CN211792141U - Emergency lamp circuit - Google Patents
Emergency lamp circuit Download PDFInfo
- Publication number
- CN211792141U CN211792141U CN202020499294.8U CN202020499294U CN211792141U CN 211792141 U CN211792141 U CN 211792141U CN 202020499294 U CN202020499294 U CN 202020499294U CN 211792141 U CN211792141 U CN 211792141U
- Authority
- CN
- China
- Prior art keywords
- circuit
- operational amplifier
- battery
- power supply
- supply circuit
- 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
- 230000002265 prevention Effects 0.000 claims description 5
- 238000007599 discharging Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Images
Classifications
-
- 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
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The utility model discloses an emergency lamp circuit, include EMC rectifier circuit, LED drive circuit, relay, battery charging circuit, prevent overdischarge circuit and supply circuit steps up. EMC rectifier circuit and LED drive circuit are connected, and LED drive circuit and relay are connected, and the relay is connected with charging circuit and power supply circuit that steps up respectively, and charging circuit and battery connection back are connected with the power supply circuit that steps up, and the power supply circuit that steps up is connected with the LED lamp, prevents that overdischarge circuit and battery and the power supply circuit that steps up are connected. The charging circuit comprises a first operational amplifier IC2-A, the anti-overdischarge circuit comprises a second operational amplifier IC2-B, and the functions of charging and discharging the battery are realized by using the first operational amplifier IC2-A and the second operational amplifier IC 2-B. And the battery is discharged to 2/3, the protection against over-discharge is provided. The durability of the battery is maintained. Thereby bringing a better use experience to the customer.
Description
Technical Field
The utility model relates to an emergency light field, in particular to emergency light circuit.
Background
Most of the existing emergency lamp circuits include a storage battery and a charging and discharging circuit, but most of the existing emergency lamp circuits perform over-current protection on the battery through an over-current protection IC. Which is relatively costly. Therefore, an emergency lamp circuit with lower cost and better use effect is needed.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims at providing an emergency light circuit with lower cost and better use effect.
The utility model provides an emergency lamp circuit, which comprises an EMC rectifying circuit, an LED driving circuit, a relay, a battery charging circuit, an over-discharge prevention circuit and a boosting power supply circuit; the EMC rectifying circuit is connected with the LED driving circuit, the LED driving circuit is connected with the relay, the relay is respectively connected with the charging circuit and the boosting power supply circuit, the charging circuit is connected with the battery and then connected with the boosting power supply circuit, the boosting power supply circuit is connected with the LED lamp, and the over-discharge prevention circuit is connected with the battery and the boosting power supply circuit; the battery charging circuit comprises a first operational amplifier, the positive end of the first operational amplifier is connected with the LED driving circuit, the negative end of the first operational amplifier is connected with the battery, the output end of the first operational amplifier is connected with the relay through a triode, and whether charging is started or not is controlled by comparing the voltages of the positive end and the negative end of the first operational amplifier; prevent that it includes second operational amplifier to cross the discharge circuit, the second operational amplifier positive end passes through bleeder circuit and is connected with the power supply circuit output that steps up, the second operational amplifier negative end with the battery is connected, the second operational amplifier output pass through triode Q1 with the power supply circuit that steps up connects, through bleeder circuit sets for the voltage of the second operational amplifier positive end, thereby passes through the second operational amplifier carries out the overcurrent protection to the battery.
Preferably, the LED driving circuit comprises a driving chip, and the model of the driving chip is BP 3636.
Preferably, the boost power supply circuit comprises an LED driving chip, and the model of the LED driving chip is BP 1808.
The utility model discloses an emergency light circuit's beneficial effect does:
the utility model discloses an emergency light circuit, include EMC rectifier circuit, LED drive circuit, relay, battery charging circuit, prevent overdischarge circuit and supply circuit steps up. EMC rectifier circuit and LED drive circuit are connected, and LED drive circuit and relay are connected, and the relay is connected with charging circuit and power supply circuit that steps up respectively, and charging circuit and battery connection back are connected with the power supply circuit that steps up, and the power supply circuit that steps up is connected with the LED lamp, prevents that overdischarge circuit and battery and the power supply circuit that steps up are connected. The charging circuit comprises a first operational amplifier IC2-A, the anti-overdischarge circuit comprises a second operational amplifier IC2-B, and the functions of charging and discharging the battery are realized by using the first operational amplifier IC2-A and the second operational amplifier IC 2-B. And the battery is discharged to 2/3, the protection against over-discharge is provided. The durability of the battery is maintained. Thereby bringing a better use experience to the customer.
