CN205546025U - LED light-emitting control circuit with power supply type identification function - Google Patents
LED light-emitting control circuit with power supply type identification function Download PDFInfo
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- CN205546025U CN205546025U CN201521106786.1U CN201521106786U CN205546025U CN 205546025 U CN205546025 U CN 205546025U CN 201521106786 U CN201521106786 U CN 201521106786U CN 205546025 U CN205546025 U CN 205546025U
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- 238000005070 sampling Methods 0.000 abstract 1
- 239000003990 capacitor Substances 0.000 description 6
- 230000008901 benefit Effects 0.000 description 3
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- 230000009286 beneficial effect Effects 0.000 description 1
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- 230000006837 decompression Effects 0.000 description 1
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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
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
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Abstract
The utility model relates to a LED light-emitting control circuit with discernment power supply type, including power supply input end, protection circuit, luminous LED row, rectifier circuit one, rectifier circuit two, high frequency filter circuit one and high frequency filter circuit two, decay sampling circuit, buck/boost converting circuit one, buck/boost converting circuit two, two-way MOS electronic switch one, two-way MOS electronic switch two and microprocessor; the luminous LED array is formed by connecting a plurality of luminous LEDs in series; the microprocessor is composed of a chip 1458 and a chip PIC16F84A, wherein the chip 1458 and a resistor R7 form an input current circuit. The utility model discloses a circuit can be in the same place as the partly of light source with LED lamp strip assembly, has saved the recognition picture before the installation like this to the picture link, can not cause lamps and lanterns to damage because of misoperation and factors such as mismatching moreover.
Description
Technical field
This utility model and illumination driving circuit technical field, particularly to a kind of LED emission control circuit with identification power supply type.
Background technology
The tube strip light such as T8/T10 are to apply the most universal lighting source, its general composition control circuit+gas discharge electroluminescent lamp i.e. fluorescent lamp, and wonder that the small volume solid LED luminescence unit of quantity can form bar shaped flexibly, circular, the multiple lighting source such as face, goes to replace fluorescent tube by LED lamp tube and has many advantages: service life is long, and light efficiency is high, safe ready is installed in transport, does not comprise harmful substance etc..And can use under not changing light fixture other parts, greatly reduce use condition.But LED light source needs oneself exclusive drive circuit.
In order to meet relevant harmonic standard, value must be in prescribed limit for the PF (Power Factor is called for short power factor) of AC-DC LED driver (AC-DC LED drive).Tradition AC-DC LED driver is divided into single stage type AC-DC LED driver and two-stage type AC-DC LED driver.Single stage type AC-DC LED driver, by parameter reasonable in design, it is possible to achieve high PF value, but control variable is limited, it is unfavorable for optimizing the efficiency of LED driver and it is necessary to use electrochemical capacitor, this have impact on the service life of LED driver, the problem that simultaneously there may be visual stroboscopic.Two-stage type AC-DC LED driver, can take entire variable control, it is achieved high PF value, and is conducive to optimizing the efficiency of LED driver, and can realize without visual stroboscopic.Owing to the input of LED driver is the power of a pulsation, and exporting is a straight power, needs the storage capacitor on intermediate bus bar to balance the two power, if this storage capacitor uses electrochemical capacitor, then have impact on the service life of LED driver；If this storage capacitor uses pottery or thin-film capacitor, then intermediate-bus voltage may be made to be limited to the voltage stress scope of electric capacity, or meet voltage stress scope, but the chip area that electric capacity takies is big, adds the cost of LED driver.
Secondly, because country variant is different with the light fixture standard in area, and producer/old and new standard is the most variant, general LED drives control circuit can not to identify and drive, so, add the knowledge figure before installation to figure link, therefore light fixture can be caused to damage because of the factor such as coupling of operational error/not.
Utility model content
The purpose of this utility model is: for the problem of above-mentioned existence, it is provided that a kind of have the LED emission control circuit identifying power supply type.
The technical solution adopted in the utility model is such that a kind of LED emission control circuit having and identifying power supply type, including power supply input, protection circuit, emitting led row, rectification circuit one, rectification circuit two, high-frequency filter circuit one and high-frequency filter circuit two, decay sample circuit, buck/boost translation circuit one, buck/boost translation circuit two, bi-directional MOS electrical switch one, bi-directional MOS electrical switch two and microprocessor；Described protection circuit is made up of fuse F1, F2, F3 and F4, and the input of described fuse F1, F2, F3 and F4 is connected with power supply input respectively；Described emitting led row emitting led are composed in series by multiple；Described microprocessor uses chip 1458 and chip PIC16F84A composition, and described chip 1458 forms input current circuit with resistance R7.
Further, the outfan of described fuse F1, F2 is connected with the input of rectification circuit one, described rectification circuit one input with bi-directional MOS electrical switch one and high-frequency filter circuit one respectively is connected, and high-frequency filter circuit one input is provided with input voltage circuit；Described input voltage circuit is connected with chip PIC16F84A, the outfan of described high-frequency filter circuit one is connected with one end of emitting led row, the other end of described emitting led row and the outfan of high-frequency filter circuit two, the input of high-frequency filter circuit two is connected with rectification circuit two, and described rectification circuit two is also connected with decay sample circuit and MOS electrical switch two；Described decay sample circuit is connected with chip 1458, fuse F3 and fuse F4 respectively.
Further, described power supply input is provided with four ports, and two of which port is connected with communication power supply, and two other port is connected with electromagnetic ballast or electric ballast.
Further, described power supply input is provided with four ports, and any two port is one group, and each group is connected with communication power supply respectively.
Further, described high-frequency filter circuit one and high-frequency filter circuit two are π type filter circuit；Described high-frequency filter circuit one is made up of inductance L1, L2 and electric capacity C1, and high-frequency filter circuit two is made up of inductance L3, L4 and electric capacity C2.It is mainly used in decay, filters the high frequency spurs signal passed over by other circuit, meet EMC Industry code requirements and improve the reliability stability of system.
Further, described decay sample circuit is made up of resistance R8, R9, R10 and electric capacity C9；The intersection point of described resistance R8 and resistance R9 is connected with one end of electric capacity C9, and the other end of electric capacity C9 is connected with resistance R10.
Further, described input voltage electricity routing resistance R13 and resistance R14 composition.
Further, described bi-directional MOS electrical switch one is connected with chip PIC16F84A by buck/boost translation circuit one；Described bi-directional MOS electrical switch two is connected with chip PIC16F84A by buck/boost translation circuit two.
In sum, owing to have employed technique scheme, the beneficial effects of the utility model are: because country variant is different with the light fixture standard in area, and producer/old and new standard is the most variant, but whether which type of type the lamp socket of tube fluorescent tube is, what kind of original control circuit block diagram is, of the present utility model can identify and driven, thus it can be assembled together as the part of light source with LED lamp bar, this eliminate the knowledge figure before installation to figure link, and light fixture will be caused to damage because of factors such as operational error and non-couplings；Significantly reduce loss and the caloric value of commutation diode.
Accompanying drawing explanation
This utility model will illustrate by example and with reference to the appended drawing, wherein:
Fig. 1 is the schematic diagram of this utility model circuit；
Fig. 2 be this utility model circuit be embodied as schematic diagram.
Detailed description of the invention
Below in conjunction with the accompanying drawings, this utility model is described in detail.
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, this utility model is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain this utility model, is not used to limit this utility model.
As shown in Figure 1; a kind of have the LED emission control circuit identifying power supply type, including power supply input, protection circuit, emitting led row, rectification circuit one, rectification circuit two, high-frequency filter circuit one and high-frequency filter circuit two, decay sample circuit, buck/boost translation circuit one, buck/boost translation circuit two, bi-directional MOS electrical switch one, bi-directional MOS electrical switch two and microprocessor；Described protection circuit is made up of fuse F1, F2, F3 and F4, and the input of described fuse F1, F2, F3 and F4 is connected with power supply input respectively；Described emitting led row emitting led are composed in series by multiple；Described microprocessor uses chip 1458 and chip PIC16F84A composition, and described chip 1458 forms input current circuit with resistance R7.
Specifically, the outfan of described fuse F1, F2 is connected with the input of rectification circuit one, described rectification circuit one input with bi-directional MOS electrical switch one and high-frequency filter circuit one respectively is connected, and high-frequency filter circuit one input is provided with input voltage circuit；Described input voltage circuit is connected with chip PIC16F84A, the outfan of described high-frequency filter circuit one is connected with one end of emitting led row, the other end of described emitting led row and the outfan of high-frequency filter circuit two, the input of high-frequency filter circuit two is connected with rectification circuit two, and described rectification circuit two is also connected with decay sample circuit and MOS electrical switch two；Described decay sample circuit is connected with chip 1458, fuse F3 and fuse F4 respectively.
Specifically, described power supply input is provided with four ports, and two of which port is connected with communication power supply, and two other port is connected with electromagnetic ballast or electric ballast.
Specifically, described power supply input is provided with four ports, and any two port is one group, and each group is connected with communication power supply respectively.
