JPH0139315B2 - - Google Patents
Info
- Publication number
- JPH0139315B2 JPH0139315B2 JP58153823A JP15382383A JPH0139315B2 JP H0139315 B2 JPH0139315 B2 JP H0139315B2 JP 58153823 A JP58153823 A JP 58153823A JP 15382383 A JP15382383 A JP 15382383A JP H0139315 B2 JPH0139315 B2 JP H0139315B2
- Authority
- JP
- Japan
- Prior art keywords
- semiconductor element
- drive
- winding
- current
- transformer
- 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.)
- Expired
Links
- 238000004804 winding Methods 0.000 claims description 33
- 239000004065 semiconductor Substances 0.000 claims description 26
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は電流帰還型のインバータ、DC−DCコ
ンバータのような電力変換装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to power conversion devices such as current feedback inverters and DC-DC converters.
先ず、従来の電流正帰還型の電力変換装置を第
１図より説明すると、１は主スイツチング半導体
素子として用いられるトランジスタ、２はトラン
ジスタ１をオン、オフ駆動する駆動半導体素子と
して用いられるトランジスタ、３は入力巻線n1と
駆動巻線n2と正帰還巻線n3とを有する駆動トラン
ス、４は駆動トランス３に励磁エネルギを通流す
る抵抗器、５は駆動トランジスタ２の導通初期に
導通して短絡ループを形成するダイオード、６は
駆動トランジスタ２を駆動する信号を発生する駆
動信号発生回路、７は１次巻線N1と２次巻線N2
とを有する主トランス、８及び９は２次巻線N2
間の電圧を整流する整流器、１０，１１は平滑回
路を構成するリアクトル、コンデンサ、２０，２
０′は直流入力端子、２１，２１′は制御電源入力
端子、２２，２２′は直流出力端子である。第２
図は第１図の電力変換装置の各部の動作波形を示
す図であり、ａは駆動信号発生回路６が発生する
駆動信号、ｂ，ｃ，ｄは夫々駆動トランジスタ２
のコレクタ電圧、コレクタ電流、ベース電流、ｅ
は主トランジスタ１のコレクタ電流、ｆはダイオ
ード５を通流する電流である。
First, a conventional current positive feedback type power conversion device will be explained with reference to FIG. 1. 1 is a transistor used as a main switching semiconductor element, 2 is a transistor used as a driving semiconductor element to turn on and off the transistor 1, and 3 is a drive transformer having an input winding n1 , a drive winding n2 , and a positive feedback winding n3 , 4 is a resistor that passes excitation energy to the drive transformer 3, and 5 is turned on at the beginning of conduction of the drive transistor 2. 6 is a drive signal generation circuit that generates a signal to drive the drive transistor 2, and 7 is a primary winding N1 and a secondary winding N2 .
and 8 and 9 are secondary windings N 2
10 and 11 are reactors and capacitors that constitute a smoothing circuit; 20 and 2 are rectifiers that rectify the voltage between
0' is a DC input terminal, 21 and 21' are control power input terminals, and 22 and 22' are DC output terminals. Second
The figure shows the operating waveforms of each part of the power converter shown in FIG.
collector voltage, collector current, base current, e
is the collector current of the main transistor 1, and f is the current flowing through the diode 5.
次に第１図に示す電力変換装置の動作を第２図
を用いて説明する。 Next, the operation of the power converter shown in FIG. 1 will be explained using FIG. 2.
