CN105634250B - The driving method and device of thyristor in a kind of rectifier - Google Patents
The driving method and device of thyristor in a kind of rectifier Download PDFInfo
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- CN105634250B CN105634250B CN201410715514.5A CN201410715514A CN105634250B CN 105634250 B CN105634250 B CN 105634250B CN 201410715514 A CN201410715514 A CN 201410715514A CN 105634250 B CN105634250 B CN 105634250B
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Abstract
The invention discloses the driving methods and device of thyristor in a kind of rectifier, when the electric current for flowing through thyristor stablizes the maintenance electric current more than the thyristor, drive signal is not sent out to the thyristor, send out the drive scheme of drive signal in compared with the prior art to thyristor always, using drive scheme provided by the invention, driving energy consumption can be reduced.
Description
Technical field
The present invention relates to the driving methods and dress of thyristor in power electronics field more particularly to a kind of rectifier
It puts.
Background technology
Many rectifiers of the prior art can all use thyristor, such as Vienna-like rectifiers shown in FIG. 1,
It just employs six thyristor S1~S6 and forms three thyrister bridge arms.
In the prior art when being driven to the thyristor in rectifier, generally use continuous impulse mode, i.e., whole
During stream device work drive signal is sent out to thyristor always.Obviously, thyristor driver scheme of the prior art, driving energy consumption compared with
Greatly.
Invention content
The embodiment of the present invention provides the driving method and device of thyristor in a kind of rectifier, to solve in the prior art
Existing thyristor driver consumes energy the problem of larger.
An embodiment of the present invention provides a kind of driving method of thyristor in rectifier, including：
For in the corresponding thyrister bridge arms of the A of the ac input signal of rectifier, positioned at the thyristor of upper bridge arm, current
Moment is not located in time interval (kT, kT+ Δ t1 '), and is not located at time interval
When interior, drive signal is not sent out to the thyristor；
For in the corresponding thyrister bridge arms of the A of the ac input signal of rectifier, positioned at the thyristor of lower bridge arm,
Current time is not located at time intervalIt is interior, and it is not located at time interval ((k
+ 1) T- Δs t2 ", (k+1) T) it is interior when, do not send out drive signal to the thyristor；
For in the corresponding thyrister bridge arms of the B of the ac input signal of rectifier, positioned at the thyristor of upper bridge arm,
Current time is not located at time intervalIt is interior, and it is not located at time intervalWhen interior, drive signal is not sent out to the thyristor；
For in the corresponding thyrister bridge arms of the B of the ac input signal of rectifier, positioned at the thyristor of lower bridge arm,
Current time is not located at time intervalIt is interior, and it is not located at time intervalWhen interior, drive signal is not sent out to the thyristor；
For in the corresponding thyrister bridge arms of the C of the ac input signal of rectifier, positioned at the thyristor of upper bridge arm,
Current time is not located at time intervalIt is interior, and it is not located at time intervalWhen interior, drive signal is not sent out to the thyristor；
For in the corresponding thyrister bridge arms of the C of the ac input signal of rectifier, positioned at the thyristor of lower bridge arm,
Current time is not located at time intervalIt is interior, and it is not located at time intervalWhen interior, drive signal is not sent out to the thyristor；
Wherein, k is integer not less than 0, and T is the period of the ac input signal of rectifier, Δ t1 ', Δ t1 ", Δ
T2 ', Δ t2 ", Δ t3 ', Δ t3 ", Δ t4 ', Δ t4 ", Δ t5 ', Δ t5 ", Δ t6 ', Δ t6 " are predetermined to be more than 0
Time span parameter.
Wherein, k is integer not less than 0, and T is the period of the ac input signal of rectifier, Δ t1 ', Δ t1 ", Δ
T2 ', Δ t2 ", Δ t3 ', Δ t3 ", Δ t4 ', Δ t4 ", Δ t5 ', Δ t5 ", Δ t6 ', Δ t6 " are predetermined to be more than 0
Time span parameter.
Beneficial effects of the present invention include：
In scheme provided in an embodiment of the present invention, for each thyristor in rectifier, corresponding time interval with
At the time of outer, i.e., at the time of the electric current for flowing through the thyristor is stablized and is more than maintenance electric current, driving letter is not sent out to the thyristor
Number, compared with the prior art in the drive scheme of drive signal is sent out to thyristor always, using driving side provided by the invention
Case, driving energy consumption are smaller.
Description of the drawings
Attached drawing is used to provide further understanding of the present invention, and a part for constitution instruction, is implemented with the present invention
Example for explaining the present invention, is not construed as limiting the invention together.In the accompanying drawings：
Fig. 1 is the schematic diagram of Vienna-like rectifiers；
Fig. 2 is the driving method schematic diagram of thyristor in the rectifier that the embodiment of the present invention 1 provides；
Fig. 3 is the current diagram that thyristor is flowed through in Vienna-like rectifiers；
Fig. 4 is the driving method schematic diagram of thyristor in the rectifier that the embodiment of the present invention 2 provides；
Fig. 5 is the driving method schematic diagram of thyristor in the rectifier that the embodiment of the present invention 3 provides.
Specific embodiment
In order to provide the implementation for reducing thyristor driver energy consumption, an embodiment of the present invention provides brilliant in a kind of rectifier
The driving method and device of brake tube illustrate the preferred embodiment of the present invention with reference to Figure of description, it should be understood that herein
Described preferred embodiment is merely to illustrate and explain the present invention, and is not intended to limit the present invention.And in the feelings not conflicted
Under condition, the feature in embodiment and embodiment in the application can be combined with each other.
First, the characteristic of thyristor is simply introduced.Thyristor is a kind of half control type device, and conducting must expire simultaneously
Sufficient two following conditions：
Condition one, thyristor bear forward voltage, i.e. anode voltage is higher than cathode voltage；
Condition two, thyristor gate pole have trigger current, i.e., there are drive signals.
Thyristor is once be connected, and gate pole is with regard to effect out of hand, no matter whether drive signal also exists, as long as flowing through brilliant lock
The electric current of pipe maintains electric current not less than it, and thyristor is all held on.Usual maintenance electric current very little, close to zero.
Therefore, when the electric current for flowing through thyristor is stablized and is more than its maintenance electric current, the driving letter of the thyristor can be removed
Number；Only the electric current for flowing through thyristor it is unstable be more than its maintain electric current when, just send out drive signal to thyristor.
Based on above-mentioned principle, an embodiment of the present invention provides the driving method and device of thyristor in a kind of rectifier, under
The driving method and device of thyristor provided in an embodiment of the present invention are retouched in detail with specific embodiment with reference to attached drawing in face
It states.
Embodiment 1：
The embodiment of the present invention 1 provides a kind of driving method of thyristor in rectifier, as shown in Fig. 2, including：
For in the corresponding thyrister bridge arms of the A of the ac input signal of rectifier, positioned at the thyristor of upper bridge arm, current
Moment is not located in time interval (kT, kT+ Δ t1 '), and is not located at time interval
When interior, drive signal is not sent out to the thyristor；
For in the corresponding thyrister bridge arms of the A of the ac input signal of rectifier, positioned at the thyristor of lower bridge arm,
Current time is not located at time intervalIt is interior, and it is not located at time interval ((k+
1) T- Δs t2 ", (k+1) T) it is interior when, do not send out drive signal to the thyristor；
For in the corresponding thyrister bridge arms of the B of the ac input signal of rectifier, positioned at the thyristor of upper bridge arm,
Current time is not located at time intervalIt is interior, and it is not located at time intervalWhen interior, drive signal is not sent out to the thyristor；
For in the corresponding thyrister bridge arms of the B of the ac input signal of rectifier, positioned at the thyristor of lower bridge arm,
Current time is not located at time intervalIt is interior, and it is not located at time intervalWhen interior, drive signal is not sent out to the thyristor；
For in the corresponding thyrister bridge arms of the C of the ac input signal of rectifier, positioned at the thyristor of upper bridge arm,
Current time is not located at time intervalIt is interior, and it is not located at time intervalWhen interior, drive signal is not sent out to the thyristor；
For in the corresponding thyrister bridge arms of the C of the ac input signal of rectifier, positioned at the thyristor of lower bridge arm,
Current time is not located at time intervalIt is interior, and it is not located at time intervalWhen interior, drive signal is not sent out to the thyristor；
Wherein, k is integer not less than 0, and T is the period of the ac input signal of rectifier, Δ t1 ', Δ t1 ", Δ
T2 ', Δ t2 ", Δ t3 ', Δ t3 ", Δ t4 ', Δ t4 ", Δ t5 ', Δ t5 ", Δ t6 ', Δ t6 " are predetermined to be more than 0
Time span parameter.
Further, in the corresponding thyrister bridge arms of the A of the ac input signal of rectifier, positioned at upper bridge arm
Thyristor is located at current time in time interval (kT, kT+ Δ t1 ') or positioned at time intervalWhen interior, just drive signal is sent out to the thyristor；
For in the corresponding thyrister bridge arms of the A of the ac input signal of rectifier, positioned at the thyristor of lower bridge arm,
Current time is located at time intervalIt is interior or positioned at time interval ((k+1)
T- Δs t2 ", (k+1) T) it is interior when, just send out drive signal to the thyristor；
For in the corresponding thyrister bridge arms of the B of the ac input signal of rectifier, positioned at the thyristor of upper bridge arm,
Current time is located at time intervalIt is interior or positioned at time intervalWhen interior, just drive signal is sent out to the thyristor；
For in the corresponding thyrister bridge arms of the B of the ac input signal of rectifier, positioned at the thyristor of lower bridge arm,
Current time is located at time intervalIt is interior or positioned at time intervalWhen interior, just drive signal is sent out to the thyristor；
For in the corresponding thyrister bridge arms of the C of the ac input signal of rectifier, positioned at the thyristor of upper bridge arm,
Current time is located at time intervalIt is interior or positioned at time intervalWhen interior, just drive signal is sent out to the thyristor；
For in the corresponding thyrister bridge arms of the C of the ac input signal of rectifier, positioned at the thyristor of lower bridge arm,
Current time is located at time intervalIt is interior or positioned at time intervalWhen interior, just drive signal is sent out to the thyristor.
In Fig. 2, i1 is the electric current for the corresponding upper bridge arm thyristors of A for flowing through ac input signal, and g1 is the thyristor
Drive signal；I2 is the electric current for the corresponding lower bridge arm thyristors of A for flowing through ac input signal, and g2 is the drive of the thyristor
Dynamic signal；I3 is the electric current for the corresponding upper bridge arm thyristors of B for flowing through ac input signal, and g3 is that the driving of the thyristor is believed
Number；I4 is the electric current for the corresponding lower bridge arm thyristors of B for flowing through ac input signal, and g4 is the drive signal of the thyristor；
I5 is the electric current for the corresponding upper bridge arm thyristors of C for flowing through ac input signal, and g5 is the drive signal of the thyristor；I6 is
The electric current of the corresponding lower bridge arm thyristors of C of ac input signal is flowed through, g6 is the drive signal of the thyristor.
Due to for each thyristor in rectifier, carved only at the beginning of the turn on thyristors half cycle nearby and
Near finish time, the electric current for flowing through the thyristor is smaller, in fact it could happen that the situation of electric current is maintained less than it, therefore, only at this
It is carved at the beginning of turn on thyristors half cycle nearby and finish time nearby sends out drive signal to the thyristor, you can ensure the crystalline substance
Brake tube is constantly in conducting state.
Above-mentioned rectifier is specifically as follows Vienna-like rectifiers, below just by taking Vienna-like rectifiers as an example,
The driving method of thyristor that the embodiment of the present invention 1 provides is illustrated.
In Vienna-like rectifiers, when Power Factor Correction Control is good, flow through six thyristor S1~S6's
Electric current is as shown in Figure 2.However, in Vienna-like rectifiers, the connection of thyristor rear end is Boost circuit, because
This, if the current waveform for flowing through thyristor is amplified, it can be seen that the electric current for flowing through thyristor is substantially that a sinusoidal fundamental wave is folded
Add the synthetic waveform of triangular wave.Such as shown in Fig. 3, the as amplified portion current waveforms for flowing through thyristor S1 and S2.It can
See, flow through the electric current of thyristor S1 in time intervalInside there is the situation of discontinuous current, i.e., flow through crystalline substance at this time
The electric current of brake tube S1 is unstable to be more than its maintenance electric current, to ensure that thyristor S1 is connected in this section, needs to thyristor S1
Send out drive signal, time intervalThe i.e. corresponding above-mentioned time span parameter, Δ t1 " of siding-to-siding block length；Flow through crystalline substance
The electric current of brake tube S2 is in time intervalInside there is the situation of discontinuous current, i.e., flow through thyristor S2's at this time
Electric current is unstable to be more than its maintenance electric current, to ensure that thyristor S2 is connected in this section, needs to send out driving to thyristor S2
Signal, time intervalThe i.e. corresponding above-mentioned time span parameter, Δ t2 ' of siding-to-siding block length.
From the point of view of whole cycle, drive signal twice should be sent out to single thyristor in each period, respectively in the crystalline substance lock
It is carved nearby and near finish time at the beginning of pipe conducting half cycle.The duration of drive signal should be slightly bigger than discontinuous current state
Duration, remaining period can cancel driving.
When it is implemented, it can determine that each thyristor of Vienna-like rectifiers occurs electric current and breaks beforehand through experiment
Continuous time interval length, and then determine each time span parameter, Δ t1 ', Δ t1 ", Δ t2 ', Δ t2 ", Δ t3 ', Δ t3 ", Δ
t4′、Δt4″、Δt5′、Δt5″、Δt6′、Δt6″。
Certainly, no matter in which kind of rectifier, the determining of each time span parameter also should be taken into account the corresponding brilliant lock of driving
The shortest time length of drive signal needed for pipe, i.e., each time span parameter should ensure that not less than needed for driving respective thyristor
Drive signal shortest time length.
As it can be seen that using the driving method of thyristor in the rectifier of the offer of the embodiment of the present invention 1, only thyristor is being flowed through
Electric current it is unstable be more than its maintain electric current when, just send out drive signal to thyristor, driving can be reduced compared with the prior art
Energy consumption improves the efficiency of rectifier.
It should be noted that in the rectifier that the embodiment of the present invention 1 provides in the driving method of thyristor, drive signal tool
Body can be single pulse signal, or pulse sequence signal, as long as drive signal can cover the electricity for flowing through thyristor
Stream is likely less than its section for maintaining electric current, and the present invention does not limit the specific implementation form of drive signal.
In other embodiments of the invention, at least two brilliant locks in rectifier can also be included in a drive signal
The drive signal of pipe.
Embodiment 2：
Drive signal channel in view of the thyristor of rectifier may be common, i.e., six thyristor S1~S6 are used
Identical drive signal control, carries out comprehensive driving.At this point it is possible to using the logic of "or", by six thyristors in rectifier
Drive signal g1~g6 of S1~S6 synthesizes a drive signal, and each thyristor receives the driving letter of six thyristors
Number, g1~6 as shown in Figure 4.
Embodiment 3：
According to the limitation of actual drive signal channel, can also be operated alone using part thyristor, part thyristor is comprehensive
Close driving.For example, thyristor S1, S4 are individually controlled, thyristor S2, S3, S5, S6 Comprehensive Control, at this time drive signal show
It is intended to as shown in figure 5, g2,3,4,6 be the drive signal of thyristor S2, S3, S5, S6.
Wherein, k is integer not less than 0, and T is the period of the ac input signal of rectifier, Δ t1 ', Δ t1 ", Δ
T2 ', Δ t2 ", Δ t3 ', Δ t3 ", Δ t4 ', Δ t4 ", Δ t5 ', Δ t5 ", Δ t6 ', Δ t6 " are predetermined to be more than 0
Time span parameter.
Further, which is specially single pulse signal or pulse sequence signal.
Further, the drive signal of at least two thyristors in the rectifier is included in a drive signal.
Further, which is specially Vienna-like rectifiers.
In conclusion using scheme provided in an embodiment of the present invention, the driving energy consumption of thyristor is smaller in rectifier, improves
The efficiency of rectifier.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
God and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (10)
1. a kind of driving method of thyristor in rectifier, which is characterized in that including：
For in the corresponding thyrister bridge arms of the A of the ac input signal of rectifier, positioned at the thyristor of upper bridge arm, at current time
It is not located in time interval (kT, kT+ Δ t1 '), and is not located at time interval
When interior, drive signal is not sent out to the thyristor；
For in the corresponding thyrister bridge arms of the A of the ac input signal of rectifier, positioned at the thyristor of lower bridge arm, current
Moment is not located at time intervalIt is interior, and it is not located at time interval ((k+1) T-
Δ t2 ", (k+1) T) it is interior when, do not send out drive signal to the thyristor；
For in the corresponding thyrister bridge arms of the B of the ac input signal of rectifier, positioned at the thyristor of upper bridge arm, current
Moment is not located at time intervalIt is interior, and it is not located at time intervalWhen interior, drive signal is not sent out to the thyristor；
For in the corresponding thyrister bridge arms of the B of the ac input signal of rectifier, positioned at the thyristor of lower bridge arm, current
Moment is not located at time intervalIt is interior, and it is not located at time intervalWhen interior, drive signal is not sent out to the thyristor；
For in the corresponding thyrister bridge arms of the C of the ac input signal of rectifier, positioned at the thyristor of upper bridge arm, current
Moment is not located at time intervalIt is interior, and it is not located at time intervalWhen interior, drive signal is not sent out to the thyristor；
For in the corresponding thyrister bridge arms of the C of the ac input signal of rectifier, positioned at the thyristor of lower bridge arm, current
Moment is not located at time intervalIt is interior, and it is not located at time intervalWhen interior, drive signal is not sent out to the thyristor；
Wherein, k is integer not less than 0, and T is the period of the ac input signal of rectifier, Δ t1 ', Δ t1 ", Δ t2 ', Δ
T2 ", Δ t3 ', Δ t3 ", Δ t4 ', Δ t4 ", Δ t5 ', Δ t5 ", Δ t6 ', Δ t6 " for it is predetermined, not less than driving phase
Answer the time span parameter of the shortest time length of the drive signal needed for thyristor.
2. the method as described in claim 1, which is characterized in that further include：
For in the corresponding thyrister bridge arms of the A of the ac input signal of rectifier, positioned at the thyristor of upper bridge arm, current
Moment is located in time interval (kT, kT+ Δ t1 ') or positioned at time interval
When interior, drive signal is sent out to the thyristor；
For in the corresponding thyrister bridge arms of the A of the ac input signal of rectifier, positioned at the thyristor of lower bridge arm, current
Moment is located at time intervalIt is interior or positioned at time interval ((k+1) T- Δs
T2 ", (k+1) T) it is interior when, send out drive signal to the thyristor；
For in the corresponding thyrister bridge arms of the B of the ac input signal of rectifier, positioned at the thyristor of upper bridge arm, current
Moment is located at time intervalIt is interior or positioned at time intervalWhen interior, drive signal is sent out to the thyristor；
For in the corresponding thyrister bridge arms of the B of the ac input signal of rectifier, positioned at the thyristor of lower bridge arm, current
Moment is located at time intervalIt is interior or positioned at time intervalWhen interior, drive signal is sent out to the thyristor；
For in the corresponding thyrister bridge arms of the C of the ac input signal of rectifier, positioned at the thyristor of upper bridge arm, current
Moment is located at time intervalIt is interior or positioned at time intervalWhen interior, drive signal is sent out to the thyristor；
For in the corresponding thyrister bridge arms of the C of the ac input signal of rectifier, positioned at the thyristor of lower bridge arm, current
Moment is located at time intervalIt is interior or positioned at time intervalWhen interior, drive signal is sent out to the thyristor.
3. method as claimed in claim 1 or 2, which is characterized in that the drive signal be specially single pulse signal or
Pulse sequence signal.
4. method as claimed in claim 1 or 2, which is characterized in that the driving of at least two thyristors in the rectifier
Signal is included in a drive signal.
5. method as claimed in claim 1 or 2, which is characterized in that the rectifier is specially Vienna-like rectifiers.