Specifically, described decay sample circuit is made up of resistance R8, R9, R10 and electric capacity C9；The intersection point of described resistance R8 and resistance R9 is connected with one end of electric capacity C9, and the other end of electric capacity C9 is connected with resistance R10.
Specifically, described input voltage electricity routing resistance R13 and resistance R14 composition.
Specifically, described bi-directional MOS electrical switch one is connected with chip PIC16F84A by buck/boost translation circuit one；Described bi-directional MOS electrical switch two is connected with chip PIC16F84A by buck/boost translation circuit two.
As mentioned in the embodiment of figure 2, fuse F1, F2, F3 and F4 in disconnecting circuit connection thus avoid causing the inefficacy of other circuit part in the situation crossing stream, cause the accidents such as on fire, electric shock.
Rectification circuit one is made up of diode D1, D2, D3 and D4, and rectification circuit two is made up of diode D1, D2, D3 and D4.The fluorescent lamp socket that common tube fluorescent tube is corresponding has 4 terminals, here it is respectively defined as the circuit that Φ 1 Φ 2 Φ 3 Φ 4 is directed to the present invention and has two kinds of connections, connection a: 4 terminals of fluorescent lamp socket are divided into Φ 1 Φ 3 or Φ 2 Φ 4 to connect Alternating Current Power Supply end, and other two connect starter (electromagnetic ballast) or resonant capacitance (electric ballast)；Connection b: any two contacts of fluorescent lamp socket or pair-wise combination connect household AC power supply 85～265VAC.So regardless of Φ 1 Φ 3 or Φ 2 Φ 4, all can partner bridge rectifier, and C1, C2 are upper just lower negative DC voltages.
High-frequency filter circuit one and high-frequency filter circuit two are π type filter circuit；Described high-frequency filter circuit one is made up of inductance L1, L2 and electric capacity C1, high-frequency filter circuit two is made up of inductance L3, L4 and electric capacity C2, it is mainly used in decay, filters the high frequency spurs signal passed over by other circuit, meet EMC Industry code requirements and improve the reliability stability of system.
Resistance R8, R9, R10 and electric capacity C9 composition decay sample circuit, the big signal attenuation of power supply is that small-signal send microprocessor identification by this circuit.There are following 3 kinds of situations；1) signal be the voltage then power supply type of below 200Hz be domestic power supply source or electromagnetic ballast；2) signal be the voltage then power supply of 15kHz～70kHz be electric ballast；3) signal is that the sinusoidal alternate voltages of 2kHz or 2.5kHz is then for the control instruction of additional dim circuit transmission, carrier signal Duration Ratio is 1/1 and 1/3, i.e. being respectively binary zero and 1, microprocessor can control to perform circuit work according to the formula that power supply source type is different with instruction calls.
The voltage of LED, current work curve define that again supply voltage can only be in a interval the least, and electric current must be under maximum rated current.The effect of buck/boost translation circuit is doing boosting inverter when the DC voltage on C1, C2 after rectification less than LED normal working voltage exactly, when doing decompression transformation higher than normal voltage, in the case of the power capacity of power supply is less than LED maximum rated power, reduce power output.
Bi-directional MOS electrical switch one and bi-directional MOS electrical switch two, when power supply source type is electric ballast, bi-directional MOS is equivalent to the filament of fluorescent lamp, because the boot sequence of fluorescent tube is: 1) heat filament；2) fluorescent tube two sections add high pressure generation electric field excite the high-speed flight in fluorescent tube of the electronics on filament；3) mercury vapour, gas discharge are excited；4) high pressure is converted to low pressure.On the light fixture using electromagnetic ballast, these functions are made up of ballast inductance and trigger, and have logic control circuit inside high-frequency electronic ballast, if be detected that filament is off output at open-circuit condition then ballast during starting；On the other hand having a high-frequency resonant electric capacity in normal operation at Φ 1 Φ 3 or Φ 2 Φ 4 two ends, effect is to produce resonance high-voltage/offer heater current path/allow ballast be operated in suitable point.Test shows that removing this electric capacity when the rated power of electric ballast is much larger than the peak power of LED will not have an impact LED, if but power can reduce about 1/3. close to, the output of electric ballast and add bidirectional electronic switch and also have another benefit: if the domestic power supply that lamp socket is two ends powers, the most quite by D1, D3 and D2, D4 parallel connection, and D5, D7 and D6, D8 parallel connection, this will significantly reduce loss and the caloric value of commutation diode.
