CN104822212A - High-reliability dual-purpose desk lamp - Google Patents

High-reliability dual-purpose desk lamp Download PDF

Info

Publication number
CN104822212A
CN104822212A CN201510284668.8A CN201510284668A CN104822212A CN 104822212 A CN104822212 A CN 104822212A CN 201510284668 A CN201510284668 A CN 201510284668A CN 104822212 A CN104822212 A CN 104822212A
Authority
CN
China
Prior art keywords
diode
vice
desk lamp
winding
centre tap
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.)
Pending
Application number
CN201510284668.8A
Other languages
Chinese (zh)
Inventor
杨慧萌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Green Dingtian In Wuhan Relaxes Development In Science And Technology Co Ltd
Original Assignee
Green Dingtian In Wuhan Relaxes Development In Science And Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Green Dingtian In Wuhan Relaxes Development In Science And Technology Co Ltd filed Critical Green Dingtian In Wuhan Relaxes Development In Science And Technology Co Ltd
Priority to CN201510284668.8A priority Critical patent/CN104822212A/en
Publication of CN104822212A publication Critical patent/CN104822212A/en
Pending legal-status Critical Current

Links

Abstract

The invention provides a high-reliability dual-purpose desk lamp which comprises the components of a desk lamp base, a switching mode power supply, a lamp stand and a lamp cover. The switching mode power supply comprises a three-phase resonant converter with a central-tapped transformer. A panel computer bracket is arranged on the desk lamp base. Two ends of the panel computer bracket, which contact with the desk lamp base, are respectively provided with a recessed trough. The high-reliability dual-purpose desk lamp which comprises the three-phase resonant converter with the central-tapped transformer has advantages of low loss and high power density. Service life of the desk lamp can be prolonged, and reliability of the desk lamp can be improved. Furthermore a panel computer can be fixed on the desk lamp base.

Description

A kind of high reliability Two purpose desk lamp
Technical field
The invention belongs to illuminations field, particularly a kind of high reliability Two purpose desk lamp.
Background technology
Desk lamp becomes people already and to live the necessity of study, especially for needing be in study or the student in the study of school room for individual study.
Desk lamp traditional is at present while meeting illuminations function, many uses Switching Power Supply carries out folding, the course of work of the Switching Power Supply that traditional desk lamp uses is by " copped wave ", namely the direct voltage of input is cut into amplitude and equals that the pulse voltage of input voltage amplitude realizes.The duty ratio of pulse is regulated by the controller of Switching Power Supply; Once input voltage is cut into ac square wave, its amplitude just can be raised by transformer or reduce, just can be increased the magnitude of voltage of output by the secondary winding number increasing transformer, finally these AC wave shape just obtain VD after rectifying and wave-filtering;
But there is switching loss, the surge voltage that can produce when cut-off switch element and the desk lamp poor work stability caused because of voltage instability in the desk lamp of the Switching Power Supply using above-mentioned desk lamp to use, its loss is high, power density is low, working life and the low problem of reliability; And only play traditional desk lamp of illuminations effect, and traditional function of desk lamp is single, its base while taking desk-top space, when student learns before table, except putting desk lamp, a large amount of books and data etc. is also had to need to launch, and for those students having the demand using panel computer to browse online classes or to search data, place also fixed flat planar computer and become a great problem, room for individual study desk that is especially less for desk-top space and that keep off without lattice; The base of traditional desk lamp then except desk lamp is played stabilization and its on be equipped with except switch, be not effectively used.
Summary of the invention
Technical problem to be solved by this invention, be for the defect in aforementioned background art and deficiency, propose a kind of desk lamp with the Switching Power Supply of the three-phase resonate converter of interphase reactor transformer, its loss is low, power density is high, can improve working life and the reliability of desk lamp; And day by day universal panel computer can be fixed on Bulb holder of table lamp.
The present invention is achieved through the following technical solutions above-mentioned purpose:
For the technical disadvantages that existing desk lamp exists, redesign a kind of high reliability desk lamp, comprise Desk lamp feet, Switching Power Supply, lamp bracket and lampshade, it is characterized in that, described Switching Power Supply comprises the three-phase resonate converter with interphase reactor transformer.
Further, its topological structure is: comprise input voltage Uin, former limit and secondary and all have tapped transformer T, and there are 3 groups of vice-side winding, switch element S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, diode D1, D2, D3, D4, D5, D6, D7, D8, inductance L 1, L2, L3.Above-mentioned switch element can be IGBT, and diode is fast recovery diode.
Further, concrete annexation is: comprise input voltage Uin, former limit and secondary and all have tapped transformer T, switch element S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, diode D1, D2, D3, D4, D5, D6, D7, D8, inductance L 1, L2, L3 and controller, described each switching tube has antiparallel parasitic diode and parasitic capacitance, described transformer T has 3 vice-side winding, first vice-side winding is N3, N4, second vice-side winding is N5, N6, and the 3rd vice-side winding is N7, N8;
Further, the different name end of former limit winding centre tap the first half winding connects the anode of diode D1, the Same Name of Ends of former limit winding centre tap the latter half winding connects the anode of diode D2, the Same Name of Ends of former limit winding centre tap the first half winding N1 is connected with the anode of input voltage Uin with the tie point of the different name end of former limit winding centre tap the latter half winding N2, and the negative terminal of input voltage Uin connects the negative electrode of diode D1, D2;
Further, the first structure exporting phase is: the collector electrode of anode connecting valve element S1, S3 of input voltage Uin, the emitter of negative terminal connecting valve element S2, S4 of input voltage Uin; The emitter of switch element S1 connects the anode of diode D3, the negative electrode of diode D3 connects the Same Name of Ends of first vice-side winding centre tap the first half winding, the different name end of first vice-side winding centre tap the first half winding N3 is connected with the Same Name of Ends of first vice-side winding centre tap the latter half winding N4, and its tie point is connected with one end of inductance L 1, the different name end of first vice-side winding centre tap the latter half winding is connected with the anode of diode D4, the collector electrode of the negative electrode connecting valve element S2 of diode D4; The emitter of switch element S3 is connected with the collector electrode of switch element S4, and the other end of its tie point and inductance L 1 and load are connected;
Further, the second structure exporting phase is: the collector electrode of anode connecting valve element S5, S7 of input voltage Uin, the emitter of negative terminal connecting valve element S6, S8 of input voltage Uin; The emitter of switch element S5 connects the anode of diode D5, the negative electrode of diode D5 connects the Same Name of Ends of second vice-side winding centre tap the first half winding, the different name end of second vice-side winding centre tap the first half winding N5 is connected with the Same Name of Ends of second vice-side winding centre tap the latter half winding N6, and its tie point is connected with one end of inductance L 2, the different name end of second vice-side winding centre tap the latter half winding is connected with the anode of diode D6, the collector electrode of the negative electrode connecting valve element S6 of diode D6; The emitter of switch element S7 is connected with the collector electrode of switch element S8, and the other end of its tie point and inductance L 2 and load are connected;
Further, the 3rd structure exporting phase is: the collector electrode of anode connecting valve element S9, S11 of input voltage Uin, the emitter of negative terminal connecting valve element S10, S12 of input voltage Uin; The emitter of switch element S9 connects the anode of diode D7, the negative electrode of diode D7 connects the Same Name of Ends of the 3rd vice-side winding centre tap the first half winding, the different name end of the 3rd vice-side winding centre tap the first half winding N7 is connected with the Same Name of Ends of the 3rd vice-side winding centre tap the latter half winding N8, and its tie point is connected with one end of inductance L 3, the different name end of the 3rd vice-side winding centre tap the latter half winding is connected with the anode of diode D8, the collector electrode of the negative electrode connecting valve element S10 of diode D8; The emitter of switch element S11 is connected with the collector electrode of switch element S12, and the other end of its tie point and inductance L 3 and load are connected; Controller control switch S1 and S2 alternate conduction, S3 and S4 alternate conduction, S5 and S6 alternate conduction, S7 and S8 alternate conduction, S9 and S10 alternate conduction, S11 and S12 alternate conduction, each output is mutually by resonance circuit that the stray capacitance of respective inductance L 1, L2, L3 and each switch element is formed, the each switch element of conducting when the terminal voltage of each switch element is 0, thus it is open-minded to realize no-voltage.
Further, described switching tube is IGBT or MOSFET.
Further, described input voltage is storage battery, fuel cell or photovoltaic cell.
Further, described each diode is fast recovery diode or Schottky diode.
Further, described load is three-phase alternating current load or rectified three-phase circuit.
Further, described Desk lamp feet is provided with Flat computer support frame.
Further, the two ends that described Flat computer support frame contacts with Desk lamp feet are respectively equipped with Baltimore groove.
Compared with prior art, high reliability desk lamp of the present invention has following advantages:
The switching frequency that the desk lamp with the Switching Power Supply of the three-phase resonate converter of interphase reactor transformer utilizes the form of interphase reactor transformer can realize by control circuit control switch element, makes output voltage become predetermined value.
And because electric current flows through negative direction during each switching elements ON, therefore do not produce switching losses.
And because carried out resonance action, surge voltage during cut-off switch element also can not be produced.
While realizing energy feedback, utilize the parasitic capacitance of inductance and switch element to form Sofe Switch form, do not have unnecessary power capacity, its loss is low, and power density is high, can improve working life and the reliability of desk lamp.
Be located at by Flat computer support frame on Bulb holder of table lamp, user can fixed flat planar computer, and effectively make use of the space of Desk lamp feet.
Accompanying drawing explanation
Fig. 1: Table lamp structure schematic diagram of the present invention;
Fig. 2: the structural representation with the three-phase resonate converter of interphase reactor transformer of the present invention;
Fig. 3: the control impuls sequential chart of switch element S1, S2, S3, S4.
Wherein, 1-Desk lamp feet, 2-Switching Power Supply, 3-lamp bracket, 4-lampshade, 5-Flat computer support frame, 6-Baltimore groove, U in -input voltage, T-tapped transformer, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12-switch element, D1, D2, D3, D4, D5, D6, D7, D8-diode, L1, L2, L3-inductance, N1-former limit winding centre tap the first half winding, N2-former limit winding centre tap the latter half winding, N3, N4-first vice-side winding, N5, N6-second vice-side winding, N7, N8 the-the 3rd vice-side winding.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.
As shown in Figure 1, high reliability desk lamp of the present invention comprises Desk lamp feet 1, Switching Power Supply 2, lamp bracket 3 and lampshade 4, described Switching Power Supply 2 comprises the three-phase resonate converter with interphase reactor transformer, described Desk lamp feet 1 is provided with Flat computer support frame 5, in the present embodiment, Flat computer support frame 5 is fixed on described Desk lamp feet 1 in 120 ° of elevations angle, Flat computer support frame 5 is X-type support, the two ends that Flat computer support frame 5 contacts with Desk lamp feet 1 are respectively equipped with Baltimore groove 6, when panel computer is placed in Flat computer support frame 5 by user, Baltimore groove 6 pairs of panel computers play fixation.
As shown in Figure 2, three-phase resonate converter comprise input voltage Uin, former limit and secondary all there is tapped transformer T, switch element S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, diode D1, D2, D3, D4, D5, D6, D7, D8, inductance L 1, L2, L3 and controller, described each switching tube has antiparallel parasitic diode and parasitic capacitance, described transformer T has 3 vice-side winding, first vice-side winding is N3, N4, second vice-side winding is N5, N6, and the 3rd vice-side winding is N7, N8;
The different name end of former limit winding centre tap the first half winding connects the anode of diode D1, the Same Name of Ends of former limit winding centre tap the latter half winding connects the anode of diode D2, the Same Name of Ends of former limit winding centre tap the first half winding N1 is connected with the anode of input voltage Uin with the tie point of the different name end of former limit winding centre tap the latter half winding N2, and the negative terminal of input voltage Uin connects the negative electrode of diode D1, D2;
First structure exporting phase is: the collector electrode of anode connecting valve element S1, S3 of input voltage Uin, the emitter of negative terminal connecting valve element S2, S4 of input voltage Uin; The emitter of switch element S1 connects the anode of diode D3, the negative electrode of diode D3 connects the Same Name of Ends of first vice-side winding centre tap the first half winding, the different name end of first vice-side winding centre tap the first half winding N3 is connected with the Same Name of Ends of first vice-side winding centre tap the latter half winding N4, and its tie point is connected with one end of inductance L 1, the different name end of first vice-side winding centre tap the latter half winding is connected with the anode of diode D4, the collector electrode of the negative electrode connecting valve element S2 of diode D4; The emitter of switch element S3 is connected with the collector electrode of switch element S4, and the other end of its tie point and inductance L 1 and load are connected;
Second structure exporting phase is: the collector electrode of anode connecting valve element S5, S7 of input voltage Uin, the emitter of negative terminal connecting valve element S6, S8 of input voltage Uin; The emitter of switch element S5 connects the anode of diode D5, the negative electrode of diode D5 connects the Same Name of Ends of second vice-side winding centre tap the first half winding, the different name end of second vice-side winding centre tap the first half winding N5 is connected with the Same Name of Ends of second vice-side winding centre tap the latter half winding N6, and its tie point is connected with one end of inductance L 2, the different name end of second vice-side winding centre tap the latter half winding is connected with the anode of diode D6, the collector electrode of the negative electrode connecting valve element S6 of diode D6; The emitter of switch element S7 is connected with the collector electrode of switch element S8, and the other end of its tie point and inductance L 2 and load are connected;
3rd structure exporting phase is: the collector electrode of anode connecting valve element S9, S11 of input voltage Uin, the emitter of negative terminal connecting valve element S10, S12 of input voltage Uin; The emitter of switch element S9 connects the anode of diode D7, the negative electrode of diode D7 connects the Same Name of Ends of the 3rd vice-side winding centre tap the first half winding, the different name end of the 3rd vice-side winding centre tap the first half winding N7 is connected with the Same Name of Ends of the 3rd vice-side winding centre tap the latter half winding N8, and its tie point is connected with one end of inductance L 3, the different name end of the 3rd vice-side winding centre tap the latter half winding is connected with the anode of diode D8, the collector electrode of the negative electrode connecting valve element S10 of diode D8; The emitter of switch element S11 is connected with the collector electrode of switch element S12, and the other end of its tie point and inductance L 3 and load are connected;
Export for first: the first each switch element S1 ~ S4 exporting phase carries out alternate conduction and shutoff by controller according to the pulse sequence figure of Fig. 3; From circuit structure and above-mentioned pulse sequence figure, at S1, S2 blocking interval, energy in the winding of former limit feeds back to input power by diode D1, D2, and one of them conducting of controller control S3 or S4, resonance circuit is formed by the parasitic capacitance of inductance L and switching tube S1, S2, when the terminal voltage of S1, S2 is 0, conducting S1 or S2, realizes no-voltage open-minded; At S3, S4 blocking interval, one of them conducting of controller control S1 or S2, the resonance circuit formed by the parasitic capacitance of inductance L and switching tube S3, S4, conducting S3 or S4 when the terminal voltage of S3, S4 is 0, thus it is open-minded to realize no-voltage.Other two driving pulses exporting phase are according to corresponding relation advanced or delayed 120 ° respectively, and control mode and first exports similar, belongs to basic phase-shift control mode, repeats no more.
Switch element S can replace with MOSFET, and input power is chargeable storage, fuel cell or photovoltaic cell etc.Load can be three-phase alternating current load or further three phase rectifier is for DC load, and the form of rectification is all prior aries, repeats no more.
Above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit, although with reference to above-described embodiment to invention has been detailed description, the those of ordinary skill in described field is to be understood that: still can modify to the specific embodiment of the present invention or replace on an equal basis, and not departing from any amendment of spirit and scope of the invention or equivalent replacement, it all should be encompassed in the middle of right of the present invention.

Claims (9)

1. a high reliability Two purpose desk lamp, comprises Desk lamp feet, Switching Power Supply, lamp bracket and lampshade, it is characterized in that, described Switching Power Supply comprises three-phase inverter.
2. desk lamp as claimed in claim 1, it is characterized in that, described three-phase inverter comprises input voltage Uin, former limit and secondary all have tapped transformer T, switch element S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, diode D1, D2, D3, D4, D5, D6, D7, D8, inductance L 1, L2, L3 and controller, described each switching tube has antiparallel parasitic diode and parasitic capacitance, described transformer T has 3 vice-side winding, first vice-side winding is N3, N4, second vice-side winding is N5, N6, 3rd vice-side winding is N7, N8,
The different name end of former limit winding centre tap the first half winding connects the anode of diode D1, the Same Name of Ends of former limit winding centre tap the latter half winding connects the anode of diode D2, the Same Name of Ends of former limit winding centre tap the first half winding N1 is connected with the anode of input voltage Uin with the tie point of the different name end of former limit winding centre tap the latter half winding N2, and the negative terminal of input voltage Uin connects the negative electrode of diode D1, D2;
First structure exporting phase is: the collector electrode of anode connecting valve element S1, S3 of input voltage Uin, the emitter of negative terminal connecting valve element S2, S4 of input voltage Uin; The emitter of switch element S1 connects the anode of diode D3, the negative electrode of diode D3 connects the Same Name of Ends of first vice-side winding centre tap the first half winding, the different name end of first vice-side winding centre tap the first half winding N3 is connected with the Same Name of Ends of first vice-side winding centre tap the latter half winding N4, and its tie point is connected with one end of inductance L 1, the different name end of first vice-side winding centre tap the latter half winding is connected with the anode of diode D4, the collector electrode of the negative electrode connecting valve element S2 of diode D4; The emitter of switch element S3 is connected with the collector electrode of switch element S4, and the other end of its tie point and inductance L 1 and load are connected;
Second structure exporting phase is: the collector electrode of anode connecting valve element S5, S7 of input voltage Uin, the emitter of negative terminal connecting valve element S6, S8 of input voltage Uin; The emitter of switch element S5 connects the anode of diode D5, the negative electrode of diode D5 connects the Same Name of Ends of second vice-side winding centre tap the first half winding, the different name end of second vice-side winding centre tap the first half winding N5 is connected with the Same Name of Ends of second vice-side winding centre tap the latter half winding N6, and its tie point is connected with one end of inductance L 2, the different name end of second vice-side winding centre tap the latter half winding is connected with the anode of diode D6, the collector electrode of the negative electrode connecting valve element S6 of diode D6; The emitter of switch element S7 is connected with the collector electrode of switch element S8, and the other end of its tie point and inductance L 2 and load are connected;
3rd structure exporting phase is: the collector electrode of anode connecting valve element S9, S11 of input voltage Uin, the emitter of negative terminal connecting valve element S10, S12 of input voltage Uin; The emitter of switch element S9 connects the anode of diode D7, the negative electrode of diode D7 connects the Same Name of Ends of the 3rd vice-side winding centre tap the first half winding, the different name end of the 3rd vice-side winding centre tap the first half winding N7 is connected with the Same Name of Ends of the 3rd vice-side winding centre tap the latter half winding N8, and its tie point is connected with one end of inductance L 3, the different name end of the 3rd vice-side winding centre tap the latter half winding is connected with the anode of diode D8, the collector electrode of the negative electrode connecting valve element S10 of diode D8; The emitter of switch element S11 is connected with the collector electrode of switch element S12, and the other end of its tie point and inductance L 3 and load are connected.
3. desk lamp as claimed in claim 2, it is characterized in that, described three phase controllers control switch S1 and S2 alternate conduction, S3 and S4 alternate conduction, S5 and S6 alternate conduction, S7 and S8 alternate conduction, S9 and S10 alternate conduction, S11 and S12 alternate conduction, each output is mutually by resonance circuit that the parasitic capacitance of respective inductance L 1, L2, L3 and each switch element is formed, the each switch element of conducting when the terminal voltage of each switch element is 0, thus it is open-minded to realize no-voltage.
4. desk lamp as claimed in claim 2, it is characterized in that, described switching tube is IGBT or MOSFET.
5. desk lamp as claimed in claim 2, it is characterized in that, described input voltage is storage battery, fuel cell or photovoltaic cell.
6. desk lamp as claimed in claim 2, it is characterized in that, described diode all adopts fast recovery diode or Schottky diode.
7. desk lamp as claimed in claim 2, it is characterized in that, described load is three-phase alternating current load or rectified three-phase circuit.
8. desk lamp as claimed in claim 1, it is characterized in that, described Desk lamp feet is provided with Flat computer support frame.
9. desk lamp as claimed in claim 8, it is characterized in that, the two ends that described Flat computer support frame contacts with Desk lamp feet are respectively equipped with Baltimore groove.
CN201510284668.8A 2014-12-12 2015-05-27 High-reliability dual-purpose desk lamp Pending CN104822212A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510284668.8A CN104822212A (en) 2014-12-12 2015-05-27 High-reliability dual-purpose desk lamp

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN2014108579648 2014-12-12
CN201410857964 2014-12-12
CN201510284668.8A CN104822212A (en) 2014-12-12 2015-05-27 High-reliability dual-purpose desk lamp

Publications (1)

Publication Number Publication Date
CN104822212A true CN104822212A (en) 2015-08-05

Family

ID=53732343

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510284668.8A Pending CN104822212A (en) 2014-12-12 2015-05-27 High-reliability dual-purpose desk lamp

Country Status (1)

Country Link
CN (1) CN104822212A (en)

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4513224A (en) * 1982-09-22 1985-04-23 Pacific Power Control, Inc. Fluorescent-lighting-system voltage controller
CN1581664A (en) * 2003-08-08 2005-02-16 立锜科技股份有限公司 Driving circuit and method for three-phase current thansformer
CN101232767A (en) * 2007-08-06 2008-07-30 葛世潮 Wide range continuous light regulating energy-saving desk lamp without stroboflash
CN201204723Y (en) * 2008-05-31 2009-03-04 余成军 Three-phase lamplight intelligent power-saving device
CN101944745A (en) * 2010-09-06 2011-01-12 北京理工大学 Energy storage system and control method thereof
CN102088803A (en) * 2009-12-08 2011-06-08 朱建清 Intelligent LED road lighting system for high-voltage DC power supply
CN202118573U (en) * 2011-05-13 2012-01-18 上虞力得电器有限公司 Panel lamp
CN202257419U (en) * 2011-08-26 2012-05-30 郑鑫鹤 Notebook computer radiating rack
CN202406349U (en) * 2011-12-20 2012-08-29 江苏宏微科技有限公司 LED lighting intelligent control system
CN103401465A (en) * 2013-08-13 2013-11-20 青岛理工大学 Wide range voltage adjustable buck-boost single-stage inverter circuit device
CN203734898U (en) * 2014-03-11 2014-07-23 龚秋声 Special-purpose single-phase and three-phase converters for intermediate frequency energy saving lamp
CN104539184A (en) * 2014-12-12 2015-04-22 贵州永红航空机械有限责任公司 Efficient transport refrigeration machine

