JPH0454855U - - Google Patents
Info
- Publication number
- JPH0454855U JPH0454855U JP9556190U JP9556190U JPH0454855U JP H0454855 U JPH0454855 U JP H0454855U JP 9556190 U JP9556190 U JP 9556190U JP 9556190 U JP9556190 U JP 9556190U JP H0454855 U JPH0454855 U JP H0454855U
- Authority
- JP
- Japan
- Prior art keywords
- thermal head
- capacitor
- power source
- power supply
- charging
- 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 3
- 230000005684 electric field Effects 0.000 description 1
Landscapes
- Electronic Switches (AREA)
Description
第１図は実施例のカードリード／ライタの概略
構成を示すブロツク図、第２図は本実施例カード
リード／ライタにおけるヘツドドライバの概略構
成を示すブロツク図、そして、第３図はヘツドド
ライバの各部のタイミングを示すタイミング図で
ある。
図中、１０１……制御部、１０２……入力部、
１０３……ヘツドドライバ、１０４……サーマル
ヘツド、１０５……電源、１０６……リーダ部、
１０７……搬送機構部、１１０……表示部、１２
１……ＤＣ・ＤＣコンバータ、１２２……電界コ
ンデンサ、１２３……通電回路、１２４……電源
線、１２５……ゲート回路、１２６……通電信号
、１２７……ゲート信号である。
FIG. 1 is a block diagram showing the schematic structure of the card reader/writer of this embodiment, FIG. 2 is a block diagram showing the schematic structure of the head driver in the card reader/writer of this embodiment, and FIG. 3 is a block diagram showing the schematic structure of the head driver in the card reader/writer of this embodiment. FIG. 3 is a timing chart showing the timing of each part. In the figure, 101... control section, 102... input section,
103...Head driver, 104...Thermal head, 105...Power supply, 106...Reader section,
107...Transportation mechanism section, 110...Display section, 12
1... DC/DC converter, 122... Electric field capacitor, 123... Energizing circuit, 124... Power supply line, 125... Gate circuit, 126... Energizing signal, 127... Gate signal.
Claims (1)
源と、 前記サーマルヘツドと並列に前記電源に接続さ
れ、前記サーマルヘツドが少なくとも１行を記録
するのに必要な電力を充電できる容量を備えたコ
ンデンサと、 前記サーマルヘツドによる記録時、前記コンデ
ンサに充電された電力により前記サーマルヘツド
を発熱駆動し、前記サーマルヘツドによる非記録
時、前記コンデンサを充電する手段と、 を有することを特徴とするサーマルヘツド駆動回
路。 (2) 前記電源は機器本体の電源を前記サーマル
ヘツドの駆動電圧まで昇圧する昇圧手段を備える
ことを特徴とする請求項第１項に記載のサーマル
ヘツド駆動回路。[Claims for Utility Model Registration] (1) A power source that generates a driving voltage for a thermal head, and a power source connected to the power source in parallel with the thermal head and necessary for the thermal head to record at least one line. a capacitor having a capacity capable of charging the thermal head; and means for driving the thermal head to generate heat using the electric power charged in the capacitor when the thermal head is recording, and charging the capacitor when the thermal head is not recording. A thermal head drive circuit comprising: (2) The thermal head drive circuit according to claim 1, wherein the power supply includes boosting means for boosting the power supply of the device body to the drive voltage of the thermal head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9556190U JPH0454855U (en) | 1990-09-13 | 1990-09-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9556190U JPH0454855U (en) | 1990-09-13 | 1990-09-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0454855U true JPH0454855U (en) | 1992-05-11 |
Family
ID=31834356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9556190U Pending JPH0454855U (en) | 1990-09-13 | 1990-09-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0454855U (en) |
-
1990
- 1990-09-13 JP JP9556190U patent/JPH0454855U/ja active Pending
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