CN218277233U - Sight lamp control circuit - Google Patents
Sight lamp control circuit Download PDFInfo
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- CN218277233U CN218277233U CN202221658562.1U CN202221658562U CN218277233U CN 218277233 U CN218277233 U CN 218277233U CN 202221658562 U CN202221658562 U CN 202221658562U CN 218277233 U CN218277233 U CN 218277233U
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Abstract
The utility model provides a sight lamp control circuit, which comprises a charging module, a charging detection module for detecting the voltage input value of the charging module, an MCU control module, a rechargeable battery, an automatic power-off protection module for detecting the voltage value of the rechargeable battery, an automatic voltage switching module, an LED driving module and an MCU power supply module; the MCU control module is electrically connected with an enabling pin of the charging module, the charging detection module, the automatic power-off protection module, the LED driving module and the MCU power supply module; the voltage input end of the charging module is electrically connected with the charging detection module and the automatic voltage switching module; the voltage automatic switching module is electrically connected with the rechargeable battery, the automatic power-off protection module, the LED driving module and the MCU power supply module. The utility model provides a sight lamp control circuit, automatic power-off protection module can automated inspection rechargeable battery's magnitude of voltage, when magnitude of voltage is less than the predetermined value, starts the dormant mode, stops to load LED power supply to can prevent effectively that the battery from putting excessively.
Description
Technical Field
The utility model relates to a lamps and lanterns circuit technical field especially relates to a sight lamp control circuit.
Background
The scene lamp is not a traditional lighting lamp, but an intelligent lighting device, adopts an innovative LED light source technology, breaks through the single-point lighting tradition of the decorative lighting, and allows the lamplight atmosphere to be freely changed due to the creation of multi-point lighting. The appearance frequency of scene lamps in people's lives is also increasing.
For the scene light, what bothers users at present is mainly how to effectively protect the battery and prolong the service life of the scene light.
Therefore, it is desirable to provide a scene light control circuit to solve the above technical problems.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the main technical problem who solves provides a sight lamp control circuit, and auto-power-off protection module can automated inspection rechargeable battery's magnitude of voltage, when the magnitude of voltage is less than the predetermined value, starts dormant mode, stops to load LED power supply to can prevent effectively that the battery from putting excessively.
In order to solve the above technical problem, a technical solution adopted by the present invention is to provide a scene lamp control circuit, which includes a charging module 1, a charging detection module 2 for detecting a voltage input value of the charging module 1, an MCU control module 3, a rechargeable battery 4, an automatic power-off protection module 5 for detecting a voltage value of the rechargeable battery 4, an automatic voltage switching module 6, an LED driving module 7, and an MCU power supply module 8; the MCU control module 3 is electrically connected with an enabling pin of the charging module 1, the charging detection module 2, the automatic power-off protection module 5, the LED driving module 7 and the MCU power supply module 8; the voltage input end of the charging module 1 is electrically connected with the charging detection module 2 and the automatic voltage switching module 6; the voltage automatic switching module 6 is electrically connected with the rechargeable battery 4, the automatic power-off protection module 5, the LED driving module 7 and the MCU power supply module 8.
In one embodiment, the scene lamp control circuit further comprises an NTC temperature detection module 9, wherein the input end of the NTC temperature detection module 9 is electrically connected with the rechargeable battery 4, and the output end is electrically connected with the MCU control module 3.
In an embodiment, the charging module 1 comprises a red LED for indicating the charging status and a green LED for indicating the full charge status.
In an embodiment, the MCU power supply module 8 includes a 14-pin control chip U3, and the control chip U3 has a programming interface IPS.
