CN207475930U - LED drive power circuit and luminaire - Google Patents
LED drive power circuit and luminaire Download PDFInfo
- Publication number
- CN207475930U CN207475930U CN201721501564.9U CN201721501564U CN207475930U CN 207475930 U CN207475930 U CN 207475930U CN 201721501564 U CN201721501564 U CN 201721501564U CN 207475930 U CN207475930 U CN 207475930U
- Authority
- CN
- China
- Prior art keywords
- terminated line
- control module
- diode
- ballast
- frequency
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model provides a kind of LED drive power circuit and luminaire, and LED drive power circuit includes：Inductive ballast terminated line, equipped with control module, the VCC ends of control module are connected to energization input by pull-up resistor；Electric ballast terminated line, high-frequency model and optical coupling module equipped with series connection, the input terminal of high-frequency model is connected to energization input, the output terminal of high-frequency model is connected to the input terminal of optical coupling module, the VCC ends of control module are additionally coupled to the output terminal of optical coupling module, when the AC signal frequency of energization input belongs to first frequency range, Inductive ballast terminated line exports first kind electric signal to LED lamp source, when the AC signal frequency of energization input belongs to second frequency range, electric ballast terminated line exports type telecommunications No. the second to LED lamp source.By the technical solution of the utility model, operatively compatible electric ballast terminated line and Inductive ballast terminated line improve the reliability of LED lamp source, simple in structure and of low cost.
Description
Technical field
The utility model is related to LED lamp source technical field, in particular to a kind of LED drive power circuit and one kind
Luminaire.
Background technology
In the relevant technologies, LED (Light-Emitting Diode, light emitting diode) lamp sources are with its energy saving, cheap and peace
Congruent advantage becomes the lamps and lanterns that mainstream uses.
In order to promote the reliability of LED lamp source, ballast need to be equipped with for it, and according to the type of LED lamp sources point
For Inductive ballast and electric ballast, two kinds of ballasts are each advantageous and shortcoming is as follows：
(1) the advantages that inductance ballast is due to simple in structure and long lifespan, occupation rate of market is also bigger, still, due to
Its power factor is low, low-voltage startability is poor, consume energy the shortcomings such as heavy and stroboscopic, is taken at leisure by electric ballast
Generation.
(2) electric ballast is a converter that power frequency AC is converted into high-frequency ac power, basic work
It is as principle：Power frequency supply passes through rfi filter, after full-wave rectification and passive (or active) power factor corrector, becomes
For DC power supply, by DC/AC converters, the high-frequency ac power of 20K-100KHZ is exported, and continue to be transmitted to series resonance
Circuit heat filament, while resonance high-voltage is generated on the capacitor, LED lamp source both ends are added in, but its " electric discharge " is made " to be led by becoming
It is logical " state, " luminous " state is entered back into, at this time high-frequency inductor increased, the normal work of guarantee fluorescent tube acquisition that plays limitation electric current
Modulating voltage and lamp current needed for making, however, it may generally be desirable to add the probability that various reduction power tube switches are reversed breakdown, such as
Abnormal protection, surge voltage and current protection, temperature protection etc., the cost of product are high.
If user will use different types of LED lamp source (such as T8 types LED lamp tube), need again corresponding for its configuration
Ballast, needs to spend additional time and cost, and there are electrical hidden danger during ballast is replaced, this is unfavorable for carrying
Rise the usage experience of user.
Utility model content
The utility model is intended at least solve one of technical problem present in the prior art or the relevant technologies.
For this purpose, one of the utility model is designed to provide a kind of LED drive power circuit.
Another of the utility model is designed to provide a kind of luminaire.
To achieve these goals, the embodiment of first aspect according to the present utility model provides a kind of LED drivings electricity
Source circuit, including：Inductive ballast terminated line, equipped with control module, the VCC ends of control module are connected to by pull-up resistor
Energization input；Electric ballast terminated line, high-frequency model and optical coupling module equipped with series connection, the input terminal of high-frequency model connect
Energization input is connected to, the output terminal of high-frequency model is connected to the input terminal of optical coupling module, and the VCC ends of control module are additionally coupled to
The output terminal of optical coupling module, wherein, when the AC signal frequency of energization input belongs to first frequency range, high-frequency model and light
Coupling module is turned off, and the voltage at the VCC ends of control module is pulled up resistance and draws high as high level, for Inductive ballast matched line
Road direction LED lamp source exports first kind electric signal, when the AC signal frequency of energization input belongs to second frequency range, high frequency mould
Block and optical coupling module are both turned on, the voltage at the VCC ends of control module by optical coupling module down for low level, for electric ballast
Terminated line exports type telecommunications No. the second to LED lamp source.
In the technical scheme, by by the VCC ends of the control module in Inductive ballast terminated line through pull-up resistor
Power supply output terminal is connected to, when matching is connected to Inductive ballast, due to Inductive ballast output low frequency signal, electronic ballast
Device terminated line no signal current, at this time the voltage at the VCC ends of control module be pulled up resistance and draw high as high level, with power supply
Feel ballast terminated line to power to LED lamp source.And when matching is connected to electric ballast, since electric ballast exports height
Frequency signal, at this time high-frequency model optical coupling module ON operation, and then trigger optical coupling module work, that is, control optical coupling module powering
When having high-frequency current in circuit optical coupling module be connected, at this point, the voltage at the VCC ends of control module by optical coupling module down for low electricity
Flat, control module is stopped, then is powered from electric ballast terminated line to LED lamp source.
To sum up, by above-mentioned LED drive power circuit, operatively compatible electric ballast terminated line and inductance ballast
Device terminated line improves the Stability and dependability of LED lamp source performance, and of simple structure and low cost so that user is more
It need not consider that circuit is changed when changing LED lamp source, promote user experience.
For example, when LED drive power circuit is connected to Inductive ballast, the power frequency of Inductive ballast output is
50Hz, current signal cannot be by high-frequency models, and optical coupling module is not turned at this time, and the voltage at the VCC ends of control module is pulled up
Resistance is drawn high as high level, is powered from Inductive ballast terminated line to LED lamp source, when LED drive power circuit is connected to electricity
During sub-ballast, the power frequency of electric ballast output is 30KHz, and current signal can pass through high-frequency model, optical coupling module
ON operation so that the VCC ends ground connection of the control module in Inductive ballast terminated line, i.e., control module is stopped, by
Electron rectifier terminated line is powered to LED lamp source.
In any of the above-described technical solution, it is preferable that Inductive ballast terminated line further includes：Rectification module is series at
Between energization input and control module, for carrying out rectification processing in advance to the signal for flowing into control module.
In the technical scheme, it by the way that rectification module is series between energization input and control module, realizes whole
Flow module handles the electric current of energization input, ensure that the electric current for flowing into control module is direct current, improves LED light
The Stability and dependability of source performance is conducive to promote user experience.
In any of the above-described technical solution, it is preferable that rectification module includes：First rectification of parallel connection access energization input
Branch and the second rectification branch, the first rectification branch include the first rectifier diode and the second rectifier diode of cathode docking,
Second rectification branch includes the third rectifier diode and the 4th rectifier diode of anode docking, wherein, the endpoint of cathode docking
VCC ends are connected to by pull-up resistor, the endpoint of anode docking is connected to ground wire.
In the technical scheme, by setting two rectification branches, realize rectification module to the electric current of energization input into
Row processing, ensure that the electric current for flowing into control module is direct current, wherein, the first rectification branch first including cathode docking is whole
Diode and the second rectifier diode are flowed, the second rectification branch includes third rectifier diode and the 4th rectification two of anode docking
Pole pipe.
Further, the endpoint of cathode docking is connected to VCC ends by pull-up resistor, and the endpoint of anode docking is connected to the ground
Line, by the conducting and shutdown of diode, control current direction is positively or negatively, that is, to control the electric current for flowing into control module
Direct current.
For example, when alternating-current voltage source exports forward voltage, the first rectifier diode of control is led with the 4th rectifier diode
Logical, the second rectifier diode of control is turned off with third rectifier diode, by the first rectifier diode and the 4th rectifier diode shape
Into circuit.
In any of the above-described technical solution, it is preferable that high-frequency model further includes：Filtering unit, the capacitance being connected in parallel and
Resistance, the input terminal of filtering unit are connected to the high level end of energization input；Restore bridge pile component, restore bridge pile component and include
The first of annular series connection restores branch and second restores branch, and first restores the first recovery diode that branch includes cathode docking
Restore the third recovery diode and the 4th recovery diode that branch includes anode docking with the second recovery diode, second,
In, the public connecting end of the first recovery diode and third recovery diode is connected to the output terminal of filtering unit, and second restores
The public connecting end of diode and the 4th recovery diode is connected to the low level end of energization input, and the endpoint of cathode docking connects
The input terminal of optical coupling module is connected to, the endpoint of anode docking is connected to the input terminal of LED lamp source.
In the technical scheme, by the way that the input terminal of filtering unit to be connected to the high level end of energization input, effectively
Ground improves the stability of voltage, improves service life, realizes the filtering to power frequency so that high-frequency current can control
The conducting of optical coupling module, by the way that the first recovery diode of bridge pile component and the public connecting end of third recovery diode will be restored
It is connected to the output terminal of filtering unit, it is defeated that the public connecting end of the second recovery diode and the 4th recovery diode is connected to power supply
Enter the low level end at end, realize that rectification module handles the electric current of energization input, ensure that the electricity for flowing into control module
It flows for direct current.By the way that the endpoint that cathode docks to be connected to the input terminal of optical coupling module, the endpoint of anode docking is connected to LED
The input terminal of lamp source, for the high-frequency current of high-frequency model output when flowing through optical coupling module, control optical coupling module conducting, is LED light
Source powers, meanwhile, by the VCC ends of control module down for low level, control module is stopped, then by electric ballast
Wiring road direction LED lamp sources are powered, and operatively compatible electric ballast terminated line and Inductive ballast terminated line improve
The Stability and dependability of LED lamp source performance.
Wherein, restore bridge pile component to include first and restore branch and second restoring branch, first restores branch and second extensive
Multiple branch annular series connection, the first recovery diode and the second recovery diode that the first recovery branch is docked including cathode, second
Restore third recovery diode and the 4th recovery diode that branch includes anode docking.
In any of the above-described technical solution, it is preferable that further include：Current-limiting resistance, set on the endpoint and optocoupler of cathode docking
Between module.
In the technical scheme, it between by the way that leakage resistance is set on the endpoint and optical coupling module that cathode docks, effectively protects
Optical coupling module is protected, is conducive to improve the reliability of optical coupling module.
In any of the above-described technical solution, it is preferable that Inductive ballast terminated line further includes：Power tube switchs, power
The driving end of pipe switch is connected to control module, and the input terminal of power tube switch is connected to the low level end of energization input；Two
Pole pipe, the cathode of diode are connected to the output terminal of power tube switch, the plus earth of diode, wherein, power tube switch
Output terminal is connected to the input terminal of LED lamp source as the output terminal of Inductive ballast terminated line.
In the technical scheme, by the way that power tube switch is connected to control module, and the input terminal that power tube is switched
The level terminal of power supply input end is connected to, it is real by control module control power tube switch when matching is connected to Inductive ballast
Now to the power supply of LED lamp source, in addition, by setting diode, and the cathode of diode is connected to the output of power tube switch
The phenomenon that holding, plus earth, effectively reducing voltage or current break reduces the probability that power tube switch is reversed breakdown.
In any of the above-described technical solution, it is preferable that further include：Ac filter component is connected in series in power tube switch
Output terminal and LED lamp source input terminal between, for filtering out the AC noise in first kind electric signal.
In the technical scheme, by setting ac filter component, the output terminal and LED of power tube switch are connected in series in
Between the input terminal of lamp source, the AC noise in first kind electric signal is effectively reduced.
In any of the above-described technical solution, it is preferable that first frequency range includes 50Hz~60Hz, second frequency range packet
Include 30KHz~50KHz.
In any of the above-described technical solution, it is preferable that further include：Electrolytic capacitor is connected to Inductive ballast terminated line
Output terminal, and be connected in parallel to the output terminal of electric ballast terminated line.
In the technical scheme, it is real by setting electrolytic capacitor and being connected to the output terminal of Inductive ballast terminated line
Show and the output signal of Inductive ballast terminated line has been filtered, eliminated the interference in output signal, be conducive to carry
The accuracy of high RST sampling.
For example, when reduction trend occurs in output signal, electrolytic capacitor assembly electric discharge delays becoming for output signal reduction
Gesture, when output signal, which reduces trend, to be eliminated, electrolytic capacitor assembly charging so that output signal is in stable state.
The technical solution of second aspect according to the present utility model provides a kind of luminaire, including：LED lamp source；
Signal output end such as the LED drive power circuit of any of the above-described technical solution is connected to the signal input part of LED lamp source.
The additional aspect and advantage of the utility model will provide in following description section, partly will be from following description
In become apparent or recognized by the practice of the utility model.
Description of the drawings
The above-mentioned and/or additional aspect and advantage of the utility model will in the description from combination accompanying drawings below to embodiment
Become apparent and be readily appreciated that, wherein：
Fig. 1 shows the schematic diagram of the LED drive power circuit of one embodiment according to the present utility model；
Fig. 2 shows the signals of the LED drive power circuit access rectifier of one embodiment according to the present utility model
Figure.
Wherein, the preset relation in Fig. 1 to Fig. 2 between reference numeral and component is：
102 rectification modules, 104 control modules, 106 high-frequency models, 108 optical coupling modules, the first rectifier diodes of D1, D2
Two rectifier diodes, D3 thirds rectifier diode, the 4th rectifier diodes of D4, DB1 restore bridge pile component, R6 current-limiting resistances, Q1
Power tube switch, U1 microcontrollers, U2 optocouplers, CE1 electrolytic capacitors, FU fuses, the first capacitances of C1, the second capacitances of C2, C3 thirds
Capacitance, the 4th capacitances of C4, R1 first resistors, R2 second resistances, R3 3rd resistors, the 4th resistance of R4, the 5th resistance of R5, R7 the 7th
Resistance, the first inductance of L1, the 5th diodes of D5, the 6th diodes of D6.
Specific embodiment
In order to be more clearly understood that the above-mentioned purpose of the utility model, feature and advantage, below in conjunction with the accompanying drawings and have
The utility model is further described in detail in body embodiment.It should be noted that in the absence of conflict, this Shen
The feature in embodiment and embodiment please can be combined with each other.
Many details are elaborated in the following description in order to fully understand the utility model, still, this practicality
Novel to be implemented using other different from other modes described here, therefore, the scope of protection of the utility model is simultaneously
It is not limited by following public specific embodiment.
Fig. 1 shows the schematic diagram of the LED drive power circuit of one embodiment according to the present utility model.
Fig. 2 shows the signals of the LED drive power circuit access ballast of one embodiment according to the present utility model
Figure.
The LED drive power circuit of embodiment according to the present utility model is carried out specifically with reference to Fig. 1 and Fig. 2
It is bright.
As shown in Figure 1, the LED drive power circuit of embodiment according to the present utility model, including：Inductive ballast matches
Circuit, equipped with control module 104, the VCC ends of control module 104 are connected to energization input by pull-up resistor；Electronic ballast
Device terminated line, high-frequency model 106 and optical coupling module 108 equipped with series connection, the input terminal of high-frequency model 106 are connected to power supply
Input terminal, the output terminal of high-frequency model 106 are connected to the input terminal of optical coupling module 108, and the VCC ends of control module 104 are also connected with
To the output terminal of optical coupling module 108, wherein, when the AC signal frequency of energization input belongs to first frequency range, high frequency mould
Block 106 and optical coupling module 108 are turned off, and the voltage at the VCC ends of control module 104 is pulled up resistance and draws high as high level, for
Inductive ballast terminated line exports first kind electric signal to LED lamp source, and the AC signal frequency of energization input belongs to second
During frequency range, high-frequency model 106 and optical coupling module 108 are both turned on, and the voltage at the VCC ends of control module 104 is by optical coupling module
108 down for low level, so that electric ballast terminated line exports type telecommunications No. the second to LED lamp source.
In the technical scheme, by by the VCC ends of the control module 104 in Inductive ballast terminated line through pull-up
Resistance is connected to power supply output terminal, when matching is connected to Inductive ballast, due to Inductive ballast output low frequency signal, electronics
Ballast terminated line no signal current, at this time the voltage at the VCC ends of control module 104 be pulled up resistance and draw high as high level,
So that Inductive ballast terminated line is powered to LED lamp source.And when matching is connected to electric ballast, due to electric ballast
High-frequency signal is exported, at this time 106 optical coupling module of high-frequency model, 108 ON operation, and then trigger optical coupling module 108 and work, that is, controlled
Optical coupling module 108 is connected when optical coupling module 108 processed has high-frequency current in power supply circuit, at this point, the VCC ends of control module 104
Voltage by optical coupling module 108 down for low level, control module 104 is stopped, then from electric ballast terminated line to
LED lamp source is powered.
To sum up, by above-mentioned LED drive power circuit, operatively compatible electric ballast terminated line and inductance ballast
Device terminated line improves the Stability and dependability of LED lamp source performance, and of simple structure and low cost so that user is more
It need not consider that circuit is changed when changing LED lamp source, promote user experience.
For example, when LED drive power circuit is connected to Inductive ballast, the power frequency of Inductive ballast output is
50Hz, current signal cannot be by high-frequency models 106, and optical coupling module 108 is not turned at this time, the electricity at the VCC ends of control module 104
Pressure is pulled up resistance and draws high as high level, is powered from Inductive ballast terminated line to LED lamp source, works as LED drive power circuit
When being connected to electric ballast, the power frequency of electric ballast output is 30KHz, and current signal can pass through high-frequency model
106,108 ON operation of optical coupling module so that the VCC ends ground connection of the control module 104 in Inductive ballast terminated line, i.e.,
Control module 104 is stopped, and is powered from electron rectifier terminated line to LED lamp source.
As shown in Figure 1, control module 104 includes microcontroller U1, the VCC ends of control module 104 are microcontroller U1
VCC pin, optical coupling module 108 include optocoupler U2, and the VCC ends of the microcontroller U1 in control module 104 are connected with optocoupler U2.
In any of the above-described technical solution, it is preferable that Inductive ballast terminated line further includes：Rectification module 102, series connection
Between energization input and control module 104, for carrying out rectification processing in advance to the signal for flowing into control module 104.
In the technical scheme, it is real by the way that rectification module 102 is series between energization input and control module 104
Show rectification module 102 to handle the electric current of energization input, ensure that the electric current for flowing into control module 104 is direct current
Electricity improves the Stability and dependability of LED lamp source performance, is conducive to promote user experience.
In any of the above-described technical solution, it is preferable that rectification module 102 includes：The first of parallel connection access energization input
Rectification branch and the second rectification branch, the first rectification branch include the first rectifier diode D1 and the second rectification two of cathode docking
Pole pipe D2, the second rectification branch include the third rectifier diode D3 and the 4th rectifier diode D4 of anode docking, wherein, cathode
The endpoint of docking is connected to VCC ends by pull-up resistor, and the endpoint of anode docking is connected to ground wire.
In the technical scheme, by setting two rectification branches, electric current of the rectification module 102 to energization input is realized
It is handled, ensure that the electric current for flowing into control module 104 is direct current, wherein, the first rectification branch includes cathode docking
First rectifier diode D1 and the second rectifier diode D2, the second rectification branch include the third rectifier diode D3 of anode docking
With the 4th rectifier diode D4.
Further, the endpoint of cathode docking is connected to VCC ends by pull-up resistor, and the endpoint of anode docking is connected to the ground
Line, by the conducting and shutdown of diode, control current direction is positively or negatively, i.e. control flows into the electricity of control module 104
It flows for direct current.
For example, when alternating-current voltage source exports forward voltage, the first rectifier diode D1 and the 4th rectifier diode are controlled
D4 is connected, and the second rectifier diode D2 of control and third rectifier diode D3 is turned off, whole by the first rectifier diode D1 and the 4th
Flow diode D4 forming circuits.
In any of the above-described technical solution, it is preferable that high-frequency model 106 further includes：Filtering unit, the capacitance being connected in parallel
And resistance, the input terminal of filtering unit are connected to the high level end of energization input；Restore bridge pile component DB1, restore bridge heap group
Part DB1 includes the first of annular series connection and restores branch and the second recovery branch, and first restores first that branch includes cathode docking
Recovery diode and the second recovery diode, second restores third recovery diode and the 4th recovery that branch includes anode docking
Diode, wherein, the public connecting end of the first recovery diode and third recovery diode is connected to the output terminal of filtering unit,
The public connecting end of second recovery diode and the 4th recovery diode is connected to the low level end of energization input, cathode docking
Endpoint be connected to the input terminal of optical coupling module 108, the endpoint of anode docking is connected to the input terminal of LED lamp source.
In the technical scheme, by the way that the input terminal of filtering unit to be connected to the high level end of energization input, effectively
Ground improves the stability of voltage, improves service life, realizes the filtering to power frequency so that high-frequency current can control
The conducting of optical coupling module 108, by the way that the first recovery diode of bridge pile component DB1 and the public affairs of third recovery diode will be restored
Connecting pin is connected to the output terminal of filtering unit, the public connecting end connection of the second recovery diode and the 4th recovery diode altogether
It to the low level end of energization input, realizes that rectification module 102 handles the electric current of energization input, ensure that inflow control
The electric current of molding block 104 is direct current.By the way that the endpoint that cathode docks to be connected to the input terminal of optical coupling module 108, anode pair
The endpoint connect is connected to the input terminal of LED lamp source, the high-frequency current that high-frequency model 106 exports when flowing through optical coupling module 108,
Control optical coupling module 108 is connected, and powers for LED lamp sources, meanwhile, by the VCC ends of control module 104 down for low level, control
Module 104 is stopped, then is powered from electric ballast terminated line to LED lamp source, operatively compatible electric ballast
With circuit and Inductive ballast terminated line, the Stability and dependability of LED lamp source performance is improved.
Wherein, restore bridge pile component DB1 and include the first recovery branch and the second recovery branch, first restores branch and second
Restore the series connection of branch annular, first restores the first recovery diode and the second recovery diode that branch includes cathode docking, the
Two restore the third recovery diode and the 4th recovery diode that branch includes anode docking.
In any of the above-described technical solution, it is preferable that further include：Current-limiting resistance R6, set on the endpoint and light of cathode docking
Between coupling module 108.
In the technical scheme, by the way that leakage resistance is set between the endpoint of cathode docking and optical coupling module 108, effectively
Optical coupling module 108 is protected on ground, is conducive to improve the reliability of optical coupling module 108.
In any of the above-described technical solution, it is preferable that Inductive ballast terminated line further includes：Power tube switchs Q1, work(
The driving end of rate pipe switch Q1 is connected to control module 104, and the input terminal of power tube switch Q1 is connected to the low of energization input
Level terminal；Diode, the cathode of diode are connected to the output terminal of power tube switch Q1, the plus earth of diode, wherein, work(
The output terminal of rate pipe switch Q1 is connected to the input terminal of LED lamp source as the output terminal of Inductive ballast terminated line.
In the technical scheme, by the way that power tube switch Q1 is connected to control module 104, and by power tube switch Q1's
Input terminal is connected to the level terminal of power supply input end, and when matching is connected to Inductive ballast, power is controlled by control module 104
Pipe switch Q1 realizes the power supply to LED lamp source, in addition, being connected to power tube by setting diode, and by the cathode of diode
The output terminal of Q1, plus earth are switched, the phenomenon that effectively reducing voltage or current break, it is anti-to reduce power tube switch Q1
To the probability of breakdown.
In any of the above-described technical solution, it is preferable that further include：Ac filter component is connected in series in power tube switch
Between the output terminal of Q1 and the input terminal of LED lamp source, for filtering out the AC noise in first kind electric signal.
In the technical scheme, by setting ac filter component, be connected in series in the output terminal of power tube switch Q1 with
Between the input terminal of LED lamp source, the AC noise in first kind electric signal is effectively reduced.
In any of the above-described technical solution, it is preferable that first frequency range includes 50Hz~60Hz, second frequency range packet
Include 30KHz~50KHz.
In any of the above-described technical solution, it is preferable that further include：Electrolytic capacitor CE1 is connected to Inductive ballast matched line
The output terminal on road, and it is connected in parallel to the output terminal of electric ballast terminated line.
In the technical scheme, by setting electrolytic capacitor CE1 and being connected to the output terminal of Inductive ballast terminated line,
It realizes and the output signal of Inductive ballast terminated line is filtered, eliminate the interference in output signal, be conducive to
Improve the accuracy of signal sampling.
For example, when reduction trend occurs in output signal, the electric discharge of electrolytic capacitor CE1 components delays what output signal reduced
Trend, when output signal, which reduces trend, to be eliminated, electrolytic capacitor CE1 components charging so that output signal is in stable state.
In addition, the LED drive power circuit in the utility model, further includes：Fuse FU, is connected to ballast and LED
Between driving power circuit；First capacitance C1, is connected in parallel on first resistor R1 in control module 104；Second capacitance C2 and third
The VCC ends of microcontroller U1 are connect by capacitance C3 series connection with COMP ends, and the second capacitance C2 is additionally operable to the VCC ends of connection microcontroller U1
With GND ends；Second resistance R2 and the 5th diode D5 are connected in control module 104；6th diode D6 is connected in series in
Between the drain electrode of power tube switch Q1 and ground wire；The grid (driving end) of power tube switch Q1 is connected to microcontroller U1's
GATE ends；5th resistance R5 is connected between the FB ends of microcontroller U1 and the signal input part of LED lamp source, is exported for detecting
Feedback signal；3rd resistor R3 connects with the first inductance L1 accesses the CS ends of microcontroller U1；One end access the of 4th resistance R4
Between five resistance R5 and the FB ends of microcontroller U1, the other end of the 4th resistance R4 access 3rd resistor R3 and the first inductance L1 it
Between.In addition, the filtering unit in high-frequency model 106 includes the 7th resistance R7 and the 4th capacitance C4 in parallel.
A kind of luminaire of embodiment according to the present utility model, including：LED lamp source；Such as any of the above-described technical side
The signal output end of the LED drive power circuit of case is connected to the signal input part of LED lamp source.
As shown in Fig. 2, the AC power of ballast access AC+~AC ﹣, exports LED drive power, LED drive power
Zero line L and zero line side N is connect respectively with two needles of shell one end of LED lamp source, two endpoints of second voltage input terminal
P1 and P2 is connect respectively with two needles of the other end of LED lamp source, input terminal LED+ and the LED ﹣ and LED light of LED drive power
The positive/negative end of plate connects respectively.
Wherein, when the ballast of connection is Inductive ballast, LED drive power is low-frequency current, and above-mentioned LED lamp source is led to
Inductive ballast terminated line normal work is crossed, when the ballast of connection is electric ballast, LED drive power is high-frequency electrical
Stream, above-mentioned LED lamp source are worked normally by electric ballast terminated line.
The technical solution of the utility model is described in detail above in association with attached drawing, the utility model proposes a kind of LED drives
Dynamic power circuit and luminaire, by the way that the VCC ends of the control module in Inductive ballast terminated line are connected through pull-up resistor
Power supply output terminal is connected to, when matching is connected to Inductive ballast, due to Inductive ballast output low frequency signal, electric ballast
Terminated line no signal current, at this time the voltage at the VCC ends of control module be pulled up resistance and draw high as high level, for inductance town
Device terminated line is flowed to power to LED lamp source.And when matching is connected to electric ballast, due to electric ballast output high frequency letter
Number, high-frequency model optical coupling module ON operation, and then trigger optical coupling module work at this time controls optical coupling module in power supply circuit
In when having high-frequency current optical coupling module be connected, at this point, the voltage at the VCC ends of control module by optical coupling module down for low level,
Control module is stopped, then is powered from electric ballast terminated line to LED lamp source, operatively compatible electric ballast
With circuit and Inductive ballast terminated line, the Stability and dependability of LED lamp source performance, and simple in structure, cost are improved
It is cheap so that user need not consider that circuit is changed when replacing LED lamp source, promote user experience.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of LED drive power circuit, which is characterized in that including：
Inductive ballast terminated line, equipped with control module, the VCC ends of the control module are connected to power supply by pull-up resistor
Input terminal；
Electric ballast terminated line, high-frequency model and optical coupling module equipped with series connection, the input terminal connection of the high-frequency model
To the energization input, the output terminal of the high-frequency model is connected to the input terminal of the optical coupling module, the control module
VCC ends be additionally coupled to the output terminal of the optical coupling module,
Wherein, when the AC signal frequency of the energization input belongs to first frequency range, the high-frequency model and the light
Coupling module is turned off, and the voltage at the VCC ends of the control module is drawn high by the pull-up resistor as high level, for the inductance
Ballast terminated line exports first kind electric signal to LED lamp source, and the AC signal frequency of the energization input belongs to second
During frequency range, the high-frequency model and the optical coupling module are both turned on, and the voltage at the VCC ends of the control module is by the light
Coupling module is down for low level, so that the electric ballast terminated line exports type telecommunications No. the second to the LED lamp source.
2. LED drive power circuit according to claim 1, which is characterized in that the Inductive ballast terminated line is also
Including：
Rectification module is series between the energization input and the control module, for flowing into the control module
Signal carries out rectification processing in advance.
3. LED drive power circuit according to claim 2, which is characterized in that the rectification module includes：
Parallel connection accesses the first rectification branch and the second rectification branch of the energization input, and the first rectification branch includes the moon
The first rectifier diode and the second rectifier diode of pole docking, the second rectification branch include the third rectification of anode docking
Diode and the 4th rectifier diode,
Wherein, the endpoint of the cathode docking is connected to the VCC ends, the endpoint of the anode docking by the pull-up resistor
It is connected to ground wire.
4. LED drive power circuit according to claim 1, which is characterized in that the high-frequency model further includes：
Filtering unit, the capacitance and resistance being connected in parallel, the input terminal of the filtering unit are connected to the energization input
High level end；
Restore bridge pile component, the recovery bridge pile component includes the first of annular series connection and restores branch and the second recovery branch, institute
The first recovery diode and the second recovery diode that the first recovery branch includes cathode docking are stated, described second restores branch packet
The third recovery diode and the 4th recovery diode of anode docking are included,
Wherein, the public connecting end of first recovery diode and the third recovery diode is connected to the filtering unit
Output terminal, the public connecting end of second recovery diode and the 4th recovery diode is connected to the supply input
The low level end at end, the endpoint of the cathode docking are connected to the input terminal of the optical coupling module, the endpoint of the anode docking
It is connected to the input terminal of LED lamp source.
5. LED drive power circuit according to claim 4, which is characterized in that further include：
Current-limiting resistance, between the endpoint and the optical coupling module of cathode docking.
6. LED drive power circuit according to claim 1, which is characterized in that the Inductive ballast terminated line is also
Including：
Power tube switchs, and the driving end of the power tube switch is connected to the control module, the input of the power tube switch
End is connected to the low level end of the energization input；
Diode, the cathode of the diode are connected to the output terminal of the power tube switch, the plus earth of the diode,
Wherein, the output terminal of the power tube switch is connected to described as the output terminal of the Inductive ballast terminated line
The input terminal of LED lamp source.
7. LED drive power circuit according to claim 6, which is characterized in that further include：
Ac filter component is connected in series between the output terminal of the power tube switch and the input terminal of the LED lamp source, uses
In filtering out the AC noise in the first kind electric signal.
8. LED drive power circuit according to any one of claim 1 to 7, which is characterized in that
The first frequency range includes 50Hz~60Hz, and the second frequency range includes 30KHz~50KHz.
