CN104780664B - A kind of virtual protection type voltage regulation intelligent grid energy saving control system of frequency conversion in use - Google Patents
A kind of virtual protection type voltage regulation intelligent grid energy saving control system of frequency conversion in use Download PDFInfo
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- CN104780664B CN104780664B CN201510144420.1A CN201510144420A CN104780664B CN 104780664 B CN104780664 B CN 104780664B CN 201510144420 A CN201510144420 A CN 201510144420A CN 104780664 B CN104780664 B CN 104780664B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Abstract
The invention discloses a kind of virtual protection type voltage regulation intelligent grid energy saving control system of frequency conversion in use, mainly by electromagnetic interface filter（1）, with electromagnetic interface filter（1）The bridge rectifier being connected（2）, with bridge rectifier（2）The boost type active power factor correction circuit being connected（3）Deng composition it is characterised in that sampling protection circuit（6）With boost type active power factor correction circuit（3）Between be also serially connected with the parallel compensation circuit of audion（5）.Not only overall structure is relatively simple for the present invention, its Stability and dependability is stronger, and the parallel compensation circuit of present invention audion instead of traditional compensating electric capacity, the volume of control system can not only greatly be reduced, and can also significantly increase the power factor (PF) of whole control system, so that it is guaranteed that the stablizing of system.
Description
Technical field
The present invention relates to electrical network energy-saving field, specifically refer to a kind of virtual protection type voltage regulation intelligent grid energy-saving and frequency-variable and control
System.
Background technology
At present, the raising of the development with urbanization and living standards of the people, the electric energy that city illumination consumes is in geometry base
Number increases, and reduces discharging the call of policy to respond national energy-saving, and the concept of intelligent grid increasingly obtains everybody accreditation.Intelligence
Electrical network is exactly the intellectuality of electrical network, also referred to as " electrical network 2.0 ", and it is built upon integrated, high-speed bidirectional communication network basis
On technology application, enable electrical network reliable, safety, economy, efficiently, environmental friendliness and the target using safety.
Energy-saving and frequency-variable street lamp is a significant element of composition intelligent grid, and the energy-conservation major embodiment of energy-saving and frequency-variable street lamp
On the controller, the most or traditional inductance type ballast of the controller that uses currently on the market, and inductance type ballast
Device has following shortcomings：1st, power factor is very low, adds compensating electric capacity, typically also can only achieve 0.85 about, this makes
Same power needs bigger supply electric current it has to increase the capacity specially becoming (street-lighting transformer), increases the straight of service cable
Footpath, makes cost increase；2nd, inductance type ballast is operated under mains frequency it is necessary in a large number using silicon steel sheet, and makes silicon steel sheet
Material be scarce resource, be unfavorable for environmental protection and the protection of scarce resource；3rd, the power that inductance type ballast is consumed is with defeated
Enter the increase of voltage and increase, unprotected function in addition, therefore in the case of fluorescent tube open circuit or short circuit, be easily damaged
Ballast and its adnexa.
In sum, the energy-saving and frequency-variable controller for road lamp in current intelligent grid frequency conversion energy-saving system can not effectively be realized
The purpose of energy-conservation.
Content of the invention
It is an object of the invention to overcoming energy-saving and frequency-variable controller for road lamp in current intelligent grid frequency conversion energy-saving system to be deposited
The defect that can not effectively realize energy-conservation, a kind of virtual protection type voltage regulation intelligent grid energy saving control system of frequency conversion in use is provided.
Purpose of the present invention technical scheme below is realized：A kind of virtual protection type voltage regulation intelligent grid energy-saving and frequency-variable controls
System, mainly by electromagnetic interface filter, the bridge rectifier that is connected with electromagnetic interface filter, the booster type being connected with bridge rectifier
Passive power factor corrective circuit, the DC/AC high-frequency converter being connected with boost type active power factor correction circuit, with this
Sampling protection circuit and pulse generation drive circuit that DC/AC high-frequency converter is connected, and respectively with sampling protection circuit
The single-chip microcomputer composition being connected with pulse generation drive circuit.Meanwhile, in sampling protection circuit and boost type active power factor (PF)
Also it is serially connected with the parallel compensation circuit of audion between correcting circuit, and between bridge rectifier and DC/AC high-frequency converter
Then it is serially connected with virtual protection mu balanced circuit；, by audion Q4, NAND gate IC, positive pole is whole with bridge-type for described virtual protection mu balanced circuit
The outfan of stream device is connected and polar capacitor C3 that negative pole is then connected with the colelctor electrode of audion Q4, one end and polarity electricity
The negative pole of appearance C3 is connected, the other end is connected with the positive pole of NAND gate IC after diode D2 resistance R12, one end and polarity
The positive pole of the resistance R14 that the positive pole of electric capacity C3 is connected, the other end is connected with the negative pole of NAND gate IC, one end and NAND gate IC
Be connected, resistance that the other end is sequentially connected with the colelctor electrode of audion Q4 after resistance R16 through diode D4, resistance R15
The Zener diode D3 that R13, P pole is connected with the outfan of NAND gate IC, N pole is connected with the colelctor electrode of audion Q4, with
And voltage stabilizing two pole that P pole is connected with the outfan of NAND gate IC, N pole is connected with the junction point of resistance R15 with diode D4
Pipe D5 forms；The base stage of described audion Q4 is connected with the junction point of diode D2 with resistance R12, its emitter stage then with non-
The outfan of door IC is connected；The junction point of the described resistance R16 and resistance R15 then input phase with DC/AC high-frequency converter
Connect.
Further, the parallel compensation circuit of described audion, by voltage source V, is serially connected in the positive pole of voltage source V and bears
Adjustable bridge circuit between pole, the audion power amplification circuit being connected with adjustable bridge circuit, and with adjustable
The audion feedback circuit composition that formula bridge circuit is all connected with audion power amplification circuit.
Described adjustable bridge circuit sequentially concatenates, by head and the tail, resistance R3, resistance R5, resistance R6 and the electricity forming The electric loop
Resistance R4, and one end be connected with the junction point of resistance R3 and resistance R4, the other end after adjustable resistance R2 with audion power
The resistance R1 composition that amplifying circuit is connected；The adjustable side of the described adjustable resistance R2 then junction point phase with resistance R3 and resistance R5
Connect；Described resistance R4 is connected with the positive pole of voltage source V and audion feedback circuit respectively with the junction point of resistance R6, resistance
R5 is then connected with audion power amplification circuit with the junction point of resistance R6, and the junction point of resistance R3 and resistance R5 also with electricity
The negative pole of potential source V is connected.
Described audion power amplification circuit by audion Q1, power amplifier P1, be serially connected in the base stage of audion Q1 with
Resistance R7 between the end of oppisite phase of power amplifier P1, is serially connected in the emitter stage of audion Q1 and the end of oppisite phase of power amplifier P1
Between resistance R8, the electric capacity C1 being in parallel with resistance R8, and be serially connected in the in-phase end of power amplifier P1 and outfan it
Between polar capacitor C2 composition；The in-phase end of described power amplifier P1 is then connected with the junction point of resistance R5 and resistance R6,
Its outfan is then connected with audion feedback circuit.
Described audion feedback circuit is sent out with audion Q2's by audion Q2, audion Q3, power amplifier P2, P pole
The diode D1 that emitter-base bandgap grading is connected, N pole is connected with the outfan of power amplifier P2, is serially connected in the homophase of power amplifier P2
End and outfan between resistance R9, and one end be connected with the emitter stage of audion Q2, the other end after resistance R11 with work(
The resistance R10 composition that the outfan of rate amplifier P2 is connected；The colelctor electrode of described audion Q2 is anti-with power amplifier P2's
Mutually end is connected, and its base stage is then connected with the junction point of resistance R4 and resistance R6, the collection also with audion Q3 for its emitter stage
Electrode is connected；The colelctor electrode of audion Q3 is connected with the outfan of power amplifier P1, its base stage then with resistance R10 with electricity
The junction point of resistance R11 is connected, its grounded emitter.
The present invention compared with prior art, has advantages below and beneficial effect：
(1) overall structure of the present invention is relatively simple, and its Stability and dependability is stronger.
(2) the parallel compensation circuit of present invention audion instead of traditional compensating electric capacity, can not only greatly reduce
The volume of control system, and can also significantly increase the power factor (PF) of whole control system, so that it is guaranteed that system is steady
Fixed.
(3) present invention can guarantee entirely to control by the parallel compensation circuit of audion in the case of short circuit or open circuit
The safety of system processed.
