CN101348219B - Elevator electromagnetic brake excitation circuit - Google Patents
Elevator electromagnetic brake excitation circuit Download PDFInfo
- Publication number
- CN101348219B CN101348219B CN2008101204000A CN200810120400A CN101348219B CN 101348219 B CN101348219 B CN 101348219B CN 2008101204000 A CN2008101204000 A CN 2008101204000A CN 200810120400 A CN200810120400 A CN 200810120400A CN 101348219 B CN101348219 B CN 101348219B
- Authority
- CN
- China
- Prior art keywords
- circuit
- resistance
- links
- electric capacity
- mouth
- 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
Images
Abstract
The invention discloses an exciting circuit for an electromagnetic brake of an elevator, comprising a control circuit for controlling the electromagnetic brake of the elevator to attract and open, a sampling feedback circuit, a zero-crossing trigger circuit, a timing circuit, a reference voltage circuit and an auxiliary power circuit supplying power. The control end of the control circuit is connected with the output end of the zero-crossing trigger circuit; the output end of the control circuit is connected with the electromagnetic brake of the elevator and one input end of the sampling feedback circuit; the other input end of the sampling feedback circuit is connected with the reference voltage circuit; the output end of the sampling feedback circuit is connected with the signal end of the zero-crossing trigger circuit; and the control end of the zero-crossing trigger circuit is connected with the timing circuit. The exciting circuit has the advantages that the structure is simple, a principle that a zero-crossing trigger is started by high voltage is utilized, the working voltage of the electromagnetic brake is automatically reduced, the effects of reducing energy consumption and cooling the electromagnetic brake are provided, physical line connecting materials can be saved, a negative feedback model is adopted to reduce interference caused by power network voltage fluctuation, and the safety, reliability and stability of elevator operation can be improved.
Description
Technical field
The present invention relates to a kind of elevator electromagnetic brake excitation circuit.
Background technology
Along with the continuous development of urban construction, skyscraper is on the increase, and elevator has a wide range of applications in national economy and life.Elevator is inseparable with daily life as the vehicle of vertical operation in the skyscraper.Magnet stopper is the significant element that elevator stops, braking, and is in the electromechanical device that prevents under the power failure state that elevator from moving again when lift car is in static and motor, and the maintenance of magnet stopper, debugging be improper to cause that the accident that elevator hurts sb.'s feelings is of common occurrence.Nowadays, in economic development, the severe power shortage scope is increasing, reduces the elevator power consumption, also is to carry out an aspect that economizes on resources.
Summary of the invention
The purpose of this invention is to provide a kind of elevator electromagnetic brake excitation circuit,, and reduce power consumption with the safe and reliable stability of raising elevator operation.
Elevator electromagnetic brake excitation circuit of the present invention comprises: be used to control elevator electromagnetic brake adhesive and the control circuit of opening, be used to gather the sampling feedback circuit of line voltage synchronizing signal, the over-zero trigger circuit, timing circuit, reference voltage circuit and auxiliary power circuit, the control end of control circuit links to each other with the mouth of over-zero trigger circuit, the mouth of control circuit links to each other with an input end of elevator electromagnetic brake and sampling feedback circuit, another input end of sampling feedback circuit links to each other with reference voltage circuit, the mouth of sampling feedback circuit links to each other with over-zero trigger circuit signal end, the control end of over-zero trigger circuit links to each other with timing circuit, and auxiliary power circuit is the sampling feedback circuit, timing circuit, the over-zero trigger circuit, reference voltage circuit provides power supply.
Among the present invention, said control circuit comprises: pizo-resistance, first bridge heap, first switching valve and first resistance, an input end of first bridge heap and an end of pizo-resistance connect source of AC altogether, another input end of first bridge heap links to each other with the collecting electrode of first switching valve, first resistance in parallel between the grid of first switching valve and the emitter, the emitter common ground of the other end of pizo-resistance and first switching valve.
Among the present invention, said sampling feedback circuit comprises: two op amps, first comparator and corresponding Resistor-Capacitor Unit, end after the 3rd resistance and the first electric capacity parallel connection links to each other with an end of second resistance, the other end ground connection of this circuit parallel, input end of first op amp and second, the contact of the 3rd resistance links to each other, another input end of first op amp links to each other with the contact of the 4th resistance and the 5th resistance, the other end ground connection of the 4th resistance, the 5th resistance other end links to each other with an end of first operational amplifier output terminal and the 6th resistance, an input end of the other end of the 6th resistance and second op amp and an end of the 7th resistance link to each other, the 7th resistance other end links to each other with an end of second operational amplifier output terminal and the tenth resistance, end after the 9th resistance and the second electric capacity parallel connection links to each other with an end of the 8th resistance, the other end ground connection of this circuit parallel, another input end and the 8th of second op amp, the contact of the 9th resistance links to each other, an input end of the other end of the tenth resistance and first comparator and an end of the 3rd electric capacity link to each other, the other end ground connection of the 3rd electric capacity, another input end of first comparator links to each other with an end of the 6th electric capacity, the other end ground connection of the 6th electric capacity, the mouth of first comparator links to each other with the contact of the 12 resistance and the 5th electric capacity, the contact of the 12 resistance and the 5th electric capacity is the mouth of sampling feedback circuit, and the other end of the other end of second resistance and the 8th resistance is the coupling end with control circuit.
Among the present invention, said over-zero trigger circuit comprises: diode, second comparator, binary pair, two aerotrons and corresponding Resistor-Capacitor Unit, end after the 14 resistance and the 7th electric capacity parallel connection links to each other with an end of the 13 resistance, the other end ground connection of this circuit parallel, an input end and the 13 of second comparator, the contact of the 14 resistance links to each other, another input end of second comparator links to each other with an end and the diode cathode of the 15 resistance, one end of the mouth of second comparator and the 8th electric capacity, one end of the 16 resistance and binary pair clock control end join, the negative pole common ground of the 8th electric capacity other end and diode, the mouth of binary pair and an end of the 17 resistance join, the other end of the 17 resistance and first, one end of the base stage of second aerotron and the 9th electric capacity links to each other, the collecting electrode common ground of the 9th electric capacity other end and second aerotron, first transistor collector links to each other with power supply, first, the emitter of second aerotron and an end of the 18 resistance connect altogether, and the other end of the 18 resistance and the other end of the 13 resistance are the coupling end with control circuit.
The principle of work of magnet stopper divider chain of the present invention: auxiliary power circuit provides power supply for sampling feedback circuit, timing circuit, over-zero trigger circuit, reference voltage circuit; The standard value voltage that the sampling feedback circuit is gathered line voltage synchronizing signal and reference voltage circuit generation compares, output signal is relatively given the over-zero trigger circuit, the over-zero trigger circuit is according to being defeated by control circuit from the control signal of sampling feedback circuit and the timing signal for generating energizing signal of timing circuit, utilize the principle of high voltage startup zero cross fired, make control circuit produce pulsating voltage, go to control the elevator electromagnetic brake adhesive and open by pulsating voltage, realize reducing the voltage on the magnet stopper, play the effect that reduces power consumption, cooling.
Circuit structure of the present invention is simple, utilize the principle of high voltage startup zero cross fired, automatically reduce the magnet stopper operating voltage, have the power consumption of reduction and magnet stopper cooling effect, can save the material of physical connection, in addition, also possess the negative feedback mode of employing and reduce the interference that voltage ripple of power network brings, can improve the safe and reliable stability of elevator operation.
Description of drawings
Fig. 1 is that elevator electromagnetic brake excitation circuit of the present invention constitutes block diagram;
Fig. 2 is the control circuit example in the elevator electromagnetic brake excitation circuit;
Fig. 3 is the sampling feedback circuit example in the elevator electromagnetic brake excitation circuit;
Fig. 4 is the over-zero trigger practical circuit in the elevator electromagnetic brake excitation circuit.
Fig. 5 is the reference voltage circuit example in the elevator electromagnetic brake excitation circuit;
Fig. 6 is the timing circuit example in the elevator electromagnetic brake excitation circuit;
Fig. 7 is the auxiliary power circuit example in the elevator electromagnetic brake excitation circuit.
Specific implementation method
Further specify the present invention below in conjunction with accompanying drawing.
With reference to Fig. 1, elevator electromagnetic brake excitation circuit of the present invention comprises: be used to control elevator electromagnetic brake adhesive and the control circuit of opening 1, be used to gather the sampling feedback circuit 2 of line voltage synchronizing signal, over-zero trigger circuit 3, timing circuit 4, reference voltage circuit 5 and auxiliary power circuit 6, the control end of control circuit 1 links to each other with the mouth of over-zero trigger circuit 3, the mouth of control circuit 1 links to each other with an input end of elevator electromagnetic brake and sampling feedback circuit 2, another input end of sampling feedback circuit 2 links to each other with reference voltage circuit 5, the mouth of sampling feedback circuit 2 links to each other with over-zero trigger circuit 3 signal ends, the control end of over-zero trigger circuit 3 links to each other with timing circuit 4, and auxiliary power circuit 6 is the sampling feedback circuit, timing circuit, the over-zero trigger circuit, reference voltage circuit provides power supply.
What Fig. 2 provided is a kind of control circuit, in the illustrated example, control circuit comprises: pizo-resistance V1, first bridge heap D1, the first switching valve Q1 and first resistance R 1, the input end of first bridge heap D1 and the end of pizo-resistance V1 connect source of AC altogether, another input end of first bridge heap links to each other with the collecting electrode of the first switching valve Q1, first resistance R 1 in parallel between the grid of the first switching valve Q1 and the emitter, the emitter common ground of the other end of pizo-resistance V1 and the first switching valve Q1;
Fig. 3 is the sampling feedback circuit, in the illustrated example, the sampling feedback circuit comprises: two op amp U1, U2, the first comparator U3 and corresponding Resistor-Capacitor Unit, end after the 3rd resistance R 3 and 1 parallel connection of first capacitor C links to each other with an end of second resistance R 2, the other end ground connection of this circuit parallel, input end of the first op amp U1 and second, the 3rd resistance R 2, the contact of R3 links to each other, another input end of the first op amp U1 links to each other with the contact of the 4th resistance R 4 and the 5th resistance R 5, the other end ground connection of the 4th resistance R 4, the 5th resistance R 5 other ends link to each other with an end of the first op amp U1 mouth and the 6th resistance R 6, the input end of the other end of the 6th resistance R 6 and the second op amp U2 and an end of the 7th resistance R 7 link to each other, the 7th resistance R 7 other ends link to each other with an end of the second op amp U2 mouth and the tenth resistance R 10, end after the 9th resistance R 9 and 2 parallel connections of second capacitor C links to each other with an end of the 8th resistance R 8, the other end ground connection of this circuit parallel, another input end and the 8th of the second op amp U2, the 9th resistance R 8, the contact of R9 links to each other, the input end of the other end of the tenth resistance R 10 and the first comparator U3 and an end of the 3rd capacitor C 3 link to each other, the other end ground connection of the 3rd capacitor C 3, another input end of the first comparator U3 links to each other with an end of the 6th capacitor C 6, the other end ground connection of the 6th capacitor C 6, the mouth of the first comparator U3 links to each other with the contact of the 12 resistance R 12 and the 5th capacitor C 5, the contact of the 12 resistance R 12 and the 5th capacitor C 5 is the mouth of sampling feedback circuit 2, and the contact of the 12 resistance R 12 and the 5th capacitor C 5 is the mouth of sampling feedback circuit.The incoming signal end Control of binary pair U5 in this mouth and the over-zero trigger circuit links to each other.The collecting electrode of the first switching valve Q1 in the other end of second resistance R 2 and the control circuit links to each other, and the other end of the 8th resistance links to each other with first bridge heap D1 output cathode in the control circuit.
Fig. 4 is the over-zero trigger circuit, in the illustrated example, over-zero trigger circuit 3 comprises: diode D2, the second comparator U4, binary pair U5, two aerotron T1, T2 and corresponding Resistor-Capacitor Unit, end after the 14 resistance R 14 and 7 parallel connections of the 7th capacitor C links to each other with an end of the 13 resistance R 13, the other end ground connection of this circuit parallel, the input end and the 13 of the second comparator U4, the 14 resistance R 13, the contact of R14 links to each other, another input end of the second comparator U4 links to each other with an end of the 15 resistance R 15 and diode D2 positive pole, one end of the mouth of the second comparator U4 and the 8th capacitor C 8, one end of the 16 resistance R 16 and binary pair U5 clock control end join, the negative pole common ground of the 8th capacitor C 8 other ends and diode D2, one end of the mouth of binary pair U5 and the 17 resistance R 17 joins, the other end of the 17 resistance R 17 and first, the second aerotron T1, one end of the base stage of T2 and the 9th capacitor C 9 links to each other, the collecting electrode common ground of the 9th capacitor C 9 other ends and the second aerotron T2, the first aerotron T1 collecting electrode links to each other with power Vcc, first, the second aerotron T1, one end of the emitter of T2 and the 18 resistance R 18 connects altogether, the other end GD of the 18 resistance R 18 is a signal end, this signal end links to each other with the first switching valve grid G D in the control circuit, and the other end of the 15 resistance links to each other with first bridge heap D1 output cathode in the control circuit.
Reference voltage circuit as shown in Figure 5, form by reference voltage chip U6, potential device W1 and related resistors, its mouth is the contact of the 20 resistance R 20 and the 21 resistance R 21, and this contact links to each other with the input end Vref of the sampling feedback circuit first comparator U3.
Timing circuit is made up of with corresponding capacitance resistance ware timing chip U7, potential device W2 as shown in Figure 6.The Q pin of timing chip U7 is a mouth.This mouth links to each other with the control end Timer of binary pair U5 in the over-zero trigger circuit.
Fig. 7 is an auxiliary power circuit, and in the illustrated example, auxiliary power circuit comprises: voltage transformer T1, second bridge heap D3, second switch pipe Q2, zener diode D4, light-emitting diode D5 and corresponding Resistor-Capacitor Unit; The input end of voltage transformer is connected on the source of AC AC, the mouth of voltage transformer links to each other with the ac input end of second bridge heap D3, the negative output terminal ground connection of second bridge heap D3, the positive output end of second bridge heap D3 links to each other with an end of the 29 resistance R 29 and the emitter of second switch pipe Q2, the other end sending and receiving optical diode D5 positive pole of the 29 resistance R 29, light-emitting diode D5 negative earth, end after zener diode D4 and the series connection of the 30 resistance R 30 links to each other with the base stage of second switch pipe Q2, the other end ground connection of circuit series, the collecting electrode power connection Vcc of second switch pipe Q2.
During the electromagnetic brake excitation circuit operation: electrical network is through the voltage transformer transformation of voltage auxiliary power circuit, and second bridge is piled rectification, and output dc voltage behind the capacitor filtering is sampling feedback circuit, timing circuit, over-zero trigger circuit, reference voltage circuit power supply; The difference channel that two op amps in the sampling feedback circuit constitute is gathered a signal synchronous with line voltage from the mouth of control circuit, the standard value voltage that this signal and reference voltage circuit produce is delivered in the over-zero trigger circuit by the relatively back output control signal of comparator, the circuit control that the clock control signal of over-zero trigger circuit is made of second comparator (after gathering the grid ac voltage zero crossing positive pulse output being arranged), the Enable Pin of over-zero trigger circuit (being control end) is by the signal control of timing circuit output, only under situation about enabling, the over-zero trigger circuit just has effective trigger signals output according to the trigger action of clock signal, and the size of energizing signal is by the outputting standard magnitude of voltage decision of reference voltage circuit; Go conducting and the shutoff of the switching valve Q1 in the trigger control circuit by the output of over-zero trigger circuit, if over-zero trigger circuit output high level can make the switching valve conducting, utilize switching valve to remove to control the bridge heap, make the control circuit output voltage average value change (frequency high output voltage height) with the turn-on frequency of switching valve, when voltage is exported, on the corresponding magnet stopper voltage is just arranged, the braking of elevator electromagnetic brake is with regard to adhesive, otherwise magnet stopper is opened.By regulating the potential device size of timing circuit, scalable output timing wave time length.The normal voltage of the output by regulating reference voltage circuit can change the switching valve turn-on frequency in the control circuit, the size of coming the modulation control circuit output voltage in view of the above.Realization reduces the magnet stopper operating voltage, plays the effect of energy-conservation cooling.
Claims (1)
1. elevator electromagnetic brake excitation circuit, it is characterized in that comprising: be used to control elevator electromagnetic brake adhesive and the control circuit of opening (1), be used to gather the sampling feedback circuit (2) of line voltage synchronizing signal, over-zero trigger circuit (3), timing circuit (4), reference voltage circuit (5) and auxiliary power circuit (6), the control end of control circuit (1) links to each other with the mouth of over-zero trigger circuit (3), the mouth of control circuit (1) links to each other with an input end of elevator electromagnetic brake and sampling feedback circuit (2), another input end of sampling feedback circuit (2) links to each other with reference voltage circuit (5), the mouth of sampling feedback circuit (2) links to each other with over-zero trigger circuit (3) signal end, the control end of over-zero trigger circuit (3) links to each other with timing circuit (4), and auxiliary power circuit (6) is the sampling feedback circuit, timing circuit, the over-zero trigger circuit, reference voltage circuit provides power supply;
Said control circuit (1) comprising: pizo-resistance (V1), first bridge heap (D1), first switching valve (Q1) and first resistance (R1), an input end of first bridge heap (D1) and an end of pizo-resistance (V1) connect source of AC altogether, another input end of first bridge heap links to each other with the collecting electrode of first switching valve (Q1), first resistance in parallel (R1) between the grid of first switching valve (Q1) and the emitter, the emitter common ground of the other end of pizo-resistance (V1) and first switching valve (Q1);
Said sampling feedback circuit (2) comprising: two op amp (U1, U2), first comparator (U3) and corresponding Resistor-Capacitor Unit, end after the 3rd resistance (R3) and first electric capacity (C1) parallel connection links to each other with an end of second resistance (R2), the other end ground connection of this circuit parallel, input end of first op amp (U1) and second, the 3rd resistance (R2, R3) contact links to each other, another input end of first op amp (U1) links to each other with the contact of the 4th resistance (R4) and the 5th resistance (R5), the other end ground connection of the 4th resistance (R4), the 5th resistance (R5) other end links to each other with an end of first op amp (U1) mouth and the 6th resistance (R6), an input end of the other end of the 6th resistance (R6) and second op amp (U2) and an end of the 7th resistance (R7) link to each other, the 7th resistance (R7) other end links to each other with an end of second op amp (U2) mouth and the tenth resistance (R10), end after the 9th resistance (R9) and second electric capacity (C2) parallel connection links to each other with an end of the 8th resistance (R8), the other end ground connection of this circuit parallel, another input end and the 8th of second op amp (U2), the 9th resistance (R8, R9) contact links to each other, an input end of the other end of the tenth resistance (R10) and first comparator (U3) and an end of the 3rd electric capacity (C3) link to each other, the other end ground connection of the 3rd electric capacity (C3), another input end of first comparator (U3) links to each other with an end of the 6th electric capacity (C6), the other end ground connection of the 6th electric capacity (C6), the mouth of first comparator (U3) links to each other with the contact of the 12 resistance (R12) and the 5th electric capacity (C5), the contact of the 12 resistance (R12) and the 5th electric capacity (C5) is the mouth of sampling feedback circuit (2), and the other end of the other end of second resistance (R2) and the 8th resistance (R8) is the coupling end with control circuit;
Said over-zero trigger circuit (3) comprising: diode (D2), second comparator (U4), binary pair (U5), two aerotron (T1, T2) and corresponding Resistor-Capacitor Unit, end after the 14 resistance (R14) and the 7th electric capacity (C7) parallel connection links to each other with an end of the 13 resistance (R13), the other end ground connection of this circuit parallel, an input end and the 13 of second comparator (U4), the 14 resistance (R13, R14) contact links to each other, another input end of second comparator (U4) links to each other with an end of the 15 resistance (R15) and diode (D2) positive pole, one end of the mouth of second comparator (U4) and the 8th electric capacity (C8), one end of the 16 resistance (R16) and binary pair (U5) clock control end join, the negative pole common ground of the 8th electric capacity (C8) other end and diode (D2), the mouth of binary pair (U5) and an end of the 17 resistance (R17) join, the other end and first of the 17 resistance (R17), second aerotron (the T1, one end of base stage T2) and the 9th electric capacity (C9) links to each other, the collecting electrode common ground of the 9th electric capacity (C9) other end and second aerotron (T2), first aerotron (T1) collecting electrode links to each other with power supply (Vcc), first, second aerotron (the T1, one end of emitter T2) and the 18 resistance (R18) connects altogether, and the other end of the 18 resistance (R18) and the other end of the 13 resistance (R13) are the coupling end with control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101204000A CN101348219B (en) | 2008-08-26 | 2008-08-26 | Elevator electromagnetic brake excitation circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101204000A CN101348219B (en) | 2008-08-26 | 2008-08-26 | Elevator electromagnetic brake excitation circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101348219A CN101348219A (en) | 2009-01-21 |
