JPS5895984A - Dc/ac converter - Google Patents
Dc/ac converterInfo
- Publication number
- JPS5895984A JPS5895984A JP56193170A JP19317081A JPS5895984A JP S5895984 A JPS5895984 A JP S5895984A JP 56193170 A JP56193170 A JP 56193170A JP 19317081 A JP19317081 A JP 19317081A JP S5895984 A JPS5895984 A JP S5895984A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- output
- switching
- voltage
- pulse signal
- 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
- 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
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
- H02M7/5387—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
- H02M7/53871—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration with automatic control of output voltage or current
Abstract
Description
【発明の詳細な説明】
本発明はスイッチング回路を一対直列接続して直諏電圧
を印加しスイッチング−路のｍａｔ点より交流電圧を散
り出す直流−交流変換＠＊に係る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a DC-AC conversion @* in which a pair of switching circuits are connected in series, a direct voltage is applied, and an AC voltage is emitted from the mat point of the switching path.
一般にこの櫨１流−交流変換装置はスイッチング回路を
一対直列接続して直流電圧を印加しスイッチング回路の
接続点より交流電圧を散り出すものがあったが、このス
イッチング回路は互いに入力信号の基準電位が相違する
ために夫々電気的に独立した電＃装璽及びその電源装置
より電源供給を受ける駆動回路を用いて駆動用パルス信
号を入力するＩＩＫＬ、ていた。従って、電気的に独立
した電源装置の数が増え仁れに伴って消費電力が増加す
ると共に装置が大振化するというＢ−があった本発明は
上記の謙な点に鑑み、電気的に独立した電＃１ｓ１値の
数を少くして消費電流の減少及び装置の小製化を図るこ
とを目的としたものである。Generally, this 1st current to AC converter has a pair of switching circuits connected in series to apply DC voltage and emit AC voltage from the connection point of the switching circuits. Because of the difference in the drive pulse signals, the drive pulse signals were input using electrically independent electrical equipment and drive circuits that received power from their power supplies. Therefore, as the number of electrically independent power supply devices increases, the power consumption increases and the device becomes larger. The purpose is to reduce the number of independent voltage #1s1 values to reduce current consumption and downsize the device.
以下本発明を一実施例として搗けた１Ｉｌａ幽に基づい
て説明すると、１．１．１は三相交流電路であって三相
交流電圧が印加される。２は三相金波整流平滑囲路であ
って、三相交流電路１．１．１の三相交流電圧をブリッ
ジ状に接続された整流系子２晶により全波整流しコンデ
ンサ２ｂ Ｋより平滑して直流電圧を出力するのである
。３・・・は電界効米トランジスタ５ａ・・・を用いた
６個のスイッチング回路であって、一対のスイッチング
回路３．３を直列接続し且つこの直列接続したスイッチ
ング（ロ）路５．３を三組並列接続して三相全波整流平
滑回路２の出力に接続する。４は交流電動機であって、
直列接続したスイッチング回路３．３の接続点より導出
される交流電圧が印加される。５は電源回路であって、
三相交流電路１．１．１の二線間電圧を膨圧１１５ｍに
て下げこの降下した低圧交流電圧を整流平滑回路５ｋに
て整流平滑して直流電圧を出力する。６は６個のスイッ
チング回路３・・・を駆動するためのパルス信号を作る
制御回路であって、電＃回路５の電源供給を受けて各々
１２０１［の遅れをもつ３個の出力パルス信号Ａ、 Ｂ
、Ｃとその出力パルス信号Ａ、Ｂ、Ｃと反対の３個の出
力パルス０１Ｅ、Ｆとを第２図の如く出力する。尚、こ
のパルス信号Ａ、Ｂ、Ｃ％Ｄ、Ｅ。Below, the present invention will be explained based on the developed 1Ila system as an example. 1.1.1 is a three-phase AC power line to which a three-phase AC voltage is applied. 2 is a three-phase gold-wave rectifying smoothing circuit, in which the three-phase AC voltage of the three-phase AC line 1.1.1 is full-wave rectified by a rectifier system 2 crystals connected in a bridge shape, and is smoothed by a capacitor 2bK. It outputs a DC voltage. 3... are six switching circuits using field effect transistors 5a..., in which a pair of switching circuits 3.3 are connected in series, and a switching (b) path 5.3 connected in series is connected. Three sets are connected in parallel and connected to the output of the three-phase full-wave rectifying and smoothing circuit 2. 4 is an AC motor,
An alternating current voltage derived from the connection point of the switching circuits 3.3 connected in series is applied. 5 is a power supply circuit,
The two-line voltage of the three-phase AC power line 1.1.1 is lowered at a swelling pressure of 115 m, and the lowered low-voltage AC voltage is rectified and smoothed by a rectifier and smoothing circuit 5k to output a DC voltage. Reference numeral 6 denotes a control circuit that generates pulse signals for driving the six switching circuits 3 . , B
, C and three output pulses 01E, F opposite to the output pulse signals A, B, and C are outputted as shown in FIG. Incidentally, these pulse signals A, B, C%D, E.
