CN1275378C - Power supply device - Google Patents
Power supply device Download PDFInfo
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- CN1275378C CN1275378C CN 03128548 CN03128548A CN1275378C CN 1275378 C CN1275378 C CN 1275378C CN 03128548 CN03128548 CN 03128548 CN 03128548 A CN03128548 A CN 03128548A CN 1275378 C CN1275378 C CN 1275378C
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Abstract
In a power supply device, a table selection means 20 reads out information Cd250 regarding the characteristics stored in an E2-PROM 12: a parameter table (one among 1 to 21), corresponding to the characteristics indicated by the information, is read out of a ROM 14; parameters Cd090, Cd260 and Cd265 regarding characteristics contained in the read-out parameter table are stored in a memory 15; and a CPU 11 drives an inverter 17 in accordance with a parameter, regarding the stored characteristics. Thus, by only rewriting information on the characteristics, one hardware can function as an inverter device or the like which has different characteristics, and the characteristics are changeable by the user.
Description
Technical field
The present invention relates to supply units such as frequency-converter device, stable dc power supply device, particularly relate to its characteristic and choice of capacity and change.
Background technology
Supply unit, for example frequency-converter device can be divided into following a few class according to the characteristic and the operating condition of the load that is driven.
1. the low torque load driving is used ... drive with respect to overload capacity → conveyer belt of 150%1 minutes of rated capacity, promotion and demotion etc. and use
2. 2 times low turn reducing square load driving are used ... drive with respect to overload capacity → fan of 120%1 minutes of rated capacity, pump etc. and use
Usually, drive equally under the situation of motor of 7.5kw level, if load conveyer belt etc. then use 1. low torque load driving with the 7.5kw of frequency-converter device; If load fan etc., the use 2 times low turn reducing square load driving 2. 7.5kw of frequency-converter device.
In the frequency-converter device that frequency-converter device that the low torque load driving is used and 2 times low turn reducing square load driving are used, though specified output is all 7.5kw, its characteristic, here be meant overload capacity, also have nothing in common with each other, the former is 150%1 minutes, and the latter is 120%1 minutes.This brings very big influence to the selection of use parts in the design of frequency-converter device.Same rated capacity that is to say, even can make cheap structure thereby the little employed parts of frequency-converter device of overload capacity can be the products that hangs down one-level.
Therefore, prepare two kinds of frequency-converter devices that such characteristic is different according to two kinds of purposes in the past, and taked the user to select the form of the product of different qualities according to the purposes of load.
Its result, former supply unit just has to manufacture a product according to characteristic and capacity.For this reason, the product number that should prepare according to various needs increases, and has caused the manufacturing and the managerial difficulty of product.In addition, the user also has to just determine to select for use 150%1 minutes or the characteristic of 120%1 minutes these devices in the stage of buying supply unit.
Summary of the invention
The present invention its objective is that providing a kind of needn't make each product according to characteristic and capacity in view of the above, makes the production of product and management all be easy to supply unit.
Simultaneously, provide a kind of the purchase stage needn't determination device characteristic just can buy, and buying the supply unit that the back user can change its characteristic arbitrarily.
First scheme of the present invention, in order to address the above problem, its main points are have for changing the supply unit of characteristic, possessing:
To the power supply unit of load supply capability,
The nondeclarative memory mechanism of the program of the above-mentioned supply unit of storage control,
Store the information relevant with above-mentioned characteristic characteristic information memory mechanism,
Storage and the souvenir of each characteristic corresponding parameter table recall mechanism,
The parameters memorizing mechanism of the parameter that storage execution said procedure is necessary,
Read the information relevant that is stored in the above-mentioned characteristic information memory mechanism with characteristic, to recall the mechanism from above-mentioned souvenir with the shown characteristic corresponding parameters table of this information and read, will the parameter relevant deposit in contained characteristic in the parameter list that this is read above-mentioned parameter memory mechanism table selection mechanism,
According to the parameter relevant that deposits in the above-mentioned parameter memory mechanism with characteristic, carry out said procedure, drive the power supply unit driving mechanism of above-mentioned power supply unit,
Be stored in the information relevant in the above-mentioned characteristic information memory mechanism by change, above-mentioned power supply unit can be changed into and possess different characteristics with characteristic.
Also have, alternative plan of the present invention, its main points are have for changing the supply unit of characteristic, possessing:
To the power supply unit of load supply capability,
The nondeclarative memory mechanism of the program of the above-mentioned supply unit of storage control,
Store the information relevant with capacity with above-mentioned characteristic characteristic capacity information memory mechanism,
Storage and the souvenir of each characteristic and capacity corresponding parameter table recall mechanism,
The parameters memorizing mechanism of the parameter that storage execution said procedure is necessary,
Read the information relevant that is stored in the above-mentioned characteristic capacity information memory mechanism with characteristic and capacity, to recall the mechanism from above-mentioned souvenir with shown characteristic of this information and capacity corresponding parameters table and read, will the parameter relevant with capacity deposit in contained characteristic in the parameter list that this is read above-mentioned parameter memory mechanism table selection mechanism,
According to the parameter relevant that deposits in the above-mentioned parameter memory mechanism with characteristic and capacity, carry out said procedure, drive the power supply unit driving mechanism of above-mentioned power supply unit,
Be stored in the information relevant in the above-mentioned characteristic capacity information memory mechanism by change, above-mentioned power supply unit can be changed into and make it possess different characteristics and capacity with characteristic and capacity.
Have, third party's case of the present invention, its main points are that the characteristic described in first scheme of the present invention and alternative plan is overload capacity characteristic or acceptable environment temperature characterisitic again.
Description of drawings
Fig. 1 is the calcspar of hardware formation, motor and fan that the frequency-converter device 1 of relevant embodiments of the invention is shown.
Fig. 2 is the flow table that illustrates by the performed contents processing of CPU11.
Fig. 3 is the calcspar of performance structure that the frequency-converter device 1 of relevant embodiments of the invention is shown.
Fig. 4 is the outward appearance that the frequency-converter device 1 of the existing pass embodiment of the invention is shown, and A is a front view, and B is the expanded view of guidance panel 16.
Fig. 5 is the front view that the label of double grading that the frequency-converter device 1 of the relevant embodiment of the invention is shown is represented example.
Embodiment
Below be illustrated with reference to accompanying drawing with regard to embodiments of the invention.
At first, in order to help to understand, main points of the present invention are illustrated simply.
Such as, can the general use of variable speed drive can export the VVVF frequency-converter device of variable frequency, variable voltage in order to make motor.Usually, the capacity of this frequency-converter device all is chosen to be the motor that can drive with load matched.That is to say, when motor is 7.5kw, just use the frequency-converter device of 7.5kw.
But, in case the characteristic of labor load and operating condition just know that motor seldom is in the state of the maximum rated power that needs 7.5kw continuously.Particularly load is as fan and pump, when having the load of 2 times low turn reducing square characteristics (becoming the characteristic of low torque in the scope that slowly runs), in case finish to quicken and speed-down action, when turning round under stable normal state, just can drive with very little power.Therefore, even the rated power of frequency converter is chosen to be 7.5kw, in regular event, do not need so big capacity.
Like this, fan, pump etc. are very little for load under normal condition, and need most power when motor being quickened and slow down.At this moment, when frequency-converter device moment, ground needed specified above power, frequency-converter device was with respect to common specified output, owing to be designed to be able to compensate 150%1 minutes overload capacity, therefore seldom stopped owing to the overload protection of moment.Simultaneously, be designed to the overload capacity that its load characteristic in the frequency-converter device that fan and pump use was generally 120%1 minutes.
Such occasion, frequency converter is designed to the degree of a grade following (5.5kw), at this moment, if overload capacity was reduced to 120%1 minutes from common 150%1 minutes, can drive a grade above (7.5kw) so, though hardware is identical, can be used as the frequency-converter device of 7.5kw and commercialization.
The present invention is conceived to this, makes same hardware can have multifrequency nature, such as, as the anti-overload quantity of 5.5kw 150%1 minutes with the anti-overload quantity of 7.5kw 120%1 minutes with two kinds of goods dispatch from the factory.In addition, in that being set, the place also can switch this characteristic.
Embodiment
Fig. 1 illustrates the hardware configuration of the frequency-converter device 1 of embodiment, motor 2 that this frequency converter 1 is driven, as the fan 3 of these motor 2 loads.Load is not limited to fan, also can be pump, conveyer belt, lift etc.
Frequency-converter device 1 is made of CPU (central processing unit) 11, E2-PROM (electric erasable programmable memory device) 12, FLASH memory (flash memory) 13, ROM (read-only memory) 14, RAM (random asccess memory) 15, guidance panel 16 and frequency converter portion 17.
CPU11 is according to 13 li institutes of FLASH memory program stored, carries out that each shown in the step S1～S4 as Fig. 2 handled and with the control of the common running of the .17 of frequency converter portion shown in the step S5 among the figure.In addition, each memory 12～15 is preserved each information as shown in Figure 3.
In addition, display part 19 has segment encode display 31 and 8 indicator lights (indicating indicator light and operation mode demonstration indicator light 32 that Ctrl, MPa, V, %, rpm, A, Hz etc. show).They all are made up of LED (Light-Emitting Diode, light-emitting diode), the state of segment encode display 31 display operation states, parameter sequence number, its set point and frequency converter portion 17 etc.
Fig. 3 illustrates the functional structure (still, only relevant part of the present invention) of frequency-converter device 1.Therefore memory 1, preserves the initial value of employed each parameters C d001～Cd999 in frequency converter 17 runnings owing to the E2-PROM12 by Fig. 1 realizes.
Therefore memory 2, preserves parameters C d250 owing to realized by the FLASH memory 13 of Fig. 1.Memory 3 is preserved parameter list 1～21 owing to the ROM14 by Fig. 1 realizes.Memory 4 is owing to realized by the RAM15 of Fig. 1, preserves employed each parameters C d001～Cd999 in the running of frequency converter portion 17.Table selection mechanism 20 is owing to the CPU11 by Fig. 1 realizes, being described in detail of its action will provide in the back, it is with reference to each parameter of being preserved in memory 1 and the memory 2, from memory 3, read suitable parameter list in institute's stored parameters table 1～21, each parameter in this parameter list is deposited in the memory 4.
The below action of this frequency-converter device 1 of explanation.At first, reference list 1 is illustrated with regard to 2 class features and the double grading of the frequency-converter device 1 that adopted in the relevant present embodiment.
Table 1
(A)
| 2 class features | |||
| The series title | Overload capacity | Load characteristic | Purposes |
| SHF | 150%1 minutes | Decide torque load(ing) | Conveyer belt, lift etc. |
| SPF | 120%1 minutes | The load of 2 times of low turn reducing squares | Fan, pump etc. |
(B)
| Double grading | ||||
| The series title | Specified setting | Overload capacity | Load characteristic | Purposes |
| SBT | The H pattern | 150%1 minutes | Decide torque load(ing) | Conveyer belt, lift etc. |
| The P pattern | 120%1 minutes | The load of 2 times of low turn reducing squares | Fan, pump etc. | |
Usually, selecting for use of frequency-converter device 1 is to select suitable series of deciding torque load(ing) or the load of 2 times of low turn reducing squares according to load characteristic and operating condition.In the past, frequency-converter device 1 had been prepared the product corresponding to various load characteristics, was the product of different designs.
For example, decide the product that so-called SHF is arranged that torque load(ing) is used, the product that so-called SPF is arranged that the load of 2 times of low turn reducing squares is used (table 1 (A)).The former is 150%1 minutes a overload capacity respectively, and the latter is 120%1 minutes a overload capacity, and the user selects suitable frequency-converter device 1 according to purposes.Such form here just shows with 2 class features.
With respect to this, expression is the form of the double grading of series name corresponding two load characteristics of a kind of product that are called SBT in the table 1 of present embodiment (B).
Though series is a kind, but 2 specific characters equally also can select to decide the 2 times low turn reducing square loads usefulness that torque load(ing) is used.The former is 150%1 minutes a overload capacity, and the latter is the characteristic specifications of 120%1 minutes overload capacity, and the user can set by the inner parameter of frequency-converter device 1, and sets change 2 specific characters (can not change characteristic by the user in 2 class features) arbitrarily.
Shown in Fig. 5 be double grading the time the specification table example.On the label of product, TYPE (type) is labeled as SBT-0.75K/1.5K, 0.75K represents be the user in the table 1 set the H pattern time capacity, shown in the 1.5K be the P pattern time capacity.In addition, the selected separately trait model of correspondence has been listed output current (OUTPUT), has been suitable for motor (MOTOR), overload capacity (OVERLOAD).The frequency-converter device that will can have 2 specific characters like this, in the present embodiment in a frequency-converter device shows as double grading.In addition, the power supply of label is represented the supply voltage frequency, the characteristic characterization.
