JPH0350996U - - Google Patents
Info
- Publication number
- JPH0350996U JPH0350996U JP11183889U JP11183889U JPH0350996U JP H0350996 U JPH0350996 U JP H0350996U JP 11183889 U JP11183889 U JP 11183889U JP 11183889 U JP11183889 U JP 11183889U JP H0350996 U JPH0350996 U JP H0350996U
- Authority
- JP
- Japan
- Prior art keywords
- frequency setting
- inverter
- variable resistor
- frequency
- control 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
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Control Of Ac Motors 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
制御回路を示す周波数設定回路を示す図、第２図
〜第４図は従来のインバータ制御回路を示し、第
２図は周波数設定回路を示す図、第３図は周波数
設定回路に挿入されたバツフアアンプ部を示す図
、第４図は周波数設定用可変抵抗器の誤配線例を
示す図である。
図において、１……制御電源、２……周波数設
定用可変抵抗器、３……Ａ／Ｄ変換器、４……マ
イコン、１１……チヨークコイル、５……バツフ
アアンプである。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 showing a frequency setting circuit showing an inverter control circuit according to an embodiment of the invention, FIGS. 2 to 4 are diagrams showing a conventional inverter control circuit, and FIG. 2 is a diagram showing a frequency setting circuit. FIG. 3 is a diagram showing a buffer amplifier section inserted into the frequency setting circuit, and FIG. 4 is a diagram showing an example of incorrect wiring of a variable resistor for frequency setting. In the figure, 1...control power supply, 2...variable resistor for frequency setting, 3...A/D converter, 4...microcomputer, 11...chiyoke coil, 5...buffer amplifier. In addition, in the figure, the same reference numerals are the same,
or a corresponding portion.
Claims (1)
設定回路において、周波数設定用制御電源と周波
数設定用可変抵抗器間にチヨークコイルを挿入し
たことを特徴とするインバータ制御回路。 An inverter control circuit that provides a desired output frequency to an inverter, characterized in that a chiyoke coil is inserted between a frequency setting control power source and a frequency setting variable resistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11183889U JPH0350996U (en) | 1989-09-25 | 1989-09-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11183889U JPH0350996U (en) | 1989-09-25 | 1989-09-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0350996U true JPH0350996U (en) | 1991-05-17 |
Family
ID=31660303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11183889U Pending JPH0350996U (en) | 1989-09-25 | 1989-09-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0350996U (en) |
-
1989
- 1989-09-25 JP JP11183889U patent/JPH0350996U/ja active Pending