connection terminal is connected to the output terminal of the battery, and the third connection terminal is connected to the voltage detection pin, for monitoring the voltage of the battery.

[0024] According to an embodiment of the present utility model, the debugging pin is used for programming and debugging the control chip.

[0025] According to an embodiment of the present utility model, it further includes: a USB power management module, which is connected to the main control chip and the battery, for supplying power to the outside.

[0026] According to an embodiment of the present utility model, the main control chip further includes a USB startup pin and a USB power switch pin. The USB power management module includes a third control chip and a switch control circuit. The third control chip is connected to the USB startup pin, and the switch control circuit is connected to the USB power switch pin.

[0027] According to an embodiment of the present utility model, the switch module is further connected to the USB power management module, for starting the USB power management module when the light source is turned off.

[0028] As can be seen from the above technical solutions, a floodlight circuit of the present utility model includes a main control chip, a charging management module, a boost management module, an indication module, and a switch module. The charging management module, the boost management module, the switch module, and the indication module are respectively connected to the main control chip, and the charging management module is further connected to the boost management module; the charging management module includes a battery, for managing the charging of the battery and supplying power to the boost management module; the boost management module includes a light source, for adjusting the light source according to the light source control signal of the main control chip; the main control chip is used for monitoring and controlling each module; the indication module is used for indicating the charging state of the battery monitored by the main control chip through an indicator light; the switch module includes a button, for receiving button control, so that the main control chip controls the on / off of the light source according to the button control. The main control chip can control and adjust the brightness and on / off of the light source. Moreover, the floodlight has a storage battery, and when charging the storage battery, it can timely know the charging situation and indicate it through an indicator light. The boost management module can provide voltages suitable for different brightnesses for the light source. By effectively controlling each module of the entire floodlight circuit through the main control chip, the floodlight is more convenient to use, meets the needs of more application scenarios, and improves the user experience. Description of the Drawings

[0029] The various objects, features, and advantages of the present utility model will become more apparent by considering the following detailed description of the preferred embodiments of the present utility model in conjunction with the accompanying drawings. The accompanying drawings are only exemplary illustrations of the present utility model and are not necessarily drawn to scale. In the drawings, the same reference numerals always denote the same or similar components. Among them:

[0030] Figure 1 is a schematic diagram of a floodlight circuit structure shown according to an exemplary embodiment.

[0031] Figure 2 is a schematic diagram of a main control chip of a floodlight circuit shown according to an exemplary embodiment.

[0032] Figure 3 is a schematic diagram of a charging management module of a floodlight circuit shown according to an exemplary embodiment.

[0033] Figure 4 is a schematic diagram of an indication module of a floodlight circuit shown according to an exemplary embodiment.

[0034] Figure 5 is a schematic diagram of a boost management module of a floodlight circuit shown according to an exemplary embodiment.

[0035] Figure 6 is a schematic diagram of a switch management module of a floodlight circuit shown according to an exemplary embodiment.

[0036] Figure 7 is a schematic diagram of a battery voltage monitoring module of a floodlight circuit shown according to an exemplary embodiment.

[0037] Figure 8 is a schematic diagram of a USB power management module of a floodlight circuit shown according to an exemplary embodiment. Detailed implementation manners

[0038] Now, example embodiments will be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in various forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this utility model will be thorough and complete, and the concept of the example embodiments will be fully conveyed to those skilled in the art. The same reference numerals in the figures denote the same or similar structures, and thus their detailed descriptions will be omitted.

[0039] The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of the embodiments of the present utility model. However, those skilled in the art will realize that the technical solutions of the present utility model may be practiced without one or more of the specific details, or other methods, components, materials, etc. may be adopted. In other cases, well-known structures, materials, or operations are not shown or described in detail to avoid obscuring aspects of the present utility model.

[0040] In the following description, numerous specific details are given to provide a more thorough understanding of the present utility model. However, it is obvious to those skilled in the art that the present utility model may be implemented without one or more of these details. In other examples, some technical features known to the art are not described to avoid confusion with the present utility model.

[0041] Refer to Figure 1 As shown, in one embodiment, a floodlight circuit is provided, including a main control chip 100, a charging management module 200, a boost management module 300, an indication module 400, and a switch module 500. The charging management module 200, the boost management module 300, the switch module 500, and the indication module 400 are respectively connected to the main control chip 100, and the charging management module 200 is also connected to the boost management module 300. Refer to Figures 1-5 , specifically, the main control chip 100 is used to monitor and control each module. The charging management module 200 includes a battery 201, which is used to manage the charging of the battery 201 and supply power to the boost management module 300. The boost management module 300 includes a light source 303, which is used to adjust the light source 303 according to the light source control signal of the main control chip 100. The indication module 400 is used to perform indicator light display according to the charging state of the battery 201 monitored by the main control chip 100. The switch module 500 includes a key 501, which is used to receive key control, so that the main control chip 500 performs on / off control of the light source 303 according to the key control. The main control chip 100 uniformly and efficiently manages the functions of each module, can control and adjust the brightness and on / off of the light source 303, and the floodlight has a storage battery. When charging the storage battery, the charging situation can be known in time and indicated by an indicator light. The boost management module 300 can provide voltages suitable for different brightnesses for the light source 303, and can adjust the brightness of the light source 303 according to the charging situation of the battery 201. The floodlight is more convenient to use after charging, meets the needs of more application scenarios, and improves the user experience.

[0042] Refer to Figure 2As shown, in a specific example, the main control chip 100 has a temperature detection pin, a charging switch pin, a light source switch pin, a key control pin, an indicator light control pin, a dimming control pin, a battery voltage monitoring pin, a voltage detection pin, and a debugging pin.

[0043] Specifically, the temperature detection pin corresponds to the Tempture pin 1. The light source switch pin has two pins, namely the KEY1_ON pin 16 and the KEY2_ON pin 10. The KEY2_ON pin 10: a key input terminal for detecting the state of key 2. The KEY1_ON pin 16: a key input terminal for detecting the state of key 1. The battery voltage monitoring pin corresponds to the VBAT_AD corresponding pin 2, which is used as an analog input terminal for battery voltage detection to monitor the battery voltage. The charging state corresponds to the Chargeingstate pin 4, which is used as a charging state input terminal to receive the charging state signal. The nRST pin 4 is a reset pin, and a low level resets the microcontroller. The light source switch pin corresponds to the WEI Light on pin 5, which can be used to control the turning on of the light source. The charging switch pin corresponds to the Charge_SW pin 6: a charging switch input terminal for controlling the charging switch of the battery. The voltage detection pin corresponds to the BSV_Sampling pin 8 for detecting the system voltage. The 5V pin 8: a 5V power input terminal for supplying power to the main control chip 100. The OI_5V_AD pin 20: a 5V voltage detection analog input terminal. The debugging pins correspond to the ICSP_DAT pin 19 and the ICSP_CLK pin 18: used for programming and debugging the microcontroller. The USB_EN pin 19: controls the enabling of the USB function. The USB_PSW pin 18: a USB power switch pin for controlling the USB power switch. The dimming control pin corresponds to the PWM_DIM pin 17: a PWM dimming control pin for controlling the brightness of the light source. The indicator light control pins include: the LED1 pin 15, the LED2 pin 14, the LED3 pin 13, and the LED4 pin 11. The input voltage monitoring pin is the VIN_AD pin 12: used for monitoring the input voltage. The main control chip 100 of this embodiment can be programmed and debugged through the debugging pins to implement various circuit control functions, and control each module of the entire floodlight circuit after being connected through the above pins, which will be specifically described in the following examples. To achieve more reasonable and efficient control and be compatible with multiple functions.

[0044] Among them, by debugging the main control chip 100, when the battery 201 is charging, it is possible to control the battery to support different percentage charging ratios and correspondingly support providing different illumination brightness. The higher the lumen of the light, the brighter the illumination. Specifically, for example, the floodlight can be used by turning the light on and off during charging, and the percentage of charge of the battery and the corresponding illumination brightness can be set according to requirements. For example, when charging 80%, the illumination brightness is set to 20%, and when charging 50%, the illumination brightness is set to 50%. The specific parameter debugging can set the brightness lumen and charging percentage according to the requirements of the actual application scenario to meet the needs of different application scenarios. This makes the use of the floodlight more convenient and improves the user experience.

[0045] Referring to Figure 3 As shown, in a specific example, the charging management module further includes an input power circuit 210, a first control chip 220, and a first MOS switch circuit 230; the input power circuit 210 is connected to the voltage input pin of the first control chip 220, which is the VIN pin 8; the first control chip 220 is connected to the temperature detection pin, the charging status pin, and the first MOS switch circuit, and is used to control the charging process of the battery.

[0046] Among them, the first MOS switch circuit 230 is connected to the charging switch pin, that is, pin 6 of the main control chip 100, through the connection terminal 202, and is used to control the charging switch of the battery 201. The connection terminal 203 is connected to the charging status pin of the main control chip 100. It further includes a charging circuit 240, and the charging circuit 240 includes a power supply 201. The charging circuit 240 is connected to the first control chip 220 to achieve charging of the power supply 201. The first control chip 220 ensures that the battery 201 can be safely and efficiently charged during the charging process, while avoiding overcharging, over-discharging and other situations, and can timely obtain the charging situation.

[0047] Specifically, the TS pin 3 of the first control chip 220 is used to monitor the battery temperature to prevent overheating during charging and can be connected to the temperature detection pin 1 of the main control chip 100. The STAT pin 4 is connected to the output terminal 203 and then to the charging status pin 4 of the main control chip 100, and the main control chip controls the display and lighting of the LED indicator to indicate the charging status through different level signals, such as charging, full charge, fault, etc. The CELL pin 4 is used to monitor the battery voltage to determine the charging stage. The BAT pin 5 is directly connected to the positive pole of the battery to provide the charging current. The CS pin 6 is used to detect the charging current and monitor the current flowing through the battery through an external resistor to control the current magnitude during the charging process. The LX pin 7 is connected to the external inductor L1 for boost conversion. The BS pin 1 can adjust the charging voltage and current through the current generated by the switching inductor. The first control chip 220 can output a signal through its control pin to control the gate of the first MOS switch Q1, thereby controlling the flow of the charging current. The first control chip 220 can monitor the charging current and voltage and adjust the conduction state of the first MOS switch Q1 through feedback to achieve stable and safe charging.

[0048] Among them, the diode D3 in the charging circuit 240 prevents the current from flowing back, and the current limiting resistor R3B ensures the safety of the charging current. The filter capacitors C7, C7A, C4, C5, C9A, C3, etc. are all used to eliminate the noise in the circuit to ensure a stable output.

[0049] Among them, referring to Figure 6 As shown, the switch module 500 includes control circuits for two switch buttons, namely the switch S1 control circuit 510 and the switch S2 control circuit 520. The KEY2_ON pin 10: the button input terminal is used to detect the state of button 2. The connection terminal of the switch S1 control circuit 510 is connected to the KEY1_ON pin 16. The main control chip 100 can detect the state of the button and control the light source 303.

[0050] Referring to Figure 4As shown, specifically, there are four indication control pins, namely the first indicator control pin, the second indicator control pin, the third indicator control pin, and the fourth indicator control pin; specifically, they are LED1 pin 15, LED2 pin 14, LED3 pin 13, and LED4 pin 11. The indication module includes four indicators, namely LED1, LED2, LED3, and LED4, corresponding to light-emitting diodes D23, D24, D25, and D26, and current-limiting resistors such as R57, R58, R30, and R63 are respectively connected to the respective indicators. The four indicators are respectively connected to the first indicator control pin, the second indicator control pin, the third indicator control pin, and the fourth indicator control pin. Optionally, the charging status of the battery 302 is displayed by the indicators. For example, when the charging level is 25%, 50%, 75%, and 100%, one, two, three, and four indicators are lit respectively, and a red light is displayed in case of a charging fault, etc. It can be set according to actual needs and is not limited here.

[0051] Referring to Figure 5 As shown, in a specific example, the boost management module 300 includes a drive control circuit 320 and a dimming control circuit 310; the drive control circuit 320 includes a second control chip 301 and a second MOS switch 302 connected to the gate terminal pin of the second control chip 302. The second control chip 301 is used to control the conduction of the second MOS switch 302; one end of the dimming control circuit 310 is connected to the dimming control pin DIM pin 2 of the second control chip 301, and the other end connection terminal 304 is connected to the dimming control pin PWM_DIM pin 17 of the main control chip 100, and is used to adjust the brightness of the light source 303 through a PWM signal. The boost module management module 200 inputs voltage from the battery 201. Among them, MOS switches Q3 and Q4 are used to provide a constant current source to ensure the stability of the LED current. Current-limiting resistors R15 and R10 control the current passing through MOS switches Q3 and Q4. The triode Q9 is used for current amplification or switch control and can receive a control signal from the connection terminal 303. Resistors R39 and R36 are used to control the conduction state of Q9.

[0052] Referring to Figure 7 In a specific example, it further includes: a battery voltage monitoring module 600, which has three connection terminals. Its first connection terminal is connected to the battery voltage monitoring pin of the main control chip 100, the second connection terminal is connected to the output terminal of the battery, and the third connection terminal is connected to the voltage detection pin, and is used to monitor the battery voltage.

[0053] Specifically, the battery voltage monitoring pin is connected to the corresponding VBAT_AD corresponding pin 2, and the first connection end 601 is connected to the VBAT_AD pin 2 for monitoring the battery voltage. The voltage detection pin corresponds to the BSV_Sampling pin 8, and the third connection end 603 is connected to the BSV_Sampling pin 8 for detecting the system voltage. The second connection end 602 is connected to the battery output end. Thus, the voltage condition of the battery can be monitored and detected in real time.

[0054] Referring to Figure 8 , in a specific example, it further includes: a USB power management module 700, which is connected to the main control chip 100 and the battery 201 and is used for external power supply.

[0055] In a specific example, the main control chip further includes a USB startup pin and a USB power switch pin. The USB power management module includes a third control chip 710 and a switch control circuit 720. The third control chip 710 is connected to the USB startup pin, that is, the USB_EN pin 19 controls the enabling of the USB function. The switch control circuit is connected to the USB power switch pin. The third control chip 710 is a USB power management chip for controlling power supply. The connection end 702 is connected to the USB power switch pin, that is, the USB_PSW pin 18 to control the switch of the USB power supply. The connection end 703 is connected to the battery output end.

[0056] Referring to Figure 6 and Figure 8 As shown, in a specific example, the switch module 500 is also connected to the USB power management module 700. Specifically, it is connected through the connection end 501 of the switch module to the connection end 701 of the USB power management module 700. It is used to start the USB power management module when the light source is turned off.

[0057] It should be understood that the multiple examples described above can be utilized in multiple directions (such as tilted, inverted, horizontal, vertical, etc.) and in multiple configurations without departing from the principle of the present invention. The embodiments shown in the drawings are only shown and described as examples of the effective application of the principle of the present invention, and the present invention is not limited to any specific details of these embodiments.

[0058] Of course, once the above description of the representative embodiments is carefully considered, those skilled in the art will easily understand that various modifications, additions, substitutions, deletions, and other changes can be made to these specific embodiments, and these changes are within the scope of the principle of the present invention. Therefore, the foregoing detailed description should be clearly understood to be given only by way of illustration and example, and the spirit and scope of the present invention are defined only by the appended claims and their equivalents.

Claims

1. A floodlight circuit, characterized in that, It includes a main control chip, a charging management module, a boost management module, an indication module, and a switch module. The charging management module, the boost management module, the switch module, and the indication module are respectively connected to the main control chip, and the charging management module is also connected to the boost management module; The charging management module includes a battery, which is used to manage the charging of the battery and supply power to the boost management module; The boost management module includes a light source, which is used to adjust the light source according to the light source control signal of the main control chip; The main control chip is used to monitor and control each module; The indication module is used to display an indicator light according to the charging state of the battery monitored by the main control chip; and The switch module includes a key, which is used to receive key control, so that the main control chip controls the on / off of the light source according to the key control.

2. The floodlight circuit according to claim 1, characterized in that, The main control chip includes a main control chip, which has a temperature detection pin, a charging switch pin, a light source switch pin, a key control pin, an indicator light control pin, a dimming control pin, a battery voltage monitoring pin, a voltage detection pin, and a debugging pin.

3. The floodlight circuit according to claim 2, wherein, The charging management module further includes an input power supply circuit, a first control chip, and a first MOS switch circuit; The input power supply circuit is connected to the voltage input pin of the first control chip; The first control chip is connected to the temperature detection pin, the charging state pin, and the first MOS switch circuit, and is used to control the charging process of the battery; The first MOS switch circuit is connected to the charging switch pin and is used to control the charging switch of the battery.

4. The floodlight circuit according to claim 2, wherein, The boost management module includes a drive control circuit and a dimming control circuit; The drive control circuit includes a second control chip and a second MOS switch connected to the gate terminal pin of the second control chip. The second control chip is used to control the conduction of the second MOS switch; One end of the dimming control circuit is connected to the dimming control pin of the second control chip, and the other end is connected to the dimming control pin of the main control chip, and is used to adjust the brightness of the light source through a PWM signal.

5. The floodlight circuit according to claim 2, characterized in that, There are four indication control pins, which are respectively a first indicator light control pin, a second indicator light control pin, a third indicator light control pin, and a fourth indicator light control pin; The indication module includes four indicator lights and current limiting resistors respectively connected to the corresponding indicator lights. The four indicator lights are respectively connected to the first indicator light control pin, the second indicator light control pin, the third indicator light control pin, and the fourth indicator light control pin.

6. The floodlight circuit according to claim 2, wherein, It further includes: A battery voltage monitoring module, which has three connection terminals. Its first connection terminal is connected to the battery voltage monitoring pin of the main control chip, the second connection terminal is connected to the output terminal of the battery, and the third connection terminal is connected to the voltage detection pin, and is used to monitor the voltage of the battery.

7. The floodlight circuit according to claim 2, wherein The debugging pin is used to program and debug the control chip.

8. The floodlight circuit according to claim 1, wherein, It further includes: A USB power management module, which is connected to the main control chip and the battery and is used to supply power externally.

9. The floodlight circuit according to claim 8, wherein The main control chip further includes a USB startup pin and a USB power switch pin. The USB power management module includes a third control chip and a switch control circuit. The third control chip is connected to the USB startup pin, and the switch control circuit is connected to the USB power switch pin.

10. The floodlight circuit according to claim 8, wherein, The switch module is also connected to the USB power management module and is used to start the USB power management module when the light source is turned off.

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