CN203934080U - With the LED lamp driving power source of timing function - Google Patents

With the LED lamp driving power source of timing function Download PDF

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Publication number
CN203934080U
CN203934080U CN201420367089.0U CN201420367089U CN203934080U CN 203934080 U CN203934080 U CN 203934080U CN 201420367089 U CN201420367089 U CN 201420367089U CN 203934080 U CN203934080 U CN 203934080U
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China
Prior art keywords
led lamp
control chip
power supply
circuit
drive circuit
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CN201420367089.0U
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林军
潘成前
陈斌
环要武
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CHANGZHOU JUTAI ELECTRONIC Co Ltd
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CHANGZHOU JUTAI ELECTRONIC Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40Control techniques providing energy savings, e.g. smart controller or presence detection

Abstract

With a LED lamp driving power source for timing function, the output of its control circuit is connected with the input of drive circuit, and the output of drive circuit is used for connecting LED lamp; Described control circuit comprises control chip, crystal oscillator, trigger switch and voltage stabilizing circuit, the power positive end of control chip is connected with the positive pole of DC power supply by voltage stabilizing circuit, the two ends of crystal oscillator are connected to two clock signal terminals of control chip, and the two ends of trigger switch are connected between the trigger end and ground of control chip; One or two output of control chip is connected with the input of described drive circuit.Technique effect of the present utility model is: can make power supply at a fixed time section open, section is closed at a fixed time, and without manual intervention, having reached is the object that energy-conservation manpower-free again safeguards.Utilize the luminous of pulse width control LED, can change irregularly and diversified light-emitting mode, there is practical function, feature simple in structure, with low cost.

Description

With the LED lamp driving power source of timing function
Technical field
The utility model relates to LED light field, in particular to a kind of LED driving lamp and LED light fixture.
Background technology
Global energy crisis causes people to energy-conservation tight demand, and LED lamp efficiency is high, and energy-saving effect is obvious, especially obtains everybody attention.At present LED lamp driving power source is on the market general all without timing function, is usually bright light whole night when its work, and energy waste is very large, wants energy-conservation words manually to go to close, very trouble.
Summary of the invention
The purpose of this utility model is to provide a kind of drive electric power unit of LED lamp, often bright light whole night to solve in the process of the external LED lamp of drive unit work of existing LED lamp, therefore waste a large amount of electric energy, and have special people to go to be responsible for the problem that switch bothers very much.
The technical solution of the utility model is: a kind of LED lamp driving power source with timing function, comprise DC power supply, control circuit and drive circuit, and the output of control circuit is connected with the input of drive circuit, and the output of drive circuit is used for connecting LED lamp; DC power supply is to control circuit and drive circuitry, it is characterized in that, described control circuit comprises control chip, crystal oscillator, trigger switch and voltage stabilizing circuit, the power positive end of control chip is connected with the positive pole of DC power supply by voltage stabilizing circuit, the two ends of crystal oscillator are connected to two clock signal terminals of control chip, and the two ends of trigger switch are connected between the trigger end and ground of control chip; One or two output of control chip is connected with the input of described drive circuit.
Technique effect of the present utility model is: can make power supply at a fixed time section open, section is closed at a fixed time, and without manual intervention, having reached is the object that energy-conservation manpower-free again safeguards.Utilize the luminous of pulse width control LED, can change irregularly and diversified light-emitting mode, there is practical function, feature simple in structure, with low cost.
Brief description of the drawings
Fig. 1 shows general structure block diagram of the present utility model;
Fig. 2 shows control circuit figure of the present utility model;
Fig. 3 shows the circuit diagram of the application example of the drive circuit of the utility model single channel output;
Fig. 4 shows the circuit diagram of the external LED lamp string of Fig. 3;
Fig. 5 shows the circuit diagram of the application example of the drive circuit of the utility model doubleway output;
Fig. 6 shows the circuit diagram of the external LED lamp string of Fig. 5;
Fig. 7 shows the circuit diagram of the application example of the drive circuit of normal bright output of the present utility model;
Fig. 8 shows the circuit diagram of the external LED lamp string of Fig. 7;
Fig. 9 is the circuit diagram of an embodiment of DC power supply of the present utility model;
Figure 10 is the pwm signal waveform figure of chip U2 output of the present utility model.
Embodiment
Referring to Fig. 1, a kind of LED lamp driving power source A with timing function of the utility model, comprise DC power supply 1, control circuit 2 and drive circuit 3 with timing function, the output of control circuit 2 is connected with the input of drive circuit 3, and the output of drive circuit 3 is used for connecting LED lamp.DC power supply 1 powers to control circuit 2 and drive circuit 3.
Comprise control chip U2, crystal oscillator XL1, trigger switch SW and voltage stabilizing circuit referring to the control circuit 2 described in Fig. 2, the power positive end of control chip U2 is connected with the positive pole of DC power supply 1 by voltage stabilizing circuit, the two ends of crystal oscillator XL1 are connected to two clock signal terminals (2,4 pin) of control chip U2, and the two ends of trigger switch SW are connected between the trigger end (1 pin) and ground of control chip U2; One or two output (6,7 pin) of control chip U2 is connected with the input of described drive circuit 3.
Described voltage stabilizing circuit is made up of voltage regulation resistance R12, electric capacity of voltage regulation C6 and voltage stabilizing didoe ZD1, the upper end of voltage regulation resistance R12 is connected with the cathode output end of this DC power supply 1, electric capacity of voltage regulation C6 and voltage stabilizing didoe ZD1 are connected in parallel between the lower end and ground of voltage regulation resistance R12, and voltage stabilizing didoe ZD1 is Opposite direction connection (plus earth); The lower end of voltage regulation resistance R12 is also connected with the power positive end (5 pin) of control chip U2.
Control chip U2 is a kind of microprocessor of controlling LED lamp that is specifically designed to, and model is JT-022, and manufacturer is: Depew, Shenzhen Microtronics A/S.Its function is to provide accurate timing and LED lamp drives signal.The two-way output signal that two output output pulse widths of control chip U2 constantly change, remove to control described drive circuit 3, once, the duty ratio of control chip U2 output rectangular pulse signal just changes once the every triggering of trigger switch SW, makes LED lamp illumination effect that corresponding change occur.Realize timing switch to LED lamp and the adjusting of brightness, thereby avoided the trouble of manual control switch's lamp, saved electric energy.
Referring to Fig. 3, show the circuit diagram of the application example of the drive circuit 3 of the utility model single channel output, this drive circuit comprises two base resistance R13 and R14, two PNP triode Q1 and Q3, two NPN triode Q2 and Q4, two upper offset resistance R 15B and R16B and two below-center offset resistance R 15 and R16, one end of two base resistance R13, R14 is connected with two outputs (6,7 pin) of described control chip U2 respectively, and the other end of R13, R14 is connected with the base stage of two NPN triode Q2, Q4 respectively; The corresponding connection of collector electrode of the collector electrode of two PNP triode Q1, Q3 and two NPN triode Q2, Q4, and as two outputs (lead-out terminal 1 and 2) that connect LED lamp.Between the base stage of two PNP triode Q1, Q3 and emitter, is respectively connected upper offset resistance R 15B, a R16B, between the base stage of two PNP triode Q1, Q3 and collector electrode, distinguishes below-center offset resistance R 15 of mutual interconnection, R16 (being that the two ends that the two ends of R15 are connected to R16 between the base stage of Q1 and the collector electrode of Q3 are connected between the base stage of Q3 and the collector electrode of Q1); The emitter of two PNP triode Q1, Q3 is connected with the positive pole of DC power supply 1, the grounded emitter of two NPN triode Q2, Q4.
The output output positive negative pulse stuffing of the drive circuit 3 shown in Fig. 3, is suitable for the LED lamp string shown in Fig. 4, and this lamp string has the opposite polarity LED Series lamp string of two-way, exports under the driving of positive negative pulse stuffing alternately luminous at drive circuit 3.
Referring to Fig. 5 and Fig. 6, the circuit of the application example of the drive circuit of a kind of doubleway output of the utility model, this drive circuit 3 comprises two base resistance R13, R14 and two NPN triode Q2, Q4, one end of two base resistance R13, R14 is connected with two outputs (6,7 pin) of described control chip U2 respectively, and the other end of R13, R14 is connected with the base stage of two NPN triode Q2, Q4 respectively.The collector electrode of two NPN triode Q2, Q4 is as two outputs (lead-out terminal 1,2) that connect LED lamp string negative pole, and the positive pole of described DC power supply 1 is as the output (lead-out terminal 0) that connects LED lamp string positive pole; The grounded emitter of two NPN triode Q2, Q4.
Above-mentioned drive circuit is suitable for the two string LED lamp strings (two cluster of lamps, ornamental connection in series-parallel) that the polarity shown in connection layout 6 is identical, the positive pole of two string LED lamp strings is connected with the positive pole (lead-out terminal 0) of DC power supply 1 by a current-limiting resistance, and the negative pole of two string LED lamp strings is connected with lead-out terminal 1,2 respectively.Two string LED lamp strings are luminous under the control respectively of control chip U2 and two pulse signals, can be simultaneously luminous or alternately luminous, do not affect each other.
Referring to Fig. 7 and Fig. 8, the drive circuit 3 of this embodiment comprises a base resistance R14 and a NPN triode Q2, one end of base resistance R14 is connected with an output of described control chip U2, the other end is connected with the base stage of NPN triode Q2 respectively, the grounded emitter of NPN triode Q2; The positive pole of the collector electrode of NPN triode Q2 and described DC power supply 1 is as being connected two outputs of LED lamp string.
The output (between lead-out terminal 1,0) of this drive circuit a string LED lamp string of can only connecting, as long as drive circuit 3 has output of pulse signal, LED lamp string will be luminous.
Referring to Fig. 9, DC power supply 1 of the present utility model adopts single-ended flyback direct-current switch power supply, and the control chip U1 of this Switching Power Supply adopts PWM microprocessor, and model comprises JT010, SF6070, SF5928 and SN25 etc., and producer is respectively Sai Wei, high precious.Concrete circuit, referring to Fig. 9, belongs to routine techniques.
The operation principle of DC power supply 1 is: L, N incoming transport power supply, after the pi type filter that resistance fuse FR1, rectifier bridge BD1 and capacitor C 1 and C2, inductance L 1 form, can obtain a direct voltage, this direct voltage is added on transformer T1 by switching tube Q1; Resistance R 9, R10 are responsible for charging to capacitor C 3, capacitor C 3 is connected to the power end of control chip U1, be charged to after a threshold value, control chip U1 starts working, the base stage of the drive end connecting valve pipe Q1 of control chip U1, control switch pipe Q1 turn-on and turn-off, when switching tube Q1 conducting, direct voltage after rectification is added on transformer T1, transformer T1 storage power, when switching tube Q1 turn-offs, transformer T1 releases energy by secondary rectifying tube D7, rectifying tube D7 and capacitor C 7 form output rectifier and filter, in capacitor C 7, are output dc voltage.
The light emitting control principle of the utility model LED lamp is (in conjunction with Fig. 5 and Figure 10):
1, the duty ratio of the pulse signal of two of control chip U2 outputs has determined the illumination effect of two string LED lamps, and two LED lamp strings are respectively with duty ratio D1, D2 work, and the relation of duty ratio and the brightness of LED lamp is that duty ratio is larger, and LED lamp is brighter; The maximum Dmax of D1, D2; D1, D2 value are all between 0 to Dmax, and different values can produce different lighting effects.While being Dmax such as D1, D2, two cluster of lamps, ornamental are the brightest; D1, D2 are respectively Dmax, at 0 o'clock, and two cluster of lamps, ornamental one are bright one dark; D1, D2 are respectively 0,0 o'clock, and two cluster of lamps, ornamental are entirely dark; The value of cycle T with normal when bright human eye do not produce stroboscopic and be advisable.
2,, when " shut " mode", D1, D2 are 0 (U2 exports 0 current potential)
3, the timing accuracy of timing function is given security by the precision of crystal oscillator XL1.After power supply start, control chip U2 starts timing, and DC power supply 1 enters routine work pattern simultaneously, after a few hours, DC power supply 1 enters " shut " mode", then after a few hours, DC power supply 1 enters routine work pattern again, and get back to the operating state before closing, so move in circles.

Claims (7)

1. the LED lamp driving power source with timing function, comprise DC power supply (1), control circuit (2) and drive circuit (3), the output of control circuit (2) is connected with the input of drive circuit (3), and the output of drive circuit (3) is used for connecting LED lamp; DC power supply (1) is given control circuit (2) and drive circuit (3) power supply, it is characterized in that, described control circuit (2) comprises control chip (U2), crystal oscillator (XL1), trigger switch (SW) and voltage stabilizing circuit, the power positive end of control chip (U2) is connected with the positive pole of DC power supply by voltage stabilizing circuit, the two ends of crystal oscillator (XL1) are connected to two clock signal terminals of control chip (U2), and the two ends of trigger switch (SW) are connected between the trigger end and ground of control chip (U2); One or two output of control chip (U2) is connected with the input of described drive circuit (3).
2. the LED lamp driving power source with timing function according to claim 1, it is characterized in that, described voltage stabilizing circuit is made up of voltage regulation resistance (R12), electric capacity of voltage regulation (C6) and voltage stabilizing didoe (ZD1), the upper end of voltage regulation resistance (R12) is connected with the cathode output end of this DC power supply (1), electric capacity of voltage regulation (C6) and voltage stabilizing didoe (ZD1) are connected in parallel between the lower end and ground of voltage regulation resistance (R12), and voltage stabilizing didoe (ZD1) is Opposite direction connection; The lower end of voltage regulation resistance (R12) is also connected with the power positive end of control chip (U2).
3. the LED lamp driving power source with timing function according to claim 1, is characterized in that, described DC power supply adopts single-ended reverse exciting contactor power supply.
4. the LED lamp driving power source with timing function according to claim 1, it is characterized in that, described drive circuit comprises two base resistance (R13, R14), two PNP triode (Q1, Q3), two NPN triode (Q2, Q4), two upper offset resistance (R15B, R16B), and two below-center offset resistance (R15, R16), two base resistance (R13, R14) one end is connected with two outputs of described control chip (U2) respectively, the other end respectively with two NPN triode (Q2, Q4) base stage connects, the corresponding connection of collector electrode of the collector electrode of two PNP triodes (Q1, Q3) and two NPN triodes (Q2, Q4), and as two outputs that connect LED lamp, between the base stage of two PNP triodes (Q1, Q3) and emitter, is respectively connected a upper offset resistance (R15B, R16B), between the base stage of two PNP triodes (Q1, Q3) and collector electrode, distinguishes below-center offset resistance of mutual interconnection (R15, R16), the emitter of two PNP triodes (Q1, Q3) is connected with the positive pole of DC power supply, the grounded emitter of two NPN triodes (Q2, Q4).
5. the LED lamp driving power source with timing function according to claim 1, it is characterized in that, described drive circuit comprises two base resistances (R13, R14) and two NPN triodes (Q2, Q4), one end of two base resistances (R13, R14) is connected with two outputs of described control chip (U2) respectively, and the other end is connected with the base stage of two NPN triodes (Q2, Q4) respectively; The collector electrode of two NPN triodes (Q2, Q4) is as two outputs that connect LED lamp string negative pole, and the positive pole of described DC power supply is as the output that connects LED lamp string positive pole; The grounded emitter of two NPN triodes (Q2, Q4).
6. the LED lamp driving power source with timing function according to claim 1, it is characterized in that, described drive circuit comprises a base resistance (R14) and a NPN triode (Q2), one end of base resistance (R14) is connected with an output of described control chip (U2), the other end is connected with the base stage of NPN triode (Q2) respectively, the grounded emitter of NPN triode (Q2); The positive pole of the collector electrode of NPN triode (Q2) and described DC power supply is as being connected two outputs of LED lamp string.
7. the LED lamp driving power source with timing function according to claim 1, is characterized in that, described control chip (U2) is adopted as single-chip microcomputer or LED controls application-specific integrated circuit (ASIC).
CN201420367089.0U 2014-07-04 2014-07-04 With the LED lamp driving power source of timing function Active CN203934080U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202018106452U1 (en) 2018-09-14 2018-11-30 Changzhou Jutai Electronic Co., Ltd. Power source of a lamp
CN110507913A (en) * 2019-09-12 2019-11-29 邹涛 A kind of rhinitis phototherapy instrument control circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202018106452U1 (en) 2018-09-14 2018-11-30 Changzhou Jutai Electronic Co., Ltd. Power source of a lamp
CN110507913A (en) * 2019-09-12 2019-11-29 邹涛 A kind of rhinitis phototherapy instrument control circuit

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