JPS583800U - Frequency setting circuit for inverter equipment - Google Patents
Frequency setting circuit for inverter equipmentInfo
- Publication number
- JPS583800U JPS583800U JP9813981U JP9813981U JPS583800U JP S583800 U JPS583800 U JP S583800U JP 9813981 U JP9813981 U JP 9813981U JP 9813981 U JP9813981 U JP 9813981U JP S583800 U JPS583800 U JP S583800U
- Authority
- JP
- Japan
- Prior art keywords
- frequency
- frequency setting
- output
- setting
- value
- 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
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図はインバータの設定周波数態様を示す図、−第２
図は設定周波数のステップ変化によるオーバシュートを
説明するための図、第３図は本考案の、−実施１例を示
す要部回路図である。
１・・・水晶発振器、２・・・分周器、３・・・位相比
較器、４・・・分周器、５・・・電圧制御発振器、６・
・・データバス、９」・・ディジタル−アナログ変換器
、１０・・・電圧制御発振器、１２・・・位相比較器、
１３・・・コンパレータ、１４・・・アナログスイッチ
。Figure 1 is a diagram showing the setting frequency mode of the inverter, - Figure 2
The figure is a diagram for explaining overshoot due to a step change in the set frequency, and FIG. 3 is a circuit diagram of a main part showing an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Crystal oscillator, 2... Frequency divider, 3... Phase comparator, 4... Frequency divider, 5... Voltage controlled oscillator, 6...
...Data bus, 9"...Digital-to-analog converter, 10...Voltage controlled oscillator, 12...Phase comparator,
13... Comparator, 14... Analog switch.
Claims (1)
とを位相比較して！圧制御発振器から基準周波数信号に
周波数が比例した第１の周波数設定値を得るＰＬＬ回路
による第１の周波数設定回路と、周波数設定データが与
えられるディジタル−アナログ変換器側からアナログ信
号力≧与えられる電圧制御発振器の出力から第２の周波
数設定値を取出しこの設定値と上記第１の設定値とを比
較入力とする位相比較器の出力を上船ディージタルーア
ナログ変換器の出力への突合せ信号にできるようにした
第２９周波数設定回路と、インバータ装置の定速運転に
は上記第１の周波数設定値を設定出力として取出し、可
変速運転には上記第２の周波数設定値を設定出力として
取出し定速運転と可変速運転の切換えに画周波数設定値
間に同期をとりながら設定値切換制御する制御手段とを
備えたこ −とを特徴とするインバータ装置の周波数
設定回路。 −Compare the phase of the reference frequency signal and the output signal of the frequency divider where the division ratio is set! A first frequency setting circuit using a PLL circuit that obtains a first frequency setting value whose frequency is proportional to the reference frequency signal from a pressure controlled oscillator, and an analog signal power ≧ is given from a digital-to-analog converter side to which frequency setting data is given. A second frequency set value is obtained from the output of the voltage controlled oscillator, and this set value and the first set value are used as comparison inputs.The output of the phase comparator is matched to the output of the onboard digital-to-analog converter. A 29th frequency setting circuit that allows the inverter to operate at a constant speed takes out the first frequency setting value as a setting output, and takes out the second frequency setting value as a setting output for variable speed operation. 1. A frequency setting circuit for an inverter device, comprising control means for controlling setting value switching while synchronizing frequency setting values for switching between constant speed operation and variable speed operation. −
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9813981U JPS583800U (en) | 1981-06-30 | 1981-06-30 | Frequency setting circuit for inverter equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9813981U JPS583800U (en) | 1981-06-30 | 1981-06-30 | Frequency setting circuit for inverter equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS583800U true JPS583800U (en) | 1983-01-11 |
Family
ID=29892908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9813981U Pending JPS583800U (en) | 1981-06-30 | 1981-06-30 | Frequency setting circuit for inverter equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS583800U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6048408U (en) * | 1983-09-12 | 1985-04-05 | 三菱化成ポリテック株式会社 | Molding machine sheet feeding device |
| JPS62250995A (en) * | 1986-04-25 | 1987-10-31 | Taiho Kagaku Kk | Production of contact filter medium for purifying tank |
| JPS6330131U (en) * | 1986-08-12 | 1988-02-27 |
-
1981
- 1981-06-30 JP JP9813981U patent/JPS583800U/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6048408U (en) * | 1983-09-12 | 1985-04-05 | 三菱化成ポリテック株式会社 | Molding machine sheet feeding device |
| JPS6343068Y2 (en) * | 1983-09-12 | 1988-11-10 | ||
| JPS62250995A (en) * | 1986-04-25 | 1987-10-31 | Taiho Kagaku Kk | Production of contact filter medium for purifying tank |
| JPS6330131U (en) * | 1986-08-12 | 1988-02-27 |
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