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參數(shù)資料
| 型號(hào)： | IM2000S |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | HIGH PERFORMANCE MICROSTEPPING STEP MOTOR CONTROLLER |
| 中文描述： | 高性能的微步進(jìn)電機(jī)控制器 |
| 文件頁數(shù)： | 3/16頁 |
| 文件大?。?/td> | 142K |
| 代理商： | IM2000S |
3
S e c t i o n 1
Int r oduc t ion t o t he IM 2 0 0 0 S
S e c t ion Ove r vie w
This section will introduce the user to the feature set provided by the IM2000S Microsteping controller ASIC. The
following subsections are contained:
!
The IM2000S Described
Features and Benefits
Block Diagram
!
!
T he IM 2 0 0 0 S
The IM2000S is a high performance microstepping step motor controller that
incorporates a sine/cosine signal generator, anti-resonance circuitry, PWM
current control and much more in one monolithic IC. The IM2000S combines
hardware intense functions together with innovative features to provide
designers with a powerful yet simple solution for their high volume OEM
products.
Never before has any motion product integrated all the digital control into one
monolithic IC. This high degree of integration can significantly reduce design
time as well as driver size.
Beyond the integration of a complete microstepping control system, the
IM2000S has unique features that give designers unprecedented control over
motor movement. These features include 14 selectable resolutions (in both
decimal and binary) that can be changed at any time without motor movement
interruption. There is no need to reset the controller. This allows the user to
rapidly move long distances, yet precisely position the motor at the end of
travel without the need or expense of a complex controller.
Another valuable feature is an “On Full Step” output which indicates when the motor is at an electrical full step. This
output can be used to reduce the overhead needed to track position when making long moves.
The development of proprietary circuits has minimized ripple current, while maintaining a 20 KHz chopping rate. This
prevents additional motor heating that is common with drivers requiring higher chopping rates. Now low inductance
stepper motors can be used to improve high speed performance and peak system efficiency.
The IM2000S needs only clock and direction inputs to control the motor and will interface directly to discrete bridges or
common monolithic bridge ICs.
Designers can now place drivers directly on their PC boards with all the necessary control in the IM2000S chip’s ultra
small 64 pin QFP package.
Size, price and time-to-market are three crucial aspects in today’s competitive markets and the IM2000S offers the ability
to reduce all three.
Figure 1.1: The IM2000S
(2.5 times actual size.)
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