In an embodiment, the automatic voltage switching module 6 includes a third semiconductor diode D3, a fourth NPN type transistor Q4, a fifth P-channel MOS transistor Q5, a sixth P-channel MOS transistor Q6, a seventh NPN type transistor Q7, an eleventh resistor R11, a twelfth resistor R12, a fifteenth resistor R15, a sixteenth resistor R16, a seventeenth resistor R17, and an eighteenth resistor R18;
the positive electrode of the charging module 1 is connected with the anode of a third semiconductor diode D3 and is connected with the base electrode of a fourth NPN-type triode Q4 through an eleventh resistor R11, a fifteenth resistor R15 is connected between the base electrode and the emitter electrode of the fourth NPN-type triode Q4, the emitter electrodes of the fourth NPN-type triode Q4 and the seventh NPN-type triode Q7 are grounded, the collector electrode of the fourth NPN-type triode Q4 and the base electrode of the seventh NPN-type triode Q7 are connected with the gate electrode of a sixth P-channel MOS transistor Q6 through a sixteenth resistor R16, and the collector electrode of the seventh NPN-type triode Q7 is connected with the gate electrode of the sixth P-channel MOS transistor Q6 through a seventeenth resistor R17;
the drain of the fifth P-channel MOS transistor Q5 is connected to the voltage output terminal of the rechargeable battery 4, the gate thereof is connected to the gate of the sixth P-channel MOS transistor Q6 through an eighteenth resistor R18, the sources of the fifth P-channel MOS transistor Q5 and the sixth P-channel MOS transistor Q6 are connected to the gate of the sixth P-channel MOS transistor Q6 through a twelfth resistor R12, and the drain of the sixth P-channel MOS transistor Q6 is connected to the cathode of the third semiconductor diode D3, the LED driving module 7 and the MCU power supply module 8.
In one embodiment, the LED driving module 7 includes a white light control unit 71 and a yellow light control unit 72.
The utility model has the advantages that:
(1) The voltage value of the rechargeable battery can be automatically detected through the set automatic power-off protection module, and when the voltage value is lower than a preset value, the sleep mode is started to stop supplying power to the load LED, so that the battery can be prevented from being over-discharged, and the battery is effectively protected.
(2) The NTC temperature detection module further sets up, in the in-process of carrying out the heavy discharge to rechargeable battery, closes in good time to charge the module and enables the pin output or stops to LED drive module output control signal to effectively protect rechargeable battery, extension battery life.
Drawings
Fig. 1 is a schematic block diagram of a scene light control circuit of the present invention;
fig. 2 is a schematic circuit structure diagram of the charging module 1 shown in fig. 1;
fig. 3 is a schematic diagram of the circuit configuration of the rechargeable battery 4 shown in fig. 1;
fig. 4 is a schematic circuit diagram of the automatic power-off protection module 5 shown in fig. 1;
fig. 5 is a schematic circuit diagram of the automatic voltage switching module 6 shown in fig. 1;
fig. 6 is a schematic circuit structure diagram of the charging detection module 2, the MCU control module 3, the auto-power-off protection module 5, and the MCU power supply module 8 shown in fig. 1.
Detailed Description
The technical solution of the present invention will be described in detail with reference to the drawings.
Referring to fig. 1, the scene light control circuit of the present embodiment includes a charging module 1, a charging detection module 2 for detecting a voltage input value of the charging module 1, an MCU control module 3, a rechargeable battery 4, an auto-power-off protection module 5 for detecting a voltage value of the rechargeable battery 4, an automatic voltage switching module 6, an LED driving module 7, and an MCU power supply module 8; the MCU control module 3 is electrically connected with an enabling pin of the charging module 1, the charging detection module 2, the automatic power-off protection module 5, the LED driving module 7 and the MCU power supply module 8; the voltage input end of the charging module 1 is electrically connected with the charging detection module 2 and the automatic voltage switching module 6; the voltage automatic switching module 6 is electrically connected with the rechargeable battery 4, the automatic power-off protection module 5, the LED driving module 7 and the MCU power supply module 8.
The utility model discloses in, can the automatic selection through voltage automatic switch-over module 6 charge module 1 power supply or rechargeable battery 4 power supply. And the voltage value of the rechargeable battery 4 is monitored in real time through the automatic power-off protection module 5, so that the battery is effectively protected. For example, when the temperature of the rechargeable battery 4 is lower than-10 ℃ or higher than 65 ℃ in the discharging process of the rechargeable battery 4, the output of the PWM signal to the LED driving module 7 is stopped, so that the service life of the lithium battery is prolonged; for another example, when the voltage of the rechargeable battery 4 is lower than 2.75V, the rechargeable battery automatically enters the sleep mode, the load LED lamp is turned off, no response is caused by touch, and meanwhile, the output of the PWM signal to the LED driving module 7 is stopped, and when the voltage of the rechargeable battery 4 is higher than 2.75V, the product automatically recovers to be used normally, so that the rechargeable battery 4 is prevented from being over-discharged.
