KR900009472Y1 - 전력공급기의 과전압 방지회로 - Google Patents
전력공급기의 과전압 방지회로 Download PDFInfo
- Publication number
- KR900009472Y1 KR900009472Y1 KR2019880001948U KR880001948U KR900009472Y1 KR 900009472 Y1 KR900009472 Y1 KR 900009472Y1 KR 2019880001948 U KR2019880001948 U KR 2019880001948U KR 880001948 U KR880001948 U KR 880001948U KR 900009472 Y1 KR900009472 Y1 KR 900009472Y1
- Authority
- KR
- South Korea
- Prior art keywords
- scr
- thyristor
- transistor
- line
- ground point
- 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.)
- Expired
Links
- 230000001681 protective effect Effects 0.000 title 1
- 230000010355 oscillation Effects 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/008—Intrinsically safe circuits
Landscapes
- Dc-Dc Converters (AREA)
Abstract
Description
Claims (1)
- 전력공급기의 복수개 직류 출력측과 발진용 트랜지스터(Q3)사이에 사이리스터(SCR)를 포함한 과전압방지회로를 구비시킨것에 있어서 상기 트랜지스터(Q3)의 베이스와 접지점사이에는 사이리스터(SCR)의 애노드와 캐소드를 각기 연결하고 이의 게이트는 복수개 직류직류 출력중 어느하나의 라인과 접지점사이에 직결시킨 제너다이오드(ZD) 및 저항(R2)과의 사이에 연결시킨 구성을 특징으로 하는 전력공급기의 과전압방지회로.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019880001948U KR900009472Y1 (ko) | 1988-02-15 | 1988-02-15 | 전력공급기의 과전압 방지회로 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019880001948U KR900009472Y1 (ko) | 1988-02-15 | 1988-02-15 | 전력공급기의 과전압 방지회로 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR890018259U KR890018259U (ko) | 1989-09-09 |
KR900009472Y1 true KR900009472Y1 (ko) | 1990-10-12 |
Family
ID=19272469
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR2019880001948U Expired KR900009472Y1 (ko) | 1988-02-15 | 1988-02-15 | 전력공급기의 과전압 방지회로 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR900009472Y1 (ko) |
-
1988
- 1988-02-15 KR KR2019880001948U patent/KR900009472Y1/ko not_active Expired
Also Published As
Publication number | Publication date |
---|---|
KR890018259U (ko) | 1989-09-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
UA0108 | Application for utility model registration |
Comment text: Application for Utility Model Registration Patent event code: UA01011R08D Patent event date: 19880215 |
|
UA0201 | Request for examination |
Patent event date: 19880215 Patent event code: UA02012R01D Comment text: Request for Examination of Application |
|
UG1501 | Laying open of application | ||
UG1604 | Publication of application |
Patent event code: UG16041S01I Comment text: Decision on Publication of Application Patent event date: 19900914 |
|
E701 | Decision to grant or registration of patent right | ||
UE0701 | Decision of registration |
Patent event date: 19901228 Comment text: Decision to Grant Registration Patent event code: UE07011S01D |
|
REGI | Registration of establishment | ||
UR0701 | Registration of establishment |
Patent event date: 19910131 Patent event code: UR07011E01D Comment text: Registration of Establishment |
|
UR1002 | Payment of registration fee |
Start annual number: 1 End annual number: 3 Payment date: 19910131 |
|
LAPS | Lapse due to unpaid annual fee | ||
UC1903 | Unpaid annual fee |
Termination date: 19941008 Termination category: Default of registration fee |