JPS6429957U - - Google Patents
Info
- Publication number
- JPS6429957U JPS6429957U JP12528387U JP12528387U JPS6429957U JP S6429957 U JPS6429957 U JP S6429957U JP 12528387 U JP12528387 U JP 12528387U JP 12528387 U JP12528387 U JP 12528387U JP S6429957 U JPS6429957 U JP S6429957U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- operating voltage
- telephone
- semiconductor switch
- switch 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
- 239000004065 semiconductor Substances 0.000 claims description 5
- 239000003990 capacitor Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Devices For Supply Of Signal Current (AREA)
Description
第１図は本考案の電話機回路の一実施例を表わ
した回路構成図、第２図は従来の電話機回路の回
路構成図である。
主な図番の説明、１６…半導体スイツチ回路、
２１…切換スイツチ、２２…ブレーク抵抗、２４
…動作電圧供給回路、２５…ダイヤル回路、３２
…コンデンサ。
FIG. 1 is a circuit diagram showing an embodiment of the telephone circuit of the present invention, and FIG. 2 is a circuit diagram of a conventional telephone circuit. Explanation of main figure numbers, 16 ...Semiconductor switch circuit,
21...Selector switch, 22...Break resistor, 24
...Operating voltage supply circuit, 25...Dial circuit, 32
...capacitor.
Claims (1)
路と、閉結することにより前記半導体スイツチ回
路に電話回線間電圧を加え、閉結状態にさせる切
換スイツチと、前記半導体スイツチ回路の開閉動
作制御を行なうダイヤル回路と、前記半導体スイ
ツチ回路を介し電話回線間電圧を受けることによ
り起動し、動作状態になり前記ダイヤル回路に対
しての動作電圧の供給を行なう動作電圧供給回路
と該動作電圧供給回路と同様前記半導体スイツチ
回路を介しての電話回線間電圧を受け、動作状態
になる通話回路と、前記動作電圧供給回路より出
力される動作電圧を充電し、前記ダイヤル回路の
動作電圧保持を行なうコンデンサとより構成した
ことを特徴とする電話機回路。 A semiconductor switch circuit that opens and closes a telephone line, a changeover switch that applies a voltage across the telephone line to the semiconductor switch circuit to bring it into a closed state when it is closed, and a dial circuit that controls the opening and closing operation of the semiconductor switch circuit. and an operating voltage supply circuit which is activated by receiving the telephone line voltage through the semiconductor switch circuit, enters an operating state, and supplies an operating voltage to the dial circuit; The telephone circuit is configured to receive voltage between telephone lines via a switch circuit and become operational, and a capacitor that charges the operating voltage output from the operating voltage supply circuit and maintains the operating voltage of the dial circuit. A telephone circuit characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12528387U JPS6429957U (en) | 1987-08-18 | 1987-08-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12528387U JPS6429957U (en) | 1987-08-18 | 1987-08-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6429957U true JPS6429957U (en) | 1989-02-22 |
Family
ID=31375754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12528387U Pending JPS6429957U (en) | 1987-08-18 | 1987-08-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6429957U (en) |
-
1987
- 1987-08-18 JP JP12528387U patent/JPS6429957U/ja active Pending