CN107967989A - The LC resonance circuit method of adjustment of inductor core device, inductor and inductor - Google Patents
The LC resonance circuit method of adjustment of inductor core device, inductor and inductor Download PDFInfo
- Publication number
- CN107967989A CN107967989A CN201610913344.0A CN201610913344A CN107967989A CN 107967989 A CN107967989 A CN 107967989A CN 201610913344 A CN201610913344 A CN 201610913344A CN 107967989 A CN107967989 A CN 107967989A
- Authority
- CN
- China
- Prior art keywords
- inductor
- sliding seat
- limit switch
- seat
- fixed seat
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F29/00—Variable transformers or inductances not covered by group H01F21/00
- H01F29/08—Variable transformers or inductances not covered by group H01F21/00 with core, coil, winding, or shield movable to offset variation of voltage or phase shift, e.g. induction regulators
- H01F29/10—Variable transformers or inductances not covered by group H01F21/00 with core, coil, winding, or shield movable to offset variation of voltage or phase shift, e.g. induction regulators having movable part of magnetic circuit
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P13/00—Arrangements for controlling transformers, reactors or choke coils, for the purpose of obtaining a desired output
- H02P13/10—Arrangements for controlling transformers, reactors or choke coils, for the purpose of obtaining a desired output by moving core, coil winding, or shield, e.g. by induction regulator
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Seats For Vehicles (AREA)
Abstract
The present invention relates to the LC resonance circuit method of adjustment of inductor core device, inductor and inductor.Inductor core device, including servomotor, fixed seat, sliding seat and pedestal；Servomotor is arranged in fixed seat, has the ball screw that connection can be realized with servomotor in fixed seat, the nut seat with ball screw immovable fitting is provided with sliding seat；Connected by lead between fixed seat and sliding seat, connected between sliding seat and pedestal by the lead, to meet that sliding seat moves back and forth between fixed seat and pedestal along lead；The lower end of sliding seat is provided with the first magnetic core for coil around the home, is provided with pedestal to coil around the home to realize the second magnetic core with the first magnetic core fitting closure；The limit switch detection structure for realizing spacing state-detection is provided with fixed seat and sliding seat.Inductor can automatically adjust the electric current in LC resonance circuit to optimum resonance operating point, to ensure that variable load is operated on optimum resonance operating point.
Description
Technical field
The present invention relates to inductive devices field, more particularly to the LC of a kind of inductor core device, inductor and inductor
Resonant tank method of adjustment.
Background technology
Ultrasonic resonator inductor currently on the market uses fixed inductance formula, can not automatically adjust, these are fixed
The disadvantage of the ultrasonic resonator inductor of inductance type is that ultrasonic equipment power maximum can only accomplish 3KW.If make
The ultrasonic equipment of one 30k then needs 10 supersonic generators and 10 sets of inductor combination operations.So not only so that ultrasound
The power unit of wave device is bulky, and whole set equipment uniformity is very poor, and integrated power supply can not be realized at all；Especially
It is that the capacitance of ultrasonic transducer becomes therewith when ultrasonic transducer is influenced by environment temperature and itself operating temperature
Change, cause the resonant operational point of ultrasonic transducer to fail to be in optimum Working, that is to say, that ultrasonic transducer institute is right
The ultrasonic resonator inductor answered does not adjust and arrives optimal inductance value, can be this variable negative in supersonic generator when so serious
Standing wave is produced in load, and causes supersonic generator to damage, easily causes ultrasonic transducer aging, greatly shortens whole ultrasound
The service life of wave device.
The content of the invention
First technical problem to be solved by this invention is to provide a kind of inductor core dress for the above-mentioned prior art
Put, which can form the resonance point that can dynamically adjust LC resonance circuit after coil around the home, to obtain
The inductor of optimum resonance operating point.
Second technical problem to be solved by this invention is to provide a kind of inductor, the inductance for the above-mentioned prior art
Device can dynamically adjust the resonance point in its LC resonance circuit, to obtain optimum resonance operating point, so as to ensure that ultrasonic wave is variable negative
Load is operated in optimum resonance operating point.