(4) present invention is provided with virtual protection mu balanced circuit, can ensure that and guarantees DC/AC high frequency frequency conversion when peak value in electrical network
The safety of device.
Brief description
Fig. 1 is the overall structure diagram of the present invention.
Fig. 2 is the electrical block diagram of the parallel compensation circuit of audion of the present invention.
Fig. 3 is the electrical block diagram of the virtual protection mu balanced circuit of the present invention.
Wherein, the reference title in the figures above is respectively：
1 electromagnetic interface filter, 2 bridge rectifiers, 3 boost type active power factor correction circuits, 4 DC/AC high frequencies
Converter, the parallel compensation circuit of 5 audions, 6 sampling protection circuits, 7 single-chip microcomputers, 8 pulse generation drive circuits,
9 virtual protection mu balanced circuits.
Specific embodiment
With reference to specific embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited to
This.
Embodiment
As shown in figure 1, the invention mainly comprises having electromagnetic interface filter 1, bridge rectifier 2, boost type active power factor (PF) school
Positive circuit 3, DC/AC high-frequency converter 4, the parallel compensation circuit of audion 5, sampling protection circuit 6, single-chip microcomputer 7, pulse generation
Drive circuit 8 and this nine major part of virtual protection mu balanced circuit 9.
Wherein, sampling protection circuit 6 is used for the adopting of electric current by the voltage at energy-conserving road lamp two ends and through energy-conserving road lamp
Sample result passes to single-chip microcomputer 7, and single-chip microcomputer 7 control pulse generation drive circuit 8 sends lights drive waveforms or normal work drive
, to DC/AC high-frequency converter 4, this DC/AC high-frequency converter 4 is under the driving of high-frequency impulse by active for boosted type work(for dynamic waveform
The unidirectional current of the 400V of rate factor correction circuit 3 boosting becomes the alternating current of high frequency, on startup, by the parallel benefit of audion
Repay circuit 5 produce instantaneous high pressure, so that energy-conserving road lamp is lighted, and single-chip microcomputer 7 according to sampling protection circuit 6 Real-time Collection data,
According to different periods predetermined power size to adjust energy-conserving road lamp in day part constant power operations.
Virtual protection mu balanced circuit 9 is used for guaranteeing cut off in time DC/AC high frequency frequency conversion when peak value in line voltage
The power supply of device 4, so that it is guaranteed that DC/AC high-frequency converter 4 will not be breakdown.Described electromagnetic interface filter 1 is used for preventing electrical network
Higher hamonic wave enters product, prevents the higher hamonic wave of product itself from returning electrical network, and pollutes electrical network, makes product meet national security
Standard, meets corresponding laws and regulations.Bridge rectifier 2 be used for civil power 220V become 310V about pulse direct current；Rise
Die mould APFC 3 is used for the power factor of the whole machine of improving product, makes power factor reach more than 0.98, subtracts
The power supply burden of minor scale power net.Sampling protection circuit 6 is conventional circuit structure, and it is used for the working condition of energy-conserving road lamp of sampling,
The data of sampling delivers to single-chip microcomputer 7, and single-chip microcomputer 7 carries out judging energy-conserving road lamp whether in normal work, the result according to judgement Lai
Decide whether to take protective measure；If normal work, then according to sampled data, to adjust the operating frequency of product, and then
Control the constant of output, realize invariable power and the intelligent dimming function of product.
During operation, single-chip microcomputer 7 adjusts the driving pulse of pulse generation drive circuit 8, this driving pulse according to sampled data
Through isolation, amplify the inverter circuit being supplied to DC/AC high-frequency converter 4, so that power tube is worked in high frequency, so that lamp is sent out
Light.And DC/AC high-frequency converter 4, under the driving of high-frequency impulse, becomes the unidirectional current of 400V in the alternating current of high frequency.
In order to ensure the using effect of the present invention, what the present invention was initiative devises the parallel compensation circuit of audion 5, its
Concrete structure is as shown in Figure 2.That is, the parallel compensation circuit of this audion 5, by voltage source V, is serially connected in the positive pole of voltage source V and bears
Adjustable bridge circuit between pole, the audion power amplification circuit being connected with adjustable bridge circuit, and with adjustable
The audion feedback circuit composition that formula bridge circuit is all connected with audion power amplification circuit.
Wherein, adjustable bridge circuit sequentially concatenates, by head and the tail, resistance R3, resistance R5, resistance R6 and the electricity forming The electric loop
Resistance R4, and one end be connected with the junction point of resistance R3 and resistance R4, the other end after adjustable resistance R2 with audion power
The resistance R1 composition that amplifying circuit is connected.Meanwhile, the junction point phase of the adjustable side of adjustable resistance R2 and resistance R3 and resistance R5
Connect, and resistance R4 is then connected with the positive pole of voltage source V and audion feedback circuit respectively with the junction point of resistance R6, resistance
R5 is then connected with audion power amplification circuit with the junction point of resistance R6, and the junction point of resistance R3 and resistance R5 also with electricity
The negative pole of potential source V is connected.That is, the junction point of the junction point of resistance R3 and resistance R5, and resistance R4 and resistance R6 is as can
Adjust the power input of bridge circuit, it is connected with the negative pole of voltage source V and positive pole respectively；And the company of resistance R3 and resistance R4
Contact, and the junction point of the resistance R5 and resistance R6 then outfan for this adjustable bridge circuit.Therefore, voltage source V just with electricity
The The electric loop composition parallel circuit that resistance R3, resistance R4, resistance R6 and resistance R5 are formed.
Described audion power amplification circuit is by audion Q1, power amplifier P1, resistance R7, resistance R8, electric capacity C1
With polar capacitor C2 composition.During connection, resistance R7 is serially connected between the base stage of audion Q1 and the end of oppisite phase of power amplifier P1,
Resistance R8 is serially connected between the emitter stage of audion Q1 and the end of oppisite phase of power amplifier P1, and electric capacity C1 is then in parallel with resistance R8,
And polar capacitor C2 is then serially connected between in-phase end and the outfan of power amplifier P1.The in-phase end of power amplifier P1 then with
Resistance R5 is connected with the junction point of resistance R6, and its outfan is then connected with audion feedback circuit.
Described audion feedback circuit then by audion Q2, audion Q3, power amplifier P2, diode D1, resistance R9,
Resistance R10 and resistance R11 composition.During connection, the P pole of diode D1 is connected with the emitter stage of audion Q2, its N pole and power
The outfan of amplifier P2 is connected；Resistance R9 is then serially connected between in-phase end and the outfan of power amplifier P2, resistance R10
One end be connected with the emitter stage of audion Q2, the other end is connected with the outfan of power amplifier P2 after resistance R11.
Meanwhile, the colelctor electrode of audion Q2 is connected with the end of oppisite phase of power amplifier P2, and its base stage then with resistance R4 and resistance R6
Junction point be connected, its emitter stage is also connected with the colelctor electrode of audion Q3；The colelctor electrode of audion Q3 and power amplification
The outfan of device P1 is connected, and its base stage is then connected with the junction point of resistance R11 with resistance R10, its grounded emitter.
The outfan forming the parallel compensation circuit of this audion drawn by the outfan of power amplifier P2, and audion Q3
Base stage then form the input of the parallel compensation circuit of this audion.During connection, the base stage of audion Q3 and boost type active
The outfan of power factor correction circuit 3 is connected, to guarantee the correction that boost type active power factor correction circuit 3 is sent
Control signal can promote audion Q3 to turn on, and then starts the parallel compensation circuit of this audion 5.And the parallel benefit of this audion
Repay signal received by circuit 5 after audion power amplification circuit and audion feedback circuit collective effect, its feedback letter
Number then export to sampling protection circuit 6 through power amplifier P2, thus realizing compensation function.For guaranteeing the use effect of the present invention
Really, the resistance of described resistance R3：The resistance of the resistance of resistance R6=resistance R4：The resistance of resistance R5.