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4513224A (en) * 1982-09-22 1985-04-23 Pacific Power Control, Inc. Fluorescent-lighting-system voltage controller
CN1581664A (en) * 2003-08-08 2005-02-16 立锜科技股份有限公司 Driving circuit and method for three-phase current thansformer
CN101232767A (en) * 2007-08-06 2008-07-30 葛世潮 Wide range continuous light regulating energy-saving desk lamp without stroboflash
CN201204723Y (en) * 2008-05-31 2009-03-04 余成军 Three-phase lamplight intelligent power-saving device
CN102088803A (en) * 2009-12-08 2011-06-08 朱建清 Intelligent LED road lighting system for high-voltage DC power supply
CN101944745A (en) * 2010-09-06 2011-01-12 北京理工大学 Energy storage system and control method thereof
CN202118573U (en) * 2011-05-13 2012-01-18 上虞力得电器有限公司 Panel lamp
CN202257419U (en) * 2011-08-26 2012-05-30 郑鑫鹤 Notebook computer radiating rack
CN202406349U (en) * 2011-12-20 2012-08-29 江苏宏微科技有限公司 LED lighting intelligent control system
CN103401465A (en) * 2013-08-13 2013-11-20 青岛理工大学 Wide range voltage adjustable buck-boost single-stage inverter circuit device
CN203734898U (en) * 2014-03-11 2014-07-23 龚秋声 Special-purpose single-phase and three-phase converters for intermediate frequency energy saving lamp
CN104539184A (en) * 2014-12-12 2015-04-22 贵州永红航空机械有限责任公司 Efficient transport refrigeration machine

Similar Documents

Publication Publication Date Title
Yuan et al. Analysis and design of a high step-up current-fed multiresonant DC–DC converter with low circulating energy and zero-current switching for all active switches
US20130038130A1 (en) Dc-to-ac converter system and dc-to-ac converter circuit
CN102447396A (en) Transformer with high set-up ratio, solar inverter and solar battery system
CN108023471B (en) Soft power-on system, equipment and soft power-on method thereof
CN100492845C (en) Tri-switch single-stage voltage boosting/reducing inverter
CN104822211A (en) High-reliability LED illuminating device
CN102368616B (en) Power factor compensation control circuit of self-turn-off device
CN202475260U (en) High step-up ratio converter, solar energy inverter and solar energy cell system
CN104822212A (en) High-reliability dual-purpose desk lamp
Leu et al. LLC converter with Taiwan Tech center-tapped rectifier (LLC-TCT) for solar power conversion applications
CN103973129A (en) Soft-switching power electronic transformer
CN104848075B (en) A kind of high-efficiency dual-purpose desk lamp
CN104837279A (en) High-reliability storage desk lamp
Kato et al. Comparative analysis of full bridge and half bridge current resonant DC-DC converter
CN104917408A (en) Multifunctional desk lamp
CN202513840U (en) Non-isolated symmetrical auto-coupled 18-pulse rectifier power system
CN104868752A (en) High-efficiency multifunctional lighting device
CN202444421U (en) Boost transformation circuit and solar energy inverter
Anandababu et al. A novel neutral point clamped transformerless inverter for grid-connected photovoltaic system
CN203827196U (en) Soft switch power electronic transformer
CN104822210A (en) High-reliability desk lamp
CN205596021U (en) MOS manages switching transformer control circuit
Lin Zero-voltage DC/DC converter with asymmetric pulse-width modulation for DC micro-grid system
CN104848074A (en) Height-adjustable lighting device
CN104832863A (en) Storage table lamp

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
EXSB Decision made by sipo to initiate substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20150805

RJ01 Rejection of invention patent application after publication