JPH0482802U - - Google Patents
Info
- Publication number
- JPH0482802U JPH0482802U JP12526990U JP12526990U JPH0482802U JP H0482802 U JPH0482802 U JP H0482802U JP 12526990 U JP12526990 U JP 12526990U JP 12526990 U JP12526990 U JP 12526990U JP H0482802 U JPH0482802 U JP H0482802U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- resistor
- trimming
- resistance value
- terminals
- 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.)
- Granted
Links
- 238000009966 trimming Methods 0.000 claims description 8
- 230000001747 exhibiting effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
Landscapes
- Apparatuses And Processes For Manufacturing Resistors (AREA)
Description
第１図は本考案の一実施例を示す要部の回路構
成図、第２図は第１図示のトリミング装置の正面
図である。
２１……定電流回路（通電手段）、２３，２４
……コンパレータ（比較手段）、２６……定電圧
回路、２８……制御回路（制御手段）、Ｗ……抵
抗体、ＥＸ……測定電圧、Ｅ１，Ｅ２……基準電
圧、Ｐ１……トリミング終了信号。
FIG. 1 is a circuit diagram of a main part showing an embodiment of the present invention, and FIG. 2 is a front view of the trimming device shown in FIG. 21... constant current circuit (current supply means), 23, 24
... Comparator (comparison means), 26 ... Constant voltage circuit, 28 ... Control circuit (control means), W ... Resistor, EX ... Measurement voltage, E 1 , E 2 ... Reference voltage, P 1 ... ...Trimming end signal.
Claims (1)
値に達するまでトリミングする抵抗体のトリミン
グ装置において、 トリミング中の抵抗体の端子間に定電流を流す
通電手段と、 前記目標抵抗値を示す抵抗体に前記定電流を流
したときの前記端子間の電圧を基準電圧として設
定する設定手段と、 前記トリミング中の抵抗体の抵抗値に対応する
前記端子間の電圧と前記基準電圧とを連続的に比
較して、前者の電圧が後者の電圧に達したときに
トリミング終了信号を出力する比較手段と、 前記比較手段が出力するトリミング終了信号に
基づいて前記抵抗体のトリミングを終了させる制
御手段と を備えてなることを特徴とする抵抗体のトリミン
グ装置。[Claims for Utility Model Registration] In a resistor trimming device that trims a resistor until the resistance value between its terminals reaches a predetermined target resistance value, an energizing means for passing a constant current between the terminals of the resistor during trimming. and setting means for setting the voltage between the terminals as a reference voltage when the constant current is passed through the resistor exhibiting the target resistance value, and the voltage between the terminals corresponding to the resistance value of the resistor being trimmed. a comparison means that continuously compares a voltage with the reference voltage and outputs a trimming end signal when the former voltage reaches the latter voltage; and a comparison means that outputs a trimming end signal when the former voltage reaches the latter voltage; A resistor trimming device comprising: a control means for ending trimming of the resistor body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990125269U JPH087602Y2 (en) | 1990-11-29 | 1990-11-29 | Resistor trimming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990125269U JPH087602Y2 (en) | 1990-11-29 | 1990-11-29 | Resistor trimming device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0482802U true JPH0482802U (en) | 1992-07-20 |
| JPH087602Y2 JPH087602Y2 (en) | 1996-03-04 |
Family
ID=31872875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990125269U Expired - Fee Related JPH087602Y2 (en) | 1990-11-29 | 1990-11-29 | Resistor trimming device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH087602Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7503671B2 (en) | 2006-07-13 | 2009-03-17 | Pelican Products, Inc. | Flashlight |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4989841A (en) * | 1972-12-29 | 1974-08-28 | ||
| JPH02305412A (en) * | 1989-05-19 | 1990-12-19 | Matsushita Electron Corp | Trimming method for thin film resistor |
-
1990
- 1990-11-29 JP JP1990125269U patent/JPH087602Y2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4989841A (en) * | 1972-12-29 | 1974-08-28 | ||
| JPH02305412A (en) * | 1989-05-19 | 1990-12-19 | Matsushita Electron Corp | Trimming method for thin film resistor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH087602Y2 (en) | 1996-03-04 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |