CN220629614U - Chargeable dimming LED lighting circuit - Google Patents
Chargeable dimming LED lighting circuit Download PDFInfo
- Publication number
- CN220629614U CN220629614U CN202321143161.7U CN202321143161U CN220629614U CN 220629614 U CN220629614 U CN 220629614U CN 202321143161 U CN202321143161 U CN 202321143161U CN 220629614 U CN220629614 U CN 220629614U
- Authority
- CN
- China
- Prior art keywords
- voltage
- dimming
- chip
- module
- output
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 35
- 238000005286 illumination Methods 0.000 claims abstract description 31
- 239000003990 capacitor Substances 0.000 claims description 51
- 230000010354 integration Effects 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 230000001105 regulatory effect Effects 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 239000011324 bead Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Abstract
The utility model provides a chargeable dimming LED lighting circuit, which relates to the technical field of lighting circuits, and aims to improve the integration level of the lighting circuit, optimize a power supply mode and realize a lighting circuit which is more suitable for small-range lighting, and comprises a charge and discharge protection module, a voltage stabilizing output module and an LED dimming lighting module; the charge and discharge protection module comprises a battery for supplying power to the illumination LED lamp; the input end of the charge-discharge protection module is used for being connected with a charging power supply, the output end of the charge-discharge protection module is connected to the input end of the voltage-stabilizing output module, the output end of the voltage-stabilizing output module is connected to the LED dimming illumination module, and the output end of the LED dimming illumination module is connected to a plurality of output protection branches and illumination LED lamps. The device has the advantages of high integration level, small pollution and good lighting effect.
Description
Technical Field
The utility model relates to the technical field of lighting circuits, in particular to a rechargeable dimming LED lighting circuit.
Background
In the fields of magnifying glass illumination, microscope illumination, toy illumination and the like, illumination equipment is required to be used for small-range illumination.
Most of the current devices for realizing illumination in a small range are powered by non-rechargeable button batteries, and the defects are obvious, for example, the batteries and other parts in the devices need to be replaced frequently, so that the replacement of the batteries is troublesome and tedious, and the illumination device has the problems of unstable illumination, environmental pollution of the batteries and the like. In addition, the current small-range lighting device has complicated circuit principle, and particularly, the problem that many electrical components are needed when the small-range lighting device is assembled and designed in order to avoid the situation that the rechargeable battery is replaced on the small-range lighting device, so that the PCB is easily enlarged, and the size of the lighting device is increased. Too large a lighting fixture for many small-scale lighting needs also creates problems with the inconvenience of installing and using the lighting fixture.
Therefore, there is a need for an improved lighting circuit to improve the integration level of the lighting circuit, optimize the power supply mode, and realize a lighting circuit more suitable for small-scale illumination.
Disclosure of Invention
The utility model aims to provide a rechargeable dimming LED lighting circuit, which aims to improve the integration level of the lighting circuit, optimize a power supply mode and realize a lighting circuit more suitable for small-range lighting.
The embodiment of the utility model is realized by the following technical scheme:
a chargeable dimming LED lighting circuit comprises a charge and discharge protection module, a voltage stabilizing output module and an LED dimming lighting module; the charge-discharge protection module comprises a battery for supplying power to the illumination LED lamp;
the input end of the charge-discharge protection module is used for being connected with a charging power supply, the output end of the charge-discharge protection module is connected to the input end of the voltage stabilizing output module, the output end of the voltage stabilizing output module is connected to the LED dimming illumination module, and the output end of the LED dimming illumination module is connected to a plurality of output protection branches and illumination LED lamps.
Preferably, the charge-discharge protection module comprises a plurality of resistors, a plurality of light emitting diodes, a plurality of capacitors, a battery and a protection chip;
one end of the first resistor is used for being connected with a 5V direct current source, the other end of the first resistor is connected with anodes of the first light emitting diode and the second light emitting diode, and cathodes of the first light emitting diode and the second light emitting diode are respectively connected with a charging indication end and a full power indication end of the protection chip;
the grounding end of the protection chip is grounded, the charging output end of the protection chip is connected to the anode of the battery, and the cathode of the battery is grounded; the voltage input end of the protection chip is connected with the charging power supply and the anode of the first capacitor, and the cathode of the first capacitor is grounded and connected with the cathode of the second capacitor; the anode of the second capacitor is connected to the anode of the battery; the first capacitor and the second capacitor are both polar capacitors;
the anode of the battery is connected to the input end of the voltage stabilizing output module.
Preferably, the protection chip is of the type PL5057.
Preferably, the first light emitting diode is a red light emitting diode, and the second light emitting diode is a green light emitting diode.
Preferably, the voltage stabilizing output module comprises a plurality of capacitors, inductors and a voltage reducing and stabilizing chip;
the voltage input end of the step-down voltage stabilizing chip is used as the input end of the voltage stabilizing output module; the grounding end of the voltage-reducing and voltage-stabilizing chip is grounded, and the enabling end is connected to the input end of the voltage-stabilizing output module; one end of the first inductor is connected to the voltage output end of the buck voltage stabilizing chip, and the other end of the first inductor is connected to the switch end of the buck voltage stabilizing chip;
one end of the third capacitor is connected to the voltage input end of the step-down voltage stabilizing chip, and the other end of the third capacitor is grounded; one end of the fourth capacitor is connected to the voltage output end of the voltage-reducing and voltage-stabilizing chip, the other end of the fourth capacitor is grounded, and the voltage output end of the voltage-reducing and voltage-stabilizing chip is used as the output end of the voltage-stabilizing output module.
Preferably, the model of the voltage-reducing and voltage-stabilizing chip is PW2057.
Preferably, the LED dimming lighting module comprises a dimming chip, a plurality of resistors, a plurality of diodes, a capacitor and a switch;
the voltage input end of the dimming chip is the input end of the LED dimming lighting module and is grounded through a fifth capacitor, the grounding end of the dimming chip is grounded, and the key end of the dimming chip is grounded through a switch;
the output end of the dimming chip is the output end of the LED dimming lighting module.
Preferably, the output protection branch comprises a resistor and a diode; the first end of the resistor is connected to the output end of the dimming chip, the second end of the resistor is connected to the anode of the diode, and the cathode of the diode is grounded.
Preferably, the number of the output protection branches is 4.
The technical scheme of the embodiment of the utility model has at least the following advantages and beneficial effects:
the utility model adopts a charging and power supplying mode for the small-range lighting device, so that the lighting effect is ensured, the pollution possibly caused by the consumption of the replaceable battery is avoided, and the utility model is more friendly to the environment;
the utility model performs charging protection and voltage stabilization, and improves the power supply safety of the whole lighting device;
the dimming mode of the small-range lighting equipment is simple, the operation is convenient, and the small-range lighting equipment can be suitable for more people;
the utility model has high integration level and small volume, and is convenient to be applied to various fields relying on illumination in a small range. The applicability is wide;
the utility model is easy to build, the price of the dependent electronic components is low and easy to obtain, and the utility model has high cost performance and is beneficial to popularization and implementation.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic circuit diagram of a rechargeable dimming LED lighting circuit according to an embodiment of the present utility model;
icon: r1-first resistor, R2-second resistor, R3-third resistor, R4-fourth resistor, R5-fifth resistor, R6-sixth resistor, D1-first diode, D2-second diode, D3-third diode, D4-fourth diode, VD 1-first light emitting diode, VD 2-second light emitting diode, C1-first capacitor, C2-second capacitor, C3-third capacitor, C4-fourth capacitor, C5-fifth capacitor, L1-first inductor, U1-charge and discharge protection module, U2-regulated output module, U3-LED dimming lighting module and S1-switch.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
In the description of the present utility model, it should also be noted that, unless explicitly stated and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Example 1
The embodiment provides a chargeable dimming LED lighting circuit, referring to fig. 1, which comprises a charge and discharge protection module U1, a voltage stabilizing output module U2 and an LED dimming lighting module U3; the charging and discharging protection module U1 comprises a battery for supplying power to the illumination LED lamp;
the input end of the charge-discharge protection module U1 is used for being connected with a charging power supply, the output end of the charge-discharge protection module U1 is connected to the input end of the voltage stabilizing output module U2, the output end of the voltage stabilizing output module U2 is connected to the LED dimming illumination module U3, and the output end of the LED dimming illumination module U3 is connected to a plurality of output protection branches and illumination LED lamps.
The working principle of the utility model is as follows:
the rechargeable battery is provided with the illumination LED lamp, and the charging voltage charges the battery under the protection action of the charging and discharging protection module U1, so that the rechargeable battery is convenient and safe, and the possible environmental pollution caused by the consumption of the non-rechargeable battery can be avoided; after the voltage of the battery in the charge and discharge protection module U1 is regulated by the voltage regulation output module U2, the power supply for the illumination LED lamp is realized by the dimming function of the LED dimming illumination module U3. The output end of the LED dimming lighting module U3 is further provided with an output protection branch circuit with a protection function, so that the safety of the whole lighting circuit is further improved.
Example 2
The embodiment is based on the technical solution of embodiment 1, and referring to fig. 1, a charge-discharge protection module U1 is further described.
As a preferred solution of this embodiment, the charge-discharge protection module U1 includes a plurality of resistors, a plurality of light emitting diodes, a plurality of capacitors, a battery and a protection chip;
one end of the first resistor R1 is used for being connected with a 5V direct current source, the other end of the first resistor R1 is connected with anodes of the first light emitting diode VD1 and the second light emitting diode VD2, and cathodes of the first light emitting diode VD1 and the second light emitting diode VD2 are respectively connected to a charging indication end and a full power indication end of the protection chip;
the grounding end of the protection chip is grounded, the charging output end of the protection chip is connected to the anode of the battery, and the cathode of the battery is grounded; the voltage input end of the protection chip is connected with the charging power supply and the anode of the first capacitor C1, and the cathode of the first capacitor C1 is grounded and connected with the cathode of the second capacitor C2; the anode of the second capacitor C2 is connected to the anode of the battery; the first capacitor C1 and the second capacitor C2 are both polar capacitors;
the anode of the battery is connected to the input terminal of the regulated output module U2.
In this embodiment, the protection chip is PL5057.
Further, the first light emitting diode VD1 selects a red light emitting diode, and the second light emitting diode VD2 adopts a green light emitting diode.
In this embodiment, the battery is charged under the protection of the protection chip, and the direct current source connected to the voltage input end of the protection chip is a charging power source, and can be charged by adopting a USB charging port with 5V specification. The adopted protection chip PL5057 is a highly integrated charge protection integrated circuit chip and can be used for lithium ion battery charge management. PL5057 has overcurrent, overvoltage, undervoltage and over-temperature protection functions, and can effectively improve the safety performance of the lithium battery pack and prolong the service life of the lithium battery pack.
On the other hand, the charge indication terminal and the full power indication terminal connected to the protection chip are respectively connected to the first light emitting diode VD1 and the second light emitting diode VD2, which may play a role of charge indication. The first light emitting diode VD1 and the second light emitting diode VD2 may show whether the charging state is being charged or is full with a higher degree of distinction by using different colors. That is, a red light on indicates that it is charging and a green light on indicates that it is fully charged.
Example 3
The embodiment is based on the technical solution of embodiment 1, and referring to fig. 1, a voltage stabilizing output module U2 is further described.
As a preferable scheme, the voltage stabilizing output module U2 includes a plurality of capacitors, inductors and a voltage reducing and stabilizing chip;
the voltage input end of the step-down voltage stabilizing chip is used as the input end of the voltage stabilizing output module U2; the grounding end of the voltage-reducing and voltage-stabilizing chip is grounded, and the enabling end is connected to the input end of the voltage-stabilizing output module U2; one end of the first inductor L1 is connected to the voltage output end of the step-down voltage stabilizing chip, and the other end of the first inductor L1 is connected to the switch S1 end of the step-down voltage stabilizing chip;
one end of the third capacitor C3 is connected to the voltage input end of the step-down voltage stabilizing chip, and the other end of the third capacitor C is grounded; one end of the fourth capacitor C4 is connected to the voltage output end of the buck voltage stabilizing chip, and the other end of the fourth capacitor C4 is grounded, where the voltage output end of the buck voltage stabilizing chip is used as the output end of the voltage stabilizing output module U2.
Further, the model of the voltage-reducing and voltage-stabilizing chip is PW2057.
The voltage-reducing and voltage-stabilizing chip PW2057 adopted in the embodiment is a high-efficiency voltage-reducing converter chip, is mainly used for capacitor voltage-reducing and voltage-stabilizing, has the characteristics of high conversion efficiency, high precision, low leakage current and the like, and also has a duty ratio of 100%. The light efficiency stability of the subsequent illumination LED lamp is guaranteed, and the service life is prolonged.
Example 4
The embodiment is based on the technical solution of embodiment 1, and referring to fig. 1, the LED dimming lighting module U3 is further described.
In this embodiment, preferably, the LED dimming lighting module U3 includes a dimming chip, a plurality of resistors, a plurality of diodes, a capacitor, and a switch S1;
the voltage input end of the dimming chip is the input end of the LED dimming lighting module U3 and is grounded through a fifth capacitor C5, the grounding end of the dimming chip is grounded, and the key end of the dimming chip is grounded through a switch S1;
the output end of the dimming chip is the output end of the LED dimming lighting module U3.
The embodiment can realize two-gear dimming, namely 100% dimming and 50% dimming. Furthermore, the LED lamp beads with low power consumption and high luminous efficiency are used as the lamp beads of the illumination LED lamp, and the service life is prolonged. Particularly, the chip of the embodiment adopts SOP packaging, has small volume, small quiescent current and few peripheral components, and the chip adopted in the embodiment 2 also has the advantage, thereby enhancing the integration level of the whole lighting circuit.
Furthermore, in order to protect the output of the dimming related circuit, the output protection branch comprises a resistor and a diode; the first end of the resistor is connected to the output end of the dimming chip, the second end of the resistor is connected to the anode of the diode, and the cathode of the diode is grounded.
In addition, the number of the output protection branches is 4. In fig. 1, a first diode D1 is connected in series with a third resistor R3, a second diode D2 is connected in series with a fourth resistor R4, a third diode D3 is connected in series with a fifth resistor R5, and a fourth diode D4 is connected in series with a sixth resistor R6.
The series resistor and diode ground may act to protect and limit the voltage. The resistor can limit the output current, so that the chip and other circuits are prevented from being damaged due to overlarge output current, the diode can play a role in protection, and when a load is short-circuited or reversed, the diode can limit the output voltage within a certain range, so that the chip is prevented from being damaged.
The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (6)
1. A rechargeable dimming LED lighting circuit, characterized by: the LED dimming lighting device comprises a charge and discharge protection module, a voltage stabilizing output module and an LED dimming lighting module; the charge-discharge protection module comprises a battery for supplying power to the illumination LED lamp;
the input end of the charge-discharge protection module is used for being connected with a charge power supply, the output end of the charge-discharge protection module is connected to the input end of the voltage-stabilizing output module, the output end of the voltage-stabilizing output module is connected to the LED dimming illumination module, and the output end of the LED dimming illumination module is connected to a plurality of output protection branches and illumination LED lamps;
the voltage stabilizing output module comprises a plurality of capacitors, inductors and a voltage reducing and stabilizing chip;
the voltage input end of the step-down voltage stabilizing chip is used as the input end of the voltage stabilizing output module; the grounding end of the voltage-reducing and voltage-stabilizing chip is grounded, and the enabling end is connected to the input end of the voltage-stabilizing output module; one end of the first inductor is connected to the voltage output end of the buck voltage stabilizing chip, and the other end of the first inductor is connected to the switch end of the buck voltage stabilizing chip;
one end of the third capacitor is connected to the voltage input end of the step-down voltage stabilizing chip, and the other end of the third capacitor is grounded;
one end of the fourth capacitor is connected to the voltage output end of the voltage-reducing and voltage-stabilizing chip, the other end of the fourth capacitor is grounded, and the voltage output end of the voltage-reducing and voltage-stabilizing chip is used as the output end of the voltage-stabilizing output module;
the LED dimming lighting module comprises a dimming chip, a plurality of resistors, a plurality of diodes, a capacitor and a switch;
the voltage input end of the dimming chip is the input end of the LED dimming lighting module and is grounded through a fifth capacitor, the grounding end of the dimming chip is grounded, and the key end of the dimming chip is grounded through a switch;
the output end of the dimming chip is the output end of the LED dimming lighting module;
the output protection branch circuit comprises a resistor and a diode; the first end of the resistor is connected to the output end of the dimming chip, the second end of the resistor is connected to the anode of the diode, and the cathode of the diode is grounded.
2. A rechargeable dimming LED lighting circuit as claimed in claim 1, wherein: the charge-discharge protection module comprises a plurality of resistors, a plurality of light emitting diodes, a plurality of capacitors, a battery and a protection chip;
one end of the first resistor is used for being connected with a 5V direct current source, the other end of the first resistor is connected with anodes of the first light emitting diode and the second light emitting diode, and cathodes of the first light emitting diode and the second light emitting diode are respectively connected with a charging indication end and a full power indication end of the protection chip;
the grounding end of the protection chip is grounded, the charging output end of the protection chip is connected to the anode of the battery, and the cathode of the battery is grounded; the voltage input end of the protection chip is connected with the charging power supply and the anode of the first capacitor, and the cathode of the first capacitor is grounded and connected with the cathode of the second capacitor; the anode of the second capacitor is connected to the anode of the battery; the first capacitor and the second capacitor are both polar capacitors;
the anode of the battery is connected to the input end of the voltage stabilizing output module.
3. A rechargeable dimming LED lighting circuit as claimed in claim 2, wherein: the model of the protection chip is PL5057.
4. A rechargeable dimming LED lighting circuit as claimed in claim 3, wherein: the first light-emitting diode is a red light-emitting diode, and the second light-emitting diode is a green light-emitting diode.
5. A rechargeable dimming LED lighting circuit as claimed in claim 1, wherein: the model of the voltage-reducing and voltage-stabilizing chip is PW2057.
6. A rechargeable dimming LED lighting circuit as claimed in claim 1, wherein: the number of the output protection branches is 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321143161.7U CN220629614U (en) | 2023-05-12 | 2023-05-12 | Chargeable dimming LED lighting circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321143161.7U CN220629614U (en) | 2023-05-12 | 2023-05-12 | Chargeable dimming LED lighting circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220629614U true CN220629614U (en) | 2024-03-19 |
Family
ID=90232134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321143161.7U Active CN220629614U (en) | 2023-05-12 | 2023-05-12 | Chargeable dimming LED lighting circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220629614U (en) |
-
2023
- 2023-05-12 CN CN202321143161.7U patent/CN220629614U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201127137Y (en) | High-power LED drive circuit | |
| CN101026917A (en) | Solar LED lamp circuit | |
| CN102421221A (en) | Emergency lighting system based on LED (Light-Emitting Diode) assembled lamp | |
| CN104427698A (en) | Control circuit | |
| CN220629614U (en) | Chargeable dimming LED lighting circuit | |
| CN219124395U (en) | Anti-surge and non-afterglow LED driving circuit, luminous component and LED lamp | |
| CN202333942U (en) | Charging circuit | |
| CN201116683Y (en) | Emergency light | |
| CN109005619B (en) | LED driving chip with charging and discharging management function | |
| CN207399578U (en) | A kind of Portable LED lamp driving power | |
| CN107543094A (en) | A kind of LED lamp with function of emergency illumination | |
| CN201084799Y (en) | A charger used for simultaneous charging of a plurality of mobile phones | |
| CN202253303U (en) | Constant current control all-in-one machine and photovoltaic street lamp lighting system with same | |
| CN113365390B (en) | Rechargeable desk lamp | |
| CN2884781Y (en) | Solar LED lamp circuit | |
| CN220647944U (en) | Camping mosquito-repellent lamp | |
| CN212910140U (en) | LED garden lamp control circuit with energy storage function | |
| CN210957842U (en) | Battery charging circuit and portable lamp | |
| CN220156251U (en) | Direct current power supply boost current-limiting conversion circuit | |
| CN220067744U (en) | LED lamp charging circuit | |
| CN214070205U (en) | LED lamp power supply circuit and LED lighting system | |
| CN210670668U (en) | Low standby power consumption's intelligent lamp and intelligent lamp body thereof | |
| CN217603981U (en) | Multifunctional emergency bulb lamp | |
| CN216929673U (en) | Solar low-illumination power generation current concentration threshold control charging circuit | |
| CN104797031B (en) | LED voltage increase and current constant driving circuits |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |