JPH0377298U - - Google Patents
Info
- Publication number
- JPH0377298U JPH0377298U JP1989138400U JP13840089U JPH0377298U JP H0377298 U JPH0377298 U JP H0377298U JP 1989138400 U JP1989138400 U JP 1989138400U JP 13840089 U JP13840089 U JP 13840089U JP H0377298 U JPH0377298 U JP H0377298U
- Authority
- JP
- Japan
- Prior art keywords
- pulse signal
- rotor
- generating means
- rotational position
- signal generating
- 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
- 238000010586 diagram Methods 0.000 description 3
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
Description
第１図は本考案の一実施例のブロツク図、第２
図は本考案の一実施例の要部の側面図及び平面図
、第３図は本考案の一実施例の要部の波形図、第
４図は本考案の一実施例の他の要部の波形図、第
５図は本考案の一実施例の要部の回路図である。
１…ロータ、２ａ〜２ｃ…巻線、３…ＦＧセン
サ、４…ＰＧセンサ、８…制御手段、９…プログ
ラマブルカウンタ、１０…ラツチ、１１…ＡＮＤ
回路、１３…２０進カウンタ、１４…切替信号生
成回路、１５…三相駆動回路。
Fig. 1 is a block diagram of an embodiment of the present invention;
The figures are a side view and a plan view of a main part of an embodiment of the present invention, Fig. 3 is a waveform diagram of a main part of an embodiment of the present invention, and Fig. 4 is another main part of an embodiment of the present invention. FIG. 5 is a circuit diagram of a main part of an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Rotor, 2a-2c... Winding, 3... FG sensor, 4... PG sensor, 8... Control means, 9... Programmable counter, 10... Latch, 11... AND
circuit, 13... 20-decimal counter, 14... switching signal generation circuit, 15... three-phase drive circuit.
Claims (1)
の供給路を順に切替えることにより該ロータを回
転させるモータを駆動するモータ駆動回路におい
て、 前記ロータの回転速度に応じた周波数のパルス
信号を発生する第１のパルス信号発生手段と、 前記ロータが予め決められた所定の回転位置に
達したときにパルス信号を発生する第２のパルス
信号発生手段と、 前記第２のパルス信号の出力パルス信号の入力
後、前記ロータの回転位置に応じて予め決められ
た所定の期間、前記第１のパルス信号発生手段の
パルス信号出力を停止させる制御手段と、 前記制御手段を介して前記第１のパルス信号発
生手段の出力パルス信号が入力され、前記第２の
パルス信号発生手段によりリセツトされると共に
、前記制御手段を介して入力された前記第１のパ
ルス信号発生手段の出力パルス信号をカウントし
、前記駆動信号の切替えタイミングに応じて予め
決められたカウント数毎にパルス信号を出力する
カウンタとを具備し、前記カウンタの出力パルス
信号により前記ロータの回転位置を検出し、前記
駆動信号の切替を行なう構成としてなるモータ駆
動回路。[Claims for Utility Model Registration] In a motor drive circuit that drives a motor that rotates a magnetized rotor by sequentially switching a supply path of a drive signal according to the rotational position of the rotor, the motor drive circuit according to the rotational speed of the rotor a first pulse signal generating means that generates a pulse signal at a predetermined frequency; a second pulse signal generating means that generates a pulse signal when the rotor reaches a predetermined rotational position; a control means for stopping the pulse signal output of the first pulse signal generating means for a predetermined period determined in advance according to the rotational position of the rotor after the input of the pulse signal; The output pulse signal of the first pulse signal generating means is inputted through the control means, and is reset by the second pulse signal generating means. and a counter that counts output pulse signals and outputs a pulse signal every predetermined count according to switching timing of the drive signal, and detects the rotational position of the rotor based on the output pulse signal of the counter. , a motor drive circuit configured to switch the drive signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989138400U JPH0377298U (en) | 1989-11-29 | 1989-11-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989138400U JPH0377298U (en) | 1989-11-29 | 1989-11-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0377298U true JPH0377298U (en) | 1991-08-02 |
Family
ID=31685501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989138400U Pending JPH0377298U (en) | 1989-11-29 | 1989-11-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0377298U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55136891A (en) * | 1979-04-11 | 1980-10-25 | Sony Corp | Brushless dc motor |
| JPS61189189A (en) * | 1985-02-16 | 1986-08-22 | Victor Co Of Japan Ltd | Drive circuit of commutatorless motor |
-
1989
- 1989-11-29 JP JP1989138400U patent/JPH0377298U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55136891A (en) * | 1979-04-11 | 1980-10-25 | Sony Corp | Brushless dc motor |
| JPS61189189A (en) * | 1985-02-16 | 1986-08-22 | Victor Co Of Japan Ltd | Drive circuit of commutatorless motor |
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