3rd technical problem to be solved by this invention is to provide a kind of LC resonance circuit adjustment side of above-mentioned inductor
Method.
Technical solution is used by the present invention solves above-mentioned first technical problem：Inductor core device, for
Around the home after coil to form inductor, it is characterised in that the inductor core device includes servomotor, fixed seat, slip
Seat and pedestal；The servomotor is arranged in fixed seat, has the ball that connection can be realized with servomotor in fixed seat
Screw, the nut seat with ball screw immovable fitting is provided with sliding seat；Connected between fixed seat and sliding seat by lead
Connect, connected between sliding seat and pedestal by the lead, to meet sliding seat between fixed seat and pedestal along guiding
Column moves back and forth；The lower end of the sliding seat is provided with the first magnetic core for coil around the home, is provided with pedestal to around the home
Coil is to realize the second magnetic core with the first magnetic core fitting closure；It is provided with the fixed seat and sliding seat and realizes spacing state
The limit switch detection structure of detection.
It is described solid as a kind of structure setting mode of the limit switch detection structure set between fixed seat and sliding seat
Limit switches frame is set in reservation, spacing the opening that spacing detection cooperation can be realized with limit switch frame is provided with sliding seat
Close output point.Further, at least provided with the first limit switch frame and the second limit switch frame, sliding seat in the fixed seat
On be provided with and can be respectively cooperating with the first limit switch frame and the second limit switch frame to realize that the limit switch of spacing detection is defeated
Go out a little.
It is described as another structure setting mode of the limit switch detection structure set between fixed seat and sliding seat
Limit switches output point is set in fixed seat, and being provided with sliding seat can realize that spacing detection is matched somebody with somebody with limit switch output point
The limit switch frame of conjunction.Further, on the sliding seat at least provided with the first limit switch frame and the second limit switch frame,
The first limit switch frame and the second limit switch frame can be respectively cooperating with to realize the spacing of spacing detection by being provided with fixed seat
Switch output point.
In order to realize that sliding seat can move back and forth along wire column between fixed seat and pedestal, with improvement, the cunning
The linear bearing for coordinating lead is provided with dynamic seat, one end of lead is fixedly connected in fixed seat, lead it is another
Hold through linear bearing to be fixedly connected on pedestal.
Technical solution is used by the present invention solves above-mentioned second technical problem：A kind of inductor, including coil, its
It is characterized in that there is current sensor, controller and above-mentioned inductor core device, coil is respectively around the home in the first magnetic core
On the second magnetic core, the coil, current sensor, controller and inductor core device form LC resonance circuit, electric current
Sensor is connected with controller；Wherein, the current sensor, to detect LC resonance loop current.
Technical solution is used by the present invention solves above-mentioned 3rd technical problem：A kind of LC resonance of the inductor
Circuit method of adjustment, it is characterised in that include the following steps：
Step 1, install capacitive variable load additional on the inductor, and set variable load and work when institute in maximum power
Corresponding current value；
Step 2, adjust on the inductor sliding seat respectively with the distance between fixed seat, pedestal, to adjust the first magnetic
Air gap between core and the second magnetic core, and realize the closure between the first magnetic core and the second magnetic core；
Step 3, the input high-frequency signal electric current in the LC resonance circuit of inductor；
Step 4, the air gap between the first magnetic core and the second magnetic core of inductor core device is adjusted, and it is real-time by controller
Record the load current changing value on variable load；
Step 5, controller automatically adjusts displacement distance of the control sliding seat between fixed seat, pedestal, to slide
The current value in increase coil is realized when distance increases between seat and pedestal, is realized when distance reduces between sliding seat and pedestal
Reduce the current value in coil；When the current value in coil reaches maximum, continue to increase magnetic core air gap, to make coil at this time
In electric current there is downward trend；
Step 6, detect, record the size variation trend of load current value in real time by controller, and record load current
It is worth from the big maximum load current value become corresponding to hour；
Step 7, set the maximum load current value and realize the optimum current operating point tuned automatically as the inductor,
That is the optimum resonance operating point of LC resonance loop dynamic adjustment.
Compared with prior art, the advantage of the invention is that：Inductor core device in the present invention, after coil around the home
Inductor can be formed, after which installs variable load additional, adjustment the distance between the first magnetic core and the second Cixi are so that two
After having minimum air gap between a magnetic core, controller automatically controls servomotor to work, to pass through the ball of immovable fitting
Screw and nut seat drive sliding seat to be moved along wire column between fixed seat, pedestal, the real-time detection line of current sensor
Circle, current sensor, controller and inductor core device form the current value in LC resonance circuit, and real-time by controller
The situation of change of record detection load current value；Controller is detecting that load current value bears from the big maximum become corresponding to hour
After set current value, the optimum current operating point tuned automatically, and order sliding seat are realized by inductor of the maximum load current
The position that holding is presently in is constant, which is exported and is worked to variable load, it is achieved thereby that
Inductor automatically can dynamically adjust LC resonance circuit to optimum resonance operating point, to ensure that it is optimal humorous that variable load is operated in
Shake on operating point.
Brief description of the drawings
Fig. 1 is the structure diagram of inductor core device in the embodiment of the present invention one；
Fig. 2 is the front view of inductor core device shown in Fig. 1；
Fig. 3 is the top view of inductor core device shown in Fig. 1；
Fig. 4 is the sectional view of inductor core device shown in Fig. 1；
Fig. 5 is the principle schematic in the LC resonance circuit of inductor in the embodiment of the present invention two；
Fig. 6 is the LC resonance circuit method of adjustment flow diagram of inductor in the embodiment of the present invention two.
Embodiment
The present invention is described in further detail below in conjunction with attached drawing embodiment.
Embodiment one
As shown in Figures 1 to 4, the inductor core device in the present embodiment, for forming inductance after coil around the home
Device, inductor core device include servomotor 1, fixed seat 2, sliding seat 3 and pedestal 4；Servomotor 1 is arranged at fixed seat 2
On, such as servomotor 1 can be by bolt arrangement fixed in fixed seat 2, having in fixed seat 2 can be with servomotor 1
Realize the ball screw 5 of connection, ball screw 5 is selected to connect servomotor 1 by indirect mode, is provided with sliding seat 3
With the nut seat 6 of 5 immovable fitting of ball screw, connected between fixed seat 2 and sliding seat 3 by lead 7, sliding seat 3 and base
Connected between seat 4 by lead 7, to meet that sliding seat 3 moves back and forth between fixed seat 2 and pedestal 4 along lead 7,
So as to which after coil around the home inductor core can be adjusted by adjusting distance between sliding seat 3 and fixed seat 2, pedestal 4
Capacitance in device；The lower end of sliding seat 3 is provided with the first magnetic core 8 for coil around the home, when in use by coil in the first magnetic
Carried out around the home on core 8；It is provided with pedestal 4 to coil around the home to realize the second magnetic core 9 with 8 fitting closure of the first magnetic core,
Under the drive of servomotor 1, ball screw 5 can slowly move up and down in nut seat 6, pass through immovable fitting to realize
Ball screw 5 and nut seat 6 drive the effect of 3 fine position of sliding seat, accurately adjust the first magnetic core 8 without polar region to realize
And second gap between magnetic core 9 technique effect, namely realize the accurate adjustment to capacitance in inductor core device；It is fixed
The limit switch detection structure 10 for realizing spacing state-detection is provided with seat 2 and sliding seat 3.Moved on sliding seat 3 certain
During position, which can detect the ultimate range that sliding seat 3 is moved up；Accordingly, in sliding seat 3
When being displaced downwardly to certain position, which can detect the ultimate range moved down of sliding seat 3 again.
