The utility model content
The technical problem that the utility model will solve is that a kind of LED illuminating lamp with emergency function is provided.
The technical solution of the utility model is, a kind of LED illuminating lamp with following structure is provided, and comprises power circuit and LED lamp group, also comprises rechargeable battery, charging circuit, control circuit, constant current output circuit and switch; Described power circuit is connected with charging circuit, control circuit and constant current output circuit; Described control circuit is connected with constant current output circuit; Described constant current output circuit is connected with LED lamp group; Described charging circuit is connected with rechargeable battery; Described rechargeable battery is connected with control circuit and LED lamp group; Described switch is connected with control circuit.
After adopting above structure, the utility model LED illuminating lamp compared with prior art has the following advantages:
Because the LED illuminating lamp of the utility model also comprises rechargeable battery, charging circuit, control circuit, constant current output circuit and switch, during the power supply power supply, power supply provides power supply for LED lamp group and charges to rechargeable battery through charging circuit; When power cut-off, power supply is provided for LED lamp group by rechargeable battery, in power cut-off, LED can not extinguished like this, makes the LED illuminating lamp have emergent function, thereby brings convenience for people's live and work.Described switch is connected with control circuit, is used to control power circuit and rechargeable battery powered, in order to avoid rechargeable battery is given the power supply of LED lamp group and LED lamp group is lighted when powered-down artificially.
A kind of improvement as the utility model also comprises remote-control receiving circuit; Described remote-control receiving circuit is connected with power circuit, control circuit and rechargeable battery.After adopting this kind structure, can realize Long-distance Control, available remote controller is controlled power circuit and rechargeable battery powered.
Another kind as the utility model improves, and described power circuit comprises first current rectifying and wave filtering circuit, pwm control circuit, transforming circuit and second current rectifying and wave filtering circuit; Described first current rectifying and wave filtering circuit is connected with power supply and pwm control circuit; Described pwm control circuit is connected with transforming circuit; Described transforming circuit is connected with second current rectifying and wave filtering circuit; Described second current rectifying and wave filtering circuit is connected with charging circuit, control circuit, constant current output circuit and remote-control receiving circuit.Adopt this kind structure, simple in structure, realize easily.
As a kind of improvement of also having of the utility model, described rechargeable battery is a lithium battery.Is optimum implementation with lithium battery as rechargeable battery.
Description of drawings
Fig. 1 is the circuit block diagram of the utility model LED illuminating lamp.
Fig. 2 is the partial circuit schematic diagram of the utility model LED illuminating lamp.
Shown in the figure: 1, power circuit, 1.1, first current rectifying and wave filtering circuit, 1.2, pwm control circuit; 1.3, transforming circuit, 1.4, second current rectifying and wave filtering circuit, 2, charging circuit; 3, rechargeable battery, 4, constant current output circuit, 5, control circuit; 6, switch, 7, remote-control receiving circuit, 8, LED lamp group.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is described further.
See also shown in Figure 1ly, the LED illuminating lamp of the utility model comprises power circuit 1, LED lamp group 8, rechargeable battery 3, charging circuit 2, control circuit 5, constant current output circuit 4, switch 6 and remote-control receiving circuit 7, and described rechargeable battery 3 is a lithium battery.Described power circuit 1 is connected with charging circuit 2, control circuit 5 and constant current output circuit 4.Described control circuit 5 is connected with constant current output circuit 4, and described constant current output circuit 4 is connected with LED lamp group 8.Described charging circuit 2 is connected with rechargeable battery 3.Described rechargeable battery 3 is connected with control circuit 5 and LED lamp group 8.Described switch 6 is connected with control circuit 5.Described remote-control receiving circuit 7 is connected with power circuit 1, control circuit 5, rechargeable battery 3 and LED lamp group 8.
Described power circuit 1 comprises first current rectifying and wave filtering circuit 1.1, pwm control circuit 1.2, transforming circuit 1.3 and second current rectifying and wave filtering circuit 1.4; Described first current rectifying and wave filtering circuit 1.1 is connected with power supply and pwm control circuit 1.2; Described pwm control circuit 1.2 is connected with transforming circuit 1.3; Described transforming circuit 1.3 is connected with second current rectifying and wave filtering circuit 1.4; Described second current rectifying and wave filtering circuit 1.4 is connected with charging circuit 2, control circuit 5, constant current output circuit 4 and remote-control receiving circuit 7.
Please consult shown in Figure 2ly in the lump, described charging circuit 2 comprises chip U2, light-emitting diode L1, resistance R 1 and resistance R 2.Described second current rectifying and wave filtering circuit 1.4 is connected its minus earth through its positive pole after capacitor C 1 filtering with 4 pin (VCC pin) of chip U2.4 pin of described chip U2 are connected with the positive pole of light-emitting diode L1, and the negative pole of described light-emitting diode L1 1 pin (CHRG pin) in chip U2 after resistance R 2 connects 5 pin of described chip U2 ground connection after resistance R 1.2 pin of described chip U2 (GND pin) ground connection.The positive pole of rechargeable battery is connected the minus earth of rechargeable battery 3 with 3 pin (BAT pin) of chip U2.
Described control circuit 5 comprises chip U4.The cathode output end of described second current rectifying and wave filtering circuit 1.4 is connected with the positive pole of diode D3, and the negative pole of diode D3 is connected with 1 pin (VDD pin) of chip U4, and the negative pole of described diode D3 also is connected with the positive pole of capacitor C 3, the minus earth of capacitor C 3.The positive pole of described rechargeable battery is connected with the positive pole of diode D2, and the negative pole of diode D2 is connected with 1 pin (VDD pin) of chip U4, and the negative pole of described diode D2 also is connected with the positive pole of capacitor C 4, the minus earth of capacitor C 4.
Described constant current output circuit 4 comprises chip U3, resistance R 3, capacitor C 5, diode D1, inductance L 1 and capacitor C 6.The positive pole of described second current rectifying and wave filtering circuit 1.4 is connected with the positive pole of diode D4; The negative pole of described diode D4 is connected with 4 pin (VCC pin) of chip U3; The negative pole of described diode D4 also is connected with the collector electrode of triode N1 through resistance R 7, and the collector electrode of described triode N1 also is connected with 2 pin (EN pin) of chip U3.The base stage of triode N1 is connected with 3 pin (OSC2/GP4 pin) of chip U4 through resistance R 5 backs; The grounded emitter of triode N1.3 pin of described chip U3 (COMP pin) also pass through resistance R 3 back ground connection through capacitor C 5 back ground connection.7 pin of described chip U3 (GND pin) and 8 pin (GND pin) are ground connection all.1 pin (FB) of described chip U3 is connected with the negative pole of LED lamp group.5 pin of described chip U3 all are connected with an end of inductance L 1 with 6 pin, and an end of described inductance also is connected with the negative pole of diode D1, the plus earth of diode D1.The other end of inductance L 1 and 6 anodal connections of capacitor C, capacitor C 6 minus earths, the other end of described inductance L 1 also are connected with the positive pole of LED lamp group.
The positive pole of described rechargeable battery 3 is connected with the source electrode of metal-oxide-semiconductor P1; The positive pole of rechargeable battery 3 also is connected with the grid of metal-oxide-semiconductor P1 through resistance R 6 backs; The drain electrode of described metal-oxide-semiconductor P1 is connected with the collector electrode of triode N2; The base stage of described triode is connected the grounded emitter of described triode with 5 pin (GP2 pin) of chip U4 after resistance R 8.Described remote-control receiving circuit comprises chip U5, and 1 pin of chip U5 is connected with 1 pin of chip U4, the 2 pin ground connection of chip U5, and 3 pin of chip U5 are connected with 4 pin of chip U4 (MCLR/GP3 pin).Described switch is connected with 2 pin (OSC1/GP5 pin) of chip U4.
Described chip U1 is that model is the chip of AP3803; Described chip U2 is that model is the chip of LTC4054; Described chip U3 is that model is the chip of MPS5301; Described chip U4 is that model is the chip of PIC16F675.
During the power supply power supply; The input of 220V alternating current; Through importing in the transforming circuit after the first current rectifying and wave filtering circuit rectifying and wave-filtering and the pwm control circuit processing, after transforming circuit, import in second current rectifying and wave filtering circuit, again through exporting the 5V direct current after the second current rectifying and wave filtering circuit rectifying and wave-filtering.During the input of 5V direct current, charging circuit charges to rechargeable battery, automatic charge closing after rechargeable battery reaches float charge voltage.Receive the signal of remote controller when the remote control receiver module after, 4 pin of chip U4 can receive the signal of remote-control receiving circuit, and 3 pin of chip U4 can output signal to the base stage of triode N1 afterwards; The switch of control triode N1; Make chip U3 control the switch of LED lamp group, promptly give chip U5 when remote controller sends " turning on light " signal, chip U5 transmission " turning on light " signal is given chip U4; Chip U4 receives signal and signal is exported to triode N1; This moment, triode N1 was switched on, and chip U3 output voltage is lighted LED lamp group, otherwise just extinguishes LED lamp group.
During the power supply power failure, rechargeable battery is given chip U4 and chip U5 power supply, after the remote control receiver module receives the signal of remote controller; 4 pin of chip U4 can receive the signal of remote-control receiving circuit, and the signal of chip U45 pin output is afterwards controlled triode N2; Control conducting and the shutoff of metal-oxide-semiconductor P1 with the switch of triode N2, promptly give chip U5 when remote controller sends " turning on light " signal, chip U5 transmission " turning on light " signal is given chip U4; Chip U4 receives signal and signal is exported to triode N2, and this moment, triode N2 was switched on, and metal-oxide-semiconductor P1 also just is switched on after the triode N2 conducting; Metal-oxide-semiconductor P1 conducting; Rechargeable battery is given the power supply of LED lamp group, and LED lamp group is lighted, otherwise just extinguishes LED lamp group.
When described switch cuts out, when power supply is arranged, can charge, but can not light LED lamp group, also can't light LED lamp group with remote controller to rechargeable battery; During non-transformer, can not charge, can not light LED lamp group, also can't light LED lamp group with remote controller to rechargeable battery.During described switch opens, when power supply is arranged, can charge, also can control the light on and off of LED lamp group with remote controller to rechargeable battery; During non-transformer, can not charge, can control the light on and off of LED lamp group with remote controller to rechargeable battery.