JPS61153500U - - Google Patents
Info
- Publication number
- JPS61153500U JPS61153500U JP1985035790U JP3579085U JPS61153500U JP S61153500 U JPS61153500 U JP S61153500U JP 1985035790 U JP1985035790 U JP 1985035790U JP 3579085 U JP3579085 U JP 3579085U JP S61153500 U JPS61153500 U JP S61153500U
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- detection section
- supply voltage
- energization amount
- electric motor
- 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
- 238000001514 detection method Methods 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000012850 discrimination method Methods 0.000 description 1
Landscapes
- Control Of Ac Motors In General (AREA)
Description
第１図は本考案の一実施例を示す周波数判別回
路図、第２図は第１図の周波数判別方法の説明図
、第３図は本考案の一実施例を位相制御に適用し
た場合の位相制御回路、第４図ａ，ｂは第３図の
回路各部の動作波形図、第５図は従来の位相制御
回路、第６図ａ，ｂは第５図の回路各部の動作波
形図である。
１……電源、２……電動機、３……サイリスタ
（電力制御素子）、８……ゲート回路、１６……
電源電圧検出部、２１……通電量検出部、２６…
…周波数判別部。
Fig. 1 is a frequency discrimination circuit diagram showing an embodiment of the present invention, Fig. 2 is an explanatory diagram of the frequency discrimination method shown in Fig. 1, and Fig. 3 is a diagram showing an example of the present invention applied to phase control. Phase control circuit, Figures 4a and b are operating waveform diagrams of each part of the circuit in Figure 3, Figure 5 is a conventional phase control circuit, and Figures 6a and b are operating waveform diagrams of each part of the circuit in Figure 5. be. 1... Power supply, 2... Electric motor, 3... Thyristor (power control element), 8... Gate circuit, 16...
Power supply voltage detection section, 21... Energization amount detection section, 26...
...Frequency discrimination section.
Claims (1)
と、この電力制御素子の駆動信号を発生するゲー
ト回路を有し、かつ電源電圧の平均値を検出する
電源電圧検出部と、前記電動機の回転数に比例す
る通電量を検出する通電量検出部と、前記電源電
圧検出部と通電量検出部の出力を比較することに
より電源周波数を判別する周波数判別部とにより
構成した周波数判別回路。 A power supply voltage detection section that includes an electric motor, a power control element that drives the electric motor, a gate circuit that generates a drive signal for the power control element, and that detects an average value of the power supply voltage; A frequency discrimination circuit comprising: a energization amount detection section that detects a proportional energization amount; and a frequency discrimination section that discriminates a power supply frequency by comparing the outputs of the power supply voltage detection section and the energization amount detection section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985035790U JPS61153500U (en) | 1985-03-13 | 1985-03-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985035790U JPS61153500U (en) | 1985-03-13 | 1985-03-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61153500U true JPS61153500U (en) | 1986-09-22 |
Family
ID=30540391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985035790U Pending JPS61153500U (en) | 1985-03-13 | 1985-03-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61153500U (en) |
-
1985
- 1985-03-13 JP JP1985035790U patent/JPS61153500U/ja active Pending
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