先ず導通状態にある主トランジスタ１をターン
オフさせるべく第２図に示すように時刻t1で駆動
信号発生回路６から駆動トランジスタ２のベース
にオン信号を印加すると、駆動トランジスタ２が
導通し、これに伴い駆動トランス３に蓄えられて
いたエネルギが駆動トランジスタ２、ダイオード
５及び入力巻線n1の閉回路を流れ、入力巻線n1は
短絡される。このとき変圧器作用によつて駆動巻
線n2も短絡され、この結果、駆動トランジスタ３
のn3巻線から供給されていた主トランジスタ１の
ベース電流及びベースキヤリアが導出される為主
トランジスタ１は比較的速く非導通に到る。そし
て時刻t2でダイオード５が非導通に到ると、入力
巻線n1には極性を示す黒印側が負となる電圧が発
生するため主トランジスタ１のベース・エミツタ
間には逆バイアスが印加される。更に励磁が進む
と、抵抗器４を通流していた電流が一定となり、
入力巻線n1の両端の電圧はほぼ零になる。この
後、時刻t3で駆動トランジスタ２を非導通にする
と、今まで駆動トランス３に蓄えられていたエネ
ルギによつて、駆動巻線n2には黒印側を正にする
電圧が誘起され、主トランジスタ１のベース・エ
ミツタ間を順バイアスしてこれを導通に到らしめ
る。この主トランジスタ１のスイツチングオンの
際、駆動トランス３の駆動巻線n2と正帰還巻線n3
との正帰還作用によつて主トランジスタ１は急速
に導通状態に到る。次に時刻t4で駆動信号発生回
路６から駆動トランジスタ２のベースにオン信号
が印加され、以下同様の動作を繰り返す。つま
り、主トランジスタ１をオンさせるベース電流は
この電流帰還回路の磁気結合により供給されてい
る。駆動トランジスタ２は主トランジスタ１をオ
フさせるために作用するものである。 First, as shown in FIG. 2, in order to turn off the main transistor 1 which is in a conductive state, an on signal is applied from the drive signal generation circuit 6 to the base of the drive transistor 2 at time t 1 , and the drive transistor 2 becomes conductive. Accordingly, the energy stored in the drive transformer 3 flows through the closed circuit of the drive transistor 2, the diode 5, and the input winding n1 , and the input winding n1 is short-circuited. At this time, drive winding n 2 is also short-circuited by the transformer action, and as a result, drive transistor 3
Since the base current and base carrier of the main transistor 1 supplied from the n3 winding of the main transistor 1 are derived, the main transistor 1 becomes non-conductive relatively quickly. When the diode 5 becomes non-conductive at time t2 , a voltage is generated in the input winding n1 with the black side indicating the polarity being negative, so a reverse bias is applied between the base and emitter of the main transistor 1. be done. As the excitation progresses further, the current flowing through the resistor 4 becomes constant,
The voltage across the input winding n 1 becomes approximately zero. After this, when the drive transistor 2 is made non-conductive at time t3 , a voltage that makes the black mark side positive is induced in the drive winding n2 by the energy stored in the drive transformer 3 until now. The base and emitter of the main transistor 1 are forward biased to bring it into conduction. When the main transistor 1 is switched on, the drive winding n 2 and the positive feedback winding n 3 of the drive transformer 3
The main transistor 1 quickly becomes conductive due to the positive feedback effect between the main transistor 1 and the main transistor 1. Next, at time t4 , an on signal is applied from the drive signal generation circuit 6 to the base of the drive transistor 2, and the same operation is repeated thereafter. In other words, the base current that turns on the main transistor 1 is supplied by the magnetic coupling of this current feedback circuit. The drive transistor 2 functions to turn off the main transistor 1.
しかし、この従来装置においては、起動時直流
入力端子２０，２０′の電圧の立ち上がりに対し
て、駆動信号発生回路６の電源電圧の立ち上がり
が遅れた場合、何らかの原因で外来ノイズ等が主
トランジスタ１のベースに印加されると、オフ作
用を受け持つトランジスタ２が作用が遅れて、主
トランジスタ１をオフさせるまでの間に主トラン
ス７が飽和してしまい、最終的には入力側が短絡
して主トランジスタ１等が破損するという欠点が
あつた。
However, in this conventional device, if the rise of the power supply voltage of the drive signal generation circuit 6 is delayed with respect to the rise of the voltage of the DC input terminals 20, 20' at startup, external noise etc. When the voltage is applied to the base of The drawback was that the first prize was damaged.
本発明は以上の欠点を全て除去する新規な電力
変換装置を提供するものである。
The present invention provides a novel power conversion device that eliminates all of the above drawbacks.
本発明は課題を解決するために、電流正帰還回
路を有する電力変換装置において、主スイツチン
グ半導体素子に直列に変流器の１次巻線を接続す
ると共にその２次巻線を、主スイツチング半導体
素子をオフさせる駆動半導体素子のベース・エミ
ツタ間に接続することを提案するものである。
In order to solve the problems, the present invention provides a power conversion device having a current positive feedback circuit, in which the primary winding of a current transformer is connected in series with the main switching semiconductor element, and the secondary winding is connected to the main switching semiconductor element. It is proposed to connect the base and emitter of the driving semiconductor element to turn off the element.
主スイツチング半導体素子がオフであるべき期
間に電流が流れようとすると、変流器を介して駆
動半導体素子をオンし自動的に主スイツチング半
導体素子をオフする。
If a current attempts to flow during a period when the main switching semiconductor element is supposed to be off, the driving semiconductor element is turned on via the current transformer and the main switching semiconductor element is automatically turned off.
第３図は本発明の一実施例を示す図である。同
図において、主トランジスタ１に直列に変流器１
２の１次巻線N1が接続され、且つ上記変流器１
２の２次巻線N2が駆動トランジスタ２のベー
ス・エミツタ間にダイオード１３を介して接続さ
れている。１３は駆動トランジスタ２のベース・
エミツタ間に変流器１２による逆電流が印加され
るのを防止する為のダイオードである。第４図は
第３図の実施例の各部の動作波形を示す図であ
り、ａは駆動信号発生回路６が発生する駆動信
号、ｂ，ｃ，ｄは夫々駆動トランジスタ２のコレ
クタ電圧、コレクタ電流、ベース電流、ｅは主ト
ランジスタ１のコレクタ電流、ｆはダイオード５
を通流する電流、ｇは変流器１２の２次巻線N2
を通流する電流である。
FIG. 3 is a diagram showing an embodiment of the present invention. In the same figure, a current transformer 1 is connected in series with the main transistor 1.
2 primary winding N 1 is connected, and the current transformer 1
A secondary winding N2 of the drive transistor 2 is connected between the base and emitter of the drive transistor 2 via a diode 13. 13 is the base of the drive transistor 2.
This is a diode for preventing reverse current from being applied by the current transformer 12 between the emitters. FIG. 4 is a diagram showing operating waveforms of each part of the embodiment shown in FIG. , base current, e is collector current of main transistor 1, f is diode 5
The current flowing through, g is the secondary winding N 2 of the current transformer 12
This is the current that flows through the .
次に第３図に示す実施例の動作を説明する。 Next, the operation of the embodiment shown in FIG. 3 will be explained.
通常状態における動作は第１図で説明したのと
同様であるが、この実施例においては、起動時直
流入力端子２０，２０′の電圧の立ち上がりに対
して、駆動信号発生回路６の電源電圧の立ち上が
りが遅れた場合において、何らかの原因で外来ノ
イズ等が主トランジスタ１のベースに印加された
とすると、主トランジスタ１がオンしていまう。
ところが、この場合に、変流器１２には黒点印を
正とする電流が発生し、ダイオード１３を介して
駆動トランジスタ２にベース電流を通流して主ト
ランジスタ１のオフ作用を受け持つ駆動トランジ
スタ２をオンさせ、この駆動トランジスタ２とダ
イオード５で駆動トランス３のn1巻線を短絡す
る。これに伴い、トランス３のn2巻線も短絡状態
となるので、n3巻線との正帰還作用も加わり、主
トランジスタ１は急速にオフし、従来の装置に生
じ勝ちであつた主トランジスタ１等の破損は生じ
ない。 The operation in the normal state is the same as that described in FIG. 1, but in this embodiment, the power supply voltage of the drive signal generation circuit 6 is If the rise is delayed and external noise or the like is applied to the base of the main transistor 1 for some reason, the main transistor 1 will turn on.
However, in this case, a current with the black dot as positive is generated in the current transformer 12, and the base current is passed through the drive transistor 2 through the diode 13, turning off the drive transistor 2, which is in charge of turning off the main transistor 1. Turn on the drive transistor 2 and the diode 5 to short-circuit the n1 winding of the drive transformer 3. Along with this, the n2 winding of the transformer 3 is also short-circuited, so a positive feedback effect with the n3 winding is also added, and the main transistor 1 is rapidly turned off, which tends to occur in conventional devices. No damage to the 1st class will occur.
尚、定常状態において主トランジスタ１のオン
時は駆動トランジスタ２はオフしているが、変流
器１２を介してダイオード１３を通流する電流は
駆動信号発生回路６を構成する制御トランジスタ
がオンしているので、それを介して通流するので
動作に不具合は生じない。 Note that in a steady state, when the main transistor 1 is on, the drive transistor 2 is off, but the current flowing through the diode 13 via the current transformer 12 is controlled by the control transistor that constitutes the drive signal generation circuit 6. Since the current flows through it, there is no problem in operation.
尚、以上の実施例に限定されることなくプツシ
ユプルタイプ及びブリツジタイプのインバータ・
コンバータ、他の複数の半導体素子を使用した電
流帰還型の電力変換装置に適用することができ
る。 Note that push-pull type and bridge type inverters are not limited to the above embodiments.
It can be applied to converters and other current feedback type power conversion devices using multiple semiconductor elements.
本発明は以上述べたような特徴を有するので何
らかの原因で外来ノイズ等が主スイツチング半導
体素子の制御端子に印加され主スイツチング半導
体素子がオフであるべき状態において、誤動作し
た場合でも、上記変流器を介して駆動半導体素子
をオンし自動的に主スイツチング半導体素子をオ
フするので主スイツチング半導体素子の破損等の
事故を防止することができる。したがつて、正帰
還回路の高効率、高速スイツチング特性に加えて
安全性が加わり電力変換装置としての有用性が向
上する。
Since the present invention has the features described above, even if external noise or the like is applied to the control terminal of the main switching semiconductor element for some reason and the main switching semiconductor element malfunctions in a state where it should be off, the current transformer Since the drive semiconductor element is turned on through the switch and the main switching semiconductor element is automatically turned off, accidents such as damage to the main switching semiconductor element can be prevented. Therefore, in addition to the high efficiency and high-speed switching characteristics of the positive feedback circuit, safety is added, and the usefulness as a power conversion device is improved.
第１図は従来の電力変換装置を示す図、第２図
は第１図の各部の動作波形を示す図、第３図は本
発明の一実施例を示す図、第４図は第３図の各部
の動作破形を示す図である。
１……主スイツチング半導体素子、２……駆動
半導体素子、３……駆動トランス、４……抵抗
器、５，１３……ダイオード、６……駆動信号発
生回路、７……主トランス、８，９……整流器、
１０……リアクトル、１１……コンデンサ、１２
……変流器、２０，２０′……直流入力端子、２
１，２１′……制御電源入力端子、２２，２２′…
直流出力端子。
FIG. 1 is a diagram showing a conventional power conversion device, FIG. 2 is a diagram showing operating waveforms of each part of FIG. 1, FIG. 3 is a diagram showing an embodiment of the present invention, and FIG. FIG. 1... Main switching semiconductor element, 2... Drive semiconductor element, 3... Drive transformer, 4... Resistor, 5, 13... Diode, 6... Drive signal generation circuit, 7... Main transformer, 8, 9... Rectifier,
10...Reactor, 11...Capacitor, 12
...Current transformer, 20, 20'...DC input terminal, 2
1, 21'... Control power input terminal, 22, 22'...
DC output terminal.
Claims (1)
トランス、上記１次巻線と直列接続された主スイ
ツチング半導体素子、該主スイツチング半導体素
子の制御端子に駆動信号を与える駆動巻線と該主
スイツチング半導体素子の主電流を通流させる正
帰還巻線と入力巻線とを有する駆動トランス及び
上記入力巻線に直列接続された駆動半導体素子と
を備え、該駆動半導体素子をオンさせることによ
り上記駆動トランスを介して上記主スイツチング
半導体素子をオフさせる電力変換装置において、
上記主スイツチング半導体素子に直列に変流器の
１次巻線を接続すると共に上記変流器の２次巻線
を上記駆動半導体素子のベース・エミツタ間に接
続し、上記主スイツチング半導体素子の誤導通を
抑止することを特徴とする電力変換装置。1 A main transformer having at least a primary winding and a secondary winding, a main switching semiconductor element connected in series with the primary winding, a drive winding that applies a drive signal to a control terminal of the main switching semiconductor element, and a main switching semiconductor element connected in series with the primary winding. A drive transformer having a positive feedback winding and an input winding through which the main current of the main switching semiconductor element flows, and a drive semiconductor element connected in series to the input winding, and by turning on the drive semiconductor element. In a power conversion device that turns off the main switching semiconductor element via the drive transformer,
A primary winding of a current transformer is connected in series with the main switching semiconductor element, and a secondary winding of the current transformer is connected between the base and emitter of the drive semiconductor element to prevent misconduction of the main switching semiconductor element. A power conversion device characterized by suppressing power consumption.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15382383A JPS6046771A (en) | 1983-08-23 | 1983-08-23 | Power converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15382383A JPS6046771A (en) | 1983-08-23 | 1983-08-23 | Power converter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6046771A JPS6046771A (en) | 1985-03-13 |
| JPH0139315B2 true JPH0139315B2 (en) | 1989-08-21 |
Family
ID=15570867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15382383A Granted JPS6046771A (en) | 1983-08-23 | 1983-08-23 | Power converter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6046771A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69628058T2 (en) * | 1995-10-04 | 2003-11-27 | Matsushita Electric Industrial Co., Ltd. | Switching Power Supply |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5914822Y2 (en) * | 1976-12-03 | 1984-05-01 | ソニー株式会社 | switching circuit |
-
1983
- 1983-08-23 JP JP15382383A patent/JPS6046771A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6046771A (en) | 1985-03-13 |
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