JPH0283699U - - Google Patents
Info
- Publication number
- JPH0283699U JPH0283699U JP16312788U JP16312788U JPH0283699U JP H0283699 U JPH0283699 U JP H0283699U JP 16312788 U JP16312788 U JP 16312788U JP 16312788 U JP16312788 U JP 16312788U JP H0283699 U JPH0283699 U JP H0283699U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- power mos
- stepping motor
- power
- terminal
- 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
- 238000004804 winding Methods 0.000 claims description 3
- 230000007423 decrease Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Control Of Stepping Motors (AREA)
Description
第１図は本考案に係るステツピングモータドラ
イブＩＣの一実施例を示す回路構成図、第２図は
従来のステツピングモータドライブＩＣの回路図
、第３図は従来のパワーセーブ回路である。
１…ＩＣの電源端子、２…パワーセーブ信号入
力端子、３…コントロール信号入力端子、４…チ
ヤージポンプ回路、５…昇圧電圧（ゲート電圧）
端子、６ａ〜６ｄ…バツフア、７ａ〜７ｄ…ＡＮ
Ｄ回路、８…レベルシフト回路ブロツク、９ａ，
９ｂ，１０ａ，１０ｂ，１１，１２，１４ａ，１
４ｂ，１５ａ，１５ｂ，１６，１７…Ｎチヤンネ
ルパワーＭＯＳ ＦＥＴ、１３，２０…モータ電
圧印加端子、１８，１９…モータ巻線、２１…コ
ントロール信号入力端子、２２…コントロール回
路、２３…ＩＣの電源端子、２４…チヤージポン
プ回路、２５…昇圧電圧（ゲート電圧）端子、２
６…レベルシフト回路ブロツク、２７，２９…モ
ータ電圧印加端子、２８，２１０…Ｈブリツジ出
力ドライブ回路、２１１，２１２…モータ巻線、
３１…パワーセーブ信号入力、３２…ＰＮＰトラ
ンジスタ、３３…パワーセーブ時電流制限抵抗、
３４…モータ電源、３５…Ｈブリツジ出力ドライ
ブ回路、３６…モータ電圧印加端子。
FIG. 1 is a circuit diagram showing an embodiment of a stepping motor drive IC according to the present invention, FIG. 2 is a circuit diagram of a conventional stepping motor drive IC, and FIG. 3 is a conventional power saving circuit. 1... IC power supply terminal, 2... Power save signal input terminal, 3... Control signal input terminal, 4... Charge pump circuit, 5... Boost voltage (gate voltage)
Terminal, 6a to 6d...Buffer, 7a to 7d...AN
D circuit, 8...Level shift circuit block, 9a,
9b, 10a, 10b, 11, 12, 14a, 1
4b, 15a, 15b, 16, 17...N channel power MOS FET, 13, 20...Motor voltage application terminal, 18, 19...Motor winding, 21...Control signal input terminal, 22...Control circuit, 23...IC power supply Terminal, 24... Charge pump circuit, 25... Boost voltage (gate voltage) terminal, 2
6... Level shift circuit block, 27, 29... Motor voltage application terminal, 28, 210... H bridge output drive circuit, 211, 212... Motor winding,
31... Power save signal input, 32... PNP transistor, 33... Current limiting resistor during power save,
34...Motor power supply, 35...H bridge output drive circuit, 36...Motor voltage application terminal.
Claims (1)
路を構成しているステツピングモータドライブＩ
Ｃにおいて、それぞれのパワーＭＯＳ ＦＥＴを
２個以上の並列接続されたパワーＭＯＳ ＦＥＴ
に分割し分割された各々のパワーＭＯＳ ＦＥＴ
が“ＯＮ”する数を変えることによつて“ＯＮ”
抵抗を増減しステツピングモータが現在ある位置
を保持する保持モード時にモータ巻線に流れる電
流を制限する回路を有することを特徴とするステ
ツピングモータドライブＩＣのパワーセーブ回路
。 Stepping motor drive I that configures the H-bridge drive circuit with power MOS FETs
In C, each power MOS FET is connected in parallel to two or more power MOS FETs.
Each power MOS FET is divided into
“ON” by changing the number of “ON”
A power save circuit for a stepping motor drive IC, comprising a circuit that increases or decreases resistance to limit the current flowing to a motor winding during a holding mode in which the stepping motor maintains a current position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16312788U JPH0283699U (en) | 1988-12-16 | 1988-12-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16312788U JPH0283699U (en) | 1988-12-16 | 1988-12-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0283699U true JPH0283699U (en) | 1990-06-28 |
Family
ID=31447573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16312788U Pending JPH0283699U (en) | 1988-12-16 | 1988-12-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0283699U (en) |
-
1988
- 1988-12-16 JP JP16312788U patent/JPH0283699U/ja active Pending
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