JPH03116416U - - Google Patents
Info
- Publication number
- JPH03116416U JPH03116416U JP2664190U JP2664190U JPH03116416U JP H03116416 U JPH03116416 U JP H03116416U JP 2664190 U JP2664190 U JP 2664190U JP 2664190 U JP2664190 U JP 2664190U JP H03116416 U JPH03116416 U JP H03116416U
- Authority
- JP
- Japan
- Prior art keywords
- trigger signal
- zero
- output
- phase
- power source
- 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.)
- Granted
Links
- 238000001514 detection method Methods 0.000 claims description 4
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims description 2
- 238000009795 derivation Methods 0.000 claims 2
- 230000002401 inhibitory effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 230000002457 bidirectional effect Effects 0.000 description 1
Landscapes
- Control Of Voltage And Current In General (AREA)
- Control Of Electrical Variables (AREA)
Description
第１図は本考案の一実施例の電気的構成を示す
ブロツク図、第２図は第１図示の実施例の動作を
説明するための波形図、第３図は従来技術の電気
的構成を示すブロツク図、第４図は従来技術の動
作を説明するための波形図である。
１……交流電源、２……照明負荷、３……双方
向性三端子サイリスタ、４……トリガ回路、５…
…ゼロクロス検出手段、６，１１……プリセツト
カウンタ、７……クロツク信号発生手段、８，１
４……ＡＮＤゲート、９……入力手段、１０，１
２……プリセツト値設定手段、１３……反転回路
。
Fig. 1 is a block diagram showing the electrical configuration of an embodiment of the present invention, Fig. 2 is a waveform diagram for explaining the operation of the embodiment shown in Fig. 1, and Fig. 3 shows the electrical configuration of the prior art. The block diagram shown in FIG. 4 is a waveform diagram for explaining the operation of the prior art. DESCRIPTION OF SYMBOLS 1... AC power supply, 2... Lighting load, 3... Bidirectional three-terminal thyristor, 4... Trigger circuit, 5...
...Zero cross detection means, 6, 11... Preset counter, 7... Clock signal generation means, 8, 1
4...AND gate, 9...Input means, 10,1
2... Preset value setting means, 13... Inverting circuit.
Claims (1)
点を検出する手段と、 前記交流電源の周波数より高い周波数を有する
クロツク信号を発生する手段と、 前記ゼロクロス検出手段からの出力に応答して
前記クロツク信号を計数することによつて、予め
定められた位相角で負荷を位相制御するためのト
リガ信号の導出を開始し、次のゼロクロス検出手
段からの出力に応答して前記トリガ信号の導出を
終了するトリガ信号発生手段と、 前記トリガ信号が与えられ、前記トリガ信号が
導出されている期間、交流電源から負荷に電力が
供給されるように位相制御する手段と、 前記ゼロクロス検出手段からの出力が、予め定
める期間内に導出されないとき、前記位相制御手
段に与えられる前記トリガ信号を禁止する手段と
を含むことを特徴とする負荷の位相制御装置。[Claims for Utility Model Registration] An AC power source; means for detecting a zero-cross point where the output voltage of the AC power source becomes zero; means for generating a clock signal having a frequency higher than the frequency of the AC power source; By counting the clock signal in response to the output from the detection means, the derivation of a trigger signal for phase-controlling the load at a predetermined phase angle is started, and the output from the next zero-cross detection means is started. Trigger signal generation means that completes the derivation of the trigger signal in response to the trigger signal, and controls the phase so that power is supplied from the AC power supply to the load during the period when the trigger signal is applied and the trigger signal is being derived. A phase control device for a load, comprising: means for inhibiting the trigger signal given to the phase control means when the output from the zero-cross detection means is not derived within a predetermined period.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2664190U JPH0624891Y2 (en) | 1990-03-14 | 1990-03-14 | Load phase controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2664190U JPH0624891Y2 (en) | 1990-03-14 | 1990-03-14 | Load phase controller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03116416U true JPH03116416U (en) | 1991-12-03 |
| JPH0624891Y2 JPH0624891Y2 (en) | 1994-06-29 |
Family
ID=31529525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2664190U Expired - Lifetime JPH0624891Y2 (en) | 1990-03-14 | 1990-03-14 | Load phase controller |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0624891Y2 (en) |
-
1990
- 1990-03-14 JP JP2664190U patent/JPH0624891Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0624891Y2 (en) | 1994-06-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |