CN105357843A - Intelligent LED lamp energy-saving control system based on constant-current rectification filter circuit - Google Patents
Intelligent LED lamp energy-saving control system based on constant-current rectification filter circuit Download PDFInfo
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- CN105357843A CN105357843A CN201510922053.3A CN201510922053A CN105357843A CN 105357843 A CN105357843 A CN 105357843A CN 201510922053 A CN201510922053 A CN 201510922053A CN 105357843 A CN105357843 A CN 105357843A
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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
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- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The invention discloses an intelligent LED lamp energy-saving control system based on a constant-current rectification filter circuit. The energy-saving control system is mainly composed of a single-chip microcomputer, a power supply, a switch circuit connected with the single-chip microcomputer, a brightness sensor connected with the single-chip microcomputer, an LED lamp connected with the switch circuit, and a three-line filter drive amplification circuit connected in series between the LED lamp and the switch circuit. The energy-saving control system is characterized in that the constant-current rectification filter circuit is further connected in series between the power supply and the single-chip microcomputer, and the constant-current rectification filter circuit is composed of a voltage acquisition circuit connected with the power supply, a current detection circuit connected with the voltage acquisition circuit and a voltage transformation output circuit connected with the voltage acquisition circuit and the current detection circuit. The intelligent LED lamp energy-saving control system can effectively ensure an intelligent LED lamp energy-saving drive system to be capable of accurately output different currents according to changes of indoor brightness, so energy consumption of the intelligent energy-saving LED lamp is effectively reduced, and then a human's requirement for the LED lamp on the energy-saving aspect is met.
Description
Technical field
The present invention relates to the control system of intelligent electronic device, what be specifically related to is a kind of energy-saving control system of the Intelligent LED lamp based on constant current current rectifying and wave filtering circuit.
Background technology
At present, LED, as novel energy-conserving light source, with its environmental protection, the feature such as energy-conservation, the life-span is long, volume is little, is extensively received by people and adopts.Along with people's living standard constantly improves, no matter have higher requirement to LED brightness and energy consumption at home or in shop, namely people need, while improving LED brightness further, to need LED to have lower energy consumption.So people just have higher requirement in energy-conservation to LED.
But, the LED that current people use, due to stability of control system difference and the brightness of the LED that cannot control effectively according to different ambient brightnesss, and the drive current exported can not regulate the different demands of LED brightness according to people, cause a large amount of energy wastes, thus people can not be met to the requirement of LED in energy-conservation.
Summary of the invention
Not only load capacity is poor to the object of the invention is to the drive system of the LED overcoming prior art, and the drive current exported can not regulate the different demands of LED brightness according to people, cause the defect of a large amount of energy wastes, a kind of energy-saving control system of the Intelligent LED lamp based on constant current current rectifying and wave filtering circuit is provided.
The present invention is achieved through the following technical solutions: based on the energy-saving control system of the Intelligent LED lamp of constant current current rectifying and wave filtering circuit, primarily of single-chip microcomputer, power supply, the switching circuit be all connected with single-chip microcomputer, luminance sensor, the LED be connected with switching circuit, and be serially connected in three line filtering drive amplification circuit compositions between LED and switching circuit.Meanwhile, between power supply and single-chip microcomputer, constant current current rectifying and wave filtering circuit is also serially connected with.
Described constant current current rectifying and wave filtering circuit then by the voltage collection circuit be connected with power supply, the current detection circuit be connected with voltage collection circuit, and the transformation output circuit be connected with current detection circuit with voltage collection circuit respectively forms.The output of described transformation output circuit is connected with single-chip microcomputer.
Described voltage collection circuit is by diode rectifier U2, triode VT3, one end is connected with one of them input of diode rectifier U2, the resistance R20 of the input of the common coating-forming voltage Acquisition Circuit of another input of the other end and diode rectifier U2, positive pole is connected with the cathode output end of diode rectifier U2, the polar capacitor C9 that negative pole is connected with the cathode output end of diode rectifier U2, positive pole is connected with the positive pole of polar capacitor C9 after inductance L through resistance R22 in turn, the polar capacitor C10 that negative pole is connected with the negative pole of polar capacitor C9 after resistance R21, P pole is connected with the tie point of inductance L with resistance R22, the diode D7 that N pole is connected with the negative pole of polar capacitor C10 after resistance R23, and one end is connected with the P pole of diode D7, the resistance R32 that the other end is connected with the base stage of triode VT3 forms, the emitter of described triode VT3 is connected with the negative pole of polar capacitor C10, the emitter of described triode VT3 and the P of diode the D7 extremely common output of coating-forming voltage Acquisition Circuit, the grounded collector of its triode VT3.
