JPS6420087U - - Google Patents
Info
- Publication number
- JPS6420087U JPS6420087U JP1987112061U JP11206187U JPS6420087U JP S6420087 U JPS6420087 U JP S6420087U JP 1987112061 U JP1987112061 U JP 1987112061U JP 11206187 U JP11206187 U JP 11206187U JP S6420087 U JPS6420087 U JP S6420087U
- Authority
- JP
- Japan
- Prior art keywords
- contact
- conversion section
- inverter
- direct current
- alternating 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
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 5
- 239000003990 capacitor Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009499 grossing Methods 0.000 description 1
Landscapes
- Power Conversion In General (AREA)
Description
第１図は、この考案の一実施例によるインバー
タの不足電圧検出回路図、第２図は従来のインバ
ータの不足電圧検出回路図である。
１は順変換部、２は接点、３は抵抗、４は平滑
コンデンサ、５は逆変換部、６は不足電圧検出回
路、７は接点開閉回路、８は通常電源検出回路で
ある。なお、図中同一符号は同一、又は相当部分
を示す。
FIG. 1 is a diagram of an undervoltage detection circuit of an inverter according to an embodiment of the present invention, and FIG. 2 is a diagram of a conventional undervoltage detection circuit of an inverter. 1 is a forward conversion section, 2 is a contact, 3 is a resistor, 4 is a smoothing capacitor, 5 is an inverse conversion section, 6 is an undervoltage detection circuit, 7 is a contact opening/closing circuit, and 8 is a normal power supply detection circuit. Note that the same reference numerals in the figures indicate the same or equivalent parts.
Claims (1)
流を得る逆変換部を有し、直流を平滑するコンデ
ンサと順変換部の間に直列に接続された電気的に
開閉される接点と該接点と並列に接続された抵抗
を有し、電源電圧の低下を検出して該接点を開と
するよう構成されたインバータの制御装置におい
て、順変換部に入力される交流電圧の高低に応じ
て、該接点を開とする電圧レベルを変化させるこ
とを特徴としたインバータの不足電圧検出回路。 A contact that is electrically opened and closed and is connected in series between a capacitor that smoothes the DC and the forward conversion section, and the contact has a forward conversion section that converts alternating current to direct current and an inverse conversion section that obtains alternating current from the direct current. In an inverter control device that has a resistor connected in parallel with the inverter and is configured to detect a drop in power supply voltage and open the contact, depending on the level of the AC voltage input to the forward converter, An undervoltage detection circuit for an inverter, characterized in that the voltage level at which the contact is opened is changed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987112061U JPS6420087U (en) | 1987-07-22 | 1987-07-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987112061U JPS6420087U (en) | 1987-07-22 | 1987-07-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6420087U true JPS6420087U (en) | 1989-01-31 |
Family
ID=31350665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987112061U Pending JPS6420087U (en) | 1987-07-22 | 1987-07-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6420087U (en) |
-
1987
- 1987-07-22 JP JP1987112061U patent/JPS6420087U/ja active Pending