JPH02142998U - - Google Patents
Info
- Publication number
- JPH02142998U JPH02142998U JP1989052578U JP5257889U JPH02142998U JP H02142998 U JPH02142998 U JP H02142998U JP 1989052578 U JP1989052578 U JP 1989052578U JP 5257889 U JP5257889 U JP 5257889U JP H02142998 U JPH02142998 U JP H02142998U
- Authority
- JP
- Japan
- Prior art keywords
- operational amplifier
- port
- input terminal
- inductive load
- transistor
- 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
- 230000001939 inductive effect Effects 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Control Of Direct Current Motors (AREA)
Description
図面は本考案の一実施例を示す回路図である。
１…誘導負荷（ブロアモータ）、２…トラアジ
スタ、３…オペアンプ、５…基準電圧発生回路、
６…帰還抵抗、７…制御部（マイクロコンピユー
タ）、１０…デジタユーアナログ変換回路、Ｐ１
〜Ｐ４…第１ポート、Ｐ０…第２ポート。
The drawing is a circuit diagram showing an embodiment of the present invention. 1...Inductive load (blower motor), 2...Target register, 3...Operation amplifier, 5...Reference voltage generation circuit,
6...Feedback resistor, 7...Control unit (microcomputer), 10...Digital-to-analog conversion circuit, P1
~ P4 ...first port, P0 ... second port.
補正 平２．４．１１
考案の名称を次のように補正する。
考案の名称 誘導負荷の制御装置。
実用新案登録請求の範囲、図面の簡単な説明を
次のように補正する。Amendment 2.4.11 The name of the invention is amended as follows. Name of invention Inductive load control device. The scope of claims for utility model registration and the brief description of the drawings are amended as follows.
【実用新案登録請求の範囲】
誘導負荷の一端に電源が接続され、他端にトラ
ンジスタが接続され、このトランジスタを制御す
るオペアンプは、一方の入力端子が基準電圧発生
回路に接続され、他方の入力端子が、デジタルー
アナログ変換回路を介して制御部の第１ポートに
接続されるとともに、帰還抵抗を介して上記誘導
負荷の他端に接続され、これにより、オペアンプ
が制御部の第１ポートからの制御信号に基づいて
上記誘導負荷の他端の電圧をフイードバツク制御
する装置において、上記制御部は第２ポートを有
し、この第２のポートと上記オペアンプの他方の
入力端子とが接続され、第２のポートからのオフ
指令の制御信号に基づいてオペアンプの他方の入
力端子の電圧レベルが強制的に低下され、これに
よりオペアンプの制御でトランジスタがオフにな
つて、誘導負荷への給電が停止されることを特徴
とする誘導負荷の制御装置。[Claims for Utility Model Registration] A power supply is connected to one end of the inductive load, a transistor is connected to the other end, and an operational amplifier that controls this transistor has one input terminal connected to a reference voltage generation circuit, and the other input terminal connected to a reference voltage generation circuit. The terminal is connected to the first port of the control unit via the digital-to-analog conversion circuit, and is also connected to the other end of the inductive load via the feedback resistor, so that the operational amplifier is connected from the first port of the control unit to In the device for feedback controlling the voltage at the other end of the inductive load based on a control signal, the control section has a second port, and the second port is connected to the other input terminal of the operational amplifier, Based on the off command control signal from the second port, the voltage level at the other input terminal of the operational amplifier is forcibly reduced, which turns off the transistor under the control of the operational amplifier and stops powering the inductive load. An inductive load control device characterized in that:
【図面の簡単な説明】
第１図は本考案の一実施例を示す回路図である
。第２図は従来例を示す回路図である。
１…誘導負荷（ブロアモータ）、２…トランジ
スタ、３…オペアンプ、５…基準電圧発生回路、
６…帰還抵抗、７…制御部（マイクロコピユータ
）、１０…デジタルーアナログ変換回路、Ｐ１〜
Ｐ４…第１ポート、Ｐ０…第２ポート。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a circuit diagram showing an embodiment of the present invention. FIG. 2 is a circuit diagram showing a conventional example. 1... Inductive load (blower motor), 2... Transistor, 3... Operational amplifier, 5... Reference voltage generation circuit,
6...Feedback resistor, 7...Control unit (microcopyter), 10...Digital-analog conversion circuit, P1 ~
P4 ...first port, P0 ...second port.
Claims (1)
ンジスタが接続され、このトランジスタを制御す
るオペアンプは、一方の入力端子が基準電圧発生
回路に接続され、他方の入力端子が、デジタルー
アナログ変換回路を介して制御部の第１ポートに
接続されるとともに、帰還抵抗を介して上記誘導
負荷の他端に接続され、これにより、オペアンプ
が制御部の第１ポートからの制御信号に基づいて
上記誘導負荷の他端の電圧をフイードバツク制御
する装置において、上記制御部は第２ポートを有
し、この第２のポートと上記オペアンプの他方の
入力端子とが接続され、第２のポートからのオフ
指令の制御信号に基づいてオペアンプの他方の入
力端子の電圧レベルが強制的に低下され、これに
よりオペアンプの制御でトランジスタがオフにな
つて、誘導負荷への給電が停止されることを特徴
とする誘導負荷の制御装置。 A power supply is connected to one end of the inductive load, and a transistor is connected to the other end.The operational amplifier that controls this transistor has one input terminal connected to a reference voltage generation circuit, and the other input terminal connected to a digital-to-analog conversion circuit. The operational amplifier is connected to the first port of the control section via the inductive load, and is connected to the other end of the inductive load via the feedback resistor. In the device for feedback controlling the voltage at the other end of the load, the control section has a second port, the second port is connected to the other input terminal of the operational amplifier, and an off command is received from the second port. The voltage level of the other input terminal of the operational amplifier is forcibly lowered based on the control signal of the operational amplifier, which turns off the transistor under the control of the operational amplifier and stops power supply to the inductive load. Load control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989052578U JPH0756640Y2 (en) | 1989-05-09 | 1989-05-09 | Motor controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989052578U JPH0756640Y2 (en) | 1989-05-09 | 1989-05-09 | Motor controller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02142998U true JPH02142998U (en) | 1990-12-04 |
| JPH0756640Y2 JPH0756640Y2 (en) | 1995-12-25 |
Family
ID=31572995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989052578U Expired - Lifetime JPH0756640Y2 (en) | 1989-05-09 | 1989-05-09 | Motor controller |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0756640Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57162980A (en) * | 1981-03-31 | 1982-10-06 | Teac Co | Control circuit for motor |
| JPS6139883A (en) * | 1984-07-30 | 1986-02-26 | Matsushita Electric Works Ltd | Rotating speed controller of dc motor |
-
1989
- 1989-05-09 JP JP1989052578U patent/JPH0756640Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57162980A (en) * | 1981-03-31 | 1982-10-06 | Teac Co | Control circuit for motor |
| JPS6139883A (en) * | 1984-07-30 | 1986-02-26 | Matsushita Electric Works Ltd | Rotating speed controller of dc motor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0756640Y2 (en) | 1995-12-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH02142998U (en) | ||
| JPH02149124U (en) | ||
| JPH03101192U (en) | ||
| JPS62112729U (en) | ||
| JPH0279184U (en) | ||
| JPH0439096U (en) | ||
| JPH03115416U (en) | ||
| JPH02112032U (en) | ||
| JPH01137680U (en) | ||
| JPH0222097U (en) | ||
| JPS63182682U (en) | ||
| JPS59152584U (en) | electric heating device | |
| JPS63202141U (en) | ||
| JPS60156895U (en) | Motor speed control device | |
| JPH0291493U (en) | ||
| JPS63144760U (en) | ||
| JPH02130011U (en) | ||
| JPS63102060U (en) | ||
| JPH0378309U (en) | ||
| JPH02116323U (en) | ||
| JPH0325917U (en) | ||
| JPS58119242U (en) | load drive circuit | |
| JPS6155487U (en) | ||
| JPH0398476U (en) | ||
| JPS6365311U (en) |