JPH0417698U - - Google Patents
Info
- Publication number
- JPH0417698U JPH0417698U JP5875190U JP5875190U JPH0417698U JP H0417698 U JPH0417698 U JP H0417698U JP 5875190 U JP5875190 U JP 5875190U JP 5875190 U JP5875190 U JP 5875190U JP H0417698 U JPH0417698 U JP H0417698U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- time constant
- reference voltage
- load
- constant 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
- 238000001514 detection method Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Drilling And Boring (AREA)
- Motor And Converter Starters (AREA)
Description
第１図はこの考案の一実施例を示す回路図、第
２図はこの考案の概略を示す構成図、第３図は第
１図の動作を説明するために示す図である。
１１……ソフトスタート装置、１２……電動工
具、ＳＷ……スイツチ、Ｍ……モータ、１９……
検出部、２８……制御部、Ｔ１……第１の時定数
回路、Ｔ２……第２の時定数回路、ＶＴ……基準
電圧発生回路、３８……ＰＵＴ、４６……出力部
、５８……トライアツク。
FIG. 1 is a circuit diagram showing an embodiment of this invention, FIG. 2 is a block diagram showing an outline of this invention, and FIG. 3 is a diagram shown to explain the operation of FIG. 1. 11...Soft start device, 12...Power tool, SW...Switch, M...Motor, 19...
Detection unit, 28...Control unit, T1...First time constant circuit, T2...Second time constant circuit, VT...Reference voltage generation circuit, 38...PUT, 46...Output unit, 58... ...Triatsk.
Claims (1)
検出回路と、 この検出回路の検出出力に応じて所定時間充電
される第１の時定数回路と、 この第１の時定数回路の時定数により小さく、
第１の時定数回路の充電電圧に応じて充電周期が
短縮される第２の時定数回路と、 電源の周波数に対応して基準電圧を生成する基
準電圧生成回路と、 前記第２の時定数回路の充電電圧と前記基準電
圧とに応じて導通タイミングが制御される制御回
路と、 この制御回路の導通タイミングに応じて、前記
負荷に供給する電流量を制御する制御整流素子と
、 を具備したことを特徴とするソフトスタート装置
。[Claims for Utility Model Registration] A detection circuit that is provided separately from the load and detects the start-up of the load; a first time constant circuit that is charged for a predetermined period of time according to the detection output of this detection circuit; Due to the time constant of the time constant circuit,
a second time constant circuit whose charging cycle is shortened in accordance with the charging voltage of the first time constant circuit; a reference voltage generation circuit which generates a reference voltage in accordance with the frequency of the power supply; and the second time constant circuit. A control circuit whose conduction timing is controlled according to the charging voltage of the circuit and the reference voltage; and a control rectifier element which controls the amount of current supplied to the load according to the conduction timing of the control circuit. A soft start device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5875190U JPH0417698U (en) | 1990-06-05 | 1990-06-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5875190U JPH0417698U (en) | 1990-06-05 | 1990-06-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0417698U true JPH0417698U (en) | 1992-02-13 |
Family
ID=31584649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5875190U Pending JPH0417698U (en) | 1990-06-05 | 1990-06-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0417698U (en) |
-
1990
- 1990-06-05 JP JP5875190U patent/JPH0417698U/ja active Pending
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