JPS5491015A - Power supply system of electronic switchboard - Google Patents
Power supply system of electronic switchboardInfo
- Publication number
- JPS5491015A JPS5491015A JP15874377A JP15874377A JPS5491015A JP S5491015 A JPS5491015 A JP S5491015A JP 15874377 A JP15874377 A JP 15874377A JP 15874377 A JP15874377 A JP 15874377A JP S5491015 A JPS5491015 A JP S5491015A
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- converter
- input
- voltage
- miniature
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M19/00—Current supply arrangements for telephone systems
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Devices For Supply Of Signal Current (AREA)
Abstract
PURPOSE:To make it possible to feed various DC voltages from a miniature and lightweight DC-DC converter by inserting a flywheel diode in parallel to the input of a voltage-dividing power supply. CONSTITUTION:Power from main power supply 11 is fed to electronic loads 141 to 14n of the switchboard via voltage-diviging power supplies 301 to 30n. By inserting flywheel diodes 31 in parallel to inputs of respective voltage-dividing power supplies, impedance values between input sides and electronic-system load sides are made low sufficiently to remove variations in potential, and the input and output of the DC-DC converter are connected together directly. Consequently, a miniature and light-weight DC-DC converter can be obtained.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15874377A JPS5491015A (en) | 1977-12-28 | 1977-12-28 | Power supply system of electronic switchboard |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15874377A JPS5491015A (en) | 1977-12-28 | 1977-12-28 | Power supply system of electronic switchboard |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5491015A true JPS5491015A (en) | 1979-07-19 |
Family
ID=15678359
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15874377A Pending JPS5491015A (en) | 1977-12-28 | 1977-12-28 | Power supply system of electronic switchboard |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5491015A (en) |
-
1977
- 1977-12-28 JP JP15874377A patent/JPS5491015A/en active Pending
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