The circuit structure of described virtual protection mu balanced circuit 9 is as shown in figure 3, it is by audion Q4, NAND gate IC, polarity electricity
Hold C3, resistance R12, resistance R13, resistance R14, resistance R15, resistance R16 and diode D2, Zener diode D3, diode
D4 and Zener diode D5 composition.During connection, the positive pole of polar capacitor C3 is connected with the outfan of bridge rectifier 2 and bears
Pole is then connected with the colelctor electrode of audion Q4；One end of resistance R12 is connected with the negative pole of polar capacitor C3, its other end warp
It is connected with the positive pole of NAND gate IC after diode D2.One end of resistance R14 is connected with the positive pole of polar capacitor C3, and it is another
End is connected with the negative pole of NAND gate IC；One end of resistance R13 is connected with the positive pole of NAND gate IC, and its other end is sequentially through two
Pole pipe D4, resistance R15 are connected with the colelctor electrode of audion Q4 with after resistance R16；The P pole of described Zener diode D3 with non-
The outfan of door IC is connected, and its N pole is connected with the colelctor electrode of audion Q4；And the P pole of Zener diode D5 and NAND gate
The outfan of IC is connected, and its N pole is then connected with the junction point of resistance R15 with diode D4.The P pole of described diode D4 with
Resistance R13 is connected, and its N pole is connected with the N pole of Zener diode D5.
Meanwhile, the base stage of described audion Q4 be connected with the junction point of diode D2 with resistance R12, its emitter stage then with
The outfan of NAND gate IC is connected；The junction point then input with DC/AC high-frequency converter 4 of described resistance R16 and resistance R15
End is connected.
As described above, the present invention just can be realized well.
Claims (5)
1. a kind of virtual protection type voltage regulation intelligent grid energy saving control system of frequency conversion in use, mainly by electromagnetic interface filter (1), with EMI filtering
The bridge rectifier (2) that device (1) is connected, the boost type active power factor correction circuit being connected with bridge rectifier (2)
(3) the DC/AC high-frequency converter (4), being connected with boost type active power factor correction circuit (3), is become with this DC/AC high frequency
Sampling protection circuit (6) and pulse generation drive circuit (8) that frequency device (4) is connected, and respectively with sampling protection circuit (6)
Single-chip microcomputer (7) composition being connected with pulse generation drive circuit (8) is it is characterised in that in sampling protection circuit (6) and boost
Also it is serially connected with the parallel compensation circuit of audion (5) between type passive power factor corrective circuit (3), and in bridge rectifier
(2) then it is serially connected with virtual protection mu balanced circuit (9) and DC/AC high-frequency converter (4) between；Described virtual protection mu balanced circuit
(9) by audion Q4, NAND gate IC, positive pole is connected with the outfan of bridge rectifier (2) and negative pole is then with audion Q4's
The polar capacitor C3 that colelctor electrode is connected, one end is connected with the negative pole of polar capacitor C3, the other end after diode D2 with
The resistance R12 that the positive pole of not gate IC is connected, one end is connected with the positive pole of polar capacitor C3, the other end and NAND gate IC negative
The resistance R14 that pole is connected, one end is connected with the positive pole of NAND gate IC, the other end is sequentially through diode D4, resistance R15 and electricity
The resistance R13 being connected with the colelctor electrode of audion Q4 after resistance R16, P pole is connected with the outfan of NAND gate IC, N pole and three
The Zener diode D3 that the colelctor electrode of pole pipe Q4 is connected, and P pole be connected with the outfan of NAND gate IC, N pole and two poles
The Zener diode D5 composition that pipe D4 is connected with the junction point of resistance R15；The base stage of described audion Q4 and resistance R12 and two
The junction point of pole pipe D2 is connected, its emitter stage is then connected with the outfan of NAND gate IC；Described resistance R16 and resistance R15
Junction point be then connected with the input of DC/AC high-frequency converter (4)；The P pole of described diode D4 is connected with resistance R13
Connect, its N pole is connected with the N pole of Zener diode D5.
2. a kind of virtual protection type voltage regulation intelligent grid energy saving control system of frequency conversion in use according to claim 1, its feature exists
In the parallel compensation circuit of described audion (5), by voltage source V, is serially connected in adjustable between the positive pole of voltage source V and negative pole
Formula bridge circuit, the audion power amplification circuit being connected with adjustable bridge circuit, and with adjustable bridge circuit and
The audion feedback circuit composition that audion power amplification circuit is all connected.
3. a kind of virtual protection type voltage regulation intelligent grid energy saving control system of frequency conversion in use according to claim 2, its feature exists
In, described adjustable bridge circuit sequentially concatenates resistance R3, resistance R5, resistance R6 and the resistance R4 forming The electric loop by head and the tail,
And one end be connected with the junction point of resistance R3 and resistance R4, the other end after adjustable resistance R2 with audion power amplification electricity
The resistance R1 composition that road is connected；The adjustable side of described adjustable resistance R2 is then connected with the junction point of resistance R3 and resistance R5；
Described resistance R4 is connected with the positive pole of voltage source V and audion feedback circuit respectively with the junction point of resistance R6, resistance R5 with
The junction point of resistance R6 is then connected with audion power amplification circuit, and the junction point of resistance R3 and resistance R5 also with voltage source
The negative pole of V is connected.
4. a kind of virtual protection type voltage regulation intelligent grid energy saving control system of frequency conversion in use according to claim 3, its feature exists
In described audion power amplification circuit, by audion Q1, power amplifier P1, is serially connected in the base stage of audion Q1 and power is put
Resistance R7 between the end of oppisite phase of big device P1, is serially connected between the emitter stage of audion Q1 and the end of oppisite phase of power amplifier P1
Resistance R8, the electric capacity C1 being in parallel with resistance R8, and it is serially connected in the pole between the in-phase end of power amplifier P1 and outfan
Property electric capacity C2 composition；The in-phase end of described power amplifier P1 is then connected with the junction point of resistance R5 and resistance R6, its output
End is then connected with audion feedback circuit.
5. a kind of virtual protection type voltage regulation intelligent grid energy saving control system of frequency conversion in use according to claim 4, its feature exists
In, described audion feedback circuit by audion Q2, audion Q3, the emitter stage phase of power amplifier P2, P pole and audion Q2
Connect, the diode D1 that is connected with the outfan of power amplifier P2 of N pole, be serially connected in the in-phase end of power amplifier P2 with defeated
Go out end between resistance R9, and one end be connected with the emitter stage of audion Q2, the other end after resistance R11 with power amplification
The resistance R10 composition that the outfan of device P2 is connected；The colelctor electrode of described audion Q2 and the end of oppisite phase phase of power amplifier P2
Connect, and its base stage is then connected with the junction point of resistance R4 and resistance R6, the colelctor electrode phase also with audion Q3 for its emitter stage
Connect；The colelctor electrode of audion Q3 is connected with the outfan of power amplifier P1, its base stage then with resistance R10 and resistance R11
Junction point be connected, its grounded emitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510144420.1A CN104780664B (en) | 2015-03-30 | 2015-03-30 | A kind of virtual protection type voltage regulation intelligent grid energy saving control system of frequency conversion in use |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510144420.1A CN104780664B (en) | 2015-03-30 | 2015-03-30 | A kind of virtual protection type voltage regulation intelligent grid energy saving control system of frequency conversion in use |
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| CN104780664B true CN104780664B (en) | 2017-03-08 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006037265A1 (en) * | 2004-10-01 | 2006-04-13 | E. Energy Double Tree Limited | Dimmable lighting system |
| CN101064981A (en) * | 2006-04-27 | 2007-10-31 | 上海比华生态电子技术有限公司 | Fluorescent lamp electronic ballast |
| CN101141842A (en) * | 2006-09-08 | 2008-03-12 | 北方工业大学 | Electronic ballast |
| CN101588072A (en) * | 2008-01-11 | 2009-11-25 | 北京博旺天成科技发展有限公司 | Novel energy-saving power regulator |
| CN102097929A (en) * | 2011-03-18 | 2011-06-15 | 上海交通大学 | Single-level power factor corrector controlled by complete open loop |
-
2015
- 2015-03-30 CN CN201510144420.1A patent/CN104780664B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006037265A1 (en) * | 2004-10-01 | 2006-04-13 | E. Energy Double Tree Limited | Dimmable lighting system |
| CN101064981A (en) * | 2006-04-27 | 2007-10-31 | 上海比华生态电子技术有限公司 | Fluorescent lamp electronic ballast |
| CN101141842A (en) * | 2006-09-08 | 2008-03-12 | 北方工业大学 | Electronic ballast |
| CN101588072A (en) * | 2008-01-11 | 2009-11-25 | 北京博旺天成科技发展有限公司 | Novel energy-saving power regulator |
| CN102097929A (en) * | 2011-03-18 | 2011-06-15 | 上海交通大学 | Single-level power factor corrector controlled by complete open loop |
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|---|---|
| CN104780664A (en) | 2015-07-15 |
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