KR910004078Y1 - 2전원 출력 선택 회로 - Google Patents
2전원 출력 선택 회로 Download PDFInfo
- Publication number
- KR910004078Y1 KR910004078Y1 KR2019880013143U KR880013143U KR910004078Y1 KR 910004078 Y1 KR910004078 Y1 KR 910004078Y1 KR 2019880013143 U KR2019880013143 U KR 2019880013143U KR 880013143 U KR880013143 U KR 880013143U KR 910004078 Y1 KR910004078 Y1 KR 910004078Y1
- Authority
- KR
- South Korea
- Prior art keywords
- voltage
- output
- transistor
- power
- constant
- 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
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/10—Arrangements incorporating converting means for enabling loads to be operated at will from different kinds of power supplies, e.g. from AC or DC
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0045—Converters combining the concepts of switch-mode regulation and linear regulation, e.g. linear pre-regulator to switching converter, linear and switching converter in parallel, same converter or same transistor operating either in linear or switching mode
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Continuous-Control Power Sources That Use Transistors (AREA)
- Amplifiers (AREA)
Abstract
Description
Claims (2)
- 단일, 입력전원(Vin)이 인가되는 정전압 IC(10)에 있어서, 상기 정전압 IC(10)의 출력전압(VB)을 변화시키기 위해 정전압 IC(10)의 접지단자(G)에 연결된 제너다이오드(ZD)와 스위칭 트랜지스터(Q1)로 구성된 전압변화 수단과, 상기 정전압 IC(10)의 출력전압(VB)을 출력시키기위한 전압 조절용 트랜지스터(Q2)를 구성시킨 2전원 출력선택회로.
- 제 1 항에 있어서, 전압변환 수단은 조절전압(Vc)의 조절신호로 트랜지스터(Q1)의 구동을 제어하여 제너다이오드(ZD)에 연결된 트랜지스터(Q1)의 콜렉터전위(VA)를 변화시켜 정전압 IC(10)의 출력전압(VB)을 2전원으로 선택할수 있도록 구성된 2전원 출력선택회로.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019880013143U KR910004078Y1 (ko) | 1988-08-09 | 1988-08-09 | 2전원 출력 선택 회로 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019880013143U KR910004078Y1 (ko) | 1988-08-09 | 1988-08-09 | 2전원 출력 선택 회로 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR900005789U KR900005789U (ko) | 1990-03-09 |
KR910004078Y1 true KR910004078Y1 (ko) | 1991-06-13 |
Family
ID=19278343
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR2019880013143U Expired KR910004078Y1 (ko) | 1988-08-09 | 1988-08-09 | 2전원 출력 선택 회로 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR910004078Y1 (ko) |
-
1988
- 1988-08-09 KR KR2019880013143U patent/KR910004078Y1/ko not_active Expired
Also Published As
Publication number | Publication date |
---|---|
KR900005789U (ko) | 1990-03-09 |
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Legal Events
Date | Code | Title | Description |
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A201 | Request for examination | ||
UA0108 | Application for utility model registration |
Comment text: Application for Utility Model Registration Patent event code: UA01011R08D Patent event date: 19880809 |
|
UA0201 | Request for examination |
Patent event date: 19880809 Patent event code: UA02012R01D Comment text: Request for Examination of Application |
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UG1501 | Laying open of application | ||
E902 | Notification of reason for refusal | ||
UE0902 | Notice of grounds for rejection |
Comment text: Notification of reason for refusal Patent event code: UE09021S01D Patent event date: 19910123 |
|
UG1604 | Publication of application |
Patent event code: UG16041S01I Comment text: Decision on Publication of Application Patent event date: 19910515 |
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E701 | Decision to grant or registration of patent right | ||
UE0701 | Decision of registration |
Patent event date: 19910829 Comment text: Decision to Grant Registration Patent event code: UE07011S01D |
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REGI | Registration of establishment | ||
UR0701 | Registration of establishment |
Patent event date: 19911202 Patent event code: UR07011E01D Comment text: Registration of Establishment |
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UR1002 | Payment of registration fee |
Start annual number: 1 End annual number: 3 Payment date: 19911202 |
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UR1001 | Payment of annual fee |
Payment date: 19940530 Start annual number: 4 End annual number: 4 |
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UR1001 | Payment of annual fee |
Payment date: 19950529 Start annual number: 5 End annual number: 5 |
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UR1001 | Payment of annual fee |
Payment date: 19960523 Start annual number: 6 End annual number: 6 |
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UR1001 | Payment of annual fee |
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UR1001 | Payment of annual fee |
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UR1001 | Payment of annual fee |
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UR1001 | Payment of annual fee |
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UR1001 | Payment of annual fee |
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FPAY | Annual fee payment |
Payment date: 20020530 Year of fee payment: 12 |
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UR1001 | Payment of annual fee |
Payment date: 20020530 Start annual number: 12 End annual number: 12 |
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LAPS | Lapse due to unpaid annual fee | ||
UC1903 | Unpaid annual fee |