Drawings
Fig. 1 is a circuit diagram of an emergency lamp circuit of the present invention;
the objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, an embodiment of the emergency light circuit of the present invention is provided:
an emergency lamp circuit comprises an EMC rectifying circuit, an LED driving circuit, a relay, a battery charging circuit, an over-discharge prevention circuit and a boosting power supply circuit.
EMC rectifier circuit and LED drive circuit are connected, and LED drive circuit and relay are connected, and the relay is connected with charging circuit and power supply circuit that steps up respectively, and charging circuit and battery connection back are connected with the power supply circuit that steps up, and the power supply circuit that steps up is connected with the LED lamp, prevents that overdischarge circuit and battery and the power supply circuit that steps up are connected.
The LED driving circuit comprises a driving chip, and the model of the driving chip is BP 3636.
The charging circuit comprises a first operational amplifier IC2-A, protection resistors R1, R5 and a transistor Q3. The positive end of the first operational amplifier IC2-A is connected with the LED drive circuit, the negative end of the first operational amplifier IC2-A is connected with the battery, the output end of the first operational amplifier is connected with the base electrode of the triode Q3 through a protective resistor R1, and the collector electrode of the triode Q3 is connected with the relay. The emitter of transistor Q3 is connected to ground.
The boost power supply circuit comprises an LED driving chip, and the model of the LED driving chip is BP 1808.
The over-discharge prevention circuit comprises a second operational amplifier IC2-B, the positive end of the second operational amplifier IC2-B is connected with the output end of the boosting power supply circuit through a voltage division circuit, the negative end of the second operational amplifier IC2-B is connected with a battery, the output end of the second operational amplifier IC2-B is connected with the base of a triode Q1, the collector of the triode Q1 is connected with the DIM pin of the LED driving chip of the boosting power supply circuit, the voltage of the positive end of the second operational amplifier IC2-B is set through the voltage division circuit, 3V is adopted in the embodiment, and therefore the battery is protected from electricity through the second operational amplifier IC 2-B.
When the battery is not charged and the emergency lamp is connected with alternating current, the pin 3 of the positive end of the first operational amplifier IC2-A is higher than the pin 2 of the negative end, and the pin 1 of the output end outputs high potential, so that the triode Q3 is conducted. Then the relay is closed. And lights an indicator lamp D9.
When the battery is fully charged and the emergency light is connected with alternating current, the voltage of the negative terminal pin 2 of the first operational amplifier IC2-A is higher than the voltage of the positive terminal pin 3, so that the triode Q3 is cut off, the relay is normally closed, and the indicator light D2 is lighted to indicate that the battery is fully charged.
When no alternating current exists, the battery supplies power to the LED lamp through the boosting power supply circuit, meanwhile, the voltage of the negative terminal 6 pin of the second operational amplifier IC2-B, namely the battery, is compared with the voltage of the positive terminal 5 pin of the second operational amplifier IC2-B, namely the preset voltage, if the voltage of the battery is higher than the preset voltage, the triode Q1 is cut off and works normally, and if the voltage of the battery is lower than the preset voltage, the triode Q1 is conducted, so that a low potential is input to the 3 pin of the LED driving chip BP1808, the boosting power supply circuit stops working, and over-discharge protection of the battery is achieved.
The function of charging and discharging the battery is realized by using the first operational amplifier IC2-A and the second operational amplifier IC 2-B. And the battery is discharged to 2/3, the protection against over-discharge is provided. The durability of the battery is maintained. Thereby bringing a better use experience to the customer.
The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structural changes made by the contents of the specification and the drawings, or the direct or indirect application in other related technical fields, are included in the same way in the protection scope of the present invention.
Claims (3)
1. An emergency lamp circuit is characterized by comprising an EMC rectifying circuit, an LED driving circuit, a relay, a battery charging circuit, an anti-overdischarge circuit and a boosting power supply circuit; the EMC rectifying circuit is connected with the LED driving circuit, the LED driving circuit is connected with the relay, the relay is respectively connected with the charging circuit and the boosting power supply circuit, the charging circuit is connected with the battery and then connected with the boosting power supply circuit, the boosting power supply circuit is connected with the LED lamp, and the over-discharge prevention circuit is connected with the battery and the boosting power supply circuit; the battery charging circuit comprises a first operational amplifier, the positive end of the first operational amplifier is connected with the LED driving circuit, the negative end of the first operational amplifier is connected with the battery, the output end of the first operational amplifier is connected with the relay through a triode, and whether charging is started or not is controlled by comparing the voltages of the positive end and the negative end of the first operational amplifier; prevent that it includes second operational amplifier to cross the discharge circuit, the second operational amplifier positive end passes through bleeder circuit and is connected with the power supply circuit output that steps up, the second operational amplifier negative end with the battery is connected, the second operational amplifier output pass through triode Q1 with the power supply circuit that steps up connects, through bleeder circuit sets for the voltage of the second operational amplifier positive end, thereby passes through the second operational amplifier carries out the overcurrent protection to the battery.
2. The emergency lamp circuit according to claim 1, wherein the LED driving circuit comprises a driving chip, and the driving chip is of a type BP 3636.
3. The emergency lamp circuit according to claim 1, wherein the boost power supply circuit comprises an LED driver chip, and the LED driver chip is of type BP 1808.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020499294.8U CN211792141U (en) | 2020-04-08 | 2020-04-08 | Emergency lamp circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020499294.8U CN211792141U (en) | 2020-04-08 | 2020-04-08 | Emergency lamp circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211792141U true CN211792141U (en) | 2020-10-27 |
Family
ID=72958940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020499294.8U Active CN211792141U (en) | 2020-04-08 | 2020-04-08 | Emergency lamp circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211792141U (en) |
-
2020
- 2020-04-08 CN CN202020499294.8U patent/CN211792141U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103166290A (en) | Control and protection circuit for single-lithium battery electric tool and detection and control method for control and protection circuit | |
| CN102810897B (en) | Charging circuit with short-circuit protection and charger | |
| CN210927200U (en) | Mobile power supply sharing charge-discharge interface | |
| CN106981902A (en) | A kind of charge-discharge circuit suitable for vehicle-mounted audio host backup nickel-hydrogen battery | |
| CN211792141U (en) | Emergency lamp circuit | |
| CN116039384B (en) | New energy high-power charging circuit | |
| CN110994778A (en) | Emergency fan control circuit, circuit board and emergency fan thereof | |
| CN2174006Y (en) | Multifunctional charger | |
| CN205724948U (en) | A kind of charging and discharging lithium battery control circuit | |
| CN210958157U (en) | Mobile power supply capable of outputting different voltages in self-adaptive mode | |
| CN205430711U (en) | Portable power source circuit and lamps and lanterns of lamps and lanterns | |
| CN211127289U (en) | Emergency fan control circuit, circuit board and emergency fan thereof | |
| CN211830249U (en) | Automobile starting battery protection circuit | |
| CN204559984U (en) | A kind of emergency light circuit | |
| CN214255809U (en) | Double-battery power supply circuit | |
| CN209748864U (en) | Dimmable vehicle-mounted charger control circuit | |
| CN210957842U (en) | Battery charging circuit and portable lamp | |
| JP3999719B2 (en) | Charging circuit for dry cell phone | |
| CN220653229U (en) | Shaver control circuit | |
| CN218183047U (en) | Boost charging circuit | |
| CN211509370U (en) | LED functional circuit with battery detection charge-discharge indication | |
| CN218243090U (en) | Vehicle-mounted product emergency power supply circuit, system and vehicle | |
| CN211831276U (en) | LED drive circuit with battery under-voltage protection | |
| CN210958195U (en) | Power adapter with multiple protection | |
| CN215267710U (en) | Intelligent door lock battery USB charging management circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |