JPH01123306U - - Google Patents
Info
- Publication number
- JPH01123306U JPH01123306U JP1835588U JP1835588U JPH01123306U JP H01123306 U JPH01123306 U JP H01123306U JP 1835588 U JP1835588 U JP 1835588U JP 1835588 U JP1835588 U JP 1835588U JP H01123306 U JPH01123306 U JP H01123306U
- Authority
- JP
- Japan
- Prior art keywords
- transistor
- inductive load
- switching element
- circuit
- drive 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
- 230000001939 inductive effect Effects 0.000 claims description 15
- 230000008929 regeneration Effects 0.000 claims description 8
- 238000011069 regeneration method Methods 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims 4
- 230000006698 induction Effects 0.000 claims 1
- 230000001172 regenerating effect Effects 0.000 claims 1
- 230000001568 sexual effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Electronic Switches (AREA)
Description
第１図乃至第６図は本考案の実施例を説明する
回路図、第７図は従来例を説明する回路図である
。
１……電源端子、２……アース端子、３……誘
導性負荷、４……第１のスイツチング素子、５…
…回生回路、６……第２のスイツチング素子、７
……供給手段、１１……第３のスイツチング素子
、１２……電流制御回路。
1 to 6 are circuit diagrams illustrating embodiments of the present invention, and FIG. 7 is a circuit diagram illustrating a conventional example. DESCRIPTION OF SYMBOLS 1... Power supply terminal, 2... Earth terminal, 3... Inductive load, 4... First switching element, 5...
...Regeneration circuit, 6...Second switching element, 7
. . . supply means, 11 . . . third switching element, 12 . . . current control circuit.
Claims (1)
源とアース間に接続された誘導性負荷及び第１の
スイツチング素子と、前記第１のスイツチング素
子に接続され前記誘導性負荷の逆起電圧による電
流を回生させる回生径路を複数有する回生回路と
、回生回路に接続され外部信号により前記回生回
路を制御する第２のスイツチング素子とを備えた
ことを特徴とする誘導性負荷駆動回路。 ２ 請求項記載の第１項において、前記回生回路
に接続され前記負荷に流れる電流を検出する電流
検出用の検出抵抗と、前記第１及び第２のスイツ
チング素子を制御する外部信号が入力される入力
端子と、前記第１のスイツチング素子を制御する
第３のスイツチング素子と、前記検出抵抗の接続
点の電圧を検出し前記第３のスイツチング素子を
制御する電流制御回路とを具備したことを特徴と
する誘導性負荷駆動回路。 ３ 請求項記載の第１項において、前記回生回路
は、前記誘導性負荷の一端に接続され、前記逆起
電圧による電流を流すダイオードと、前記第２の
スイツチング素子の制御信号により前記ダイオー
ドから流れる電流を前記負荷に供給する供給手段
とを備えたことを特徴とする誘導性負荷駆動回路
。 ４ 請求項記載の第３項において、前記供給手段
は、前記ダイオードのカソードと前記負荷の他端
との間に接続された第４のトランジスタと、前記
第２のスイツチング素子の制御信号によつて制御
され前記ダイオードのカソードと前記第４のトラ
ンジスタのベース間に接続された第５のトランジ
スタと、前記第４のトランジスタのベースと前記
ダイオードのカソード間に接続されたツエナーダ
イオードから構成されたことを特徴とする誘導性
負荷駆動回路。 ５ 請求項記載の第４項において、前記パワーツ
エナーダイオードと前記第５のトランジスタが第
４のトランジスタのベースと前記負荷の他端との
間に接続されたことを特徴とする誘導性負荷駆動
回路。 ６ 請求項記載の第４項において、前記第４のト
ランジスタが前記ダイオードのアノードと前記負
荷の一端に接続され、前記第４のトランジスタの
ベースと前記アースライン間に前記パワーツエナ
ーダイオード及び前記第５のトランジスタが接続
されたことを特徴とする誘導性負荷駆動回路。 ７ 請求項記載の第２項において、前記電流制御
回路は、前記検出抵抗の出力電圧を分圧する第１
の分割抵抗と、電源電圧を分圧し基準電圧を得る
ための第２の分割抵抗と、前記第１の分割抵抗の
出力電圧と前記第２の分割抵抗の基準電圧とを比
較するコンパレータと、前記コンパレータの出力
信号により制御され、前記ドライブ回路の一部を
制御する前記第７のトランジスタと、前記第２の
分割抵抗と並列に接続され、前記コンパレータの
出力で制御される第６のトランジスタとを備えた
ことを特徴とする誘導性負荷駆動回路。 ８ 請求項記載の第７項において、前記第２の分
割抵抗の一部に並列接続され、外部信号で制御さ
れる第８のトランジスタを備えたことを特徴とす
る誘導性負荷駆動回路。 ９ 請求項記載の第２項において、前記負荷が複
数個並列に配置されたとき、前記電流検出用の検
出抵抗、前記負荷へ流れる電流を制御する電流制
御回路及び逆起電圧によつて流れる電流を回生さ
せる回生回路を共通に用いることを特徴とする誘
導性負荷駆動回路。 １０ 請求項記載の第１項乃至第９項において、
前記回路が混成集積回路基板上に形成されたこと
を特徴とする誘導性負荷駆動回路。[Claims for Utility Model Registration] 1. A drive circuit for driving an inductive load, which includes an inductive load and a first switching element connected between a power source and ground, and a first switching element connected to the first switching element and the second switching element connected to the first switching element. An induction device comprising: a regeneration circuit having a plurality of regeneration paths for regenerating current due to a back electromotive voltage of an inductive load; and a second switching element connected to the regeneration circuit and controlling the regeneration circuit using an external signal. sexual load drive circuit. 2. In claim 1, a detection resistor for detecting a current that is connected to the regeneration circuit and detects the current flowing through the load, and an external signal that controls the first and second switching elements are input. It is characterized by comprising an input terminal, a third switching element that controls the first switching element, and a current control circuit that detects the voltage at the connection point of the detection resistor and controls the third switching element. Inductive load drive circuit. 3. In claim 1, the regeneration circuit includes a diode that is connected to one end of the inductive load and allows current to flow due to the back electromotive voltage, and a current that flows from the diode in accordance with a control signal of the second switching element. An inductive load drive circuit comprising supply means for supplying current to the load. 4. In claim 3, the supply means is configured to provide a fourth transistor connected between the cathode of the diode and the other end of the load, and a control signal for the second switching element. a fifth transistor controlled and connected between the cathode of the diode and the base of the fourth transistor; and a Zener diode connected between the base of the fourth transistor and the cathode of the diode. Features of inductive load drive circuit. 5. The inductive load drive circuit according to claim 4, wherein the power Zener diode and the fifth transistor are connected between the base of the fourth transistor and the other end of the load. . 6. In claim 4, the fourth transistor is connected to the anode of the diode and one end of the load, and the power Zener diode and the fifth transistor are connected between the base of the fourth transistor and the ground line. An inductive load drive circuit characterized in that a transistor is connected to the inductive load drive circuit. 7. In claim 2, the current control circuit includes a first circuit that divides the output voltage of the detection resistor.
a second dividing resistor for dividing the power supply voltage to obtain a reference voltage; a comparator for comparing the output voltage of the first dividing resistor with the reference voltage of the second dividing resistor; The seventh transistor is controlled by the output signal of the comparator and controls a part of the drive circuit, and the sixth transistor is connected in parallel with the second dividing resistor and is controlled by the output of the comparator. An inductive load drive circuit characterized by comprising: 8. The inductive load drive circuit according to claim 7, further comprising an eighth transistor connected in parallel to a part of the second dividing resistor and controlled by an external signal. 9. In claim 2, when a plurality of the loads are arranged in parallel, the current flowing due to the detection resistor for detecting the current, a current control circuit that controls the current flowing to the load, and a back electromotive voltage. An inductive load drive circuit characterized by commonly using a regeneration circuit that regenerates. 10 In paragraphs 1 to 9 of the claims,
An inductive load driving circuit characterized in that the circuit is formed on a hybrid integrated circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1835588U JPH01123306U (en) | 1988-02-15 | 1988-02-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1835588U JPH01123306U (en) | 1988-02-15 | 1988-02-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01123306U true JPH01123306U (en) | 1989-08-22 |
Family
ID=31232928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1835588U Pending JPH01123306U (en) | 1988-02-15 | 1988-02-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01123306U (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59184504A (en) * | 1983-04-04 | 1984-10-19 | Nissan Motor Co Ltd | Drive control device for solenoid driven plunger |
| JPS61187304A (en) * | 1985-02-15 | 1986-08-21 | Togami Electric Mfg Co Ltd | Direct current electromagnet device |
| JPS622690A (en) * | 1985-06-28 | 1987-01-08 | 松下電器産業株式会社 | parts supply device |
-
1988
- 1988-02-15 JP JP1835588U patent/JPH01123306U/ja active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59184504A (en) * | 1983-04-04 | 1984-10-19 | Nissan Motor Co Ltd | Drive control device for solenoid driven plunger |
| JPS61187304A (en) * | 1985-02-15 | 1986-08-21 | Togami Electric Mfg Co Ltd | Direct current electromagnet device |
| JPS622690A (en) * | 1985-06-28 | 1987-01-08 | 松下電器産業株式会社 | parts supply device |
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