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参数资料
| 型号： | H-38-11 |
| 厂商： | Bourns Inc. |
| 文件页数： | 34/73页 |
| 文件大小： | 0K |
| 描述： | HDWR NUT MOUNTING FOR ECW ENCODR |
| 产品变化通告： | H-38-11 Hardware Change 26/Jul/2010 |
| 标准包装： | 1,000 |
| 产品目录页面： | 2575 (CN2011-ZH PDF) |
| 配用： | ECW1DB24BC0024-ND - ENCODER DIGITAL CONT 24 CPR ECW1JB24BC0024-ND - ENCODER DIGITAL CONT 24 CPR |
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Application Notes
RC Frequency Control (Uncalibrated)
A panel control can be used as a frequency selector
in a square-wave generator. In this application, the
panel control is con?gured as a rheostat with wiper
current highest at high frequencies (low R). See
Figure 15.
Trace Position
Used in vertical position control or trace position
control for oscilloscope ampli?ers, the panel control
wiper current is nil in the center, but increases
toward each end. Unless limited by speci?cation,
CRV may impair adjustability near the ends of
rotation. Both panel controls are normally controlled
with a single shaft. See Figure 17.
Figure 15: RC Frequency Control Circuit
Universal Motor Speed Control
In this application, the panel control is normally a
wirewound in a rheostat con?guration capable of
substantial wiper current and power dissipation. For
higher power motors, the potentiometer is
augmented by an SCR. Variable rate of speed change
can be accomplished by non-linear potentiometers.
Bi-directional speed controls can be accomplished by
the addition of a switch. See Figure 16.
Figure 17: Trace Position Circuit
CRT Focus
In this application, the panel control is used as a
focus control for a cathode ray tube (CRT). With no
DC load present, there is also no wiper current.
Attention must be given to the high voltage rating of
the control as it may have several hundred volts
across the element and operate at several thousand
volts from ground. See Figure 18.
Figure 16: Motor Speed Control Circuit
Figure 18: CRT Focus Circuit
33
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相关代理商/技术参数 |
参数描述 |
|---|---|
| H-381-14 | 制造商:ETC MOLEX-INACTIVE 功能描述:Cross Referenced to MOLEX - Part: MOL19193-0330 |
| H-381-38 | 制造商:ETC MOLEX-INACTIVE 功能描述:Cross Referenced to MOLEX - Part: MOL19193-0331 制造商:Molex 功能描述:Ring Tongue Terminal (1/0)AWG 48.77mm 21.34mm Electro-Tin Bag |
| H-38-14 | 功能描述:电位计工具及硬件 H-038 HARDWARE RoHS:否 制造商:Vishay/Spectrol 产品:Adapter Kit |
| H-38-15 | 功能描述:电位计工具及硬件 HARDWARE - NUT RoHS:否 制造商:Vishay/Spectrol 产品:Adapter Kit |
| H-381-56 | 制造商:ETC MOLEX-INACTIVE 功能描述:Cross Referenced to MOLEX - Part: MOL19193-0333 |
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