Ｆの周期は１ｊｆ抵抗１１１６ａａ）操作により変化出
来る。以下この制御回路６とスィッチ５ング回路５・・
・との間に介在した駆動回路Ｘを説明すると７は発振−
路てあって、電ｇ回路５の電源供給を受けて制御−路６
の出力パルス信号Ａ、Ｂ、Ｃ，Ｌ）、Ｅ、Ｆより周期の
短いパルス信Ｖ−％ ｂを出力する。こ（ＤＩ４にスｌ
ｉ ’Ｉｆ ａ 、 ｂは互いに反対の信号であって第
３図の如く出力する。８はアンド回路であって、電ｔ２
回路５の電源供給を受けて発振回路７のパルス信ｖａ、
ｂと制御回路６の出力パルス信ｖＡ、Ｂ％Ｃ，Ｄ、Ｋ、
Ｆとの論理積をとり出力する。この出力信号は制御回路
６の出力パルス信ＱＡ％Ｂ、Ｃ，Ｄ、ｉ！、Ｆの各々の
一つに対して２つの信置を出力するのてあり全部で認の
信号を出力する。例えは一つの出力パルス信号Ａに対し
てはパル゛ス信ｖｍを論理積した出力信ｑ Ａ ａとパ
ルス信ｗｂを論理積した出力信号Ａｂとを出力する。以
下出力パルス信Ｊｉ＃Ｂ％Ｃ，Ｄ、に、Ｆに対しても同
様に出力する。９はプッシュプル回路であって、電＃Ｘ
ｕ路５の電源供給を受けてアンド回路８の出力ｆＩｆ号
Ａａ、Ａｋ＋・・・に応動する。Ｗはハルストランスで
あって、プッシュプル回路９の出力に応答して交互の磁
束を発生し二次出力を出す。The period of F can be changed by operating the 1jf resistor 1116aa). Below, this control circuit 6 and switching circuit 5...
・Explaining the drive circuit X interposed between 7 and 7 oscillates -
The control circuit 6 receives the power supply from the electric circuit 5.
A pulse signal V-%b having a shorter period than the output pulse signals A, B, C, L), E, and F is output. This (sl to DI4)
i'If a and b are mutually opposite signals and are output as shown in FIG. 8 is an AND circuit, and the voltage t2
The pulse signal va of the oscillation circuit 7 receives the power supply from the circuit 5,
b and the output pulse signals of the control circuit 6 vA, B%C, D, K,
The AND with F is taken and output. This output signal is the output pulse signal QA%B, C, D, i! of the control circuit 6. , F, and output two confirmation signals for each one. For example, for one output pulse signal A, an output signal qAa, which is the AND of the pulse signal vm, and an output signal Ab, which is the AND of the pulse signal wb, are output. The following output pulse signals Ji#B%C, D, and F are similarly outputted. 9 is a push-pull circuit, and the voltage #X
In response to the power supply from the u path 5, it responds to the output fIf number Aa, Ak+, etc. of the AND circuit 8. W is a Hals transformer that generates alternate magnetic flux in response to the output of the push-pull circuit 9 and outputs a secondary output.
