JPS63179794U - - Google Patents
Info
- Publication number
- JPS63179794U JPS63179794U JP7118487U JP7118487U JPS63179794U JP S63179794 U JPS63179794 U JP S63179794U JP 7118487 U JP7118487 U JP 7118487U JP 7118487 U JP7118487 U JP 7118487U JP S63179794 U JPS63179794 U JP S63179794U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- power supply
- drive
- control circuit
- base current
- 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
- 238000012544 monitoring process Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Power Conversion In General (AREA)
Description
第１図は本考案のインバータ制御回路の特徴的
構成要素である電源電圧監視回路の構成及び接続
状態を示す回路図、第２図は本考案のインバータ
制御回路並びにインバータ装置の概略構成を示す
ブロツク図、第３図は従来のインバータ装置の全
体構成図、第４図は従来のインバータ制御回路概
略構成を示すブロツク図、第５図は従来のインバ
ータ制御回路の構成要素であるベースドライブ回
路の構成及びその接続関係を示す回路図である。
２４……周波数設定値、２２……直流電源回路
、１６……インバータ、５０……電源電圧監視回
路、２６……制御回路、２８……ベースドライブ
回路、５２，５４……比較器、５６……比較回路
、５８……トランジスタ、６０……フオトカプラ
、７２……ＤＣ−ＤＣコンバータ。
Figure 1 is a circuit diagram showing the configuration and connection state of a power supply voltage monitoring circuit, which is a characteristic component of the inverter control circuit of the present invention, and Figure 2 is a block diagram showing the schematic configuration of the inverter control circuit and inverter device of the present invention. 3 is an overall configuration diagram of a conventional inverter device, FIG. 4 is a block diagram showing a schematic configuration of a conventional inverter control circuit, and FIG. 5 is a configuration of a base drive circuit that is a component of a conventional inverter control circuit. FIG. 3 is a circuit diagram showing the connection relationship thereof. 24... Frequency setting value, 22... DC power supply circuit, 16... Inverter, 50... Power supply voltage monitoring circuit, 26... Control circuit, 28... Base drive circuit, 52, 54... Comparator, 56... ... Comparison circuit, 58 ... Transistor, 60 ... Photocoupler, 72 ... DC-DC converter.
Claims (1)
スタ駆動用ベース電流を供給する直流電源回路と
、 インバータの交流出力周波数の設定を行う周波
数設定器と、 この周波数設定器からの信号に基づき前記トラ
ンジスタの駆動を制御するための駆動パルスを発
生する制御回路と、 この制御回路からの駆動パルスに基づいて前記
直流電源回路によるベース電流の供給・停止調整
を行いトランジスタをドライブするベースドライ
ブ回路と、を含むインバータ制御回路において、 前記直流電源回路と制御回路との間には、 直流電源回路からのベース電流供給電圧と所定
の基準電圧との高低を比較する比較回路と、この
比較回路からの比較結果に応じてオンオフ作動さ
れるスイツチング素子と、このスイツチング素子
のスイツチング動作に基づきベース電流供給電圧
が所定の基準電圧よりも低下したことを検知した
時に、前記制御回路に駆動パルスの発信を停止さ
せるための信号を供給する停止信号発生手段と、
を有する電源電圧監視回路が設けられ、 前記駆動パルスの発信停止によつてトランジス
タへのベース電流の供給が停止されることを特徴
とするインバータ制御回路。[Claims for Utility Model Registration] A DC power supply circuit that supplies base current for driving transistors that are switching elements of an inverter, a frequency setter that sets the AC output frequency of the inverter, and a frequency setter that sets the AC output frequency of the inverter; a control circuit that generates a drive pulse for controlling the drive of the transistor; and a base drive circuit that adjusts supply/stop of base current by the DC power supply circuit to drive the transistor based on the drive pulse from the control circuit. , between the DC power supply circuit and the control circuit, a comparison circuit that compares the base current supply voltage from the DC power supply circuit with a predetermined reference voltage; A switching element is turned on and off according to the comparison result, and when it is detected that the base current supply voltage has fallen below a predetermined reference voltage based on the switching operation of this switching element, the transmission of drive pulses to the control circuit is stopped. stop signal generating means for supplying a signal to cause the stop signal to stop;
An inverter control circuit comprising: a power supply voltage monitoring circuit having: a power supply voltage monitoring circuit, wherein supply of a base current to a transistor is stopped by stopping transmission of the drive pulse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7118487U JPS63179794U (en) | 1987-05-12 | 1987-05-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7118487U JPS63179794U (en) | 1987-05-12 | 1987-05-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63179794U true JPS63179794U (en) | 1988-11-21 |
Family
ID=30913508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7118487U Pending JPS63179794U (en) | 1987-05-12 | 1987-05-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63179794U (en) |
-
1987
- 1987-05-12 JP JP7118487U patent/JPS63179794U/ja active Pending
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