JPS63101438U - - Google Patents
Info
- Publication number
- JPS63101438U JPS63101438U JP19580186U JP19580186U JPS63101438U JP S63101438 U JPS63101438 U JP S63101438U JP 19580186 U JP19580186 U JP 19580186U JP 19580186 U JP19580186 U JP 19580186U JP S63101438 U JPS63101438 U JP S63101438U
- Authority
- JP
- Japan
- Prior art keywords
- relay
- switch
- backflow prevention
- activated
- turned
- 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
- 230000005284 excitation Effects 0.000 claims description 4
- 230000002265 prevention Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 1
Landscapes
- Keying Circuit Devices (AREA)
- Relay Circuits (AREA)
Description
第１図はこの考案の一実施例によるリレー駆動
回路を示す回路図、第２図は従来のリレー駆動回
路を示す回路図、第３図はコンデンサの充電電圧
の時間に対する変化図、第４図は逆流防止用ダイ
オードのアノード電圧の時間に対する変化図であ
る。
１は励磁起動用電源、２は励磁保持用電源、４
は制御回路（ＣＰＵ）、Ｕ１，Ｕ２はスイツチ（
フオトカプラ）、Ｄは逆流防止用ダイオード、Ｒ
ｙはリレー。
Fig. 1 is a circuit diagram showing a relay drive circuit according to an embodiment of this invention, Fig. 2 is a circuit diagram showing a conventional relay drive circuit, Fig. 3 is a diagram showing changes in capacitor charging voltage over time, Fig. 4 is a diagram of changes in anode voltage of a backflow prevention diode with respect to time. 1 is a power supply for excitation starting, 2 is a power supply for excitation holding, 4
is the control circuit (CPU), U1 and U2 are the switches (
photocoupler), D is a backflow prevention diode, R
y is a relay.
Claims (1)
接続されたリレーと、前記リレーと直列接続され
た第１のスイツチと、前記逆流防止ダイオードの
前記リレー接続側と励磁起動用電源との間に接続
した第２のスイツチと、前記リレーの起動時には
前記第１、第２のスイツチを同時にＯＮさせ起動
後には該第１のスイツチをＯＮさせたまま該第２
のスイツチを定期的に、かつ、一時的にＯＮさせ
る制御回路とを備えたリレー駆動回路。 A relay connected to an excitation holding power source via a backflow prevention diode, a first switch connected in series with the relay, and a first switch connected between the relay connection side of the backflow prevention diode and the excitation starting power source. When the second switch and the relay are activated, the first and second switches are turned on at the same time, and after the relay is activated, the first switch is left on and the second switch is turned on.
A relay drive circuit comprising a control circuit that periodically and temporarily turns on the switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19580186U JPS63101438U (en) | 1986-12-22 | 1986-12-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19580186U JPS63101438U (en) | 1986-12-22 | 1986-12-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63101438U true JPS63101438U (en) | 1988-07-01 |
Family
ID=31154025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19580186U Pending JPS63101438U (en) | 1986-12-22 | 1986-12-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63101438U (en) |
-
1986
- 1986-12-22 JP JP19580186U patent/JPS63101438U/ja active Pending