例入は制御回路６の一つの出力パルス信無人に対して出
力されたアンド四路８の出力信号Ａ畠、Ａｂの一方が一
方向に肖って磁束が発生すると他方がその逆の方向に向
って磁束が発生する様にプッシュプル回路９にて電流を
流すのであり、その２次出力として第５図に示す如く正
負方向にパルス信号Ａ１が出力されるのである。以下制
御−路６の憧の出力パルス信号Ｂ、Ｃ，Ｄ、に、Ｆに対
しても同様に正負方向のパルス信号ＩＮ 、ＣＩ 、Ｄ
Ｉ、Ｅｌ、Ｆｌが出力される。１１は整流回路であって
、パルストランスＷの２次出力である正負方向のパルス
信号ＡＩ 、Ｂ１ 、ＣＩ 、ｌ）１ 、Ｅｌ 、Ｆｌ
を全波整流してパルス信号Ａ２ 、Ｂ２ 、Ｃ２、Ｂ２
．１２、）２を出力するｅ Ｉ ６図は出力された一つ
のパルス４１号Ａ２の信号であって、第２図に示した制
御回路６の出力パルス信号Ａと同じ出力がされるのであ
り、悔のパルス信４ｔＢ２、Ｃ２、ｌ）２ 、Ｃ２、Ｆ
２に対しても制御１路６の出力パルス信号Ｂ１Ｃ，Ｄ、
に、Ｆと同じ出力がされる５、このパルス信！Ａ２ 、
Ｂ２ 、Ｃ２、Ｂ２ 、Ｆ２ 、Ｆ２は、夫々パルスト
ランスｌＯにより基畢電圧か独立したものとなってい−
る。この整流回路１１の出力パルス信号Ａ２、Ｂ２ 、
Ｃ２、ＤＩ 、Ｆ２ 、Ｆ２を夫々スイッチング回路３
・・・に入力するのであり、出力パルス信号Ａ２ 、Ｂ
２ 、Ｃ２、Ｂ２．１２ 、Ｆ２の中で互いに反対とな
っている信号Ａ２、Ｂ２と信ＶＢ２、Ｆ２と信号ｃ２、
Ｆ２ とが直列接続されたスイッチング回路３．３の夫
々３組に入力されるのである。この信号Ａ２ 、Ｂ２
、Ｃ２、Ｂ２ 、Ｆ２ 、Ｆ２に応答してスイッチング
回路３・・・が動作すること番こより第７図番と示す如
く夫々１２０［の遅れをもつ三相交流電圧Ｒ，８，Ｔが
出力される。従って制御回路６の可変抵抗器６ａの操作
によりスイッチング回路３・・・より出力される三相交
流電圧ＩＬ、Ｓ、Ｔの周波数が変化出来、交流電動機４
の回転数を変化出来る。For example, when one output pulse signal of the control circuit 6 is outputted to the output signal A and the output signal A and the four-way circuit 8 in one direction, and a magnetic flux is generated, the other is in the opposite direction. A current is passed through the push-pull circuit 9 so as to generate magnetic flux in the opposite direction, and a pulse signal A1 is output in the positive and negative directions as a secondary output as shown in FIG. Below, the desired output pulse signals B, C, D of the control path 6, as well as positive and negative direction pulse signals IN, CI, D for F.
I, El, and Fl are output. Reference numeral 11 denotes a rectifier circuit, which receives positive and negative pulse signals AI, B1, CI, l)1, El, Fl, which are the secondary outputs of the pulse transformer W.
is full-wave rectified to produce pulse signals A2, B2, C2, B2
．． 12, ) 2 output e I 6 Figure is the signal of one output pulse No. 41 A2, which is the same output as the output pulse signal A of the control circuit 6 shown in Figure 2, Regret pulse signal 4tB2, C2, l)2, C2, F
2 as well, the output pulse signals B1C, D, of control 1 path 6,
5. This pulse signal produces the same output as F! A2,
B2, C2, B2, F2, and F2 are each made independent of the base voltage by the pulse transformer lO.
