JPS62143350U - - Google Patents
Info
- Publication number
- JPS62143350U JPS62143350U JP3063486U JP3063486U JPS62143350U JP S62143350 U JPS62143350 U JP S62143350U JP 3063486 U JP3063486 U JP 3063486U JP 3063486 U JP3063486 U JP 3063486U JP S62143350 U JPS62143350 U JP S62143350U
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- circuit
- battery
- series
- supply circuit
- 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
- 230000004044 response Effects 0.000 claims 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
Landscapes
- Devices For Supply Of Signal Current (AREA)
Description
図は本考案の実施例を示す回路図である。
１…ＤＢ（ダイオードブリツジ）、２…ＤＩＣ
（ダイヤル回路）、Ｌ１，Ｌ２…線路端子、ＨＳ
１，ＨＳ２…フツクスイツチ、Ｒ１〜Ｒ７…抵抗
器、Ｃ１，Ｃ２…コンデンサ、Ｄ１，Ｄ２…ダイ
オード、Ｑ１…トランジスタ、Ｑ２…ＦＥＴ（電
界効果形トランジスタ）。
The figure is a circuit diagram showing an embodiment of the present invention. 1...DB (diode bridge), 2...DIC
(dial circuit), L 1 , L 2 ... line terminal, HS
1 , HS 2 ... hook switch, R 1 to R 7 ... resistor, C 1 , C 2 ... capacitor, D 1 , D 2 ... diode, Q 1 ... transistor, Q 2 ... FET (field effect transistor).
Claims (1)
給回路を介して所定の電源電流が供給されかつオ
ンフツク状態のときには電池から電源電流の供給
されるダイヤルメモリを備えたメモリダイヤル電
話機において、前記電源供給回路の出力側へ並列
に接続された前記電池と放電スイツチ用のダイオ
ードとの直列回路と、前記電源供給回路の出力電
圧を分圧する分圧回路と、該分圧回路の分圧電圧
が所定値以上のときオフとなり前記分圧電圧の低
下に応じてオンとなる前記直列回路へ直列に挿入
されたスイツチング素子とを設けたことを特徴と
するメモリダイヤル電話機。 In a memory dial telephone equipped with a dial memory, a predetermined power supply current is supplied via a power supply circuit by a loop current in an off-hook state, and a power supply current is supplied from a battery in an on-hook state, the output side of the power supply circuit a series circuit of the battery and a diode for a discharge switch connected in parallel to the battery; a voltage divider circuit that divides the output voltage of the power supply circuit; and a switching element inserted in series into the series circuit that turns on in response to a decrease in the divided voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3063486U JPS62143350U (en) | 1986-03-05 | 1986-03-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3063486U JPS62143350U (en) | 1986-03-05 | 1986-03-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62143350U true JPS62143350U (en) | 1987-09-10 |
Family
ID=30835626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3063486U Pending JPS62143350U (en) | 1986-03-05 | 1986-03-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62143350U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6043958A (en) * | 1983-08-22 | 1985-03-08 | Fujitsu Ltd | Power supply circuit |
-
1986
- 1986-03-05 JP JP3063486U patent/JPS62143350U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6043958A (en) * | 1983-08-22 | 1985-03-08 | Fujitsu Ltd | Power supply circuit |
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