CN204681638U - A kind of LED bulb intelligent recharge and discharge circuit - Google Patents
A kind of LED bulb intelligent recharge and discharge circuit Download PDFInfo
- Publication number
- CN204681638U CN204681638U CN201520315131.9U CN201520315131U CN204681638U CN 204681638 U CN204681638 U CN 204681638U CN 201520315131 U CN201520315131 U CN 201520315131U CN 204681638 U CN204681638 U CN 204681638U
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- China
- Prior art keywords
- circuit
- lithium battery
- led
- battery charge
- discharge
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- 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.)
- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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- Led Devices (AREA)
Abstract
The utility model relates to a kind of LED bulb intelligent recharge and discharge circuit, and circuit comprises 220V rectification circuit, LED drive circuit, LED illumination circuit, power supply switch circuit and lithium battery charge and discharge protective circuit.220V rectification circuit is connected with LED drive circuit, and the output of LED drive circuit is divided into two-way, and LED illumination circuit is received on a road, and lithium battery charge and discharge protective circuit is received on another road, and lithium battery charge and discharge protective circuit is connected to LED illumination circuit; Power supply switch circuit is connected to lithium battery charge and discharge protective circuit and 220V rectification circuit, switches the power supply of LED illumination circuit.When the utility model can be implemented in power failure, the effect of bulb still bright light, reaches the emergent object that has a power failure, has a good application prospect.
Description
Technical field
The utility model relates to a kind of LED bulb intelligent recharge and discharge circuit.
Background technology
LED bulb as a kind of novel illuminating product, compared with old-fashioned incandescent lamp, fluorescent lamp, due to its have that brightness is large, energy consumption is low, many-sided advantage such as healthy, environmental protection, current in the various occasion of indoor and outdoor apply more and more widely.At present, LED bulb on the market generally all only possesses common illumination functions, and intelligence degree is not high, does not have the function of power-cut emergency lighting.Along with Chinese society expanding economy; the consumption of the energy is constantly increased; a lot of rural area even area, urban often can run into the transient-power failure phenomenon because energy scarcity, power shortage cause; and the equipment such as traditional fire emergency lamp due to exist equipment volume large, use the problems such as complex steps, and be not suitable for promoting the use of in domestic consumer in large area.Integrated intelligent charging and discharging lithium battery function in LED bulb, the power failure enabling current LED bulb be applicable to family is met an urgent need, and becomes a kind of urgent demand.
Utility model content
The purpose of this utility model is to provide a kind of LED bulb intelligent recharge and discharge circuit.This circuit has the function that intelligence switches LED bulb power supply: when civil power 220V normal power supply, by civil power 220V for LED bulb provides power supply; When civil power 220V has a power failure, can automatically switch for by built-in lithium battery for LED bulb provides power supply, whole process need not any manual intervention, and intelligence degree is high, can meet the demand that family's temporary interruption is emergent easily.
The LED bulb intelligent recharge and discharge circuit that the utility model proposes comprises 220V rectification circuit, LED drive circuit, LED illumination circuit, power supply switch circuit and lithium battery charge and discharge protective circuit; 220V rectification circuit is connected with LED drive circuit; the output of LED drive circuit is divided into two-way; LED illumination circuit is received on one tunnel; lithium battery charge and discharge protective circuit is received on another road, and lithium battery charge and discharge protective circuit is connected to LED illumination circuit.Power supply switch circuit is connected to lithium battery charge and discharge protective circuit and 220V rectification circuit, switches the power supply of LED illumination circuit.
When civil power normal power supply; passage between lithium battery charge and discharge protective circuit and LED illumination circuit disconnects by power supply switch circuit automatically; by the electrical source exchange of LED illumination circuit for be powered by LED drive circuit; now; 220V voltage is by becoming direct current after rectifier circuit rectifies; again by after LED drive circuit transformation and voltage stabilizing; the voltage and current of stable output is used for driving LED lighting circuit; LED illumination circuit is composed in parallel by multiple LED lamp bead, can realize bulb normal luminous under rated current drives.Meanwhile, another road of LED drive circuit output to lithium battery charge and discharge protective circuit for give lithium cell charging.When 220V mains failure; passage between lithium battery charge and discharge protective circuit and LED illumination circuit can be connected by power supply switch circuit automatically; make the electrical source exchange of LED illumination circuit for by lithium battery power supply, the effect of bulb still bright light when can be implemented in power failure.Lithium battery charge and discharge protective circuit has the function of intellectual monitoring lithium battery voltage: when lithium battery is pressed between 2.3V and 4.2V, automatically connect charging and discharging circuit, and now lithium battery can normally discharge and recharge; When lithium battery voltage is less than 2.3V or is greater than 4.2V, automatically cut off charging and discharging circuit, cause damage to avoid lithium battery due to overcharge or overdischarge.
When lithium battery charge and discharge protective circuit voltage is between 2.3V and 4.2V, automatically connect charge circuit, the normal discharge and recharge of lithium battery; When lithium battery voltage is less than 2.3V or is greater than 4.2V, automatically cut off charging and discharging circuit.
The utility model adds the function of charging and discharging lithium battery and double-power intelligent switching on the power circuit of traditional common LED bulb, whole circuit volume is little, lightweight, low in energy consumption, can be embedded into easily among various types of LED lamp, reach the emergent object that has a power failure, have a good application prospect.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is circuit theory diagrams of the present utility model.
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Embodiment
As shown in Figure 1, LED bulb intelligent recharge and discharge circuit part comprises 220V rectification circuit 1, LED drive circuit 2, LED illumination circuit 3, power supply switch circuit 4, lithium battery charge and discharge protective circuit 5.220V rectification circuit 1 is for being converted to direct current by 220V alternating voltage; LED drive circuit 2 is powered for giving LED illumination circuit 3 and lithium battery charge and discharge protective circuit 5; the intelligence that power supply switch circuit 4 can realize 220V mains supply and lithium battery power supply switches; lithium battery charge and discharge protective circuit 5 has the function of intellectual monitoring lithium battery voltage, can prevent lithium battery from causing damage due to overcharge or overdischarge.
Introduce connected mode and the effect of each several part circuit in circuit diagram 2 below: U1 is rectifier bridge, for carrying out rectification to external 220V alternating voltage P1.U2 is LED drive IC, jointly forms LED drive circuit with transformer U3 and related peripheral element.Transformer U3 divides two-way to export, and LED illumination circuit P2 is exported on a road, and lithium battery P3 is exported on another road.Lithium battery voltage chip monitoring U4 and metal-oxide-semiconductor switch chip U5 forms lithium battery charge and discharge protective circuit, realizes the monitoring to lithium battery P3 overdischarge and overcharge, and intelligence can cut off charging and discharging circuit.Triode Q1, Q3 and resistance R2, R3, R6, R8 and 220V zero live wire loop form power supply switch circuit: when 220V normal power supply, under the effect of line voltage, triode Q1, Q3 end, cut off lithium battery P3 to the path of LED illumination circuit P2, now lithium battery P3 is inoperative, is powered to LED illumination circuit P2 by 220V mains supply P1; When 220V mains failure, triode Q1, Q3 conducting, connects lithium battery P3 to the path of LED illumination circuit P2, is namely powered to LED illumination circuit P2 by lithium battery P3.
Claims (2)
1. a LED bulb intelligent recharge and discharge circuit, it is characterized in that: circuit comprises 220V rectification circuit, LED drive circuit, LED illumination circuit, power supply switch circuit and lithium battery charge and discharge protective circuit, 220V rectification circuit is connected with LED drive circuit, the output of LED drive circuit is divided into two-way, LED illumination circuit is received on one tunnel, lithium battery charge and discharge protective circuit is received on another road, and lithium battery charge and discharge protective circuit is connected to LED illumination circuit; Power supply switch circuit is connected to lithium battery charge and discharge protective circuit and 220V rectification circuit, switches the power supply of LED illumination circuit.
2. LED bulb intelligent recharge and discharge circuit according to claim 1, is characterized in that: when described lithium battery charge and discharge protective circuit voltage is between 2.3V and 4.2V, automatically connect charge circuit, the normal discharge and recharge of lithium battery; When lithium battery voltage is less than 2.3V or is greater than 4.2V, automatically cut off charging and discharging circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520315131.9U CN204681638U (en) | 2015-05-17 | 2015-05-17 | A kind of LED bulb intelligent recharge and discharge circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520315131.9U CN204681638U (en) | 2015-05-17 | 2015-05-17 | A kind of LED bulb intelligent recharge and discharge circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204681638U true CN204681638U (en) | 2015-09-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520315131.9U Expired - Fee Related CN204681638U (en) | 2015-05-17 | 2015-05-17 | A kind of LED bulb intelligent recharge and discharge circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204681638U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105357802A (en) * | 2015-11-30 | 2016-02-24 | 广东酷柏光电股份有限公司 | LED high-low voltage panic lamp strip |
| CN108886858A (en) * | 2016-02-18 | 2018-11-23 | 伊顿智能动力有限公司 | The non-firm power of light source and control in lamps and lanterns |
-
2015
- 2015-05-17 CN CN201520315131.9U patent/CN204681638U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105357802A (en) * | 2015-11-30 | 2016-02-24 | 广东酷柏光电股份有限公司 | LED high-low voltage panic lamp strip |
| CN108886858A (en) * | 2016-02-18 | 2018-11-23 | 伊顿智能动力有限公司 | The non-firm power of light source and control in lamps and lanterns |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150930 Termination date: 20160517 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |