CN207369360U - L ED driving power supply and lamp - Google Patents
L ED driving power supply and lamp Download PDFInfo
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- CN207369360U CN207369360U CN201721239719.6U CN201721239719U CN207369360U CN 207369360 U CN207369360 U CN 207369360U CN 201721239719 U CN201721239719 U CN 201721239719U CN 207369360 U CN207369360 U CN 207369360U
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- 230000002411 adverse Effects 0.000 claims description 5
- 239000011324 bead Substances 0.000 claims description 5
- 238000005286 illumination Methods 0.000 abstract description 8
- 230000007613 environmental effect Effects 0.000 abstract 1
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- 230000006978 adaptation Effects 0.000 description 2
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- 230000002829 reductive effect Effects 0.000 description 2
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- 230000009286 beneficial effect Effects 0.000 description 1
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- 229910044991 metal oxide Inorganic materials 0.000 description 1
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Abstract
the utility model discloses a L ED drive power supply and lamps and lanterns, wherein, the L ED drive power supply that this L ED drive power supply adopted has increased direct current input circuit, this direct current input circuit is connected to the constant current voltage limiting circuit of AC input side, the input of one of them device in EMC filter circuit or the PFC circuit, can realize AC power supply alone, DC power supply alone, can also realize exchanging and DC hybrid power supply even in some examples, thereby make the L ED lamps and lanterns that adopt this L ED drive power supply can adapt to AC electric wire netting and DC electric wire netting simultaneously, through the utility model discloses, solved the problem that L ED light utensil can not adapt to the mixed power network environment of DC microgrid and AC electric wire netting, improved the electric wire netting environmental adaptability of L ED illumination lamps and lanterns.
Description
Technical field
Field of illuminating lamps is the utility model is related to, in particular to a kind of light emitting diode (Light Emitting
Diode, referred to as LED) driving power and lamps and lanterns.
Background technology
Illumination is used as the most important consumption ways of electric energy, accounts for more than the 20% of global generated energy, and LED illumination lamp conduct
A new generation's illumination, is different from traditional halogen tungsten lamp etc., has high, the energy saving advantage of light efficiency.And currently mainly use electric main
Complete illuminator power supply, if to ensure good Electro Magnetic Compatibility (Electromagnetic Compatibility,
Referred to as EMC) and filter circuit, rectification circuit, circuit of power factor correction may not included to electric network pollution, control topology
And the constant-current circuit of LED drivings.Governing series are more, and conversion energy consumption is higher, and LED drive power efficiency is lower, the light efficiency of lamps and lanterns
Or energy-saving effect is also lower.
With the rise of new energy (photovoltaic, wind energy etc.), it is not merely water, thermal power station to generate electricity by way of merging two or more grid systems.It passes through inverter
The conversion that new energy can be achieved is grid-connected with applying.And if by direct current conversion and control, direct current is directly utilized, is kept away
Direct current delivers galvanic electricity when exempting from grid-connected, reduces conversion series, raising efficiency, also up to energy saving effect.As each department direct current is micro-
The demonstration of net is established, and the following direct current supply world can the phase.
Direct-current micro-grid and the blended electric power network rings of AC network are not adapted to for the LED illumination lamp in correlation technique
The problem of border, not yet propose to efficiently solve scheme at present.
Utility model content
The utility model provides a kind of LED drive power and lamps and lanterns, at least to solve LED illumination lamp in the prior art
Not the problem of not adapting to the blended electric power network environment of direct-current micro-grid and AC network.
In order to solve the above technical problems, according to the one side of the present embodiment, the utility model provides a kind of LED drivings
Power supply, including：Ac input circuit, EMC filter circuit, exchange (AC)-(direct current) DC rectification circuits, PFC
(Power Factor Correction, referred to as PFC) circuit, and constant current voltage limiting circuit and direct-flow input circuit, wherein,
The ac input circuit, the EMC filter circuit, the AC-DC rectification circuits, the pfc circuit, the perseverance
Ductility limit volt circuit is sequentially connected, and the output terminal of the constant current voltage limiting circuit is used to connect LED lamp bead component；
In the direct-flow input circuit and the constant current voltage limiting circuit, the EMC filter circuit or the pfc circuit
The input terminal connection of one device.
Alternatively, it is described in the case where the direct-flow input circuit is connected with the input terminal of the constant current voltage limiting circuit
Anti-backflow diode is serially connected between the input terminal of direct-flow input circuit and the constant current voltage limiting circuit, to avoid PFC electricity
The DC current adverse current of road output enters the DC power supply being connected with the direct-flow input circuit.
Alternatively, AC power is connected in the ac input circuit, the direct-flow input circuit connects DC power supply
In the case of, the DC voltage of the direct-flow input circuit output is consistent with the DC voltage that the output terminal of the pfc circuit exports.
Alternatively, it is described in the case where the direct-flow input circuit is connected with the input terminal of the EMC filter circuit
AC-DC rectification circuits do path using diode, and power factor is 1.
Alternatively, in the case where the direct-flow input circuit is connected with the input terminal of the pfc circuit, the direct current is defeated
Enter and be serially connected with anti-backflow diode between the input terminal of circuit and the pfc circuit, exported to avoid the AC-DC rectification circuits
DC current adverse current enter the DC power supply that is connected with the direct-flow input circuit.
Alternatively, the direct-flow input circuit and the ac input circuit are also serially connected with start inrush current prevention circuit respectively.
In order to solve the above technical problems, according to the one side of the present embodiment, the utility model provides a kind of lamps and lanterns, bag
Include：Above-mentioned LED drive power and LED lamp bead component.
In the utility model, the LED drive power of use adds direct-flow input circuit, direct-flow input circuit connection
, can to the input terminal of one of device in the constant current voltage limiting circuit of exchange input side, EMC filter circuit or pfc circuit
To realize independent Alternating Current Power Supply, independent direct current supply, or even AC and DC hybrid power supply can also be realized in some instances,
So that AC network and DC grid can be adapted at the same time using the LED lamp of the LED drive power, solve LED photographs
Bright lamp has the problem of blended electric power network environment for not adapting to direct-current micro-grid and AC network, improves LED illumination lamp
Power grid environment adaptability.
Brief description of the drawings
Fig. 1 is the structure diagram one according to the LED drive power of the utility model embodiment；
Fig. 2 is the structure diagram two according to the LED drive power of the utility model embodiment；
Fig. 3 is the structure diagram three according to the LED drive power of the utility model embodiment；
Fig. 4 is the structure of the LED drive power under the alternating current and direct current hybrid power supply state according to the utility model embodiment
Schematic diagram.
Embodiment
Here exemplary embodiment will be illustrated in detail, its example is illustrated in the accompanying drawings.Following description is related to
During attached drawing, unless otherwise indicated, the same numbers in different attached drawings represent the same or similar key element.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistent with the utility model.On the contrary, they be only with such as
The example of the consistent apparatus and method of some aspects be described in detail in the appended claims, the utility model.
The utility model embodiment in order to solve LED drive power conversion series more than and efficiency is low, new-energy grid-connected conversion
Series is more and efficiency is low, and LED drive power does not have the problem of direct current supply or incompatible alternating current and direct current power supply, it is proposed that
The LED drive power and lamps and lanterns of a kind of supplied by AC/DC electricity, make it to have the power supply of exchange interface, DC interface power supply, also have
Alternating current-direct current hybrid power supply ability.The LED drive power that the utility model embodiment provides can have while raising efficiency
Compatibility well.
Embodiment 1
A kind of LED drive power is provided in the present embodiment, and Fig. 1 is driven according to the LED of the utility model embodiment
The structure diagram one of power supply, as shown in Figure 1, the LED drive power includes：Ac input circuit 1, EMC filter circuit 2, AC-
DC rectification circuits 3, pfc circuit 4, and constant current voltage limiting circuit 5 and direct-flow input circuit 6, wherein,
Ac input circuit 1, EMC filter circuit 2, AC-DC rectification circuits 3, pfc circuit 4, constant current voltage limiting circuit 5 are successively
Connection, the output terminal of constant current voltage limiting circuit 5 are used to connect LED lamp bead component；
Direct-flow input circuit 1 is connected with the input terminal of constant current voltage limiting circuit 5.
Above-mentioned EMC filter circuit 2, AC-DC rectification circuits 3, pfc circuit 4, constant current voltage limiting circuit 5 can also use tool
There are the individual devices of corresponding function.
Wherein, ac input circuit 1 is used for the AC network for accessing line voltage, and direct-flow input circuit 6 is used to access straight
Galvanic electricity net, such as direct-current micro-grid.The ac input circuit of the present embodiment can also include the circuits such as start inrush current prevention circuit, protective tube
Or device.
In the case where direct-flow input circuit and ac input circuit are all serially connected with start inrush current prevention circuit, in order to reality
The now selectivity access of start inrush current prevention circuit, can also access control logic circuit by start inrush current prevention circuit, be opened with realizing
The enabled or failure of machine inrush current prevention circuit, as shown in Figure 4.
With reference to figure 1, direct current input is applied directly on constant current voltage limiting circuit 5 (generally DC-DC mapped structures) circuit.
If desired for alternating current and direct current hybrid power supply is realized, then input direct voltage is defined to pfc circuit (booster circuit) output
Voltage is consistent, or pfc circuit output being set as, same DC input voitage grade is consistent.It is PFC to keep direct current supply voltage
The output valve of circuit.
If desired for Alternating Current Power Supply, and compatible direct current is realized, then direct-flow input circuit can be sealed in anti-backflow diode, kept away
Exempt from direct current adverse current and enter direct-flow input circuit.
As only needed AC or DC powered, then it is directly accessed, AC or DC is individually powered, and need to consider bus capacitor
Start shove, add active or passive charging circuit.
Specifically, when only operating in Alternating Current Power Supply, direct current unpowered, routinely circuit works LED drive power, then
Anti-backflow diode (diode as shown in Figure 4, also only can use diode, N-terminal does not have at direct current P ends) prevents voltage output
To interface, ensure to isolate at direct current input interface；
When only operating in direct current supply, unpowered is exchanged, then LED drive power high-efficiency operation, exported in pfc circuit
Rear end adds diode, bypasses prime 220V ac input circuits, EMC filter circuit, AC-DC rectification circuits, pfc circuit；
When working in alternating current-direct current hybrid power supply, can be used control logic circuit, setting power on logic, will use exchange or
Start inrush current prevention circuit at direct current one is (for example, use passive start inrush current prevention, i.e. negative temperature coefficient (Negative
Temperature Coefficient, referred to as NTC) thermistor, connect always in circuit at two direct currents, Alternating Current Power Supply,
Line loss will be increased；Such as use active start inrush current prevention, i.e. applied metal-oxide semiconductor field effect transistor
(Metal-Oxide-Semiconductor Field-Effect Transistor, referred to as MOSFET or MOS) or MOS+
Inductance (L) is connected on major loop, then also increases device consumption, and have certain partial pressure), avoid at the same time existing at supplied by AC/DC electricity
Inrush current prevention circuit works, and reduces efficiency.Due to there are pfc circuit, using Boost topology, being in direct current supply rated voltage
Pfc circuit output plus during anti-backflow diode pressure drop, alternating current-direct current is by hybrid power supply, and if direct current supply is fluctuated, less than specified
Voltage, then direct current supply side be bypassed；Higher than rated voltage, then Alternating Current Power Supply side is bypassed.
Embodiment 2
A kind of LED drive power is provided in the present embodiment, and Fig. 2 is driven according to the LED of the utility model embodiment
The structure diagram two of power supply, as shown in Fig. 2, for the LED drive power is compared to the LED drive power shown in Fig. 1, difference
It is：Direct-flow input circuit 6 is connected with the input terminal of EMC filter circuit 2.
With reference to figure 2, direct-flow input circuit 6 directly shares ac input circuit 1.Can only using Fig. 2 structure LED drive powers
AC or DC is independently-powered, it is impossible to hybrid power supply.So simple, direct, EMC filter circuit 2 is as path, AC-DC rectifications
Circuit does path using diode.
Embodiment 3
A kind of LED drive power is provided in the present embodiment, and Fig. 3 is driven according to the LED of the utility model embodiment
The structure diagram three of power supply, as shown in figure 3, for the LED drive power is compared to the LED drive power shown in Fig. 1, difference
It is：Direct-flow input circuit 6 is connected with the input terminal of pfc circuit 4.
Using the LED drive power of structure shown in Fig. 3, the LED of its PFC PFCs effect and structure shown in Fig. 2
Driving power is identical, but the LED drive power of structure shown in Fig. 3 can be adapted for alternating current and direct current hybrid power supply；It is defeated in direct current
Enter circuit and be also serially connected with anti-backflow diode.
Embodiment 4
A kind of lamps and lanterns are additionally provided in the present embodiment, and the LED which is included as shown in Fig. 1 either Fig. 2 or Fig. 3 drives
Dynamic power supply and LED lamp bead component.
By above-described embodiment or embodiment of the utility model, supplied as a result of the alternating current-direct current of the utility model
The LED drive power and lamps and lanterns of electricity achieve following beneficial effect：
1. reducing the DC-AC inversions conversion of generation of electricity by new energy, the direct utilization rate of new energy is added；
2. add following direct current energy network power supply, illuminator that people generally use, which can be switched fast, to be used；
3. reducing the filter circuit of LED drive power, AC-DC rectification circuits, pfc circuit etc., reduce conversion series,
The efficiency of LED drive power is added, that is, adds the light efficiency of lamps and lanterns.
For the 1st point, the inversion of generation of electricity by new energy DC-AC or DC-DC-AC, are for example, applicable in different photovoltaic modulies and match somebody with somebody
Put, MPPT maximum power point tracking (Maximum Power Point Tracking, referred to as MPPT) optimizing of wide scope, photovoltaic is inverse
Becoming device sets series more, and grid-connected need to not pollute alternating current, it is desirable to filter circuit.And changed using direct DC-DC circuit, hold
The MPPT optimizing of row photovoltaic, establishes direct current network, and control process is simple, series is less.It intuitively shows as improved efficiency 5%
Left and right；
For the 2nd point, current LED illumination lamp uses Alternating Current Power Supply, such as following switching or energy saving upgrading direct current supply, will
Cause LED drive power to scrap, and use supplied by AC/DC electricity mode, not only in the alternating current and direct current power switching transitional period, can mix
Power supply, ensures reliably, and when direct current supply is popularized, also can directly use, be unlikely to scrapping for LED drive power；
For the 3rd point, such as remove filter circuit, AC-DC rectification circuits, pfc circuit, directly accessed using direct current, then
Circuit energy loss 3% or so can be reduced.And cost can also be reduced.
Those skilled in the art will readily occur to this practicality after considering specification and putting into practice utility model disclosed herein
New other embodiments.This application is intended to cover any variations, uses, or adaptations of the utility model, these
Variations, uses, or adaptations follow the general principle of the utility model and including the non-utility models of the utility model
Common knowledge or conventional techniques in the art.Description and embodiments are considered only as exemplary, this practicality is new
The true scope and spirit of type are pointed out by following claim.
It should be appreciated that the accurate knot that the utility model is not limited to be described above and is shown in the drawings
Structure, and various modifications and changes may be made without departing from the scope thereof.The scope of the utility model only will by appended right
Ask to limit.
Claims (7)
- A kind of 1. LED drive power, it is characterised in that including：Ac input circuit, EMC filter circuit, AC-DC rectification circuits, Pfc circuit, and constant current voltage limiting circuit and direct-flow input circuit, wherein,The ac input circuit, the EMC filter circuit, the AC-DC rectification circuits, the pfc circuit, constant current limit Volt circuit is sequentially connected, and the output terminal of the constant current voltage limiting circuit is used to connect LED lamp bead component；The direct-flow input circuit and one in the constant current voltage limiting circuit, the EMC filter circuit or the pfc circuit The input terminal connection of device.
- 2. LED drive power according to claim 1, it is characterised in that in the direct-flow input circuit and the constant current In the case of the input terminal connection of pressure limiting circuit, gone here and there between the input terminal of the direct-flow input circuit and the constant current voltage limiting circuit Anti-backflow diode is connected to, is entered and direct-flow input circuit company to avoid the DC current adverse current of pfc circuit output The DC power supply connect.
- 3. LED drive power according to claim 2, it is characterised in that connect alternating current in the ac input circuit Source, in the case that the direct-flow input circuit connects DC power supply, the DC voltage of the direct-flow input circuit output with it is described The DC voltage of the output terminal output of pfc circuit is consistent.
- 4. LED drive power according to claim 1, it is characterised in that filtered in the direct-flow input circuit and the EMC In the case of the input terminal connection of wave circuit, the AC-DC rectification circuits do path using diode, and power factor is 1.
- 5. LED drive power according to claim 1, it is characterised in that in the direct-flow input circuit and PFC electricity In the case of the input terminal connection on road, counterflow-preventing is serially connected between the input terminal of the direct-flow input circuit and the pfc circuit Diode, enters what is be connected with the direct-flow input circuit to avoid the DC current adverse current of AC-DC rectification circuits output DC power supply.
- 6. LED drive power according to any one of claim 1 to 5, it is characterised in that the direct-flow input circuit and The ac input circuit is also serially connected with start inrush current prevention circuit respectively.
- A kind of 7. lamps and lanterns, it is characterised in that including：LED drive power and LED light as any one of claim 1 to 6 Pearl component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721239719.6U CN207369360U (en) | 2017-09-25 | 2017-09-25 | L ED driving power supply and lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721239719.6U CN207369360U (en) | 2017-09-25 | 2017-09-25 | L ED driving power supply and lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207369360U true CN207369360U (en) | 2018-05-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721239719.6U Active CN207369360U (en) | 2017-09-25 | 2017-09-25 | L ED driving power supply and lamp |
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| CN (1) | CN207369360U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107580393A (en) * | 2017-09-25 | 2018-01-12 | 珠海格力电器股份有限公司 | L ED driving power supply and lamp |
-
2017
- 2017-09-25 CN CN201721239719.6U patent/CN207369360U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107580393A (en) * | 2017-09-25 | 2018-01-12 | 珠海格力电器股份有限公司 | L ED driving power supply and lamp |
| CN107580393B (en) * | 2017-09-25 | 2023-11-07 | 国创能源互联网创新中心(广东)有限公司 | LED driving power supply and lamp |
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Effective date of registration: 20220727 Address after: 519031 room 105-70961, No. 6, Baohua Road, Hengqin new area, Zhuhai City, Guangdong Province (centralized office area) Patentee after: Guochuang energy Internet Innovation Center (Guangdong) Co.,Ltd. Address before: 519070, Jinji Hill Road, front hill, Zhuhai, Guangdong Patentee before: GREE ELECTRIC APPLIANCES,Inc.OF ZHUHAI |
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