CN211240199U

CN211240199U - Simple LED emergency bulb circuit

Info

Publication number: CN211240199U
Application number: CN201922468381.7U
Authority: CN
Inventors: 刘学棠; 李茂城; 廖昆
Original assignee: Jiangxi Huabo Energy Saving Lighting Technology Collaborative Innovation Co ltd; Jiangxi Top Quantum Lighting Tech Co ltd
Current assignee: Jiangxi Huabo Energy Saving Lighting Technology Collaborative Innovation Co ltd; Jiangxi Top Quantum Lighting Tech Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-08-11
Anticipated expiration: 2029-12-31

Abstract

The utility model discloses an emergent ball bubble circuit of simple and easy LED, including constant voltage AC power supply AC and overcurrent protection switch F, constant voltage AC power supply AC links to each other with rectifier BD 1's circuit, rectifier BD1 connects in parallel with piezo-resistor RV1, electric capacity CX1 respectively, electric capacity CX 1's positive pole respectively with chip IC 1's 5 feet, 6 feet electric connection, electric capacity CX 1's negative pole is connected with diode D1's positive pole, diode D1's positive pole respectively with chip IC 1's 7 feet, resistance R1 and resistance R2's one end electric connection, emergent detection circuitry is basically integrated inside IC, need not too many peripheral regulation circuitry, accurate alternating current impedance input detects, perfect battery protection and management, wide AC85-265V of actual use voltage range can realize global use, reduces IC peripheral auxiliary components, makes the design more simple and convenient, and the cost is lower, the performance is more stable. The operation is simple and convenient, and the production efficiency is improved.

Description

Simple LED emergency bulb circuit

Technical Field

The utility model relates to a lighting apparatus technical field specifically is a simple and easy emergent ball bubble circuit of LED.

Background

The led (lighting emitting diode) lighting is a light emitting diode lighting, which is a semiconductor solid state light emitting device. The solid semiconductor chip is used as a luminescent material, and at present, a plurality of countries or regions with lagging economic conditions often have power failure. Therefore, the LED emergency illuminating lamp is very suitable for the environments, and therefore, a simple LED emergency bulb circuit is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an emergent ball bubble circuit of simple and easy LED, this kind of circuit need not too many peripheral auxiliary device, and good battery protection circuit improves the price/performance ratio of product, optimizes the cost of product. The market competitiveness is enhanced to solve the problems suggested in the background art described above.

In order to achieve the above object, the utility model provides a following technical scheme: a simple LED emergency bulb circuit comprises a constant-voltage alternating-current power supply AC and an overcurrent protection switch F, wherein the constant-voltage alternating-current power supply AC is connected with a circuit of a rectifier BD1, the rectifier BD1 is connected with a piezoresistor RV1 and a capacitor CX1 in parallel, the anode of the capacitor CX1 is electrically connected with 5 pins and 6 pins of a chip IC1, the cathode of the capacitor CX1 is connected with the anode of a diode D1, the anode of the diode D1 is electrically connected with 7 pins of a chip IC1, a resistor R1 and one end of a resistor R2, the other ends of the resistor R1 and the resistor R2 are electrically connected with the anode of the capacitor C3, a pin 2 of the chip IC1, the anode of a capacitor C1, one end of the resistor R3 and the primary of a transformer T1, the other end of the resistor R3 is connected with a resistor R4 in series and connected with a pin 4 of the chip IC1, and the R3 and an emergency control circuit are connected with the resistor R4 in series, the emergency control circuit is connected with a capacitor EC1, a resistor R5 and a first light emitting diode LED1 circuit in parallel, a second light emitting diode LED2 circuit is electrically connected below the first light emitting diode LED1 circuit, and the cathode of the second light emitting diode LED2 circuit is respectively connected with one end of the rectifier BD1, the cathode of the diode D1, the cathode of the capacitor EC1, the cathode of the resistor R5 and the cathode of the second light emitting diode LED2 circuit.

Preferably: the number of the rectifier BD1 is at least four groups of diodes, and the diodes in the rectifier BD1 are connected with each other in an end-to-end line mode.

