CN204634098U - A kind of colour temperature segmented adjustment LED - Google Patents
A kind of colour temperature segmented adjustment LED Download PDFInfo
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- CN204634098U CN204634098U CN201520261925.1U CN201520261925U CN204634098U CN 204634098 U CN204634098 U CN 204634098U CN 201520261925 U CN201520261925 U CN 201520261925U CN 204634098 U CN204634098 U CN 204634098U
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Abstract
The utility model provides a kind of colour temperature segmented adjustment LED, comprise the current rectifying and wave filtering circuit be electrically connected successively, controlling circuit of voltage regulation, PWM pulse width modulating chip, white LED lamp pearl, the parallel connection of yellow light LED lamp pearl thereon, also comprise segment control unit, segment control unit comprises transformer, sectional dimming control chip, switch sample circuit, White LED Drive and yellow light LED drive circuit, warm white power ascension circuit, the utility model structural principle is simple, adopt 90V-260V, 50HZ Width funtion inputs, filtering electrolysis is cancelled at power end, the power factor that PFC keeps higher can be made, LED colour temperature can be realized simultaneously, power adjustments, when warm white power increases, fan can be realized again and automatically start cooling to protect LED.
Description
technical field:
The utility model relates to LED field, particularly relates to colour temperature segmented adjustment LED.
background technology:
LED, light-emitting diode is a kind of can be the solid-state semiconductor device of visible ray by electric energy conversion, and it directly can be converted into light electricity.The heart of LED is the wafer of a semiconductor, and one end of wafer is attached on a support, and one end is negative pole, and the other end connects the positive pole of power supply, makes whole wafer by epoxy encapsulation.Semiconductor wafer is made up of two parts, and a part is P type semiconductor, and inside it, occupy an leading position in hole, and the other end is N type semiconductor, at this side mainly electronics.But time these two kinds of semiconductors couple together, between them, just form a P-N junction.When electric current acts on this wafer by wire time, electronics will be pushed to P district, and in P district, electronics is with hole-recombination, then will send energy with the form of photon, the principle of LED luminescence that Here it is.And the wavelength of light i.e. the color of light, be determined by the material forming P-N junction.
LED lamp is widely used as a kind of energy-conserving light source, and consumer has different requirement at different time to colour temperature, but prior art is more single, can not adjust flexibly as required; The heat radiation of LED is very passive now simultaneously, mainly through heat abstractor, the heat derivation that LED produces is gone; In prior art, heat abstractor is fixed, and heat-sinking capability is limited, and when power increases, heat increases simultaneously, because prior art effectively can not solve heat radiation, limits the mixing application of multiple color temperatures.
utility model content:
In order to solve the problem, the utility model provides a kind of colour temperature segmented adjustment LED, and the technical program structural principle is simple, can realize LED colour temperature, Power auto-adjustment, fan and automatically start cooling, technique effect that power factor (PF) factor is high:
Colour temperature segmented adjustment LED, mainly comprise white LED lamp pearl, yellow light LED lamp pearl, fan and segmentation controller, segmentation controller comprises transformer, PWM pulse width modulating chip, sectional dimming control chip, also comprises current rectifying and wave filtering circuit, controlling circuit of voltage regulation, switch sample circuit, white light and yellow light LED drive circuit, warm white power ascension circuit and warm white power ascension and starts fan control circuitry.
As preferably, current rectifying and wave filtering circuit comprises diode A, diode B, diode C, diode D and electric capacity A, and power input is by switch series connection fuse access current rectifying and wave filtering circuit input.
As preferably, PWM pulse width modulating chip vdd terminal one pin is held between two pin with GND and is connected electric capacity B and ground connection, COMP holds tripod to connect electric capacity C and ground connection, GATE holds four pin to connect field-effect transistor A grid by resistance B, CS holds five pin contact resistance D one end respectively, diode F negative pole contact resistance D one end, transformer one end, resistance E one end, the resistance E other end is connected PWM pulse width modulating chip ZCD with resistance F one end and holds six pin, the resistance D other end is connected with field-effect transistor A source electrode, the resistance F other end is connected electrochemical capacitor A and ground connection with the transformer other end, diode E anode connects electrochemical capacitor A positive pole, negative electrode contact resistance A one end.
As preferably, controlling circuit of voltage regulation is made up of diode H, triode C, resistance I, electrochemical capacitor B, voltage-stabiliser tube, switch sample circuit is made up of resistance H, resistance J, sectional dimming control chip PO holds a pin connecting valve sample circuit, vdd terminal five pin connecting triode C emitter, triode C base stage connects voltage-stabiliser tube and ground connection, and resistance I is connected between triode C collector electrode and base stage, triode C collector electrode meets electrochemical capacitor B and ground connection, and sectional dimming control chip GND holds two pin ground connection.
As preferably, white light or yellow light LED drive circuit are made up of resistance M, resistance N, field-effect transistor B, field-effect transistor C, resistance N one end connection segment brightness adjustment control chip P2 holds four pin, one end connects field-effect transistor B grid, field-effect transistor B drains and connects white LED lamp pearl, field-effect transistor B source ground, resistance M one end connection segment brightness adjustment control chip P1 holds tripod, one end connects field-effect transistor C grid, field-effect transistor C drains and connects yellow light LED lamp pearl, field-effect transistor C source ground.
As preferably, warm white power ascension circuit comprises diode I, diode J, triode A, resistance C, resistance G, diode I positive pole connects yellow light LED lamp pearl, diode I negative pole connecting triode A base stage, diode J positive pole connects white LED lamp pearl, diode J negative pole is connected with diode I negative pole, resistance C is connected between triode A base stage and emitter, resistance G connecting triode A base stage ground connection.
As preferably, warm white power ascension starts fan control circuitry and comprises transformer secondary coil, diode G, electrochemical capacitor C, resistance K, triode B, resistance L, diode I, diode J, triode B emitter connects diode G, transformer secondary coil ground connection successively, electrochemical capacitor C positive pole connecting triode B emitter, minus earth, resistance K is connected between triode B base stage and electrochemical capacitor C negative pole, fan one end connecting triode B collector electrode, the other end is connected with resistance L one end, resistance L other end ground connection.
The beneficial effects of the utility model are: the utility model adopts 90V-260V; 50HZ Width funtion inputs; filtering electrolysis is cancelled at power end; the power factor that PFC keeps higher can be made; adopt white light and yellow light LED drive circuit and warm white power ascension circuit can realize LED colour temperature, power adjustments; simultaneously when warm white power increases, fan can be realized again and automatically start cooling to protect LED.
accompanying drawing illustrates:fig. 1 is circuit theory diagrams of the present utility model.
embodiment:for making goal of the invention of the present utility model, technical scheme and advantage clearly, below in conjunction with accompanying drawing, execution mode of the present utility model is described in further detail.
As shown in Figure 1, colour temperature segmented adjustment LED, mainly comprise white LED lamp pearl 1, yellow light LED lamp pearl 2, fan 3 and segmentation controller, segmentation controller comprises transformer T, PWM pulse width modulating chip U, sectional dimming control chip V, also comprise current rectifying and wave filtering circuit 4, controlling circuit of voltage regulation 5, switch sample circuit 6, white light and yellow light LED drive circuit 7, warm white power ascension circuit 8 and warm white power ascension start fan control circuitry 9, current rectifying and wave filtering circuit 4 comprises diode A 1d, diode B 2d, diode C 3d, diode D 4d and electric capacity A 1b, power input accesses current rectifying and wave filtering circuit 4 input by the K switch 1 fuse F1 that connects, PWM pulse width modulating chip U vdd terminal one pin U1 and GND holds between two pin U2 and connects electric capacity B 2b and ground connection, COMP holds tripod U3 to connect electric capacity C 3b and ground connection, GATE holds four pin U4 to connect field-effect transistor A 1e grid by resistance B 2a, CS holds five pin U5 contact resistance D 4a one end respectively, diode F 6d negative pole contact resistance D 4a one end, transformer T primary coil T1 one end, resistance E 5a one end, the resistance E 5a other end is connected PWM pulse width modulating chip U ZCD and holds six pin U6 with resistance F 6a one end, the resistance D 4a other end is connected with field-effect transistor A 1e source electrode, the resistance F 6a other end is connected electrochemical capacitor A 1c and ground connection with the transformer T primary coil T1 other end, diode E 5d anode connects electrochemical capacitor A 1c positive pole, negative electrode contact resistance A 1a one end, PWM pulse width modulating chip U is by changing pulse duration to control output voltage, its output frequency is controlled by the change cycle, and the change of output frequency is by realizing the modulation period changing this this pulse, like this, pressure regulation and frequency modulation two is made to act on cooperation consistent, and have nothing to do with intermediate DC link, thus governing speed is accelerated, improve dynamic property, Constant Direct Current power supply is only needed to power owing to exporting constant amplitude pulse, the power factor of grid side is improved greatly.
Controlling circuit of voltage regulation 5 is by diode H 8d, triode C 3f, resistance I 9a, electrochemical capacitor B 2c, voltage-stabiliser tube ZD1 forms, switch sample circuit 6 is by resistance H 8a, resistance J 10a forms, sectional dimming control chip V PO holds a pin P1 connecting valve sample circuit 6, vdd terminal five pin V5 connecting triode C 3f emitter, triode C 3f base stage connects voltage-stabiliser tube ZD1 and ground connection, resistance I 9a is connected between triode C 3f collector electrode and base stage, triode C 3f collector electrode meets electrochemical capacitor B 2c and ground connection, sectional dimming control chip V GND holds two pin V2 ground connection, sectional dimming control chip V can reach the object of light modulation, without the need to extra Light modulating device, each LED all can realize light modulation, in full voltage range, under no matter being operated in which kind of brightness, all can realize high efficiency and high power factor.
White light and yellow light LED drive circuit 7 are by resistance M 13a, resistance N 14a, field-effect transistor B 2e, field-effect transistor C 3e forms, resistance N 14a one end connection segment brightness adjustment control chip V P2 holds four pin V4, one end connects field-effect transistor B 2e grid, field-effect transistor B 2e drains and connects white LED lamp pearl 1, field-effect transistor B 2e source ground, resistance M 13a one end connection segment brightness adjustment control chip V P1 holds tripod V3, one end connects field-effect transistor C 3e grid, field-effect transistor C 3e drains and connects yellow light LED lamp pearl 2, field-effect transistor C 3e source ground.
Warm white power ascension circuit 8 comprises diode I 9d, diode J 10d, triode A 1f, resistance C 3a, resistance G 7a, diode I 9d positive pole connects yellow light LED lamp pearl 2, diode I 9d negative pole connecting triode A 1f base stage, diode J 10d positive pole connects white LED lamp pearl 1, diode J 10d negative pole is connected with diode I 9d negative pole, resistance C 3a is connected between triode A 1f base stage and emitter, resistance G 7a connecting triode A 1f base stage ground connection.
Start fan control circuitry 9 and comprise transformer T secondary coil T2, diode G 7d, electrochemical capacitor C 3c, resistance K 11a, triode B 2f, resistance L 12a, diode I 9d, diode J 10d, triode B 2f emitter connects diode G 7d successively, transformer T secondary coil T2 ground connection, electrochemical capacitor C 3c positive pole connecting triode B 2f emitter, minus earth, resistance K 11a is connected between triode B 2f base stage and electrochemical capacitor C 3c negative pole, fan 3 one end connecting triode B 2f collector electrode, the other end is connected with resistance L 12a one end, resistance L 12a other end ground connection.
Operation principle: when the closed interchange input of K switch 1, through diode A 1d, diode B 2d, diode C 3d, diode D 4d rectification is pulsating dc voltage, high direct voltage is obtained after absorbing subharmonic by electric capacity A 1b again, in the ideal case, the angle of flow of rectifier bridge should be 180 degree, but due to the effect of electric capacity A 1b, within the very short time close to peak values of ac voltage place, only just there is input current to charge to electric capacity A 1b through rectifier bridge, the half period of 50HZ alternating current is 10ms, the ON time of rectifier bridge is about 3ms, rectifier bridge is actual, and what pass through is short duration current, power to PWM pulse width modulating chip U vdd terminal one pin U1 through resistance A 1a and electric capacity B 2b storage capacitor, resistance E 5a, resistance F 6a holds six pin U6 to provide cut-off and the Continuity signal of field-effect transistor A 1e to respectively PWM pulse width modulating chip U ZCD, electric capacity C 3b is PWM pulse width modulating chip U matching capacitance, resistance D 4a is that constant current sample resistance meets PWM pulse width modulating chip U CS and holds five pin U5, PWM pulse width modulating chip U GATE holds four pin U4 to export and produces PWM pulse width modulation electrical current through transformer T primary coil T1 and electrochemical capacitor A 1c composition inverse-excitation type LED constant current power supply through resistance B 2a driving field-effect transistor A 1e, owing to eliminating filtering electrolysis at power end, make input envelope and input voltage substantially identical, namely PFC remains on higher power factor.K switch 1 first time, time closed, white LED lamp pearl 1 was bright separately; When K switch 1 second time is closed, yellow light LED lamp pearl 2 is bright separately; K switch 1 third time is time closed, bright the while of white LED lamp pearl 1, yellow light LED lamp pearl 2, and two color light synthesis sends warm white; because now multi color temperature lamp pearl is luminous, therefore power increases, and caloric value also synchronously increases; now fan starts cooling automatically, protection LED lamp bead.