Shown in Fig. 1, one kind knot as the limit switch detection structure set between fixed seat 2 and sliding seat 3
Structure set-up mode, sets limit switches frame 101, being provided with sliding seat 3 can be with limit switch frame 101 in fixed seat 2
Realize the limit switch output point 102 that spacing detection coordinates.Wherein, at least provided with the first limit switch frame in fixed seat 2
1011 and the second limit switch frame 1012, the first limit switch frame 1011 and second can be respectively cooperating with by being provided with sliding seat 3
Limit switch frame 1012 is to realize the limit switch output point 102 of spacing detection.When sliding seat 3 moves up, the limit on sliding seat 3
Bit switch output point 102 also can with moving up, once it is spacing that limit switch frame 101 is moved on limit switch output point 102
Extreme higher position, then show that sliding seat 3 is in default highest position；It is spacing on sliding seat 3 when sliding seat 3 moves down
Switch output point 102 also can with moving down, once to be displaced downwardly to limit switch frame 101 spacing most for limit switch output point 102
Bottom position, then show sliding seat 3 at default most bottom position.
Certainly, another structure setting side as the limit switch detection structure set between fixed seat 2 and sliding seat 3
Formula, it is also an option that setting limit switches output point 102 in fixed seat 2, being provided with sliding seat 3 can be with limit switch
Output point 102 realizes the limit switch frame 101 that spacing detection coordinates.Wherein, at least provided with the first limit switch on sliding seat 3
1011 and second limit switch frame 1012 of frame, the first limit switch frame 1011 and can be respectively cooperating with by being provided with fixed seat 2
Two limit switch framves 1012 are to realize the limit switch output point 102 of spacing detection.Also just say, can will be spacing shown in Fig. 1
The position of switch frame 101 and limit switch output point 102 swaps.Wherein, for this kind of limit switch detection structure
Set-up mode is not shown in figures.
In order to realize that sliding seat 3 can move back and forth along wire column 7 between fixed seat 2 and pedestal 4, with improvement, this
The linear bearing 30 for coordinating lead 7 is provided with the sliding seat 3 of embodiment, one end of lead 7 is fixedly connected on fixed seat 2
On, the other end of lead 7 passes through linear bearing 30 to be fixedly connected on pedestal 4.
Embodiment two
The inductor that the present embodiment two is provided, including described in coil, current sensor, controller and embodiment one
Inductor core device, coil is respectively around the home on the first magnetic core 8 and the second magnetic core 9, coil, current sensor, controller
And inductor core device forms LC resonance circuit, current sensor is connected with controller；Current sensor, to detect LC
Resonant tank current, current sensor can select to be set in the outside of coil, so as in moment detection LC resonance circuit
Electric current.The principle in LC resonance circuit is referring to shown in Fig. 5.Controller selection in the present embodiment uses PLC programmable controller,
Variable load selected as piezoelectric-type ultrasonic wave transducer.Wherein, due to by coil around the home in the first magnetic of inductor core device
Belong to the common knowledge of those skilled in the art on 8 and second magnetic core 9 of core, the coil in the present embodiment two is in the apparatus structure of attached drawing
It is not shown.