Preferably: the emergency control circuit comprises a transformer T1, a resistor R10, a diode D2, a diode D3, a chip IC2, a resistor R13, a resistor RS1, a diode D4, a power supply S1 and a capacitor C4, the secondary of the transformer T1 is connected with the cathode of a diode D2 through a resistor R10, the anode of the diode D2 is respectively connected with the pin 6 of the chip IC2 and the anode of a power supply S1, the cathode of the power supply S1 is connected with the pin 5 of the chip IC2, one end of the diode D3 is connected with one end of the resistor R13 and the L end of the constant voltage alternating current power supply AC, the other end of the resistor R13 is connected with pin 1 of the chip IC2, pin 3 of the chip IC2 is connected with one end of the resistor RS1, the other end of the resistor RS1 is connected with the negative pole of the second LED2, the other end of the diode D3 is connected to one end of the diode D4 and one end of the capacitor C4, respectively.

Preferably: the model of the chip IC1 is KP1063, and the model of the chip IC2 is IC 9007S.

Preferably: the L and N ends of the constant-voltage alternating current power supply AC are respectively connected with an overcurrent protection switch F, and the overcurrent protection switch F comprises an overcurrent protection switch F1 and an overcurrent protection switch F2.

Preferably: the first light-emitting diode LED1 circuit comprises at least four groups of 9VLED lamp beads which are connected in series, and the first light-emitting diode LED circuit comprises at least four groups of 3VLED lamp beads which are connected in parallel.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the emergency detection circuit is basically integrated inside the IC, and too many peripheral adjusting circuits are not needed.

2. Accurate AC impedance input detection.

3. Perfect battery protection and management.

4. The practical use voltage range is wide AC85-265V, and the global use can be realized.

5. And the number of peripheral auxiliary components of the IC is reduced, so that the design is simpler and more convenient, the cost is lower, and the performance is more stable. The operation is simple and convenient, and the production efficiency is improved.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a pin definition diagram of the chip IC2 according to the present invention;

fig. 3 is a top view of the PCB of the present invention;

FIG. 4 is a pin illustration list of FIG. 2 according to the present invention;

FIG. 5 is an electrical schematic diagram of the present invention

Fig. 6 is the utility model discloses an use ordinary illumination and emergent illumination converting circuit LED emergency bulb lamp drive schematic diagram.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-6, the present invention provides a technical solution: a simple LED emergency bulb circuit comprises a constant-voltage alternating-current power supply AC and an overcurrent protection switch F, wherein the constant-voltage alternating-current power supply AC is connected with a circuit of a rectifier BD1, the rectifier BD1 is connected with a piezoresistor RV1 and a capacitor CX1 in parallel, the anode of the capacitor CX1 is electrically connected with 5 pins and 6 pins of a chip IC1, the cathode of the capacitor CX1 is connected with the anode of a diode D1, the anode of the diode D1 is electrically connected with 7 pins of a chip IC1, a resistor R1 and one end of a resistor R2, the other ends of the resistor R1 and the resistor R2 are electrically connected with the anode of the capacitor C3, a pin 2 of the chip IC1, the anode of a capacitor C1, one end of the resistor R3 and the primary of a transformer T1, the other end of the resistor R3 is connected with a resistor R4 in series and connected with a pin 4 of the chip IC1, and the R3 and an emergency control circuit are connected with the resistor R4 in series, the emergency control circuit is connected with a capacitor EC1, a resistor R5 and a first light emitting diode LED1 circuit in parallel, a second light emitting diode LED2 circuit is electrically connected below the first light emitting diode LED1 circuit, and the cathode of the second light emitting diode LED2 circuit is respectively connected with one end of the rectifier BD1, the cathode of the diode D1, the cathode of the capacitor EC1, the cathode of the resistor R5 and the cathode of the second light emitting diode LED2 circuit.

In this embodiment, specifically: the number of the rectifier BD1 is at least four groups of diodes, and the diodes in the rectifier BD1 are connected with each other in an end-to-end line mode.

In this embodiment, specifically: the emergency control circuit comprises a transformer T1, a resistor R10, a diode D2, a diode D3, a chip IC2, a resistor R13, a resistor RS1, a diode D4, a power supply S1 and a capacitor C4, the secondary of the transformer T1 is connected with the cathode of a diode D2 through a resistor R10, the anode of the diode D2 is respectively connected with the pin 6 of the chip IC2 and the anode of a power supply S1, the cathode of the power supply S1 is connected with the pin 5 of the chip IC2, one end of the diode D3 is connected with one end of the resistor R13 and the L end of the constant voltage alternating current power supply AC, the other end of the resistor R13 is connected with pin 1 of the chip IC2, pin 3 of the chip IC2 is connected with one end of the resistor RS1, the other end of the resistor RS1 is connected with the negative pole of the second LED2, the other end of the diode D3 is connected to one end of the diode D4 and one end of the capacitor C4, respectively.

In this embodiment, specifically: the model of the chip IC1 is KP1063, and the model of the chip IC2 is IC 9007S.

In this embodiment, specifically: the L and N ends of the constant-voltage alternating current power supply AC are respectively connected with an overcurrent protection switch F, and the overcurrent protection switch F comprises an overcurrent protection switch F1 and an overcurrent protection switch F2.

In this embodiment, specifically: the first light-emitting diode LED1 circuit comprises at least four groups of 9VLED lamp beads which are connected in series, and the first light-emitting diode LED circuit comprises at least four groups of 3VLED lamp beads which are connected in parallel.

The working principle is as follows: when the device is used, the alternating current detection IC9007S is a professional emergency detection control chip and can realize EN pin level conversion according to the impedance state between VL and VN. When 85-265Vac voltage is normally input between VL and VN, an internal switching tube is cut off, and EN outputs low level; when the impedance between VL and VN is larger than 300k omega, the internal switching tube is cut off, and EN outputs low level; with no AC input, while VL is in contact with

When the impedance between VNs is less than 300k omega, EN outputs high level.

(2) Battery management

The IC9007S integrates a complete single lithium battery protection management module. The battery protection management includes: overcharge protection, overdischarge protection, overcurrent protection, battery short circuit protection and charger detection circuit. The battery protection switch MOSFET is built in and the equivalent resistance is typically 66m omega.

(3) Emergency drive current

The EN pin and BTN pin of IC9007S have an equivalent 200 milli-ohm and 66 milli-ohm switch built into them, respectively. When the EN outputs high level, a current-limiting resistor can be connected between the EN pin and the emergency lamp LED in series to supply power to the emergency lamp LED load. The specific current ILED is calculated approximately according to the following formula:

ILED＝(VBAT-VLED)/(R+0.27)

VBAT is battery voltage, VLED is emergency lamp bead voltage drop, and ILED is a preset emergency driving circuit; for example, the preset emergency lamp current ILED is 500mA, and assuming that the battery voltage VBAT is 3.8V and the emergency lamp bead voltage drop VLED is 3.3V, the calculation is performed according to the formula:

R＝(3.8-3.3)/0.5-0.27＝0.73

(4) line principle analysis

When the L and N wires are electrified, the L and N wires pass through an F1 protective tube → RV1 anti-surge detection → BD1 rectifier bridge → CX2 filtering → IC1 high-frequency detection constant current (R1/R2 can adjust the magnitude of output current, and the ratio of R4 to R3 can set the magnitude of output no-load voltage) → T1 high-frequency oscillation output → EC1 filtering → 9V LED

LED → ground of → 3V (negative electrode of BD 1). This forms a normally operating circuit.

While operating normally, a voltage of 3-5V is set by the secondary winding of T1 (since the voltage of the battery is set to 2.8-4.2V). The T1 voltage transformation → R10 current limiting → D2 rectification → S1 battery charging (D4 is a battery overcharge protection tube, D4 is a 4.2V voltage stabilizing diode, when the battery voltage is charged to 4.2V, the voltage stabilizing diode is clamped by D4.) the resistance value of R9 and R13 is set to 200K, at this time, the output of pin 3 (EN) of IC9007S is low, and the 3V LED (emergency LED) stops working.

When the L, N lines are powered off, the impedance between pin 1 (VL) and pin 8 (VN) of the IC9007S is less than 300k Ω, and pin 3 (EN) outputs high. An emergency lighting loop is formed by pin 3 of IC2 → RS1 (emergency output current regulation) → 3V of LEDs → ground (pin IC 4).

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an emergent ball bubble circuit of simple and easy LED, includes constant voltage alternating current power supply AC and overcurrent protection switch F, its characterized in that: the constant-voltage alternating current power supply AC is connected with a line of a rectifier BD1, the rectifier BD1 is respectively connected with a voltage dependent resistor RV1 and a capacitor CX1 in parallel, the anode of the capacitor CX1 is respectively electrically connected with a pin 5 and a pin 6 of a chip IC1, the cathode of the capacitor CX1 is connected with the anode of a diode D1, the anode of the diode D1 is respectively electrically connected with a pin 7 of the chip IC1, one end of a resistor R1 and a resistor R2, the other ends of the resistor R1 and the resistor R2 are respectively electrically connected with the anode of a capacitor C3, a pin 2 of a chip IC1, the anode of a capacitor C1, one end of a resistor R3 and a primary side of a transformer T1, the other end of the resistor R3 is provided with a resistor R4 and connected with a pin 4 of the chip IC1, the resistor R3 and the resistor R4 are connected in series with an emergency control line, the emergency control line EC1, the capacitor EC 5 and the first light emitting diode 1 are connected in parallel with each other, a second light emitting diode LED2 circuit is electrically connected to the lower portion of the first light emitting diode LED1 circuit, and the negative electrode of the second light emitting diode LED2 circuit is connected to one end of the rectifier BD1, the negative electrode of the diode D1, the negative electrode of the capacitor EC1, one end of the resistor R5, and the negative electrode of the second light emitting diode LED2 circuit.

2. The simple LED emergency bulb circuit according to claim 1, characterized in that: the number of the rectifier BD1 is at least four groups of diodes, and the diodes in the rectifier BD1 are connected with each other in an end-to-end line mode.

3. The simple LED emergency bulb circuit according to claim 1, characterized in that: the emergency control circuit comprises a transformer T1, a resistor R10, a diode D2, a diode D3, a chip IC2, a resistor R13, a resistor RS1, a diode D4, a power supply S1 and a capacitor C4, the secondary of the transformer T1 is connected with the cathode of a diode D2 through a resistor R10, the anode of the diode D2 is respectively connected with the pin 6 of the chip IC2 and the anode of a power supply S1, the cathode of the power supply S1 is connected with the pin 5 of the chip IC2, one end of the diode D3 is connected with one end of the resistor R13 and the L end of the constant voltage alternating current power supply AC, the other end of the resistor R13 is connected with pin 1 of the chip IC2, pin 3 of the chip IC2 is connected with one end of the resistor RS1, the other end of the resistor RS1 is connected with the negative pole of the second LED2, the other end of the diode D3 is connected to one end of the diode D4 and one end of the capacitor C4, respectively.

4. The simple LED emergency bulb circuit according to claim 1 or 3, wherein: the model of the chip IC1 is KP1063, and the model of the chip IC2 is IC 9007S.

5. The simple LED emergency bulb circuit according to claim 1, characterized in that: the L and N ends of the constant-voltage alternating current power supply AC are respectively connected with an overcurrent protection switch F, and the overcurrent protection switch F comprises an overcurrent protection switch F1 and an overcurrent protection switch F2.

6. The simple LED emergency bulb circuit according to claim 1, characterized in that: the first light-emitting diode LED1 circuit comprises at least four groups of 9VLED lamp beads which are connected in series, and the first light-emitting diode LED circuit comprises at least four groups of 3VLED lamp beads which are connected in parallel.