JPH0188442U - - Google Patents
Info
- Publication number
- JPH0188442U JPH0188442U JP18470787U JP18470787U JPH0188442U JP H0188442 U JPH0188442 U JP H0188442U JP 18470787 U JP18470787 U JP 18470787U JP 18470787 U JP18470787 U JP 18470787U JP H0188442 U JPH0188442 U JP H0188442U
- Authority
- JP
- Japan
- Prior art keywords
- contact
- control circuit
- time variation
- phase
- voltage
- 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
- 238000011084 recovery Methods 0.000 claims description 4
- 230000001629 suppression Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Relay Circuits (AREA)
Description
第１図は本考案の一実施例の回路図、第２図は
第１図の動作を説明する波系図である。
１……リレーコイル、２……リレー接点、５…
…制御回路、６……ゼロクロス信号、７……負荷
制御信号、８……負荷、９……交流電源、１０…
…メカニカルリレー、Ｄ１……ツエナーダイオー
ド、Ｑ１……トランジスタ、Ｒ１，Ｒ２……抵抗
、ｔ１……動作時間、ｔ２……復旧時間、ｔ３…
…動作時間バラツキ、ｔ４……復旧時間バラツキ
。
FIG. 1 is a circuit diagram of an embodiment of the present invention, and FIG. 2 is a wave diagram explaining the operation of FIG. 1. 1...Relay coil, 2...Relay contact, 5...
... Control circuit, 6 ... Zero cross signal, 7 ... Load control signal, 8 ... Load, 9 ... AC power supply, 10 ...
...Mechanical relay, D 1 ... Zener diode, Q 1 ... Transistor, R 1 , R 2 ... Resistor, t 1 ... Operating time, t 2 ... Recovery time, t 3 ...
...Operating time variation, t4 ...Recovery time variation.
Claims (1)
ル駆動用トランジスタにより駆動されるメカニカ
ルリレーの位相制御回路において、前記コイル駆
動用トランジスタのエミツタとコレクタとの間に
リレー駆動定格電圧の１．５倍以上のツエナー電
圧をもつツエナーダイオードを並列接続した復旧
時間バラツキ抑制回路と、前記交流電源の負荷開
閉位相をゼロクロス点に対し接点閉成時は、この
接点閉成時点を動作時間バラツキ幅の中心値に、
接点開離時は、この接点開離時点を復旧時間バラ
ツキ幅の最大値に位相制御する制御回路とを備え
ることを特徴とするメカニカルリレーの位相制御
回路。 In a phase control circuit of a mechanical relay in which the contacts open and close the load of an AC power supply and the coil is driven by a coil drive transistor, a voltage 1.5 times the relay drive rated voltage is applied between the emitter and collector of the coil drive transistor. A recovery time variation suppression circuit in which Zener diodes with a Zener voltage of at least 100% is connected in parallel, and when a contact is closed with respect to the zero-crossing point of the load switching phase of the AC power supply, this contact closing point is set as the center value of the operating time variation width. To,
1. A phase control circuit for a mechanical relay, comprising: a control circuit that, when a contact opens, controls the phase of this contact opening point to a maximum value of a recovery time variation width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18470787U JPH0188442U (en) | 1987-12-02 | 1987-12-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18470787U JPH0188442U (en) | 1987-12-02 | 1987-12-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0188442U true JPH0188442U (en) | 1989-06-12 |
Family
ID=31476048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18470787U Pending JPH0188442U (en) | 1987-12-02 | 1987-12-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0188442U (en) |
-
1987
- 1987-12-02 JP JP18470787U patent/JPH0188442U/ja active Pending
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