JPS6442554U - - Google Patents
Info
- Publication number
- JPS6442554U JPS6442554U JP13700487U JP13700487U JPS6442554U JP S6442554 U JPS6442554 U JP S6442554U JP 13700487 U JP13700487 U JP 13700487U JP 13700487 U JP13700487 U JP 13700487U JP S6442554 U JPS6442554 U JP S6442554U
- Authority
- JP
- Japan
- Prior art keywords
- drive
- circuit
- motor
- tray
- drive voltage
- 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
- 230000010355 oscillation Effects 0.000 claims description 3
- 230000007423 decrease Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Feeding And Guiding Record Carriers (AREA)
Description
第１図は本考案のトレイ駆動装置の実施例を示
す回路図、第２図は本考案のトレイ駆動装置のタ
イミングチヤート、第３図は本考案のトレイ駆動
装置の動作を説明するタイミングチヤート、第４
図は従来のトレイ駆動装置のブロツク図である。
６……直流モータ、７……駆動ベルト、８……
ギア、９……トレイ、１４……駆動回路、１５…
…発振回路、１６……制御回路、１７，１８……
オペアンプ、Ｑ１……ＮＰＮトランジスタ。
FIG. 1 is a circuit diagram showing an embodiment of the tray drive device of the present invention, FIG. 2 is a timing chart of the tray drive device of the present invention, and FIG. 3 is a timing chart explaining the operation of the tray drive device of the present invention. Fourth
The figure is a block diagram of a conventional tray drive device. 6...DC motor, 7...Drive belt, 8...
Gear, 9... Tray, 14... Drive circuit, 15...
...Oscillation circuit, 16...Control circuit, 17, 18...
Operational amplifier, Q1...NPN transistor.
Claims (1)
タと、この直流モータに駆動電圧を供給する駆動
回路と、この駆動回路の出力する前記駆動電圧レ
ベルを制御する制御回路と、前記直流モータ停止
前に一定繰り返し周波数のパルスを発生する発振
回路とを有し、前記制御回路は、前記直流モータ
停止前に前記発振回路の出力するパルスの繰り返
し周波数と同一の周期で、前記駆動回路の駆動電
圧レベルを増減することを特徴とするトレイ駆動
装置。 a tray, a DC motor that drives the tray horizontally, a drive circuit that supplies a drive voltage to the DC motor, a control circuit that controls the drive voltage level output from the drive circuit, and a control circuit that controls the drive voltage level to a certain level before stopping the DC motor. an oscillation circuit that generates pulses at a repetition frequency, and the control circuit increases or decreases the drive voltage level of the drive circuit at the same cycle as the repetition frequency of the pulses output by the oscillation circuit before stopping the DC motor. A tray drive device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13700487U JPS6442554U (en) | 1987-09-08 | 1987-09-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13700487U JPS6442554U (en) | 1987-09-08 | 1987-09-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6442554U true JPS6442554U (en) | 1989-03-14 |
Family
ID=31398042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13700487U Pending JPS6442554U (en) | 1987-09-08 | 1987-09-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6442554U (en) |
-
1987
- 1987-09-08 JP JP13700487U patent/JPS6442554U/ja active Pending
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