9. LED drive power circuit according to any one of claim 1 to 7, which is characterized in that further include：
Electrolytic capacitor, is connected to the output terminal of the Inductive ballast terminated line, and is connected in parallel to the electric ballast
The output terminal of terminated line.
10. a kind of luminaire, which is characterized in that including：
LED lamp source；
LED drive power circuit as claimed in any one of claims 1-9 wherein, the signal output of the LED drive power circuit
End is connected to the signal input part of the LED lamp source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721501564.9U CN207475930U (en) | 2017-11-13 | 2017-11-13 | LED drive power circuit and luminaire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721501564.9U CN207475930U (en) | 2017-11-13 | 2017-11-13 | LED drive power circuit and luminaire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207475930U true CN207475930U (en) | 2018-06-08 |
Family
ID=62263737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721501564.9U Active CN207475930U (en) | 2017-11-13 | 2017-11-13 | LED drive power circuit and luminaire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207475930U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107734778A (en) * | 2017-11-13 | 2018-02-23 | 江西美的贵雅照明有限公司 | LED drive power circuit and luminaire |
-
2017
- 2017-11-13 CN CN201721501564.9U patent/CN207475930U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107734778A (en) * | 2017-11-13 | 2018-02-23 | 江西美的贵雅照明有限公司 | LED drive power circuit and luminaire |
| CN107734778B (en) * | 2017-11-13 | 2024-02-09 | 美智光电科技股份有限公司 | LED driving power circuit and light emitting device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104427699B (en) | LED signal lamp and its LED drive circuit | |
| CN201303436Y (en) | Double rectifier-bridge supply circuit and LED daylight lamp using same | |
| CN106982493A (en) | A kind of under-voltage protecting circuit for LED lamp | |
| CN107734778A (en) | LED drive power circuit and luminaire | |
| CN110798927A (en) | LED drive circuit based on T-shaped lamp tube | |
| CN101909376B (en) | High-power LED drive circuit | |
| CN202721870U (en) | Built-in dimming driving module for LED | |
| CN207475930U (en) | LED drive power circuit and luminaire | |
| CN101695207B (en) | LED tube circuit | |
| CN103152894A (en) | Sectional type LED (light emitting diode) driving circuit based on AC (alternating current) power supply | |
| CN202738178U (en) | LED voltage reduction drive circuit | |
| TWI474755B (en) | Driving device for lighting fixture | |
| CN101394135B (en) | Control system and controller power source for electric appliance | |
| CN203734880U (en) | High voltage integration AC LED multistage linear drive device | |
| CN207427521U (en) | A kind of LED illumination replaces light source | |
| CN109068444A (en) | A kind of single-stage non-isolation type valley fill type no electrolytic capacitor LED drive power and switching method | |
| CN103379694B (en) | Lamp driving device | |
| CN201479415U (en) | LED lamp tube circuit | |
| CN205005320U (en) | Driving circuit of light -emitting diode (LED) fluorescent tube | |
| CN201382384Y (en) | LED lamp | |
| CN202679708U (en) | LED (light emitting diode) driving circuit | |
| CN209472801U (en) | A kind of LED daylight lamp circuit of compatible alternating current and electric ballast | |
| CN202035173U (en) | Nonpolarity dimmable LED light | |
| CN207692103U (en) | A kind of driving circuit for G4 LED light | |
| CN201368366Y (en) | LED lighting energy-saving lamp device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 335400 Guixi Industrial Park No. 1, Yingtan City, Jiangxi Province Co-patentee after: Midea Group Co., Ltd. Patentee after: Meizhi Photoelectric Technology Co., Ltd. Address before: 335400 Guixi Industrial Park No. 1, Yingtan City, Jiangxi Province Co-patentee before: Midea Group Co., Ltd. Patentee before: Jiangxi Meidi Guiya Lighting Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200605 Address after: 335400 No. 1 Industrial Park, Yingtan, Jiangxi, Guixi Patentee after: MEIZHI PHOTOELECTRIC TECHNOLOGY Co.,Ltd. Address before: 335400 No. 1 Industrial Park, Yingtan, Jiangxi, Guixi Co-patentee before: MIDEA GROUP Co.,Ltd. Patentee before: MEIZHI PHOTOELECTRIC TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 335400 No. 1 Industrial Park, Yingtan, Jiangxi, Guixi Patentee after: Meizhi Optoelectronic Technology Co., Ltd Address before: 335400 No. 1 Industrial Park, Yingtan, Jiangxi, Guixi Patentee before: MEIZHI PHOTOELECTRIC TECHNOLOGY Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |