KR950001242Y1 - 무선전화기의 배터리 전압감지회로 - Google Patents
무선전화기의 배터리 전압감지회로 Download PDFInfo
- Publication number
- KR950001242Y1 KR950001242Y1 KR2019900001507U KR900001507U KR950001242Y1 KR 950001242 Y1 KR950001242 Y1 KR 950001242Y1 KR 2019900001507 U KR2019900001507 U KR 2019900001507U KR 900001507 U KR900001507 U KR 900001507U KR 950001242 Y1 KR950001242 Y1 KR 950001242Y1
- Authority
- KR
- South Korea
- Prior art keywords
- resistance
- sensing circuit
- thermistor
- battery voltage
- transistor
- 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 - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M19/00—Current supply arrangements for telephone systems
- H04M19/08—Current supply arrangements for telephone systems with current supply sources at the substations
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/725—Cordless telephones
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M2201/00—Electronic components, circuits, software, systems or apparatus used in telephone systems
- H04M2201/02—Diodes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M2201/00—Electronic components, circuits, software, systems or apparatus used in telephone systems
- H04M2201/04—Transistors
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Description
Claims (1)
- 트랜지스터(Q1)(Q2)와 발광다이오드(LED) 및 저항(R1)(R5)(R6)로 이루어진 통상의 배터리전압 감지회로에 있어서, 저항(R2)(R3)과 저항(R4) 및 서미스터(1)를 각각 직렬연결하되 저항(R2)(R3) 사이와 저항(R4) 및 서미스터(1) 사이를 상호접속케 하며 또한 저항(R2)(R4)을 트랜지스터(Q1)베이스에 병렬접속한 저항오차감소회로(2)를 부가하여서 된 것을 특징으로 하는 무선전화기의 배터리 전압감지회로.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019900001507U KR950001242Y1 (ko) | 1990-02-12 | 1990-02-12 | 무선전화기의 배터리 전압감지회로 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019900001507U KR950001242Y1 (ko) | 1990-02-12 | 1990-02-12 | 무선전화기의 배터리 전압감지회로 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR910016023U KR910016023U (ko) | 1991-09-25 |
KR950001242Y1 true KR950001242Y1 (ko) | 1995-02-24 |
Family
ID=19295898
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR2019900001507U Expired - Fee Related KR950001242Y1 (ko) | 1990-02-12 | 1990-02-12 | 무선전화기의 배터리 전압감지회로 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR950001242Y1 (ko) |
-
1990
- 1990-02-12 KR KR2019900001507U patent/KR950001242Y1/ko not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
KR910016023U (ko) | 1991-09-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
UA0108 | Application for utility model registration |
Comment text: Application for Utility Model Registration Patent event code: UA01011R08D Patent event date: 19900212 |
|
UG1501 | Laying open of application | ||
A201 | Request for examination | ||
UA0201 | Request for examination |
Patent event date: 19921204 Patent event code: UA02012R01D Comment text: Request for Examination of Application Patent event date: 19900212 Patent event code: UA02011R01I Comment text: Application for Utility Model Registration |
|
UG1604 | Publication of application |
Patent event code: UG16041S01I Comment text: Decision on Publication of Application Patent event date: 19950127 |
|
E701 | Decision to grant or registration of patent right | ||
UE0701 | Decision of registration |
Patent event date: 19950428 Comment text: Decision to Grant Registration Patent event code: UE07011S01D |
|
REGI | Registration of establishment | ||
UR0701 | Registration of establishment |
Patent event date: 19950725 Patent event code: UR07011E01D Comment text: Registration of Establishment |
|
UR1002 | Payment of registration fee |
Start annual number: 1 End annual number: 3 Payment date: 19950725 |
|
UR1001 | Payment of annual fee |
Payment date: 19971231 Start annual number: 4 End annual number: 4 |
|
FPAY | Annual fee payment |
Payment date: 19990201 Year of fee payment: 5 |
|
UR1001 | Payment of annual fee |
Payment date: 19990201 Start annual number: 5 End annual number: 5 |
|
LAPS | Lapse due to unpaid annual fee | ||
UC1903 | Unpaid annual fee |