Microprocessor formula calculate input power can control duty P of change-over circuit, U, I, K to be power voltage electric current correction factor respectively with the formula of P=U*I*K.If power is excessive, shorten the service time of Q5, if input power is little, extend service time.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all any amendment, equivalent and improvement etc. made within spirit of the present utility model and principle, within should be included in protection domain of the present utility model.
Claims (8)
1. one kind has the LED emission control circuit identifying power supply type; it is characterized in that, including power supply input, protection circuit, emitting led row, rectification circuit one, rectification circuit two, high-frequency filter circuit one and high-frequency filter circuit two, decay sample circuit, buck/boost translation circuit one, buck/boost translation circuit two, bi-directional MOS electrical switch one, bi-directional MOS electrical switch two and microprocessor；Described protection circuit is made up of fuse F1, F2, F3 and F4, and the input of described fuse F1, F2, F3 and F4 is connected with power supply input respectively；Described emitting led row emitting led are composed in series by multiple；Described microprocessor uses chip 1458 and chip PIC16F84A composition, and described chip 1458 forms input current circuit with resistance R7.
There is LED emission control circuit the most as claimed in claim 1 that identify power supply type, it is characterized in that, the outfan of described fuse F1, F2 is connected with the input of rectification circuit one, described rectification circuit one input with bi-directional MOS electrical switch one and high-frequency filter circuit one respectively is connected, and high-frequency filter circuit one input is provided with input voltage circuit；Described input voltage circuit is connected with chip PIC16F84A, the outfan of described high-frequency filter circuit one is connected with one end of emitting led row, the other end of described emitting led row and the outfan of high-frequency filter circuit two, the input of high-frequency filter circuit two is connected with rectification circuit two, and described rectification circuit two is also connected with decay sample circuit and MOS electrical switch two；Described decay sample circuit is connected with chip 1458, fuse F3 and fuse F4 respectively.
There is LED emission control circuit the most as claimed in claim 1 that identify power supply type, it is characterized in that, described power supply input is provided with four ports, and two of which port is connected with communication power supply, and two other port is connected with electromagnetic ballast or electric ballast.
There is LED emission control circuit the most as claimed in claim 1 that identify power supply type, it is characterised in that described power supply input is provided with four ports, and any two port is one group, and each group is connected with communication power supply respectively.
There is LED emission control circuit the most as claimed in claim 1 that identify power supply type, it is characterised in that described high-frequency filter circuit one and high-frequency filter circuit two are π type filter circuit；Described high-frequency filter circuit one is made up of inductance L1, L2 and electric capacity C1, and high-frequency filter circuit two is made up of inductance L3, L4 and electric capacity C2.
There is LED emission control circuit the most as claimed in claim 1 that identify power supply type, it is characterised in that described decay sample circuit is made up of resistance R8, R9, R10 and electric capacity C9；The intersection point of described resistance R8 and resistance R9 is connected with one end of electric capacity C9, and the other end of electric capacity C9 is connected with resistance R10.
There is LED emission control circuit the most as claimed in claim 2 that identify power supply type, it is characterised in that described input voltage electricity routing resistance R13 and resistance R14 composition.
There is LED emission control circuit the most as claimed in claim 2 that identify power supply type, it is characterised in that described bi-directional MOS electrical switch one is connected with chip PIC16F84A by buck/boost translation circuit one；Described bi-directional MOS electrical switch two is connected with chip PIC16F84A by buck/boost translation circuit two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521106786.1U CN205546025U (en) | 2015-12-25 | 2015-12-25 | LED light-emitting control circuit with power supply type identification function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521106786.1U CN205546025U (en) | 2015-12-25 | 2015-12-25 | LED light-emitting control circuit with power supply type identification function |
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| CN205546025U true CN205546025U (en) | 2016-08-31 |
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| CN201521106786.1U Active CN205546025U (en) | 2015-12-25 | 2015-12-25 | LED light-emitting control circuit with power supply type identification function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020504899A (en) * | 2017-01-03 | 2020-02-13 | シグニファイ ホールディング ビー ヴィＳｉｇｎｉｆｙ Ｈｏｌｄｉｎｇ Ｂ．Ｖ． | Retrofit light emitting diode (LED) tubes to replace fluorescent tubes |
-
2015
- 2015-12-25 CN CN201521106786.1U patent/CN205546025U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020504899A (en) * | 2017-01-03 | 2020-02-13 | シグニファイ ホールディング ビー ヴィＳｉｇｎｉｆｙ Ｈｏｌｄｉｎｇ Ｂ．Ｖ． | Retrofit light emitting diode (LED) tubes to replace fluorescent tubes |
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