CN110099476A - A kind of high PF Intelligent dimming circuit structure of high integration - Google Patents
A kind of high PF Intelligent dimming circuit structure of high integration Download PDFInfo
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- CN110099476A CN110099476A CN201810094823.3A CN201810094823A CN110099476A CN 110099476 A CN110099476 A CN 110099476A CN 201810094823 A CN201810094823 A CN 201810094823A CN 110099476 A CN110099476 A CN 110099476A
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- 101100464782 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) CMP2 gene Proteins 0.000 claims description 9
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- 238000005516 engineering process Methods 0.000 description 5
- 230000033228 biological regulation Effects 0.000 description 3
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
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Abstract
The invention discloses a kind of high PF Intelligent dimming circuit structures of high integration, including input terminal L, input terminal N, rectifier bridge BRG, constant current chip U1, signal to generate chip U2, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, capacitor C1, capacitor C3, capacitor C4, capacitor C5, capacitor C6, inductance L1, diode D1, diode D2, diode D3, power switch tube M1, power switch tube M2, auxiliary winding AUX, output head anode and negative pole of output end.The utility model has the advantages that pwm signal is to receive the control signal of the bluetooth equipments such as mobile phone by U2 and be converted into permanent high, permanent low or 0-100% duty ratio pulse signal to realize, and then achieve the purpose that intelligent dimming.
Description
Technical field
The present invention relates to light adjusting circuit technical fields, it particularly relates to a kind of high PF Intelligent dimming circuit of high integration
Structure.
Background technique
The energy consumption of traditional fluorescent lamp pipe is high, the service life is short, and has used the heavy metal element of many pollution environment, runs counter to ring
The main trend of border protection, as the high speed development LED illumination of LED technology is increasingly becoming the only choosing of novel green illumination, just
Gradually substitute traditional fluorescent lamp pipe, LED principle of luminosity, energy-saving and environmental protection level on all be far superior to traditional lighting products.For
The brightness of illumination of the different occasions of adaptation, dimming mode used by each production firm emerge one after another, and most is exactly to transport
LED lamp is dimmed with traditional controllable silicon dimmer and remote controler, not only to reinstall line in this way and
And also add many costs.In daily life, with the variation of ambient brightness, we can adjust the brightness of lamps and lanterns to adapt to
The lighting requirement that human eye must reach when reading.Traditional lamp light-regulating method be by manually adjust resistance, increase and decrease it is silicon-controlled
The electric current of trigger electrode, control output voltage is to change the mean power of light bulb, to obtain different brightness, hand-operating light is not only numb
It is tired, and the subjective feeling degree for relying on user completely is dimmed, therefore can not be by the brightness regulation of lamps and lanterns to reasonable brightness with suitable
Answer the variation of ambient brightness.
For the problems in the relevant technologies, currently no effective solution has been proposed.
Summary of the invention
For the problems in the relevant technologies, the present invention proposes a kind of high PF Intelligent dimming circuit structure of high integration, with gram
Take above-mentioned technical problem present in existing the relevant technologies.
The technical scheme of the present invention is realized as follows:
A kind of high PF Intelligent dimming circuit structure of high integration, including input terminal L, input terminal N, rectifier bridge BRG, constant current core
Piece U1, signal generate chip U2, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, capacitor C1, capacitor C3, capacitor C4,
It is capacitor C5, capacitor C6, inductance L1, diode D1, diode D2, diode D3, power switch tube M1, power switch tube M2, auxiliary
Help winding AUX, output head anode and negative pole of output end, wherein the input terminal L first end with the rectifier bridge BRG respectively
And the diode D2 anode connection, the input terminal N respectively with the third end of the rectifier bridge BRG and the diode D3
Anode connection, the rectifier bridge BRG second end ground connection, the 4th end of the rectifier bridge BRG respectively with the diode D1
Cathode, one end of the resistance R4, one end of the capacitor C4 and output head anode connection, the diode D2's is negative
Pole is connect with the drain electrode of the cathode of the diode D3, one end of the resistance R5 and the power switch tube M2 respectively, described
The grid of power switch tube M2 is connect with pin HV on the other end of the resistance R5 and the constant current chip U1 respectively, the function
Rate switching tube M2 source electrode is connect with pin VDD on the capacitor C1 and the constant current chip U1 respectively, on the constant current chip U1
Pin DRV is connect with the grid of the power switch M1, the power switch M1 drain electrode respectively with the diode D1 just
Pole and one end of the inductance L1 connection, the other end of the inductance L1 respectively with the other end of the resistance R4, the capacitor
The other end of C4 and negative pole of output end connection, also, be provided between the output head anode and the negative pole of output end
LED light group, the source electrode of the power switch M1 connect with one end of pin CS and the resistance R3 on the constant current chip U1 respectively
It connects, the other end ground connection of the resistance R3, pin COMP is grounded by capacitor C3 on the constant current chip U1, the constant current chip
The upper pin GND of U1 is grounded, and pin DIM is connect with the first end that the signal generates chip U2 on the constant current chip U1, described
Signal generates chip U2 and connect respectively with pin LDO on one end of the capacitor C6 and the constant current chip U1, the capacitor C6
The other end respectively with the signal generate the third end (ground) of chip U2, one end of the auxiliary winding AUX, the resistance R2
One end, the capacitor C5 one end connect and ground, one end of the other end of the auxiliary winding AUX and the resistance R1 connect
It connects, the other end of the resistance R1 other end and the constant current core with the other end of the resistance R2, the capacitor C5 respectively
Pin FB connection on piece U1.