6. the driving device of thyristor in a kind of rectifier, which is characterized in that for the A of the ac input signal for rectifier
In corresponding thyrister bridge arm, positioned at the thyristor of upper bridge arm, it is not located at time interval (kT, kT+ Δ t1 ') at current time
It is interior, and it is not located at time intervalT when) interior, drive signal is not sent out to the thyristor；
For in the corresponding thyrister bridge arms of the A of the ac input signal of rectifier, positioned at the thyristor of lower bridge arm, current time not
Positioned at time interval It is interior, and it is not located at time interval ((k+1) T- Δs t2 ", (k+
1) T) it is interior when, do not send out drive signal to the thyristor；For the corresponding thyrister bridge arms of the B of the ac input signal of rectifier
In, positioned at the thyristor of upper bridge arm, it is not located at time interval at current time It is interior,
And it is not located at time intervalWhen interior, driving letter is not sent out to the thyristor
Number；For in the corresponding thyrister bridge arms of the B of the ac input signal of rectifier, positioned at the thyristor of lower bridge arm, current
Moment is not located at time interval It is interior, and it is not located at time intervalWhen interior, drive signal is not sent out to the thyristor；Exchange for rectifier
In the corresponding thyrister bridge arms of C of input signal, positioned at the thyristor of upper bridge arm, it is not located at time interval at current time It is interior, and it is not located at time interval
When interior, drive signal is not sent out to the thyristor；For the corresponding thyrister bridge arms of the C of the ac input signal of rectifier
In, positioned at the thyristor of lower bridge arm, it is not located at time interval at current time
It is interior, and it is not located at time intervalWhen interior, driving is not sent out to the thyristor
Signal；
Wherein, k is integer not less than 0, and T is the period of the ac input signal of rectifier, Δ t1 ', Δ t1 ", Δ t2 ', Δ
T2 ", Δ t3 ', Δ t3 ", Δ t4 ', Δ t4 ", Δ t5 ', Δ t5 ", Δ t6 ', Δ t6 " for it is predetermined, not less than driving phase
Answer the time span parameter of the shortest time length of the drive signal needed for thyristor.
7. device as claimed in claim 6, which is characterized in that be additionally operable to opposite for the A of the ac input signal of rectifier
In the thyrister bridge arm answered, positioned at the thyristor of upper bridge arm, be located at current time in time interval (kT, kT+ Δ t1 ') or
Person is located at time intervalWhen interior, drive signal is sent out to the thyristor；For whole
In the corresponding thyrister bridge arms of A for flowing the ac input signal of device, positioned at the thyristor of lower bridge arm, when being located at current time
Between section It is interior or interior positioned at time interval ((k+1) T- Δs t2 ", (k+1) T)
When, send out drive signal to the thyristor；For in the corresponding thyrister bridge arms of the B of the ac input signal of rectifier, position
In the thyristor of upper bridge arm, it is located at time interval at current time It is interior, Huo Zhewei
In time intervalWhen interior, drive signal is sent out to the thyristor；For rectifier
Ac input signal the corresponding thyrister bridge arms of B in, positioned at the thyristor of lower bridge arm, be located at time interval at current timeIt is interior or positioned at time interval
When interior, drive signal is sent out to the thyristor；For in the corresponding thyrister bridge arms of the C of the ac input signal of rectifier, being located at
The thyristor of upper bridge arm is located at time interval at current timeIt is interior or be located at
Time intervalWhen interior, drive signal is sent out to the thyristor；For rectifier
In the corresponding thyrister bridge arms of C of ac input signal, positioned at the thyristor of lower bridge arm, it is located at time interval at current timeIt is interior or positioned at time interval
When interior, drive signal is sent out to the thyristor.
8. device as claimed in claims 6 or 7, which is characterized in that the drive signal be specially single pulse signal or
Pulse sequence signal.
9. device as claimed in claims 6 or 7, which is characterized in that the driving of at least two thyristors in the rectifier
Signal is included in a drive signal.
10. device as claimed in claims 6 or 7, which is characterized in that the rectifier is specially Vienna-like rectifiers.
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| CN101295937A (en) * | 2007-04-26 | 2008-10-29 | 恩益禧电子股份有限公司 | Inverter apparatus and a semiconductor device used for the same |
| CN103560688A (en) * | 2010-02-10 | 2014-02-05 | 株式会社日立制作所 | Power conversion device |
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| JP4110926B2 (en) * | 2002-07-11 | 2008-07-02 | 富士電機デバイステクノロジー株式会社 | DC-DC converter |
| US8299730B2 (en) * | 2010-02-09 | 2012-10-30 | Power Integrations, Inc. | Integrated on-time extension for non-dissipative bleeding in a power supply |
| US9548651B2 (en) * | 2013-02-22 | 2017-01-17 | Texas Instruments Incorporated | Advanced control circuit for switched-mode DC-DC converter |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101295937A (en) * | 2007-04-26 | 2008-10-29 | 恩益禧电子股份有限公司 | Inverter apparatus and a semiconductor device used for the same |
| CN103560688A (en) * | 2010-02-10 | 2014-02-05 | 株式会社日立制作所 | Power conversion device |
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