JPH02123616U - - Google Patents
Info
- Publication number
- JPH02123616U JPH02123616U JP3064789U JP3064789U JPH02123616U JP H02123616 U JPH02123616 U JP H02123616U JP 3064789 U JP3064789 U JP 3064789U JP 3064789 U JP3064789 U JP 3064789U JP H02123616 U JPH02123616 U JP H02123616U
- Authority
- JP
- Japan
- Prior art keywords
- memory
- power supply
- capacitor
- voltage
- resistor
- 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
- 239000003990 capacitor Substances 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Power Sources (AREA)
- Techniques For Improving Reliability Of Storages (AREA)
Description
図は本考案のコントロール装置のメモリーバツ
クアツプ回路を用いたコードレス電話機の子機の
ブロツク図である。
主な図番の説明、１……コントロール装置、２
……メモリー、３……電池、６……コンデンサー
、７……抵抗。
The figure is a block diagram of a cordless telephone handset using the memory backup circuit of the control device of the present invention. Explanation of main drawing numbers, 1...control device, 2
...Memory, 3...Battery, 6...Capacitor, 7...Resistor.
Claims (1)
し電源を接続し、バツクアツプ用のコンデンサー
にダイオードを介し前記電源を接続すると共に、
抵抗を介し前記メモリーを接続し、正常動作時電
源の電圧にてメモリーを動作させると共に、前記
コンデンサーにチヤージを行ない、前記電源より
の電圧が停止時コンデンサーにチヤージされた電
圧をメモリーに抵抗を介して供給し、メモリーの
バツクアツプを行なうことを特徴とするコントロ
ール装置のメモリーバツクアツプ回路。 A power supply is connected to the memory of the control circuit through a diode, and the power supply is connected to a backup capacitor through a diode,
The memory is connected through a resistor, and the memory is operated with the voltage of the power supply during normal operation, and the capacitor is charged, and when the voltage from the power supply is stopped, the voltage charged to the capacitor is transferred to the memory through the resistor. 1. A memory backup circuit for a control device, characterized in that the memory is supplied with a memory and backs up the memory.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3064789U JPH02123616U (en) | 1989-03-16 | 1989-03-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3064789U JPH02123616U (en) | 1989-03-16 | 1989-03-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02123616U true JPH02123616U (en) | 1990-10-11 |
Family
ID=31255893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3064789U Pending JPH02123616U (en) | 1989-03-16 | 1989-03-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02123616U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5519269B2 (en) * | 1977-09-22 | 1980-05-24 |
-
1989
- 1989-03-16 JP JP3064789U patent/JPH02123616U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5519269B2 (en) * | 1977-09-22 | 1980-05-24 |