The property settings of double grading is to carry out on the guidance panel 16 of the frequency-converter device 1 of Fig. 4.Guidance panel 16 is installed in the front portion of frequency-converter device 1 as previously mentioned, and it is to read and to change the device that is kept at the content of parameter in the memory 1.
When setting the characteristic of double grading, the user selects to prepare in advance the parameter sequence number Cd060 that uses for property settings, and from guidance panel 16 input characteristic arbitrary datas (1 (H pattern) or 2 (P patterns)).After performance data was transfused to, other parameter that is associated with the characteristic of frequency-converter device 1 inside was just automatically upgraded by interlock, thereby carries out the replacing of characteristic.
Secondly, quote Fig. 2 and Fig. 3, just about realizing that in a machine switching of characteristic and the method for change are illustrated.The method of switching several characteristics in this machine is that the processing (software) by CPU11 realizes, this CPU11 has adopted employed memory 4 in the common action of a plurality of permanent memories 1～3 and frequency-converter device 1.
At first, before the regular event of frequency-converter device 1, with the necessary parameter of the action of frequency-converter device 1, (Cd001～Cd999) writes permanent memory 1 in advance to utilize separately intrinsic parameter sequence number.This action uses the guidance panel 16 of Fig. 4 to carry out.For example, write operating frequency etc. on the parameter sequence number of Cd002.
According to aforesaid operations, to writing after the end of the parameter of memory 1, perhaps the power supply of frequency-converter device is opened back (Fig. 2 ' power source ON '), and the content of memory 1 all is transferred to memory 4 (step S10).Memory 4 is contents of its parameter of the actual affirmation of CPU11, and according to the main memory of the action of its content control frequency converter portion 11.Because memory 4 is by CPU11 access continually, it uses RAM15 at a high speed.In addition and since each power supply when opening the data in the memory 4 all passed on, therefore, need not permanent memory for well.
But under this state, the content of memory 4 does not also have the data relevant with characteristic of determining.Below, the data relevant with characteristic are write be transferred in the memory 4.
The data relevant with characteristic its to have the place be by the Cd060 according to memory 1: the user selects, Cd230: Capacity Selection, Cd250: (the step S30) that the table sequence number of the memory that content determined 3 that series is selected is determined.But Cd250: series select to be judged from Cd280: the Cd250 content of checking memory 1 the preservation content of serial determined value still is the value of Cd250 of memory 2.
Memory 3 is corresponding to the characteristic of various frequency-converter devices 1 and the capacity data with different piece, i.e. Cd090: accelerating time, Cd260: rated current and Cd265: information such as capacity are enclosed table sequence number 1～21 respectively and the memory that stores in advance.Owing to needn't change later on, read special-purpose PROM14 so it uses.
The determining method of the table relevant with the characteristic of memory 3 is, at first confirm the content of memory 2, the occasion that has been deposited in the data of Cd250 is just guaranteed the content of memory 2, does not have the occasion of data in memory 2, just guarantees the data content of the Cd250 of memory 1.
According to the content of the Cd250 that guarantees, as the machine of making decision.
Cd250＝0：SHF…a
Cd250＝1：SPF…b
Cd250＝2：SBT…c
Here, the SBT of c is above-mentioned double grading machine, can change its characteristic by the user.When the user changes its characteristic, by Cd060 as the characteristic of making decision.
The Cd060=1:H pattern
The Cd060=2:P pattern
That is, can determine characteristic according to its content during the Cd250=that preserves " 0 or 1 ", but when Cd250=2, then the content according to Cd060 decides characteristic.
In case the decision characteristic, at Cd230: further guarantee in the selection capacity frequency-converter device 1 capacity (～V ,～W).
Based on this characteristic and capacity information, utilization table selection mechanism 20 decides the table sequence number (1～21) of memory 3.
The table sequence number of the memory 3 that is determined, as be kept at data relevant in the table 1 with characteristic, be Cd090: accelerating time, Cd260: rated current, Cd265: each data of capacity are transferred to memory 4 as described above and write (step S40), thereby the data of relevant running that comprise whole frequency-converter device 1 of this characteristic information just all are determined.
CPU11 is according to running action, protection action and other exercises (step S50) of the content control frequency converter portion 17 of memory 4.
In addition, the present invention is not limited to the foregoing description, also following distortion can be arranged.
(1) among the embodiment, by the parameter list 1-21 of characteristic and the reference of two parameter decisions of capacity institute.An embodiment of this occasion alternative plan of the present invention.But capacity is determined by the employed parts of hardware itself.Therefore, as the fixed parts of capacity, also can only decide the parameter list that needs reference with reference to characterisitic parameter.This occasion is exactly an embodiment of the present invention's first scheme.
(2) among the embodiment, as the example of characteristic, employing be overload capacity.What can become characteristic not only is confined to overload capacity, also can be one of them as the acceptable environment temperature of device etc.At this moment, 7.5kw for example, the acceptable environment temperature is an employed hardware in the supply units of 50 degree, just can become as 5.5kw by the change characteristic, the acceptable environment temperature is 80 supply units of spending.
(3) present embodiment is a frequency-converter device.But also can have other device of characteristic or capacity, can change the same structure of employing in the device of the characteristic beyond the overload capacity according to load state.For example, the present invention also goes for stable dc power supply device etc.
(4) set characteristic after, be set at which characteristic in order to confirm easily, at apparatus surface characteristic is shown, can show can be more effective with waiting as segment encode LED.
(5) to dispatch from the factory the back by third party's switching characteristic in order preventing, the parameter of switching characteristic can only to be set with the communication function of PC by exfactory inspection, perhaps, the indefinite complicated passwords such as time in the time of also can using parameter modification.
(6) the various parameters of the device inside of decision characteristic are stored in the permanent memory, can also preserve data after the outage, but also can store the data in the memory mediums such as FLASH memory card, employing can be from the structure of supply unit plug, and can be transplanted on the characterisitic parameter of a supply unit in other the supply unit by these memory memory medium.
(7) in the present embodiment, the switching and the change of characteristic are carried out by software by CPU11, but also can pass through the switching of analog loopback or switch, or carry out by the high level computer updated stored device with communication function.
The once structure of present embodiment and the corresponding relation of the described structure of the present invention program are described at last.The frequency converter portion 17 of present embodiment is equivalent to the described power supply unit of the present invention program.Below similarly, CPU11 is equivalent to the power supply unit driving mechanism, and E2-PROM12 is equivalent to characteristic information memory mechanism, and ROM14 is equivalent to souvenir and recalls mechanism, and RAM15 is equivalent to parameters memorizing mechanism.
The present invention that the present invention's first scheme is put down in writing, the information relevant with characteristic that is stored in the above-mentioned characteristic information memory mechanism is read in table selection mechanism, to recall the mechanism from above-mentioned souvenir with the shown characteristic corresponding parameters table of this information and read, deposit parameter contained in this parameter list of reading in above-mentioned parameter memory mechanism about characteristic, the driving parameter power supply unit relevant that above-mentioned power supply unit driving mechanism deposits in according to this with characteristic, if by the replaceable information relevant with characteristic of above-mentioned steps, a hardware just can be as the supply unit effect of different qualities so.As a result, according to market, when needing the product of many kinds, setting property when dispatching from the factory just can dispatch from the factory with different characteristics with same supply unit as many kinds in the past.Therefore, need not make each product, make the manufacturing of product and management all become easy according to characteristic.
In addition, the alternative plan according to the present invention, relevant with characteristic and the capacity respectively information that is stored in the above-mentioned characteristic capacity information memory mechanism is read in table selection mechanism, to recall the mechanism from above-mentioned souvenir with shown characteristic of this information and capacity corresponding parameters table and read, deposit parameter contained in this parameter list of reading in above-mentioned parameter memory mechanism about characteristic and capacity, the driving parameter power supply unit relevant that above-mentioned power supply unit driving mechanism deposits in according to this quilt with characteristic and capacity, if by the above-mentioned steps replacing information relevant with characteristic and capacity, a hardware just can be as the supply unit effect with different qualities and capacity so.Its result, according to market, when needing the product of many kinds, setting property and capacity when dispatching from the factory just can dispatch from the factory with different characteristics and capacity with same supply unit as many kinds in the past.Therefore, need not make each product, make the manufacturing of product and management all become easy according to characteristic.
In addition, third party's case according to the present invention can be by device user change in the characteristic described in first and second scheme of the present invention, and wherein characteristic is also renewable, and a hardware just can be in the installation site as the supply unit effect with different qualities so.As a result, need not determine the characteristic of load just can buy in the purchase stage of supply unit, can arbitrary decision after buying, the change characteristic, user's range of choice broadens.
