JPS5863618U - protection circuit - Google Patents
protection circuitInfo
- Publication number
- JPS5863618U JPS5863618U JP15544081U JP15544081U JPS5863618U JP S5863618 U JPS5863618 U JP S5863618U JP 15544081 U JP15544081 U JP 15544081U JP 15544081 U JP15544081 U JP 15544081U JP S5863618 U JPS5863618 U JP S5863618U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- passage
- circuit
- protection circuit
- protection
- 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
- Continuous-Control Power Sources That Use Transistors (AREA)
- Accessory Devices And Overall Control Thereof (AREA)
- Electronic Switches (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来例のブロック図。第２図、第３図は従来例
を説明するためのタイミングチャート。
第４図は本考案の実施例のブロック図。第５図は第４図
の実施例を垂−マルヘッドユニット用に適用した回路の
ブロック図である。
５・・・ボルテージレギュレータ、７・・・スイッチン
グ回路、１０・・・制御回路。FIG. 1 is a block diagram of a conventional example. FIGS. 2 and 3 are timing charts for explaining a conventional example. FIG. 4 is a block diagram of an embodiment of the present invention. FIG. 5 is a block diagram of a circuit in which the embodiment of FIG. 4 is applied to a vertical head unit. 5... Voltage regulator, 7... Switching circuit, 10... Control circuit.
Claims (1)
ルテージレギュレータと、第１の電圧より変動の速い第
２の電圧に基づいて前記ボルテージレギュレータから出
力された信号の通過・不通過を制御するスイッチング回
路と、保護用信号を入力し該保護用信号の通過・不通過
を前記スイッチング回路の出力に基づいて制御する制御
回路とからなる保護回路。 ＋２＞ 第１の電圧はサーマルヘッドのヘッド？！圧
であり、第２の電圧はロジック回路の駆動用電圧である
ことを特徴とする実用新案登録請求の範囲第（１）項記
載の保護回路。(1) A voltage regulator that converts a first voltage as an input into a predetermined voltage, and a voltage regulator that controls the passage or non-passage of a signal output from the voltage regulator based on a second voltage that fluctuates faster than the first voltage. A protection circuit comprising a switching circuit for controlling, and a control circuit for inputting a protection signal and controlling passage or non-passage of the protection signal based on an output of the switching circuit. +2> Is the first voltage the head of the thermal head? ! The protection circuit according to claim 1, wherein the second voltage is a voltage for driving a logic circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15544081U JPS5863618U (en) | 1981-10-21 | 1981-10-21 | protection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15544081U JPS5863618U (en) | 1981-10-21 | 1981-10-21 | protection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5863618U true JPS5863618U (en) | 1983-04-28 |
Family
ID=29948018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15544081U Pending JPS5863618U (en) | 1981-10-21 | 1981-10-21 | protection circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5863618U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60208275A (en) * | 1984-04-03 | 1985-10-19 | Canon Inc | Recording apparatus |
| JPS60229776A (en) * | 1984-04-28 | 1985-11-15 | Brother Ind Ltd | Printer |
-
1981
- 1981-10-21 JP JP15544081U patent/JPS5863618U/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60208275A (en) * | 1984-04-03 | 1985-10-19 | Canon Inc | Recording apparatus |
| JPS60229776A (en) * | 1984-04-28 | 1985-11-15 | Brother Ind Ltd | Printer |
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