| CN101348219B true CN101348219B (en) | 2011-02-16 |
Family
ID=40267222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101204000A Active CN101348219B (en) | 2008-08-26 | 2008-08-26 | Elevator electromagnetic brake excitation circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101348219B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102664579A (en) * | 2012-04-17 | 2012-09-12 | 燕山大学 | Control device of electromagnetic brake |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104682801A (en) * | 2013-11-28 | 2015-06-03 | 株式会社开道 | Electromagnetic braking control device |
| CN104192750B (en) * | 2014-08-27 | 2016-07-06 | 安徽广德昌立制动器有限公司 | Universal elevator brake voltage regulator control circuit |
| CN106160513B (en) * | 2015-04-27 | 2019-03-05 | 蒂森克虏伯电梯（上海）有限公司 | Segmented PWM band-type brake power control circuit and its control method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87203063U (en) * | 1987-03-19 | 1987-12-26 | 吕少龙 | Ac voltage regulated power supply |
| CN2296033Y (en) * | 1997-03-03 | 1998-10-28 | 赵为政 | High performance capacity constant voltage power supply with parallel switches |
| CN2596666Y (en) * | 2002-12-30 | 2003-12-31 | 沈阳东宇工业技术研究院（有限公司） | Electronic braker for ac motor |
| CN201276400Y (en) * | 2008-08-26 | 2009-07-22 | 杭州浙大太阳电气有限公司 | Excitation circuit of elevator electromagnetic brake |
-
2008
- 2008-08-26 CN CN2008101204000A patent/CN101348219B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87203063U (en) * | 1987-03-19 | 1987-12-26 | 吕少龙 | Ac voltage regulated power supply |
| CN2296033Y (en) * | 1997-03-03 | 1998-10-28 | 赵为政 | High performance capacity constant voltage power supply with parallel switches |
| CN2596666Y (en) * | 2002-12-30 | 2003-12-31 | 沈阳东宇工业技术研究院（有限公司） | Electronic braker for ac motor |
| CN201276400Y (en) * | 2008-08-26 | 2009-07-22 | 杭州浙大太阳电气有限公司 | Excitation circuit of elevator electromagnetic brake |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102664579A (en) * | 2012-04-17 | 2012-09-12 | 燕山大学 | Control device of electromagnetic brake |
| CN102664579B (en) * | 2012-04-17 | 2014-10-15 | 燕山大学 | Control device of electromagnetic brake |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101348219A (en) | 2009-01-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101348219B (en) | Elevator electromagnetic brake excitation circuit | |
| CN102395233A (en) | Switching light modulation LED driving circuit and LED lamp set | |
| CN101646280A (en) | LED high-voltage energy-saving power supply | |
| CN100495889C (en) | On-line separate AC/DC power supply with PFC circuit | |
| CN204408675U (en) | Illumination control circuit and lighting apparatus | |
| CN201276400Y (en) | Excitation circuit of elevator electromagnetic brake | |
| CN102651602A (en) | Energy saving control method and device for energy storage batteries of asynchronous motor of beam-pumping unit | |
| CN101752143A (en) | Energy saver for AC contactor | |
| CN218733976U (en) | Frequency conversion controller system for oil field | |
| CN101394135B (en) | Control system and controller power source for electric appliance | |
| CN203159114U (en) | Driving power circuit for electromagnetic brake | |
| CN205844375U (en) | A kind of high voltage pulse generation device for Cable fault examination | |
| CN202435698U (en) | Electronic ballast of high voltage sodium lamp | |
| CN205160399U (en) | A power supply unit for elevator band -type brake coil | |
| CN201194438Y (en) | Fixed power limiter and lighting lamp | |
| CN100420131C (en) | DC-AC two-use electronic saving module of low-voltage electrical equipment | |
| CN101932148A (en) | Electromagnetic heating circuit | |
| CN2586276Y (en) | Low-voltage protector of electronic a.c 220V switching gear | |
| CN2421767Y (en) | Intelligent DC uninterruption power source | |
| CN209071223U (en) | A kind of Relay Link Circuit with control power consumption function | |
| CN102480284A (en) | N-channel metal oxide semiconductor (NMOS) transistor-based high-power electronic switch | |
| CN109217669A (en) | A kind of superconducting magnet circuit | |
| CN2495062Y (en) | Controller of electric machine valve for IC card intelligent gas meter | |
| CN108859816A (en) | Energy-saving control circuit with the electric car charger for repairing lead-acid battery function | |
| CN217956948U (en) | PFC pulse width modulation signal control drive circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SOLATRIC NEW ENERGY TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: TAIYANG ELECTRIC CO., LTD., ZHEJIANG UNIV., HANGZHOU Effective date: 20111116 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20111116 Address after: 310012, room 5, building 408, No. 309-311, Xihu District, Hangzhou, Wensanlu Road Patentee after: Solatric New Energy Technology Co., Ltd. Address before: 4, B406, building 310012, science building, East Software Park, No. 90, Zhejiang, Hangzhou, Wensanlu Road Patentee before: Taiyang Electric Co., Ltd., Zhejiang Univ., Hangzhou |