Ru. The output pulse signals A2, B2 of this rectifier circuit 11,
C2, DI, F2, F2 are each connected to the switching circuit 3.
..., and the output pulse signals A2, B
2, C2, B2.12, signals A2, B2 and signals VB2, F2 and signal c2, which are opposite to each other in F2,
F2 is input to each of three sets of switching circuits 3.3 connected in series. These signals A2, B2
, C2, B2, F2, F2, the switching circuit 3... operates, and as a result, three-phase AC voltages R, 8, and T having a delay of 120[times] are output as shown in Figure 7. Ru. Therefore, by operating the variable resistor 6a of the control circuit 6, the frequencies of the three-phase AC voltages IL, S, and T output from the switching circuit 3 can be changed, and the AC motor 4
The rotation speed can be changed.
尚、上記実施例では構造について詳細に述べたか、請求
の範囲を越えない楓直に任意に変更してもかまわない。Although the structure has been described in detail in the above embodiments, it may be modified as desired without exceeding the scope of the claims.
かように本発明は電界効果トランジスタ３ｍ＝を用いた
スイッチング回路３・・・を一対直列接続して直流電圧
を印加し前記スイッチング回路３・・・の接続点より交
流電圧を敗り出す直流−交流変換装置に於いて、前記ス
イッチング回路３・・・の駆動用パルス７ｑＡ、、Ｂ、
Ｃ，Ｄ、Ｅ、Ｆを、入力パルス信号より周期の短いパル
ス信号畠、ｂを出力する発振回路７とこの発振（ロ）路
７の出力信号蟲、ｂ及び前記入力パルス信号の論理積を
とるアンド回路８とこのアンド回路８の出力に応動する
プッシュプル回路９とこのプッシュプル回路９の出力に
て交互の磁束を発生し二次出力を出すパルストランスＷ
とこのパルストランス１０の二次出力を全波蜂流して出
力する整流回路Ｕとでなる駆動回路Ｘを介して、前記ス
イッチング回路３・・・に入力したので、従来の如き独
立した電源装置を少く出来て消費電流の減少及び装置の
小型化を図ることが出来ると共に、パルストランス１０
には発振回路７の周波数の交互の磁束が発生するからパ
ルストランス１０の磁気飽和を少く行えさらにスイッチ
ング回路３・・・に゛電界効未トランジスタ５ａ・−・
を用いているからパルストランス１０の出方電流を少く
出来、これにより波形歪の少ない基準電圧の独立した出
力が取り出せる駆動回路Ｘを構成出来、故陣の少ない直
流−交流変換装置を提供出来る効呆があるAs described above, the present invention connects a pair of switching circuits 3 using field effect transistors 3m in series, applies a DC voltage, and outputs the AC voltage from the connection point of the switching circuits 3. In the AC converter, driving pulses 7qA, ,B, of the switching circuit 3...
Let C, D, E, and F be a pulse signal with a shorter period than the input pulse signal, the oscillation circuit 7 that outputs b, the output signal of this oscillation (b) path 7, and the logical product of b and the input pulse signal. An AND circuit 8, a push-pull circuit 9 that responds to the output of the AND circuit 8, and a pulse transformer W that generates alternate magnetic flux with the output of the push-pull circuit 9 and outputs a secondary output.
The secondary output of the pulse transformer 10 is inputted to the switching circuit 3 through the drive circuit X, which is made up of a rectifier circuit U that outputs a full-wave flow, so it is not necessary to use an independent power supply as in the past. It is possible to reduce current consumption and downsize the device by reducing the number of pulse transformers.
Since magnetic fluxes with alternating frequencies of the oscillation circuit 7 are generated, the magnetic saturation of the pulse transformer 10 can be reduced.Furthermore, the switching circuits 3...
