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參數(shù)資料
| 型號： | PSD513B1 |
| 英文描述： | Field Programmable Microcontroller Peripherals(可編程邏輯，16K位SRAM,40個可編程I/O,通用PLD有61個輸入) |
| 中文描述： | 現(xiàn)場可編程微控制器外圍設(shè)備（可編程邏輯，16K的位的SRAM，40余個可編程輸入/輸出，通用PLD的有61個輸入） |
| 文件頁數(shù)： | 3/25頁 |
| 文件大小： | 186K |
| 代理商： | PSD513B1 |
PSD3XX – Application Note 042
4-299
Stepper Motor
Operation
(Cont.)
Phase timing for a stepper motor could be designed by either a combination of logic and
linear electronics or by some stepper motor control IC’s such as the L297 stepper motor
controller. Figure 4 shows a block diagram of a stepper motor control and the L297 is used
as the stepper motor control IC. The L297 provides control to an amplifier in the current
mode. The chop frequency for the L297 is set to 20KHz. Chop frequency is used to regulate
the amount of current in the motor windings. The current reference to the motor windings is
set by a pair of resistors. The L297 is configured to FULL STEP mode. The
ENABLE/DISABLE and axis DIRECTION control are controlled from PORT B of the
PSD503B1. An electrical schematic using the L297 is given in Figure 13.
PHASE A
CONTROL
PHASE B
CONTROL
BRIDGE
CONTROL
SENSE PHASE 1
SENSE PHASE 2
PHASE B
PHASE A
POWER
BRIDGE
CURRENT
SENSE
DIRECTION
CLOCK
ENABLE
Figure 4. Simplified Block Diagram for a Stepper Motor Control
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PSD513B1-12J | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Field-Programmable Peripheral |
| PSD513B1-12JI | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Field-Programmable Peripheral |
| PSD513B1-12LI | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Field-Programmable Peripheral |
| PSD513B1-12U | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Field-Programmable Peripheral |
| PSD513B1-12UI | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Field-Programmable Peripheral |
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