In order to which the capacitance dynamic adjustment process of inductor in the present embodiment two is expressly understood, the present embodiment two also provides one
The LC resonance circuit method of adjustment of the above-mentioned inductor of kind, the LC resonance circuit method of adjustment of the inductor, includes the following steps：
Step 1, capacitive variable load is installed additional on inductor, and it is corresponding when maximum power works to set variable load
Current value；
Step 2, adjust inductor on sliding seat 3 respectively with the distance between fixed seat 2, pedestal 4, to adjust the first magnetic core
8 and the second air gap between magnetic core 9, and realize the closure between the first magnetic core 8 and the second magnetic core 9；
Step 3, the input high-frequency signal electric current in the LC resonance circuit of inductor；
Step 4, the air gap between the first magnetic core 8 and the second magnetic core 9 of inductor core device is adjusted, and it is real by controller
Load current changing value on Shi Jilu variable loads；Assuming that real-time load current changing value is denoted as on recorded variable load
I (t), t>0；
Step 5, controller automatically adjusts displacement distance of the control sliding seat 3 between fixed seat 2, pedestal 4, with cunning
Dynamic distance between seat 3 and pedestal 4 realizes the current value in increase coil when increasing, distance reduces between sliding seat 3 and pedestal 4
Shi Shixian reduces the current value in coil；When the current value in coil reaches maximum, continue to increase magnetic core air gap, to make this
When coil in electric current there is downward trend；
Step 6, detect, record the size variation trend of load current value in real time by controller, and record load current
It is worth from the big maximum load current value become corresponding to hour；The maximum load current value for remembering load current is Imax；
For the load current value recorded, it is assumed that a certain moment t0Load current value be I (t0), moment t0Preceding t0-
The load current value at Δ moment is I (t0- Δ), moment t0T afterwards0The load current value at+Δ moment is I (t0+Δ)；It is if each
The load current value at moment meets I (t0-Δ)≤I(t0)<I(t0+ Δ), then moment t0Corresponding load current value I (t0) i.e.
For the maximum load current value corresponding to load current；The maximum load current value I of load current at this timemax=I (t0)；
Step 7, set maximum load current value and realize the optimum current operating point tuned automatically, i.e. LC as the inductor
The optimum resonance operating point of resonant tank dynamic adjustment.
Claims (8)
1. inductor core device, for forming inductor after coil around the home, it is characterised in that the inductor core dress
Put including servomotor (1), fixed seat (2), sliding seat (3) and pedestal (4)；The servomotor (1) is arranged at fixed seat (2)
On, there is the ball screw (5) that connection can be realized with servomotor (1) in fixed seat (2), be provided with sliding seat (3) with
The nut seat (6) of ball screw (5) immovable fitting；Connected, slided by lead (7) between fixed seat (2) and sliding seat (3)
Be connected between seat (3) and pedestal (4) by the lead (7), with meet sliding seat (3) fixed seat (2) and pedestal (4) it
Between move back and forth along lead (7)；The lower end of the sliding seat (3) is provided with the first magnetic core (8) for coil around the home, base
It is provided with seat (4) to coil around the home to realize the second magnetic core (9) with the first magnetic core (8) fitting closure；The fixed seat
(2) and on sliding seat (3) it is provided with the limit switch detection structure (10) for realizing spacing state-detection.
2. inductor core device according to claim 1, it is characterised in that be provided with the fixed seat (2) spacing
Switch frame (101), the limit switch that can realize that spacing detection coordinates with limit switch frame (101) is provided with sliding seat (3)
Output point (102).
3. inductor core device according to claim 2, it is characterised in that on the fixed seat (2) at least provided with
First limit switch frame (1011) and the second limit switch frame (1012), first can be respectively cooperating with by being provided with sliding seat (3)
Limit switch frame (1011) and the second limit switch frame (1012) are to realize the limit switch output point (102) of spacing detection.
4. inductor core device according to claim 1, it is characterised in that be provided with the fixed seat (2) spacing
Output point (102) is switched, being provided with sliding seat (3) can realize what spacing detection coordinated with limit switch output point (102)
Limit switch frame (101).
5. inductor core device according to claim 4, it is characterised in that on the sliding seat (3) at least provided with
First limit switch frame (1011) and the second limit switch frame (1012), first can be respectively cooperating with by being provided with fixed seat (2)
Limit switch frame (1011) and the second limit switch frame (1012) are to realize the limit switch output point (102) of spacing detection.
6. inductor core device according to claim 1, it is characterised in that be provided with cooperation on the sliding seat (3)
The linear bearing (30) of lead (7), one end of lead (7) are fixedly connected in fixed seat (2), lead (7) it is another
Hold through linear bearing (30) to be fixedly connected on pedestal (4).
7. a kind of inductor, including coil, it is characterised in that have in current sensor, controller and claim 1 to 6
Any one of them inductor core device, around the home on the first magnetic core and the second magnetic core, the coil, electric current pass coil difference
Sensor, controller and inductor core device form LC resonance circuit, and current sensor is connected with controller；Wherein, it is described
Current sensor, to detect LC resonance loop current.
8. the LC resonance circuit method of adjustment of inductor described in a kind of claim 7, it is characterised in that include the following steps：
Step 1, capacitive variable load is installed additional on the inductor, and it is corresponding when maximum power works to set variable load
Current value；
Step 2, adjust on the inductor sliding seat respectively with the distance between fixed seat, pedestal, with adjust the first magnetic core and
Air gap between second magnetic core, and realize the closure between the first magnetic core and the second magnetic core；
Step 3, the input high-frequency signal electric current in the LC resonance circuit of inductor；
Step 4, the air gap between the first magnetic core and the second magnetic core of inductor core device is adjusted, and is recorded in real time by controller
Load current changing value on variable load；
Step 5, controller automatically adjusts displacement distance of the control sliding seat between fixed seat, pedestal, with sliding seat with
The current value in increase coil is realized when distance increases between pedestal, being realized when distance reduces between sliding seat and pedestal reduces
Current value in coil；When the current value in coil reaches maximum, continue to increase magnetic core air gap, to make in coil at this time
There is downward trend in electric current；
Step 6, detect, record the size variation trend of load current value in real time by controller, and record load current value from
The big maximum load current value become corresponding to hour；
Step 7, set the maximum load current value and realize the optimum current operating point tuned automatically, i.e. LC as the inductor
The optimum resonance operating point of resonant tank dynamic adjustment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610913344.0A CN107967989A (en) | 2016-10-20 | 2016-10-20 | The LC resonance circuit method of adjustment of inductor core device, inductor and inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610913344.0A CN107967989A (en) | 2016-10-20 | 2016-10-20 | The LC resonance circuit method of adjustment of inductor core device, inductor and inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107967989A true CN107967989A (en) | 2018-04-27 |
Family
ID=61996389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610913344.0A Pending CN107967989A (en) | 2016-10-20 | 2016-10-20 | The LC resonance circuit method of adjustment of inductor core device, inductor and inductor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107967989A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110289764A (en) * | 2019-05-29 | 2019-09-27 | 中国国家铁路集团有限公司 | power conversion device |
| CN111696830A (en) * | 2019-03-15 | 2020-09-22 | 林祈男 | Mechanical relay switch device |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2081173U (en) * | 1990-10-25 | 1991-07-17 | 于文江 | Automatic electronic contactless switch for single-phase motor |
| US20050242792A1 (en) * | 2004-04-30 | 2005-11-03 | Raymond Zinn | High efficiency linear regulator |
| US20070024254A1 (en) * | 2005-05-23 | 2007-02-01 | Matthias Radecker | Circuitry for supplying a load with an output current |
| CN202716121U (en) * | 2012-01-18 | 2013-02-06 | 浙江大学 | Device for de-burring magnetic cores of horizontal work heads through ultrasonic wave |
| CN103064038A (en) * | 2013-01-03 | 2013-04-24 | 武汉理工大学 | Unidirection mixing magnetic levitation testing device |
| US20140097791A1 (en) * | 2012-10-04 | 2014-04-10 | Linear Technology Corporation | Auto resonant driver for wireless power transmitter sensing required transmit power for optimum efficiency |
| CN203747713U (en) * | 2014-01-23 | 2014-07-30 | 广东工业大学 | An inductance air gap adjustment device |
