JPS5679311A - Electric power device - Google Patents
Electric power deviceInfo
- Publication number
- JPS5679311A JPS5679311A JP15712579A JP15712579A JPS5679311A JP S5679311 A JPS5679311 A JP S5679311A JP 15712579 A JP15712579 A JP 15712579A JP 15712579 A JP15712579 A JP 15712579A JP S5679311 A JPS5679311 A JP S5679311A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- diode
- output
- base
- stabilized
- 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
Landscapes
- Television Receiver Circuits (AREA)
- Continuous-Control Power Sources That Use Transistors (AREA)
Abstract
PURPOSE: To achieve excellent voltage charge by obtaining flat characteristics within the stabilized range of input-voltage-to-output-voltage characteristics by interposing a diode between an unstabilized input terminal and the base of a transistor for error amplification.
CONSTITUTION: When the power voltage is applied to input terminal 1, the voltage set by voltage-dividing resistances 17 and 18 is applied to the base of error-amplifying transistor TR3 via diode 19 and further base resistance 13 to actuate a stabilized power source circuit. After it is actuated temporarily, part of the output voltage is applied to the cathode of diode 19, but values of voltage-dividing resistances 17 and 18 are so set that diode 19 will turn off at this time. Current input-voltage-to- output-voltage characteristics are flat within the stabilized range. As a result, built- in battery 21 can be charged without requiring overvoltage preventing circuit 22.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15712579A JPS5679311A (en) | 1979-12-03 | 1979-12-03 | Electric power device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15712579A JPS5679311A (en) | 1979-12-03 | 1979-12-03 | Electric power device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5679311A true JPS5679311A (en) | 1981-06-29 |
Family
ID=15642749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15712579A Pending JPS5679311A (en) | 1979-12-03 | 1979-12-03 | Electric power device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5679311A (en) |
-
1979
- 1979-12-03 JP JP15712579A patent/JPS5679311A/en active Pending
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