Sectional dimming control chip is ripe chip in the market, directly can design use.
Above-described embodiment is preferred embodiment of the present utility model; it is not the restriction to technical solutions of the utility model; as long as without the technical scheme that creative work can realize on the basis of above-described embodiment, all should be considered as falling within the scope of the rights protection of the utility model patent.
Claims (8)
1. a colour temperature segmented adjustment LED, comprise the current rectifying and wave filtering circuit (4) be electrically connected successively, controlling circuit of voltage regulation (5), PWM pulse width modulating chip (U), white LED lamp pearl (1), yellow light LED lamp pearl (2) parallel connection thereon, it is characterized in that: also comprise segment control unit, described segment control unit comprises transformer (T), sectional dimming control chip (V), switch sample circuit (6), white light drive circuit (77) and yellow light LED drive circuit (7), warm white power ascension circuit (8) and startup fan control circuitry (9).
2. a kind of colour temperature segmented adjustment LED according to claim 1, it is characterized in that: described current rectifying and wave filtering circuit (4) comprises diode A(1d), diode B(2d), diode C(3d), diode D(4d) with electric capacity A(1b), power input accesses described current rectifying and wave filtering circuit (4) input by switch (K1) fuse (F1) of connecting.
3. a kind of colour temperature segmented adjustment LED according to claim 1, it is characterized in that: described PWM pulse width modulating chip (U) vdd terminal one pin (U1) and GND hold between two pin (U2) and be connected electric capacity B(2b) and ground connection, COMP holds tripod (U3) to connect electric capacity C(3b) and ground connection, GATE holds four pin (U4) by resistance B(2a) connect field-effect transistor A(1e) grid, CS holds five pin (U5) contact resistance D (4a) one end respectively, diode F (6d) negative pole contact resistance D (4a) one end, transformer (T) primary coil (T1) one end, resistance E (5a) one end, resistance E (5a) other end is connected described PWM pulse width modulating chip (U) ZCD and holds six pin (U6) with resistance F (6a) one end, resistance D (4a) other end is connected with field-effect transistor A (1e) source electrode, resistance F (6a) other end is connected electrochemical capacitor A(1c with transformer (T) primary coil (T1) other end) and ground connection, diode E (5d) anode connects electrochemical capacitor A (1c) positive pole, negative electrode contact resistance A (1a) one end.
4. a kind of colour temperature segmented adjustment LED according to claim 1, it is characterized in that: described yellow light LED drive circuit (7) is by resistance M (13a), resistance N (14a), field-effect transistor B (2e), field-effect transistor C (3e) forms, resistance N (14a) one end connects described sectional dimming control chip (V) P2 and holds four pin (V4), one end connects field-effect transistor B (2e) grid, field-effect transistor B (2e) drain electrode connects described white LED lamp pearl (1), field-effect transistor B (2e) source ground, resistance M (13a) one end connects described sectional dimming control chip (V) P1 and holds tripod (V3), one end connects field-effect transistor C (3e) grid, field-effect transistor C (3e) drain electrode connects described yellow light LED lamp pearl (2), field-effect transistor C (3e) source ground.
5. a kind of colour temperature segmented adjustment LED according to claim 1, it is characterized in that: described controlling circuit of voltage regulation (5) is by diode H (8d), triode C (3f), resistance I (9a), electrochemical capacitor B (2c), voltage-stabiliser tube (ZD1) forms, described switch sample circuit (6) is by resistance H (8a), resistance J (10a) forms, described sectional dimming control chip (V) PO holds a pin (P1) to connect described switch sample circuit (6), vdd terminal five pin (V5) connecting triode C (3f) emitter, triode C (3f) base stage connects voltage-stabiliser tube (ZD1) and ground connection, resistance I (9a) is connected on triode C (3f) between collector electrode and base stage, triode C (3f) collector electrode meets electrochemical capacitor B (2c) and ground connection, described sectional dimming control chip (V) GND holds two pin (V2) ground connection.
6. a kind of colour temperature segmented adjustment LED according to claim 1, it is characterized in that: described white light or yellow light LED drive circuit (7) are by resistance M (13a), resistance N (14a), field-effect transistor B (2e), field-effect transistor C (3e) forms, resistance N (14a) one end connects described sectional dimming control chip (V) P2 and holds four pin (V4), one end connects field-effect transistor B (2e) grid, field-effect transistor B (2e) drain electrode connects described white LED lamp pearl (1), field-effect transistor B (2e) source ground, resistance M (13a) one end connects described sectional dimming control chip (V) P1 and holds tripod (V3), one end connects field-effect transistor C (3e) grid, field-effect transistor C (3e) drain electrode connects described yellow light LED lamp pearl (2), field-effect transistor C (3e) source ground.
7. a kind of colour temperature segmented adjustment LED according to claim 1, it is characterized in that: described warm white power ascension circuit (8) comprises diode I (9d), diode J (10d), triode A (1f), resistance C (3a), resistance G (7a), diode I (9d) positive pole connects described yellow light LED lamp pearl (2), diode I (9d) negative pole connecting triode A (1f) base stage, diode J (10d) positive pole connects described white LED lamp pearl (1), diode J (10d) negative pole is connected with diode I (9d) negative pole, resistance C (3a) is connected on triode A (1f) between base stage and emitter, resistance G (7a) connecting triode A (1f) base stage ground connection.
8. a kind of colour temperature segmented adjustment LED according to claim 1, it is characterized in that: start fan control circuitry (9) and comprise transformer (T) secondary coil (T2), diode G (7d), electrochemical capacitor C (3c), resistance K (11a), triode B (2f), resistance L (12a), diode I (9d), diode J (10d), triode B (2f) emitter connects diode G (7d) successively, transformer (T) secondary coil (T2) ground connection, electrochemical capacitor C (3c) positive pole connecting triode B (2f) emitter, minus earth, resistance K (11a) is connected between triode B (2f) base stage and electrochemical capacitor C (3c) negative pole, described fan (3) one end connecting triode B (2f) collector electrode, the other end is connected with resistance L (12a) one end, resistance L (12a) other end ground connection.
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| CN201520261925.1U CN204634098U (en) | 2015-04-28 | 2015-04-28 | A kind of colour temperature segmented adjustment LED |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI607153B (en) * | 2016-07-15 | 2017-12-01 | 台達電子工業股份有限公司 | Smart ventilation fan system and smart ventilation fan device |
| CN107809821A (en) * | 2017-10-23 | 2018-03-16 | 东莞达文西光电有限公司 | A kind of pressure-controlled dimming driving circuit |
| CN107831364A (en) * | 2017-11-15 | 2018-03-23 | 哈尔滨理工大学 | A kind of electric energy harmonic detecting method |
| CN110972382A (en) * | 2019-12-26 | 2020-04-07 | 珠海世讯科技有限公司 | Phase dimming circuit and method |
-
2015
- 2015-04-28 CN CN201520261925.1U patent/CN204634098U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI607153B (en) * | 2016-07-15 | 2017-12-01 | 台達電子工業股份有限公司 | Smart ventilation fan system and smart ventilation fan device |
| CN107809821A (en) * | 2017-10-23 | 2018-03-16 | 东莞达文西光电有限公司 | A kind of pressure-controlled dimming driving circuit |
| CN107809821B (en) * | 2017-10-23 | 2019-07-02 | 东莞达文西光电有限公司 | A kind of pressure-controlled dimming driving circuit |
| CN107831364A (en) * | 2017-11-15 | 2018-03-23 | 哈尔滨理工大学 | A kind of electric energy harmonic detecting method |
| CN110972382A (en) * | 2019-12-26 | 2020-04-07 | 珠海世讯科技有限公司 | Phase dimming circuit and method |
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