Further, the constant current chip U1 include GM module, CMP1 module, CMP2 module, S&H module, VREF module,
LDO1 module, PWM-LOGIC module, VDD-DETECT module, DRIVER module, FB-DET module and REGULATOR&UVLO mould
Block, wherein the pin LDO is connect with the pin DRV, the pin HV and the LDO1 module respectively, the pin DRV
Connect respectively with the third end of the pin COMP and the DRIVER module, the DRIVER module second end respectively with it is described
LDO1 module, the VDD-DETECT module, the REGULATOR&UVLO module and the pin VDD connection, the pin
HV is connect with the pin VDD and the VDD-DETECT module respectively, and the pin VDD is connect with the pin FB, described
Pin FB is connect by the FB-DET module with the first end of the PWM-LOGIC module, and the of the PWM-LOGIC module
Two ends are connect with the first end of the CMP1 module, the third at the third end of the PWM-LOOIC module and the CMP1 module
End connection, the 4th end of PWM-LOGIC module are connect with the third end of the CMP2, the 5th end of PWM-LOGIC module
Connect with the DRIVER module first end, the second end of the CMP1 module respectively with the third end of the GM module and described
The first end of pin COMP connection, the GM module passes through the VREF module ground, the VREF module and the pin DIM
Connection, the pin DIM connect with the pin FB and the pin CS respectively, the pin CS respectively with the S&H module
One end, the second end of the GM module, the first end of the CMP2 module and the pin GND connection, the pin GND with
The pin COMP connection, the second end of the S&H module are connect with the second end of the GM module.
Further, the signal generates the control signal that chip U2 receives the bluetooth equipments such as mobile phone.
Further, the input terminal L and the input terminal N input value are the friendship of frequency 50-60Hz, voltage 85V-265V
Galvanic electricity.
Further, the constant current chip U1 voltage allowed band is 12V-25V.
Further, linear voltage-stabilizing circuit is provided on the constant current chip U1, also, the linear voltage-stabilizing circuit is letter
Number generate chip U2 provide 3.3V voltage.
Further, the capacitor C4 is electrolytic capacitor.
Wherein, English of the present invention is described below:
PF: power factor.
CMP: comparator.
The drain electrode of DRAIN:MOS pipe.
DRVER: drive module.
PWM-LOGIC: pulsewidth modulation Logic control module.
REGULATOR&UVLO: supply voltage adjuster and under-voltage protecting circuit.
FB-DET: feedback detection module.
FB: feedback port.
SAW；Sawtooth wave generation module.
GM: spaning waveguide operational amplifier.
CS: current detecting port.
COMP: compensation port.
Beneficial effects of the present invention are；The high PF Intelligent dimming circuit structure of a kind of high integration provided by the invention, this electricity
The basic function on road is that the amplitude in input AC electricity, output LED both end voltage, environment temperature and each part characteristic exist
In the case where degenerating in a certain range, system still can guarantee the constant current supply of default, and driving LED light group shines,
The function is completed by constant current chip U1.And this is structurally characterized in that intelligent dimming function, which is to receive U2 by U1 chip
The pulse-width signal PWM of generation is completed, and can export electric current with linear regulation according to the duty ratio of pwm signal, pwm signal be by
U2 receives the control signal of bluetooth equipments such as mobile phone and is converted into permanent high, permanent low or 0-100% duty ratio pulse signal to come in fact
Existing, permanent height corresponds to maximum brightness, permanent low to close, when having a pulse corresponding LED light brightness and pulse signal duty ratio at
Direct ratio, and then complete the purpose of intelligent dimming.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is a kind of schematic diagram of the high PF Intelligent dimming circuit structure of high integration according to an embodiment of the present invention；
Fig. 2 is the structure of the chip U1 of the high PF Intelligent dimming circuit structure of high integration according to an embodiment of the present invention a kind of
Schematic diagram.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art's every other embodiment obtained belong to what the present invention protected
Range.
According to an embodiment of the invention, providing a kind of high PF Intelligent dimming circuit structure of high integration.
As shown in Figs. 1-2, the high PF Intelligent dimming circuit structure of high integration according to an embodiment of the present invention, including input terminal
L, input terminal N, rectifier bridge BRG, constant current chip U1, signal generate chip U2, resistance R1, resistance R2, resistance R3, resistance R4, electricity
Hinder R5, capacitor C1, capacitor C3, capacitor C4, capacitor C5, capacitor C6, inductance L1, diode D1, diode D2, diode D3, function
Rate switching tube M1, power switch tube M2, auxiliary winding AUX, output head anode and negative pole of output end, wherein the input terminal L points
Do not connect with the anode of the first end of the rectifier bridge BRG and the diode D2, the input terminal N respectively with the rectifier bridge
The anode connection of the third end of BRG and the diode D3, the second end ground connection of the rectifier bridge BRG, the rectifier bridge BRG's
4th end respectively with the cathode of the diode D1, one end of the resistance R4, one end of the capacitor C4 and the output end
Anode connection, the cathode of the diode D2 respectively with the cathode of the diode D3, one end of the resistance R5 and the function
The drain electrode of rate switching tube M2 connects, the grid of the power switch tube M2 respectively with the other end of the resistance R5 and the constant current
Pin HV connection on chip U1, the power switch tube M2 source electrode respectively with pin on the capacitor C1 and the constant current chip U1
VDD connection, pin DRV is connect with the grid of the power switch M1 on the constant current chip U1, the leakage of the power switch M1
Pole is connect with one end of the positive and described inductance L1 of the diode D1 respectively, the other end of the inductance L1 respectively with it is described
The other end of resistance R4, the other end of the capacitor C4 and negative pole of output end connection, also, the output head anode and institute
State and be provided with LED light group between negative pole of output end, the source electrode of the power switch M1 respectively with pin on the constant current chip U1
The other end of the connection of one end of CS and the resistance R3, the resistance R3 is grounded, and pin COMP passes through on the constant current chip U1
Capacitor C3 is grounded, pin GND ground connection on the constant current chip U1, and pin DIM and the signal generate on the constant current chip U1
The first end of chip U2 connects, and the signal generates chip U2 respectively and on one end of the capacitor C6 and the constant current chip U1
Pin LDO connection, the other end of the capacitor C6 respectively with the signal generate chip U2 third end (ground), it is described auxiliary around
Group one end of AUX, one end of the resistance R2, the capacitor C5 one end connect and ground, the auxiliary winding AUX's is another
End connect with one end of the resistance R1, the other end of the resistance R1 respectively with the other end of the resistance R2, the capacitor
Pin FB connection on the other end of C5 and the constant current chip U1.
In one embodiment, the constant current chip U1 include GM module, CMP1 module, CMP2 module, S&H module,
VREF module, LDO1 module, PWM-LOGIC module, VDD-DETECT module, DRIVER module, FB-DET module and
REGULATOR&UVLO module, wherein the pin LDO respectively with the pin DRV, the pin HV and the LDO1 module
Connection, the pin DRV are connect with the third end of the pin COMP and the DRIVER module respectively, the DRIVER module
Second end respectively with the LDO1 module, the VDD-DETECT module, the REGULATOR&UVLO module and the pin
VDD connection, the pin HV are connect with the pin VDD and the VDD-DETECT module respectively, the pin VDD with it is described
Pin FB connection, the pin FB is connect by the FB-DET module with the first end of the PWM-LOGIC module, described
The second end of PWM-LOGIC module is connect with the first end of the CMP1 module, the third end of the PWM-LOGIC module and institute
The third end connection of CMP1 module is stated, the 4th end of PWM-LOGIC module is connect with the third end of the CMP2, the PWM-
The 5th end of LOGIC module is connect with the DRIVER module first end, the second end of the CMP1 module respectively with the GM mould
The first end of the third end of block and the pin COMP connection, the GM module passes through the VREF module ground, the VREF
Module is connect with the pin DIM, and the pin DIM is connect with the pin FB and the pin CS respectively, the pin CS
Respectively with one end of the S&H module, the second end of the GM module, the first end of the CMP2 module and the pin GND
Connection, the pin GND are connect with the pin COMP, and the second end of the second end of the S&H module and the GM module connects
It connects.
In one embodiment, the signal generates the control signal that chip U2 receives the bluetooth equipments such as mobile phone.
In one embodiment, the input terminal L and the input terminal N input value are frequency 50-60Hz, voltage 85V-
The alternating current of 265V.
In one embodiment, the constant current chip U1 voltage allowed band is 12V-25V.
In one embodiment, linear voltage-stabilizing circuit, also, linear voltage stabilization electricity are provided on the constant current chip U1
Road generates chip U2 for signal and provides 3.3V voltage.
In one embodiment, the capacitor C4 is electrolytic capacitor.
It when concrete application, is driven as intelligent LED, control signal need to be obtained from bluetooth equipments such as mobile phones, is believed with the control
Number adjust output electric current, to achieve the purpose that adjust LED luminance, in the process, when equipment control lamp goes out, system should be into
Enter standby mode wait next time open or dim signal, i.e. VDD, LDO of U1 need to keep operating voltage, this function generally by
One standby switches power circuit drops to 10V to 20V range, and the low-ripple voltage of 5V or 3.3V are then transformed into LDO chip
Give wireless chip.In circuit framework, standby power chip and standby power peripheral component are saved, and LDO is integrated into
In main control chip so that system peripherals circuit is simpler, easily designed, under this system frame, the task of standby power by D2,
D3, M2, R5, C1 are completed, and chip U1 is detected by VDD pin, and VDD amplitude is controlled by HV foot, so that VDD stablizes default
Voltage value.
In conclusion by means of above-mentioned technical proposal of the invention, a kind of high PF intelligence of high integration provided by the invention
Light adjusting circuit structure, the basic function of this circuit be input AC electricity amplitude, output LED both end voltage, environment temperature with
And in the case that each part characteristic is degenerated in a certain range, system still can guarantee that the constant current of default supplies
It gives, driving LED light group shines, which completed by constant current chip U1.And this is structurally characterized in that intelligent dimming function, the function
Can receive the pulse-width signal PWM that U2 is generated by U1 chip to complete, it can be defeated with linear regulation according to the duty ratio of pwm signal
Electric current out, pwm signal are to receive the control signal of the bluetooth equipments such as mobile phone by U2 and be converted into permanent high, the low or 0-100% of perseverance to account for
The pulse signal of empty ratio realizes, permanent height corresponds to maximum brightness, permanent low to close, corresponding LED light brightness when having a pulse
It is directly proportional to pulse signal duty ratio, and then complete the purpose of intelligent dimming.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of high PF Intelligent dimming circuit structure of high integration, which is characterized in that including input terminal L, input terminal N, rectifier bridge
BRG, constant current chip U1, signal generate chip U2, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, capacitor C1, capacitor
C3, capacitor C4, capacitor C5, capacitor C6, inductance L1, diode D1, diode D2, diode D3, power switch tube M1, power are opened
Close pipe M2, auxiliary winding AUX, output head anode and negative pole of output end, wherein the input terminal L respectively with the rectifier bridge BRG
First end and the diode D2 anode connection, the input terminal N respectively with the third end of the rectifier bridge BRG and described
Diode D3 anode connection, the rectifier bridge BRG second end ground connection, the 4th end of the rectifier bridge BRG respectively with it is described
The cathode of diode D1, one end of the resistance R4, one end of the capacitor C4 and output head anode connection, two pole
The cathode of pipe D2 connects with the drain electrode of the cathode of the diode D3, one end of the resistance R5 and the power switch tube M2 respectively
It connects, the grid of the power switch tube M2 connects with pin HV on the other end of the resistance R5 and the constant current chip U1 respectively
It connects, the power switch tube M2 source electrode is connect with pin VDD on the capacitor C1 and the constant current chip U1 respectively, the constant current
Pin DRV is connect with the grid of the power switch M1 on chip U1, the drain electrode of the power switch M1 respectively with two pole
One end of the positive and described inductance L1 of pipe D1 connects, the other end of the inductance L1 respectively with the other end of the resistance R4,
The other end of the capacitor C4 and negative pole of output end connection, also, the output head anode and the negative pole of output end it
Between be provided with LED light group, the source electrode of the power switch M1 respectively with pin CS on the constant current chip U1 and resistance R3
One end connection, the other end ground connection of the resistance R3, pin COMP is grounded by capacitor C3 on the constant current chip U1, described
Pin GND is grounded on constant current chip U1, and the first end that pin DIM and the signal generate chip U2 on the constant current chip U1 connects
It connects, the signal generates chip U2 and connect respectively with pin LDO on one end of the capacitor C6 and the constant current chip U1, described
The other end of capacitor C6 generates the one end, described at the third end (ground) of chip U2, the auxiliary winding AUX with the signal respectively
One end of resistance R2, the capacitor C5 one end connect and ground, the other end of the auxiliary winding AUX and the resistance R1's
One end connection, the other end of the resistance R1 respectively with the other end of the resistance R2, the other end of the capacitor C5 and described
Pin FB connection on constant current chip U1.
2. the high PF Intelligent dimming circuit structure of a kind of high integration according to claim 1, which is characterized in that the constant current
Chip U1 include GM module, CMP1 module, CMP2 module, S&H module, VREF module, LDO1 module, PWM-LOGIC module,
VDD-DETECT module, DRIVER module, FB-DET module and REGULATOR&UVLO module, wherein the pin LDO difference
Connect with the pin DRV, the pin HV and the LDO1 module, the pin DRV respectively with the pin COMP and institute
State DRIVER module third end connection, the DRIVER module second end respectively with the LDO1 module, the VDD-
DETECT module, the REGULATOR&UVLO module and the pin VDD connection, the pin HV respectively with the pin
VDD and VDD-DETECT module connection, the pin VDD are connect with the pin FB, and the pin FB passes through the FB-
DET module is connect with the first end of the PWM-LOGIC module, the second end of the PWM-LOGIC module and the CMP1 mould
The first end of block connects, and the third end of the PWM-LOGIC module is connect with the third end of the CMP1 module, the PWM-
The 4th end of LOGIC module is connect with the third end of the CMP2, the 5th end of PWM-LOGIC module and the DRIVER module
First end connection, the second end of the CMP1 module are connect with the third end of the GM module and the pin COMP respectively, institute
The first end of GM module is stated by the VREF module ground, the VREF module is connect with the pin DIM, the pin
DIM is connect with the pin FB and the pin CS respectively, the pin CS respectively with one end of the S&H module, the GM
The second end of module, the first end of the CMP2 module and the pin GND connection, the pin GND and the pin COMP
Connection, the second end of the S&H module are connect with the second end of the GM module.
3. the high PF Intelligent dimming circuit structure of a kind of high integration according to claim 1, which is characterized in that the signal
Generate the control signal that chip U2 receives the bluetooth equipments such as mobile phone.
4. the high PF Intelligent dimming circuit structure of a kind of high integration according to claim 1, which is characterized in that the input
It holds L and the input terminal N input value is the alternating current of frequency 50-60Hz, voltage 85V-265V.
5. the high PF Intelligent dimming circuit structure of a kind of high integration according to claim 1, which is characterized in that the constant current
Chip U1 voltage allowed band is 12V-25V.
6. the high PF Intelligent dimming circuit structure of a kind of high integration according to claim 1, which is characterized in that the constant current
Linear voltage-stabilizing circuit is provided on chip U1, also, the linear voltage-stabilizing circuit generates chip U2 for signal and provides 3.3V voltage.
7. the high PF Intelligent dimming circuit structure of a kind of high integration according to claim 1, which is characterized in that the capacitor
C4 is electrolytic capacitor.
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| CN201810094823.3A CN110099476B (en) | 2018-01-31 | 2018-01-31 | High-integration-level high-PF intelligent dimming circuit structure |
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| CN201810094823.3A CN110099476B (en) | 2018-01-31 | 2018-01-31 | High-integration-level high-PF intelligent dimming circuit structure |
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Cited By (1)
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| CN113727493A (en) * | 2021-09-03 | 2021-11-30 | 江西汇荣实业有限公司 | Intelligent microwave radar LED bulb lamp |
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| CN110099476B (en) | 2024-03-15 |
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