| CN204053429U (en) * | 2014-07-16 | 2014-12-31 | 神龙电气有限公司 | Water level sensor of washing machine magnetic core apparatus for assembling |
| CN206134469U (en) * | 2016-10-20 | 2017-04-26 | 宁波勤大机械制造有限公司 | Inductor core device and inductor |
-
2016
- 2016-10-20 CN CN201610913344.0A patent/CN107967989A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2081173U (en) * | 1990-10-25 | 1991-07-17 | 于文江 | Automatic electronic contactless switch for single-phase motor |
| US20050242792A1 (en) * | 2004-04-30 | 2005-11-03 | Raymond Zinn | High efficiency linear regulator |
| US20070024254A1 (en) * | 2005-05-23 | 2007-02-01 | Matthias Radecker | Circuitry for supplying a load with an output current |
| CN202716121U (en) * | 2012-01-18 | 2013-02-06 | 浙江大学 | Device for de-burring magnetic cores of horizontal work heads through ultrasonic wave |
| US20140097791A1 (en) * | 2012-10-04 | 2014-04-10 | Linear Technology Corporation | Auto resonant driver for wireless power transmitter sensing required transmit power for optimum efficiency |
| CN104704705A (en) * | 2012-10-04 | 2015-06-10 | 凌力尔特公司 | Auto resonant driver for wireless power transmitter sensing required transmit power for optimum efficiency |
| CN103064038A (en) * | 2013-01-03 | 2013-04-24 | 武汉理工大学 | Unidirection mixing magnetic levitation testing device |
| CN203747713U (en) * | 2014-01-23 | 2014-07-30 | 广东工业大学 | An inductance air gap adjustment device |
| CN204053429U (en) * | 2014-07-16 | 2014-12-31 | 神龙电气有限公司 | Water level sensor of washing machine magnetic core apparatus for assembling |
| CN206134469U (en) * | 2016-10-20 | 2017-04-26 | 宁波勤大机械制造有限公司 | Inductor core device and inductor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111696830A (en) * | 2019-03-15 | 2020-09-22 | 林祈男 | Mechanical relay switch device |
| CN110289764A (en) * | 2019-05-29 | 2019-09-27 | 中国国家铁路集团有限公司 | power conversion device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11540360B2 (en) | Induction heating device and method for controlling induction heating device | |
| KR100494384B1 (en) | Output control apparatus for linear compressor and control method thereof | |
| US8721817B2 (en) | Vibration welding system | |
| WO1999009634A1 (en) | Method and device for inductive transmission of electric power to a plurality of mobile consumers | |
| CN107027206B (en) | Electromagnetic heating device, heating control circuit thereof and low-power heating control method | |
| CN107967989A (en) | The LC resonance circuit method of adjustment of inductor core device, inductor and inductor | |
| US9768691B2 (en) | Integrated thermal and power control | |
| CN107623452A (en) | A kind of ultrasonic power supply and control method | |
| US10722973B2 (en) | Dynamic adjustment of weld parameter of an ultrasonic welder | |
| CN101465604A (en) | Method and apparatus to control a power supply for high efficiency | |
| CN206134469U (en) | Inductor core device and inductor | |
| CN104760845A (en) | Fabric winding tension adjusting system and method for adjusting fabric winding tension | |
| US11784576B2 (en) | High frequency power supply system with closely regulated output for heating a workpiece | |
| CN103415818B (en) | Control device for the method and apparatus of signal filtering and for process | |
| KR101549480B1 (en) | Flow regulator for pressure control method | |
| CN117245199A (en) | Ultrasonic multi-band multi-power low-stress auxiliary welding method for thin-wall part | |
| JP2011024362A (en) | High-voltage power supply device | |
| JP2014093829A (en) | Non-contact power supply system | |
| CN105247780A (en) | High frequency oscillator, high frequency welding system and method for controlling the frequency using said type of high frequency oscillator | |
| CN102810383A (en) | A controllable reactor | |
| JP2005166621A (en) | Control method of induction heating device | |
| JP2017022868A (en) | Power feeding device and power feeding method | |
| CN205407610U (en) | Feedforward circuit | |
| JP6265842B2 (en) | Insulation resistance measuring device | |
| CN108257773A (en) | A kind of controllable impedance system for ultrasonic transducer Dynamic Matching |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180427 |