Described current detection circuit is by detection chip U1, triode VT4, triode VT5, P pole is connected with the VIN pin of detection chip U1 after resistance R25 through resistance R24 in turn, the diode D8 that N pole is connected with the collector electrode of triode VT5, negative pole is connected with the emitter of triode VT5, the polar capacitor C12 that positive pole is connected with the SE pin of detection chip U1 after resistance R28, N pole is connected with the base stage of triode VT4, the diode D9 that P pole is connected with the SET pin of detection chip U1 after resistance R27, positive pole is connected with the collector electrode of triode VT5, the polar capacitor C11 that negative pole is connected with the LX pin of detection chip U1 after resistance R29, one end is connected with the collector electrode of triode VT4, the resistance R30 that the other end is connected with the negative pole of polar capacitor C11, and one end is connected with the GND pin of detection chip U1, the resistance R26 of other end ground connection forms, the base stage of described triode VT5 is connected with the emitter of triode VT3, the emitter of described triode VT4 is as output, its grounded collector of current detection circuit.
Described transformation output circuit is by transformer T, negative pole is connected with the non-same polarity of the former limit inductance coil of transformer T, the polar capacitor C14 that positive pole is connected with the Same Name of Ends of the former limit inductance coil of transformer T, positive pole is connected with the Same Name of Ends of the former limit inductance coil of transformer T, the polar capacitor C13 that negative pole is connected with the emitter of triode VT4 after resistance R31, one end is connected with the negative pole of polar capacitor C14, the resistance R33 that the other end is connected with the positive pole of polar capacitor C14, P pole is connected with the Same Name of Ends of the secondary inductance coil of transformer T, the diode D10 that N pole is connected with the non-same polarity of the secondary inductance coil of transformer T after polar capacitor C16, and negative pole is connected with the N pole of diode D10, the polar capacitor C15 that positive pole is connected with the Same Name of Ends of the secondary inductance coil of transformer T after resistance R34 forms, the non-same polarity of former limit inductance coil of described transformer T is connected with the P pole of diode D7, and the non-same polarity of the secondary inductance coil of this transformer T and the N of diode D10 form the output of transformation output circuit extremely jointly.
Described three line filtering drive amplification circuit by integrated chip U, the current filtering circuit be all connected with integrated chip U and current driving circuit, and the operational amplification circuit be connected between current filtering circuit and current driving circuit forms.
Described current filtering circuit is by triode VT1, positive pole is connected with the CLK pin of integrated chip U, negative pole is in turn through polar capacitor C1 that resistance R4 is connected with the OPIN pin of integrated chip U after resistance R5, P pole is connected with the base stage of triode VT1 after resistance R15, the diode D1 that N pole is connected with the AL pin of integrated chip U after resistance R6, positive pole is connected with the SW pin of integrated chip U, the polar capacitor C6 that negative pole is connected with the emitter of triode VT1, one end is connected with the CLK pin of integrated chip U, the IN pin of the other end and integrated chip U forms the resistance R1 of the input of current filtering circuit jointly, positive pole is connected with the CLK pin of integrated chip U, the polar capacitor C2 that negative pole is connected with the IN pin of integrated chip U, and positive pole is connected with the IN pin of integrated chip U after resistance R3, the polar capacitor C3 that negative pole jointly forms the output of current filtering circuit with the base stage of triode VT1 after resistance R2 forms, the OPIN pin of described integrated chip U is connected with the positive pole of polar capacitor C6, the collector electrode of described triode VT1 is connected, its base stage as current filtering circuit output and be connected with current driving circuit.
Described operational amplification circuit is by amplifier P1, polar capacitor C5, N pole is connected with the output of amplifier P1, P pole is in turn through diode D2 that resistance R7 is connected with the electrode input end of amplifier P1 after polar capacitor C4, P pole is connected with the electrode input end of amplifier P1 after resistance R17, the diode D6 that the output that N pole jointly forms operational amplification circuit with the negative pole of polar capacitor C5 after resistance R18 is connected with current driving circuit, and one end is connected with the output of amplifier P1, the resistance R10 that the other end is connected with the positive pole of polar capacitor C5 forms, the negative input of described amplifier P1 is connected with the negative pole of polar capacitor C3 after resistance R2.
Current driving circuit is by triode VT2, amplifier P2, negative pole is connected with the negative input of amplifier P2, the polar capacitor C7 that positive pole is connected with the OUT pin of integrated chip U after resistance R8, P pole is connected with the base stage of triode VT2 after resistance R9 through resistance R12 in turn, the diode D3 that N pole is connected with the electrode input end of amplifier P2 after resistance R16, P pole is connected with the electrode input end of amplifier P2, the diode D4 that N pole is connected with the base stage of triode VT1, positive pole is connected with the N pole of diode D3, negative pole is in turn through polar capacitor C8 that resistance R13 is connected with the output of amplifier P2 after resistance R14, and P pole is connected with the base stage of triode VT2 after resistance R11, the diode D5 that the output of N pole and amplifier P2 forms the output of current driving circuit jointly forms, the emitter of described triode VT2 is connected with the negative pole of polar capacitor C5, its grounded collector, the negative input of described amplifier P2 is connected with the N pole of diode D6 after resistance R18.
For guaranteeing practical effect of the present invention, described integrated chip U preferentially adopts MAX291 integrated chip to realize; And detection chip U1 preferentially adopts SOT23-5 integrated chip to realize.
The present invention compared with prior art has the following advantages and beneficial effect:
(1) constant current current rectifying and wave filtering circuit of the present invention can realize minimizing current sampling voltage, and can detect the carrying out of low current and reduce electric current by time loss, power supply can also be carried out the 12V direct voltage of stable output after transformation, thus ensure that the certainty of the work of single-chip microcomputer.
(2) three line filtering drive amplification circuit of the present invention effectively can carry out filtering, overvoltage protection, overheat protector to the electric current and voltage of input; and the electric current and voltage of stable output can be guaranteed, thus effectively ensure that the stability of the energy-saving driving system of this Intelligent LED lamp.
(3) present invention employs brightness impression device, this inductor has the advantages such as highly sensitive, controllability is strong, the brightness value that sense collects can also be converted to the luminance signal of available output, thus ensure that the energy-saving control system of this Intelligent LED lamp can export different electric currents according to the brightness change of indoor, thus can effectively reduce the energy resource consumption of LED.
(4) overall structure of the present invention is simple, not only makes and very easy to use, and stability is high.
Accompanying drawing explanation
Fig. 1 is overall structure block diagram of the present invention.
Fig. 2 is the electrical block diagram of three line filtering drive amplification circuit of the present invention.
Fig. 3 is the electrical block diagram of constant current current rectifying and wave filtering circuit of the present invention.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Embodiment
As shown in Figure 1, the present invention is primarily of single-chip microcomputer, power supply, the switching circuit be all connected with single-chip microcomputer, luminance sensor, the LED be connected with switching circuit, be serially connected in the constant current current rectifying and wave filtering circuit between power supply and single-chip microcomputer, and be serially connected in three line filtering drive amplification circuit compositions between LED and switching circuit.Wherein, as shown in Figure 2, it is by integrated chip U for the structure of this three lines filtering drive amplification circuit, and the current filtering circuit, operational amplification circuit and the current driving circuit that are all connected with integrated chip U form.
For guaranteeing reliability service of the present invention, described single-chip microcomputer is LT3474 single-chip microcomputer, and the REF pin of this LT3474 single-chip microcomputer is connected with brightness impression device, and OUT pin is connected with switching circuit respectively with PWM pin.Described power supply is 220V alternating current, and this 220V alternating current exports 12V direct current after the rectifying and wave-filtering transformation of constant current current rectifying and wave filtering circuit, and this 12V direct current is that single-chip microcomputer is powered.
As shown in Figure 2, this current filtering circuit by triode VT1, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, resistance R15, polar capacitor C1, polar capacitor C2, polar capacitor C3, polar capacitor C6, and diode D1 forms.
During connection, the positive pole of polar capacitor C1 is connected with the CLK pin of integrated chip U, negative pole is connected with the OPIN pin of integrated chip U after resistance R5 through resistance R4 in turn.The P pole of diode D1 is connected with the base stage of triode VT1 after resistance R15, N pole is connected with the AL pin of integrated chip U after resistance R6.The positive pole of polar capacitor C6 is connected with the SW pin of integrated chip U, negative pole is connected with the emitter of triode VT1.
Wherein, one end of resistance R1 is connected with the CLK pin of integrated chip U, the other end jointly forms the input of current filtering circuit with the IN pin of integrated chip U and be connected with switching circuit.The positive pole of polar capacitor C2 is connected with the CLK pin of integrated chip U, negative pole is connected with the IN pin of integrated chip U.The positive pole of polar capacitor C3 is connected with the IN pin of integrated chip U after resistance R3, negative pole is connected with the negative input of amplifier P1 after resistance R2.
The OPIN pin of described integrated chip U is connected with the positive pole of polar capacitor C6; The collector electrode of described triode VT1 is connected, its base stage is connected with current driving circuit as the output of current filtering circuit; The IN pin of described integrated chip U is connected with the OUT pin of LT3474 single-chip microcomputer.
Meanwhile, described operational amplification circuit by amplifier P1, resistance R7, resistance R10, resistance R17, resistance R18, polar capacitor C4, polar capacitor C5, diode D2, and diode D6 forms.
During connection, the N pole of diode D2 is connected with the output of amplifier P1, its P pole is connected with the negative pole of polar capacitor C4 after resistance R7, and the positive pole of described polar capacitor C4 is then connected with the electrode input end of amplifier P1.The P pole of diode D6 is connected with the electrode input end of amplifier P1 after resistance R17, N pole jointly forms the output of operational amplification circuit with the negative pole of polar capacitor C5 and is connected with current driving circuit after resistance R18.One end of resistance R10 is connected with the output of amplifier P1, the other end is connected with the positive pole of polar capacitor C5.
Meanwhile, described current driving circuit by triode VT2, amplifier P2, resistance R8, resistance R9, resistance R11, resistance R12, resistance R13, resistance R14, resistance R16, polar capacitor C7, polar capacitor C8, diode D3, diode D4, and diode D5 forms.
During connection, the negative pole of polar capacitor C7 is connected with the negative input of amplifier P2, positive pole is connected with the OUT pin of integrated chip U after resistance R8.The P pole of diode D3 is connected with the base stage of triode VT2 after resistance R9 through resistance R12 in turn, N pole is connected with the electrode input end of amplifier P2 after resistance R16.The P pole of diode D4 is connected with the electrode input end of amplifier P2, N pole is connected with the base stage of triode VT1.The positive pole of polar capacitor C8 is connected with the N pole of diode D3, negative pole is connected with the output of amplifier P2 after resistance R14 through resistance R13 in turn.The P pole of diode D5 is connected with the base stage of triode VT2 after resistance R11, the output of N pole and amplifier P2 forms the output of current driving circuit jointly.The emitter of described triode VT2 is connected with the negative pole of polar capacitor C5, its grounded collector; The negative input of described amplifier P2 is connected with the N pole of diode D6 after resistance R18.
The present invention operationally, when the brightness of LED is lower than brightness contrast value in single-chip microcomputer, the circuit signal that switching circuit exports is converted to drive current by after integrated chip U process after resistance R1, polar capacitor C2 carry out high impedance filtration, and this drive current exports after amplifying via operational amplification circuit.This drive current after operational amplification circuit amplifies is transferred to after current driving circuit amplifies again and exports high drive current.When the brightness of LED is greater than the brightness contrast value in single-chip microcomputer, the SW pin of integrated chip U exports low drive current and exports low drive current through current driving circuit.In order to better implement the present invention, described integrated chip U preferentially adopts the MAX291 integrated chip of stable performance to realize.
As shown in Figure 3, described constant current current rectifying and wave filtering circuit by voltage collection circuit, current detection circuit, and transformation output circuit composition; Described voltage collection circuit by diode rectifier U2, triode VT3, resistance R20, resistance R21, resistance R22, resistance R23, resistance R32, polar capacitor C9, polar capacitor C10, inductance L, and diode D7 forms.
During connection, one end of resistance R20 is connected with one of them input of diode rectifier U2, the input of the other end and the common coating-forming voltage Acquisition Circuit of another input of diode rectifier U2 being connected with power supply.The positive pole of polar capacitor C9 is connected with the cathode output end of diode rectifier U2, negative pole is connected with the cathode output end of diode rectifier U2.The positive pole of polar capacitor C10 is connected with the positive pole of polar capacitor C9 after inductance L through resistance R22 in turn, negative pole is connected with the negative pole of polar capacitor C9 after resistance R21.The P pole of diode D7 is connected with the tie point of inductance L with resistance R22, N pole is connected with the negative pole of polar capacitor C10 after resistance R23.One end of resistance R32 is connected with the P pole of diode D7, the other end is connected with the base stage of triode VT3.
The emitter of described triode VT3 is connected with the negative pole of polar capacitor C10, the emitter of described triode VT3 as voltage collection circuit a wherein output and be connected with current detection circuit, the grounded collector of its triode VT3; The P pole of described diode D7 is connected with transformation output circuit as another output of voltage collection circuit.
Meanwhile, described current detection circuit by detection chip U1, triode VT4, triode VT5, resistance R24, resistance R25, resistance R26, resistance R27, resistance R28, resistance R29, resistance R30, diode D8, diode D9, polar capacitor C11, and polar capacitor C12 forms.
During connection, the P pole of diode D8 is connected with the VIN pin of detection chip U1 after resistance R25 through resistance R24 in turn, N pole is connected with the collector electrode of triode VT5.The negative pole of polar capacitor C12 is connected with the emitter of triode VT5, positive pole is connected with the SE pin of detection chip U1 after resistance R28.The N pole of diode D9 is connected with the base stage of triode VT4, P pole is connected with the SET pin of detection chip U1 after resistance R27.The positive pole of polar capacitor C11 is connected with the collector electrode of triode VT5, negative pole is connected with the LX pin of detection chip U1 after resistance R29.One end of resistance R30 is connected with the collector electrode of triode VT4, the other end is connected with the negative pole of polar capacitor C11.One end of resistance R26 is connected with the GND pin of detection chip U1, other end ground connection.
The base stage of described triode VT5 is connected with the emitter of triode VT3; The emitter of described triode VT4 as current detection circuit output and be connected with transformation output circuit, its grounded collector.
Meanwhile, described transformation output circuit by transformer T, resistance R31, resistance R33, resistance R34, polar capacitor C13, polar capacitor C14, polar capacitor C15, polar capacitor C16, and diode D10 forms.
During connection, the negative pole of polar capacitor C14 is connected with the non-same polarity of the former limit inductance coil of transformer T, positive pole is connected with the Same Name of Ends of the former limit inductance coil of transformer T.The positive pole of polar capacitor C13 is connected with the Same Name of Ends of the former limit inductance coil of transformer T, negative pole is connected with the emitter of triode VT4 after resistance R31.One end of resistance R33 is connected with the negative pole of polar capacitor C14, the other end is connected with the positive pole of polar capacitor C14.The P pole of diode D10 is connected with the Same Name of Ends of the secondary inductance coil of transformer T, N pole is connected with the non-same polarity of the secondary inductance coil of transformer T after polar capacitor C16.And the negative pole of polar capacitor C15 is connected with the N pole of diode D10, positive pole is connected with the Same Name of Ends of the secondary inductance coil of transformer T after resistance R34.
The non-same polarity of former limit inductance coil of described transformer T is connected with the P pole of diode D7, and the non-same polarity of the secondary inductance coil of this transformer T is connected with the VC pin of LT3474 single-chip microcomputer; The N pole of described diode D10 is connected with the IN pin of LT3474 single-chip microcomputer.
The present invention operationally, the electric current and voltage of power supply enters by diode rectifier U2 through the input of diode rectifier U2, filter capacitor C9, impedance resistors R21, the voltage collection circuit of the element compositions such as inductance L and throttling triode VT3, this circuit carries out filtering and the rear output voltage electric current of high impedance workmanship to gathered voltage, this electric current and voltage is transferred to detection chip U1, exported by its SET pin when detection chip U1 detects that electric current and voltage is too high after resistance R27 and diode D9, to be transferred to through the emitter of triode VT4 that to export 12V direct voltage after the transforming circuit be made up of transformer T and polar capacitor C14 and diode D10 carries out step-down be that single-chip microcomputer is powered.As detection chip U1 stablize to electric current and voltage time, the SE pin of this electric current and voltage chip U1 after testing carries out being transferred to after high impedance transformation output circuit output 12V direct voltage directly for single-chip microcomputer is powered through resistance R32 after exporting and also present back voltage collection circuit.
During operation, brightness impression device of the present invention have employed APDS-9002 brightness impression device, and the accuracy that this APDS-9002 brightness impression device gathers luminance signal is strong.Described brightness impression device is for gathering the luminance signal of LED working region, and gathered luminance signal also can be converted to current signal transfer to single-chip microcomputer by this brightness impression device.Store brightness reference point in described single-chip microcomputer, after comparing to the brightness value stored after the current signal that brightness impression device transmits is converted to data-signal by this single-chip microcomputer, export corresponding control signal to switching circuit.Described switching circuit exports corresponding electric current to three line filtering drive amplification circuit according to the different control signal that single-chip microcomputer transmits, and described three line filtering drive amplification circuit carry out filter and amplification to the electric current of switch circuit transmission and export the brightness of corresponding drive current to LED and regulate.Switching circuit in the present invention is prior art.
When the brightness value of the LED working region that brightness impression device collects is higher than the brightness value stored in single-chip microcomputer, single-chip microcomputer output LOW current control signal is to switching circuit, now, switching circuit then exports corresponding low current to three line filtering drive amplification circuit according to the low current control signal of single-chip microcomputer transmission, this three lines filtering drive amplification circuit then exports low drive current simultaneously makes the brightness of LED reduce, the brightness of LED is increased, makes the brightness of LED consistent with the brightness value stored in single-chip microcomputer.Otherwise, when the brightness value of the LED working region that brightness impression device collects is lower than the brightness value stored in single-chip microcomputer, single-chip microcomputer output HIGH current control signal is to switching circuit, now, switching circuit then exports corresponding high electric current three line filtering drive amplification circuit according to the high current controling signal of single-chip microcomputer transmission, this three lines filtering drive amplification circuit then exports high drive current makes the brightness of LED increase, and makes the brightness of LED consistent with the brightness value stored in single-chip microcomputer.
Therefore, the energy-saving control system of LED of the present invention the change of environmentally brightness can export different electric currents, thus achieves people to the requirement of LED in energy-conservation.
As mentioned above, just the present invention can well be realized.
Claims (9)
1. based on the energy-saving control system of the Intelligent LED lamp of constant current current rectifying and wave filtering circuit, primarily of single-chip microcomputer, power supply, the switching circuit be all connected with single-chip microcomputer, luminance sensor, the LED be connected with switching circuit, and be serially connected in three line filtering drive amplification circuit compositions between LED and switching circuit; It is characterized in that: between power supply and single-chip microcomputer, be also serially connected with constant current current rectifying and wave filtering circuit, described constant current current rectifying and wave filtering circuit is then by the voltage collection circuit be connected with power supply, the current detection circuit be connected with voltage collection circuit, and the transformation output circuit be connected with current detection circuit with voltage collection circuit respectively forms; The output of described transformation output circuit is connected with single-chip microcomputer.
2. the energy-saving control system of the Intelligent LED lamp based on constant current current rectifying and wave filtering circuit according to claim 1, it is characterized in that, described voltage collection circuit is by diode rectifier U2, triode VT3, one end is connected with one of them input of diode rectifier U2, the resistance R20 of the input of the common coating-forming voltage Acquisition Circuit of another input of the other end and diode rectifier U2, positive pole is connected with the cathode output end of diode rectifier U2, the polar capacitor C9 that negative pole is connected with the cathode output end of diode rectifier U2, positive pole is connected with the positive pole of polar capacitor C9 after inductance L through resistance R22 in turn, the polar capacitor C10 that negative pole is connected with the negative pole of polar capacitor C9 after resistance R21, P pole is connected with the tie point of inductance L with resistance R22, the diode D7 that N pole is connected with the negative pole of polar capacitor C10 after resistance R23, and one end is connected with the P pole of diode D7, the resistance R32 that the other end is connected with the base stage of triode VT3 forms, the emitter of described triode VT3 is connected with the negative pole of polar capacitor C10, the emitter of described triode VT3 and the P of diode the D7 extremely common output of coating-forming voltage Acquisition Circuit, the grounded collector of its triode VT3.
3. the energy-saving control system of the Intelligent LED lamp based on constant current current rectifying and wave filtering circuit according to claim 2, it is characterized in that, described current detection circuit is by detection chip U1, triode VT4, triode VT5, P pole is connected with the VIN pin of detection chip U1 after resistance R25 through resistance R24 in turn, the diode D8 that N pole is connected with the collector electrode of triode VT5, negative pole is connected with the emitter of triode VT5, the polar capacitor C12 that positive pole is connected with the SE pin of detection chip U1 after resistance R28, N pole is connected with the base stage of triode VT4, the diode D9 that P pole is connected with the SET pin of detection chip U1 after resistance R27, positive pole is connected with the collector electrode of triode VT5, the polar capacitor C11 that negative pole is connected with the LX pin of detection chip U1 after resistance R29, one end is connected with the collector electrode of triode VT4, the resistance R30 that the other end is connected with the negative pole of polar capacitor C11, and one end is connected with the GND pin of detection chip U1, the resistance R26 of other end ground connection forms, the base stage of described triode VT5 is connected with the emitter of triode VT3, the emitter of described triode VT4 is as output, its grounded collector of current detection circuit.
4. the energy-saving control system of the Intelligent LED lamp based on constant current current rectifying and wave filtering circuit according to claim 3, it is characterized in that, described transformation output circuit is by transformer T, negative pole is connected with the non-same polarity of the former limit inductance coil of transformer T, the polar capacitor C14 that positive pole is connected with the Same Name of Ends of the former limit inductance coil of transformer T, positive pole is connected with the Same Name of Ends of the former limit inductance coil of transformer T, the polar capacitor C13 that negative pole is connected with the emitter of triode VT4 after resistance R31, one end is connected with the negative pole of polar capacitor C14, the resistance R33 that the other end is connected with the positive pole of polar capacitor C14, P pole is connected with the Same Name of Ends of the secondary inductance coil of transformer T, the diode D10 that N pole is connected with the non-same polarity of the secondary inductance coil of transformer T after polar capacitor C16, and negative pole is connected with the N pole of diode D10, the polar capacitor C15 that positive pole is connected with the Same Name of Ends of the secondary inductance coil of transformer T after resistance R34 forms, the non-same polarity of former limit inductance coil of described transformer T is connected with the P pole of diode D7, and the non-same polarity of the secondary inductance coil of this transformer T and the N of diode D10 form the output of transformation output circuit extremely jointly.
5. the energy-saving control system of the Intelligent LED lamp based on constant current current rectifying and wave filtering circuit according to claim 4, it is characterized in that, described three line filtering drive amplification circuit are by integrated chip U, the current filtering circuit be all connected with integrated chip U and current driving circuit, and the operational amplification circuit be connected between current filtering circuit and current driving circuit forms.
6. the energy-saving control system of the Intelligent LED lamp based on constant current current rectifying and wave filtering circuit according to claim 5, it is characterized in that, described current filtering circuit is by triode VT1, positive pole is connected with the CLK pin of integrated chip U, negative pole is in turn through polar capacitor C1 that resistance R4 is connected with the OPIN pin of integrated chip U after resistance R5, P pole is connected with the base stage of triode VT1 after resistance R15, the diode D1 that N pole is connected with the AL pin of integrated chip U after resistance R6, positive pole is connected with the SW pin of integrated chip U, the polar capacitor C6 that negative pole is connected with the emitter of triode VT1, one end is connected with the CLK pin of integrated chip U, the IN pin of the other end and integrated chip U forms the resistance R1 of the input of current filtering circuit jointly, positive pole is connected with the CLK pin of integrated chip U, the polar capacitor C2 that negative pole is connected with the IN pin of integrated chip U, and positive pole is connected with the IN pin of integrated chip U after resistance R3, the polar capacitor C3 that negative pole jointly forms the output of current filtering circuit with the base stage of triode VT1 after resistance R2 forms, the OPIN pin of described integrated chip U is connected with the positive pole of polar capacitor C6, the collector electrode of described triode VT1 is connected, its base stage as current filtering circuit output and be connected with current driving circuit.
7. the energy-saving control system of the Intelligent LED lamp based on constant current current rectifying and wave filtering circuit according to claim 6, it is characterized in that, described operational amplification circuit is by amplifier P1, polar capacitor C5, N pole is connected with the output of amplifier P1, P pole is in turn through diode D2 that resistance R7 is connected with the electrode input end of amplifier P1 after polar capacitor C4, P pole is connected with the electrode input end of amplifier P1 after resistance R17, the diode D6 that the output that N pole jointly forms operational amplification circuit with the negative pole of polar capacitor C5 after resistance R18 is connected with current driving circuit, and one end is connected with the output of amplifier P1, the resistance R10 that the other end is connected with the positive pole of polar capacitor C5 forms, the negative input of described amplifier P1 is connected with the negative pole of polar capacitor C3 after resistance R2.
8. the energy-saving control system of the Intelligent LED lamp based on constant current current rectifying and wave filtering circuit according to claim 7, it is characterized in that, current driving circuit is by triode VT2, amplifier P2, negative pole is connected with the negative input of amplifier P2, the polar capacitor C7 that positive pole is connected with the OUT pin of integrated chip U after resistance R8, P pole is connected with the base stage of triode VT2 after resistance R9 through resistance R12 in turn, the diode D3 that N pole is connected with the electrode input end of amplifier P2 after resistance R16, P pole is connected with the electrode input end of amplifier P2, the diode D4 that N pole is connected with the base stage of triode VT1, positive pole is connected with the N pole of diode D3, negative pole is in turn through polar capacitor C8 that resistance R13 is connected with the output of amplifier P2 after resistance R14, and P pole is connected with the base stage of triode VT2 after resistance R11, the diode D5 that the output of N pole and amplifier P2 forms the output of current driving circuit jointly forms, the emitter of described triode VT2 is connected with the negative pole of polar capacitor C5, its grounded collector, the negative input of described amplifier P2 is connected with the N pole of diode D6 after resistance R18.
9. the energy-saving control system of the Intelligent LED lamp based on constant current current rectifying and wave filtering circuit according to claim 8, is characterized in that, described integrated chip U is MAX291 integrated chip; Described detection chip U1 is SOT23-5 integrated chip.
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| CN201510922053.3A CN105357843A (en) | 2015-12-11 | 2015-12-11 | Intelligent LED lamp energy-saving control system based on constant-current rectification filter circuit |
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| CN201510922053.3A CN105357843A (en) | 2015-12-11 | 2015-12-11 | Intelligent LED lamp energy-saving control system based on constant-current rectification filter circuit |
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| KR100706255B1 (en) * | 2005-07-26 | 2007-04-13 | 진영수 | An apparatus for controlling a sensor light |
| CN203243565U (en) * | 2013-05-06 | 2013-10-16 | 浙江工贸职业技术学院 | Multifunctional LED desk lamp |
| CN103889124A (en) * | 2014-03-27 | 2014-06-25 | 深圳市明微电子股份有限公司 | LED light-emitting device, LED driving circuit and constant-current driving controller of LED driving circuit |
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| KR100706255B1 (en) * | 2005-07-26 | 2007-04-13 | 진영수 | An apparatus for controlling a sensor light |
| CN1893752A (en) * | 2006-05-09 | 2007-01-10 | 上海维同照明电器有限公司 | LED constant-flow driver |
| CN203243565U (en) * | 2013-05-06 | 2013-10-16 | 浙江工贸职业技术学院 | Multifunctional LED desk lamp |
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