In one embodiment, as shown in fig. 3 and fig. 6, the scenic light control circuit further includes an NTC temperature detection module 9, an input terminal of the NTC temperature detection module 9 is electrically connected to the rechargeable battery 4, and an output terminal of the NTC temperature detection module 9 is electrically connected to the MCU control module 3. Through the judgment of the NTC signal, when the temperature of the rechargeable battery 4 is lower than 0 ℃ or higher than 45 ℃ in the charging process, the enabling pin EN of the charging module 1 is closed, the charging is stopped, and the service life of the lithium battery is prolonged.
As further shown in fig. 2, in one embodiment, the charging module 1 includes a red LED for indicating a charging status and a green LED for indicating a full charge status. In fig. 2, the charging management chip U1 is a lithium battery charging management chip, and supports EN enable control, and the charging management chip U1 normally operates when an enable pin EN is at a high level, and stops operating when the enable pin EN is at a low level. And the charging module 1 is connected with a universal charging head on the market through a TYPE-C port for charging, and is connected with a fifth resistor R5 and a sixth resistor R6 for compatible quick charging.
As further shown in fig. 6, in an embodiment, the MCU power supply module 8 includes a 14-pin control chip U3, and the control chip U3 has a programming port IPS.
In an embodiment, as shown in fig. 4, the automatic voltage switching module 6 includes a third semiconductor diode D3, a fourth NPN transistor Q4, a fifth P-channel MOS transistor Q5, a sixth P-channel MOS transistor Q6, a seventh NPN transistor Q7, an eleventh resistor R11, a twelfth resistor R12, a fifteenth resistor R15, a sixteenth resistor R16, a seventeenth resistor R17, and an eighteenth resistor R18;
the positive electrode of the charging module 1 is connected with the anode of a third semiconductor diode D3 and is connected with the base electrode of a fourth NPN-type triode Q4 through an eleventh resistor R11, a fifteenth resistor R15 is connected between the base electrode and the emitter electrode of the fourth NPN-type triode Q4, the emitter electrodes of the fourth NPN-type triode Q4 and the seventh NPN-type triode Q7 are grounded, the collector electrode of the fourth NPN-type triode Q4 and the base electrode of the seventh NPN-type triode Q7 are connected with the gate electrode of a sixth P-channel MOS transistor Q6 through a sixteenth resistor R16, and the collector electrode of the seventh NPN-type triode Q7 is connected with the gate electrode of the sixth P-channel MOS transistor Q6 through a seventeenth resistor R17;
the drain of the fifth P-channel MOS transistor Q5 is connected to the voltage output terminal of the rechargeable battery 4, the gate thereof is connected to the gate of the sixth P-channel MOS transistor Q6 through an eighteenth resistor R18, the sources of the fifth P-channel MOS transistor Q5 and the sixth P-channel MOS transistor Q6 are connected to the gate of the sixth P-channel MOS transistor Q6 through a twelfth resistor R12, and the drain of the sixth P-channel MOS transistor Q6 is connected to the cathode of the third semiconductor diode D3, the LED driving module 7 and the MCU power supply module 8.
When the TYPE-C port of the charging module 1 is connected with a general charging head on the market for charging, the +5V power supplies power to a related control circuit through the third semiconductor diode D3, meanwhile, the fourth NPN TYPE triode Q4 is conducted, the seventh NPN TYPE triode Q7 is cut off, the grid levels of the fifth P channel MOS tube Q5 and the sixth P channel MOS tube Q6 are changed to be high and then cut off (at the moment, the power supply of the charging battery 4 is cut off), and meanwhile, the +5V is prevented from directly charging the charging battery 4 (the battery is prevented from being charged and exploded) due to the cut-off of the fifth P channel MOS tube Q5;
when the TYPE-C input is disconnected, the fourth NPN TYPE triode Q4 is cut off, the seventh NPN TYPE triode Q7 is conducted, the grid level of the sixth P channel MOS tube Q6 is pulled down following the fifth P channel MOS tube Q5 and is also conducted, and at the moment, the charging battery 4 is automatically switched to supply power to the related control circuit.
As further shown in fig. 5, in an embodiment, the LED driving module 7 includes a white light control unit 71 and a yellow light control unit 72.
The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures made by the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the same principle as the protection scope of the present invention.
Claims (6)
1. A sight light control circuit, its characterized in that: the device comprises a charging detection module (2) for detecting a voltage input value of a charging module (1), an MCU control module (3), a rechargeable battery (4), an automatic power-off protection module (5) for detecting a voltage value of the rechargeable battery (4), an automatic voltage switching module (6), an LED driving module (7) and an MCU power supply module (8); the MCU control module (3) is electrically connected with an enabling pin of the charging module (1), the charging detection module (2), the automatic power-off protection module (5), the LED driving module (7) and the MCU power supply module (8); the voltage input end of the charging module (1) is electrically connected with the charging detection module (2) and the automatic voltage switching module (6); the automatic voltage switching module (6) is electrically connected with the rechargeable battery (4), the automatic power-off protection module (5), the LED driving module (7) and the MCU power supply module (8).
2. The mood light control circuit of claim 1, wherein: the scene lamp control circuit further comprises an NTC temperature detection module (9), wherein the input end of the NTC temperature detection module (9) is electrically connected with the rechargeable battery (4), and the output end of the NTC temperature detection module is electrically connected with the MCU control module (3).
3. The mood light control circuit of claim 1, wherein: the charging module (1) comprises a red LED for indicating a charging status and a green LED for indicating a full charge status.
4. A scenic light control circuit as claimed in claim 3, wherein: the MCU power supply module (8) comprises a 14-pin control chip (U3), and the control chip (U3) is provided with an in-plane switching (IPS) interface.
5. A scenic light control circuit according to any of claims 1-4, wherein: the voltage automatic switching module (6) comprises a third semiconductor diode (D3), a fourth NPN type triode (Q4), a fifth P channel MOS tube (Q5), a sixth P channel MOS tube (Q6), a seventh NPN type triode (Q7), an eleventh resistor (R11), a twelfth resistor (R12), a fifteenth resistor (R15), a sixteenth resistor (R16), a seventeenth resistor (R17) and an eighteenth resistor (R18);
the positive electrode of the charging module (1) is connected with the anode of a third semiconductor diode (D3), and is connected with the base electrode of a fourth NPN type triode (Q4) through an eleventh resistor (R11), a fifteenth resistor (R15) is connected between the base electrode and the emitting electrode of the fourth NPN type triode (Q4), the emitting electrodes of the fourth NPN type triode (Q4) and the seventh NPN type triode (Q7) are grounded, the collector electrode of the fourth NPN type triode (Q4) and the base electrode of the seventh NPN type triode (Q7) are connected with the grid electrode of a sixth P channel MOS tube (Q6) through a sixteenth resistor (R16), and the collector electrode of the seventh NPN type triode (Q7) is connected with the grid electrode of the sixth P channel MOS tube (Q6) through a seventeenth resistor (R17);
the drain electrode of the fifth P-channel MOS tube (Q5) is connected with the voltage output end of the rechargeable battery (4), the grid electrode of the fifth P-channel MOS tube is connected with the grid electrode of the sixth P-channel MOS tube (Q6) through an eighteenth resistor (R18), the source electrodes of the fifth P-channel MOS tube (Q5) and the sixth P-channel MOS tube (Q6) are connected with the grid electrode of the sixth P-channel MOS tube (Q6) through a twelfth resistor (R12), and the drain electrode of the sixth P-channel MOS tube (Q6) is connected with the cathode of the third semiconductor diode (D3), the LED driving module (7) and the MCU power supply module (8).
6. The mood light control circuit of claim 5, wherein: the LED driving module (7) comprises a white light control unit (71) and a yellow light control unit (72).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221658562.1U CN218277233U (en) | 2022-06-29 | 2022-06-29 | Sight lamp control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221658562.1U CN218277233U (en) | 2022-06-29 | 2022-06-29 | Sight lamp control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218277233U true CN218277233U (en) | 2023-01-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221658562.1U Active CN218277233U (en) | 2022-06-29 | 2022-06-29 | Sight lamp control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218277233U (en) |
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2022
- 2022-06-29 CN CN202221658562.1U patent/CN218277233U/en active Active
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