JPS6028779A - Inverter circuit - Google Patents
Inverter circuitInfo
- Publication number
- JPS6028779A JPS6028779A JP58135830A JP13583083A JPS6028779A JP S6028779 A JPS6028779 A JP S6028779A JP 58135830 A JP58135830 A JP 58135830A JP 13583083 A JP13583083 A JP 13583083A JP S6028779 A JPS6028779 A JP S6028779A
- Authority
- JP
- Japan
- Prior art keywords
- power source
- drive circuit
- channel
- inverter circuit
- circuit
- 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
Abstract
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明はモードル制御用インバータ回路に係り、回路の
小型化に好適なインバータ回路に関する発明である。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to an inverter circuit for controlling a mode, and more particularly, to an inverter circuit suitable for miniaturization of the circuit.
モードルの速度を制御するためのインバータ回路におい
て、スイッチング素子としては従来サイリスタやＧＴＯ
、バイポーラトランジスタが用いられてきた。第１図に
バイポーラトランジスタを用いた例を示す。バイポーラ
トランジスタは言うまでもなく、ベース電流によって、
コレクタ電流を制御する素子であり、第１図においてベ
ースからエミッタに電流が流れるように駆動を行う必要
がある。ところで誘導電動機の速度制御を行うインバー
タにおいて、第１図でのＱｌ、Ｑ２．Ｑ３のトランジス
タのエミッタ電位は不安定であり、それぞれの駆動回路
用の電源は、各エミッタ電位を基準として、各１つずつ
必要となる。したがって第１図のインバータ回路におい
てＱｌ、Ｑ２．Ｑ３に対する駆動電源が３つ、それにＱ
４．Ｑｓ、Ｑｓに対する電源１つの計４つの駆動回路用
電源が必要となる。In the inverter circuit for controlling the speed of the modele, conventional switching elements such as thyristors and GTOs are used.
, bipolar transistors have been used. FIG. 1 shows an example using bipolar transistors. Needless to say, bipolar transistors, due to their base current,
This is an element that controls the collector current, and must be driven so that the current flows from the base to the emitter as shown in FIG. By the way, in an inverter that controls the speed of an induction motor, Ql, Q2 . The emitter potential of the transistor Q3 is unstable, and one power supply for each drive circuit is required with each emitter potential as a reference. Therefore, in the inverter circuit of FIG. 1, Ql, Q2. There are three drive power supplies for Q3, and
4. A total of four drive circuit power supplies, one for Qs and one for Qs, are required.
スイッチング素子が、Ｇ′Ｉ′０やサイリスタとなって
も同様のことが言える。The same thing can be said even if the switching element is G'I'0 or a thyristor.
本発明は上記従来技術の欠点をなくし、小型で使用電源
数を低減したインバータ回路を提供するにある。The present invention eliminates the drawbacks of the prior art described above, and provides an inverter circuit that is compact and uses a reduced number of power supplies.
インバータ回路に用いるスイッチング素子として、Ｐチ
ャネル、ＮチャネルのＭＯＳ −ＦＥＴを用いることＫ
より、上記目的を達成した。P-channel and N-channel MOS-FETs can be used as switching elements for inverter circuits.
Therefore, the above objectives were achieved.
以下、本発明の一実施例を図を用いて説明する。第２図
に本発明によるインバータ回路全体の構成を示す。Ｐチ
ャネルＭＯ８−Ｆ肝を主電源のプラス側に、またＮチャ
ネルＭＯ８−Ｆ’ＢＴをスイッチング素子として用いモ
ードルへの出力を得る。An embodiment of the present invention will be described below with reference to the drawings. FIG. 2 shows the overall configuration of an inverter circuit according to the present invention. The P channel MO8-F liver is connected to the positive side of the main power supply, and the N channel MO8-F'BT is used as a switching element to obtain an output to the moder.
電源としては主電源のほかに駆動回路を源として主電源
のプラス側を基準とした負電圧を発生する電源を、また
もう一つの駆動回路用電源としてマイナス側を基準とし
た正電圧を発生する電源を用いる。In addition to the main power supply, the power supply uses the drive circuit as a source to generate a negative voltage based on the positive side of the main power supply, and another power supply for the drive circuit that generates a positive voltage based on the negative side. Uses power supply.
第３図ＫＰチャネルＭｉｓ Ｆ’ＥＴに対する駆動回路
の例を示す。制御信号の入力はフォトカプラで行い制御
回路と駆動回路との電気的に独立としている。■）Ｓ−
ＦＥＴのゲート入力容量が大きいため、コンプリメンタ
リ−なトランジスタを用い高速駆動が可能なような構成
となっている。FIG. 3 shows an example of a drive circuit for the KP channel Mis F'ET. Control signals are input using a photocoupler, so that the control circuit and drive circuit are electrically independent. ■)S-
Since the gate input capacitance of the FET is large, the configuration is such that complementary transistors are used and high-speed driving is possible.
ＭＯＳ −Ｆ’ＥＴは電圧制御形でありバイポーラトラ
ンジスタを用いた回路に比べ、大幅な部品数の低減とな
る。MOS-F'ET is a voltage controlled type, and the number of components can be significantly reduced compared to a circuit using bipolar transistors.
第３図において、ホトカプラの入力に図に示すととく２
値の制御信号が入力された場合、Ｈｉ ｇｈのレベルで
フォトカプラのトランジスタがＯＮとなり、コンプリメ
ンタリのトランジスタのｐｎｐ側がＯＮとなる。このと
きＦＥＴはＯＦＦ状態となる。In Figure 3, the input of the photocoupler is shown as 2.
When a value control signal is input, the photocoupler transistor is turned on at a high level, and the pnp side of the complementary transistor is turned on. At this time, the FET is in the OFF state.
またＬｏｗの入力があると、フォトカプラのトランジス
タはＯＦＦとなり、ＭＯＳ ＦＥＴはＯＮ状態となる。Further, when there is a Low input, the photocoupler transistor is turned off and the MOS FET is turned on.
本発明によれば、従来４つ必要であった駆動回路用電源
を２つに減らすことができる。またインバータのスイッ
チング素子がＭＯＳ ＦＥＴであることから、スイッチ
ング制御が電圧駆動形であり駆動回路も簡単になる。According to the present invention, the number of power supplies for the drive circuit, which was conventionally required to be four, can be reduced to two. Furthermore, since the switching elements of the inverter are MOS FETs, switching control is voltage-driven, and the drive circuit is also simple.
これらのことは従来のバイポーラトランジスタを用いた
場合などに比べ大幅に回路素子の低減することができ、
製造原価の低減、信頼性の向上が計れる。These features can significantly reduce the number of circuit elements compared to when using conventional bipolar transistors.
It can reduce manufacturing costs and improve reliability.
また高速スイッチングが可能であり従来問題とされてき
た騒音に対しても大幅な低減が可能となる。Furthermore, high-speed switching is possible, and noise, which has been a problem in the past, can be significantly reduced.
駆動電源も主電源のそれぞれ一方を基準′α位と構成さ
れるため、安定性のよいノイズ等の妨害を受けにくいも
のとすることが容易である。Since each of the driving power sources is constructed with one of the main power sources at the reference position 'α, it is easy to make the drive power source stable and resistant to disturbances such as noise.
第１図は従来のインバータの構成図、第２図は本発明の
一実施例のインバータの構成図、第３図はＰチャネルＭ
Ｏ８ＦＥＴに対する駆動回路図、第４図はＮチャネルＭ
Ｏ８ＦＢＴに対する駆動回路図である。
Ｑ１〜６・・・トランジスタ
７１ 図
オ ２ 図
７３ 図
才４図
鳥匠動回路
３７７−Fig. 1 is a block diagram of a conventional inverter, Fig. 2 is a block diagram of an inverter according to an embodiment of the present invention, and Fig. 3 is a P-channel M
Drive circuit diagram for O8FET, Figure 4 is N-channel M
It is a drive circuit diagram for O8FBT. Q1-6...Transistor 71 Figure O 2 Figure 73 Figure 4 Figure 4 Birdsho operation circuit 377-
Claims (1)
素子を制御信号に従って駆動するための駆動回路よりな
る誘導電動機の速度を制御するためのインバータ回路に
おいて、スイッチング素子としてＰチャネルＭＯ８ＰＥ
７１’およびＮチャネルＭＯ８Ｆ’ＥＴを用い、駆動回
路が必要とする電源を２つとしたことを特徴とするイン
バータ回路。1. In an inverter circuit for controlling the speed of an induction motor consisting of a plurality of DC power supplies, switching elements, and a drive circuit for driving the switching elements according to control signals, a P-channel MO8PE is used as a switching element.
71' and an N-channel MO8F'ET, and the drive circuit requires two power supplies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58135830A JPS6028779A (en) | 1983-07-27 | 1983-07-27 | Inverter circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58135830A JPS6028779A (en) | 1983-07-27 | 1983-07-27 | Inverter circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6028779A true JPS6028779A (en) | 1985-02-13 |
Family
ID=15160775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58135830A Pending JPS6028779A (en) | 1983-07-27 | 1983-07-27 | Inverter circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6028779A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100437029B1 (en) * | 2001-11-26 | 2004-06-23 | 엘지전자 주식회사 | Induction Motor Operating System |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57126280A (en) * | 1981-01-26 | 1982-08-05 | Hitachi Ltd | Transistor power converter |
-
1983
- 1983-07-27 JP JP58135830A patent/JPS6028779A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57126280A (en) * | 1981-01-26 | 1982-08-05 | Hitachi Ltd | Transistor power converter |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100437029B1 (en) * | 2001-11-26 | 2004-06-23 | 엘지전자 주식회사 | Induction Motor Operating System |
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