Since the output current of the pulse transformer 10 can be reduced, it is possible to configure the drive circuit I'm dumbfounded
図面１１１１図乃至第７図は本発明の直流−交流変換装
置の一実施例を示し、１１１１図は回路ブロック図、第
２図乃至第７図は第１図の要部の動作特性図である。
３・・・スイッチング回路、３ｍ・・・電界効果トラン
ジスタ、Ｘ・・・駆動回路、７・・・発振１路％８・・
・アンド回路、９・・・プツシ１プル回路、屯・・・パ
ルストランス、１！・・・整旅回路。
第２図
第３図
ｂ■皿皿皿凹凹凹皿
第４図
ａ
ｂ
第５図
第６図
第７図Drawings 1111 to 7 show an embodiment of the DC-AC converter of the present invention, Fig. 1111 is a circuit block diagram, and Figs. 2 to 7 are operational characteristic diagrams of the main parts of Fig. 1. . 3...Switching circuit, 3m...Field effect transistor, X...Drive circuit, 7...Oscillation 1 path%8...
・AND circuit, 9...Push 1 pull circuit, Tun...Pulse transformer, 1! ...Adjustment circuit. Fig. 2 Fig. 3 b ■ Dish Dish Concave Concave Dish Fig. 4 a b Fig. 5 Fig. 6 Fig. 7
Claims (1)
一対直列接続して直流電圧を印加し前記スイッチング回
路の接続点より交流電圧を取り出す直流−交流置換装置
に於いて、前記スイッチング回路の駆動用パルス信号を
、入力パルス信号より周期の短いパルス信号を出力する
発振回路とこの発振回路の出力信号及び前記入力パルス
信号の論理積をとるアンド回路とこのアンド回路の出力
に応動するプツシ１プル回路とこのプツシニブル電路の
出力に２交互の磁束を発生し二次出力を出すパルストラ
ンスとこのパルストランスの二次出力を全波整流して出
力する螢流鴎路とでなる駆動回路を介して、前記スイッ
チング回路番ζ入力したことを特許とする直流−交流変
換装置。1) In a DC-AC replacement device in which a pair of switching circuits using field effect transistors are connected in series, a DC voltage is applied, and an AC voltage is extracted from a connection point of the switching circuit, a pulse signal for driving the switching circuit is used. , an oscillation circuit that outputs a pulse signal with a shorter period than the input pulse signal, an AND circuit that takes the logical product of the output signal of this oscillation circuit and the input pulse signal, a push-pull circuit that responds to the output of this AND circuit, and this The switching is performed through a drive circuit consisting of a pulse transformer that generates two alternating magnetic fluxes at the output of the push-inable electric circuit and outputs a secondary output, and a hot air filter that full-wave rectifies and outputs the secondary output of this pulse transformer. A DC-AC converter that has a patent for inputting the circuit number ζ.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56193170A JPS5895984A (en) | 1981-11-30 | 1981-11-30 | Dc/ac converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56193170A JPS5895984A (en) | 1981-11-30 | 1981-11-30 | Dc/ac converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5895984A true JPS5895984A (en) | 1983-06-07 |
Family
ID=16303452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56193170A Pending JPS5895984A (en) | 1981-11-30 | 1981-11-30 | Dc/ac converter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5895984A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60148397A (en) * | 1984-01-10 | 1985-08-05 | Suzuki Mekatoronikusu Kk | Motor drive circuit without commutation diode |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55127884A (en) * | 1979-03-24 | 1980-10-03 | Meidensha Electric Mfg Co Ltd | Inverter and method for driving inverter |
| JPS56150973A (en) * | 1980-04-22 | 1981-11-21 | Sanken Electric Co Ltd | Method of controlling inverter of pulse width modulating system |
-
1981
- 1981-11-30 JP JP56193170A patent/JPS5895984A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55127884A (en) * | 1979-03-24 | 1980-10-03 | Meidensha Electric Mfg Co Ltd | Inverter and method for driving inverter |
| JPS56150973A (en) * | 1980-04-22 | 1981-11-21 | Sanken Electric Co Ltd | Method of controlling inverter of pulse width modulating system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60148397A (en) * | 1984-01-10 | 1985-08-05 | Suzuki Mekatoronikusu Kk | Motor drive circuit without commutation diode |
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