Claims (3)
1. a supply unit is characterized in that,
Be the supply unit (1) that can change characteristic, possessing has:
To the power supply unit (17) of load supply capability,
The nondeclarative memory mechanism (13) of the program of the storage above-mentioned supply unit of control (1),
Store the information relevant with above-mentioned characteristic characteristic information memory mechanism (12),
Storage and the souvenir of each characteristic corresponding parameter table recall mechanism (14),
The parameters memorizing mechanism (15) of the parameter that storage execution said procedure is necessary,
Read the information relevant that is stored in the above-mentioned characteristic information memory mechanism (12) with characteristic, to recall the mechanism (14) from above-mentioned souvenir with the shown characteristic corresponding parameters table of this information and read, will the parameter relevant deposit in contained characteristic in the parameter list that this is read above-mentioned parameter memory mechanism (15) table selection mechanism (20),
According to the parameter relevant that deposits in the above-mentioned parameter memory mechanism (15) with characteristic, carry out said procedure, drive the power supply unit driving mechanism (11) of above-mentioned power supply unit (17),
Be stored in the information relevant in the above-mentioned characteristic information memory mechanism (12) by change, above-mentioned power supply unit (17) can be changed into and possess different characteristics with characteristic.
2. a supply unit is characterized in that,
Be the supply unit (1) that can change characteristic, possessing has:
To the power supply unit (17) of load supply capability,
The nondeclarative memory mechanism (13) of the program of the storage above-mentioned supply unit of control (1),
Store the information relevant with capacity with above-mentioned characteristic characteristic capacity information memory mechanism (12),
Storage and the souvenir of each characteristic and capacity corresponding parameter table recall mechanism (14),
The parameters memorizing mechanism (15) of the parameter that storage execution said procedure is necessary,
Read the information relevant that is stored in the above-mentioned characteristic capacity information memory mechanism (12) with characteristic and capacity, to recall the mechanism (14) from above-mentioned souvenir with shown characteristic of this information and capacity corresponding parameters table and read, will the parameter relevant with capacity deposit in contained characteristic in the parameter list that this is read above-mentioned parameter memory mechanism (15) table selection mechanism (20),
According to the parameter relevant that deposits in the above-mentioned parameter memory mechanism (15) with characteristic and capacity, carry out said procedure, drive the power supply unit driving mechanism (11) of above-mentioned power supply unit (17),
Be stored in the information relevant in the above-mentioned characteristic capacity information memory mechanism (12) by change, above-mentioned power supply unit (17) can be changed into and make it possess different characteristics and capacity with characteristic and capacity.
3. as claim 1 or the described supply unit of claim 2, it is characterized in that above-mentioned characteristic is overload capacity characteristic or acceptable environment temperature characterisitic.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002146130A JP2003339169A (en) | 2002-05-21 | 2002-05-21 | Power unit |
| JP2002146130 | 2002-05-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1461101A CN1461101A (en) | 2003-12-10 |
| CN1275378C true CN1275378C (en) | 2006-09-13 |
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ID=29705207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03128548 Expired - Fee Related CN1275378C (en) | 2002-05-21 | 2003-05-10 | Power supply device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2003339169A (en) |
| CN (1) | CN1275378C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5350723B2 (en) * | 2008-09-12 | 2013-11-27 | 東芝シュネデール・インバータ株式会社 | Inverter device |
| KR101816943B1 (en) * | 2013-08-05 | 2018-01-09 | 엘에스산전 주식회사 | Copy system for copying parameter of inverter |
| BR112016021650B1 (en) * | 2014-03-27 | 2022-07-05 | Daikin Industries, Ltd | POWER CONVERSION DEVICE |
| JP2021078321A (en) * | 2019-11-13 | 2021-05-20 | 三菱電機株式会社 | Power conversion apparatus |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3397222B2 (en) * | 1994-06-09 | 2003-04-14 | 富士電機株式会社 | Control device for power converter |
-
2002
- 2002-05-21 JP JP2002146130A patent/JP2003339169A/en active Pending
-
2003
- 2003-05-10 CN CN 03128548 patent/CN1275378C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2003339169A (en) | 2003-11-28 |
| CN1461101A (en) | 2003-12-10 |
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