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參數(shù)資料
| 型號： | KA3084D |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 運(yùn)動控制電子 |
| 英文描述： | Bi-Directional DC Motor Driver |
| 中文描述： | BRUSHLESS DC MOTOR CONTROLLER, 1 A, PDSO22 |
| 封裝： | 0.300 INCH, SOP-22 |
| 文件頁數(shù)： | 9/14頁 |
| 文件大?。?/td> | 261K |
| 代理商： | KA3084D |
KA3084D
9
Application Informations
1. A DIAGRAM SUMMARIZING THE ENTIRE SYSTEM
Figure 1.
Figure 1 is a conceptual diagram of the KA3084D. It shows that it turns on or off depending on the signal of the hall sensor
used for sensing the rotor position of motor.
The AMP, G
M
(Feedback) and output blocks are circuits used to determine current gain of KA3084D.
Furthermore, HallIN represents the hall signal switch.
It supplies stable bias to each V
REG
block. The TSD block is a thermal shutdown circuit that protects the IC during an high
temperature inside the IC.
Moreover, FG. and PG. blocks output individual signals generated in the motor using the amplifier and comparator.
These signals transmit motor speed and position data to controller of external servo etc. for their control.
2. CURRENT CONTROL
Figure 2 simplifies figure 1.
The supplied I
O
current drives the motor and the Ic current controls the motor speed.
Figure 3 is a graph of I
CTL
vs. I
O
.
Hall_IN
V / I
Converter
AMP.
DRIVE
V
REG
TSD
V
CTL
I
O
R2
I
f
4I
C
R1
I
C
I
C
4I
C
2I
C
FG_IN
PG_IN
FG_OUT
PG_OUT
AMP &
COMP
AMP &
COMP
HALL+
HALL
G
M
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相關(guān)代理商/技術(shù)參數(shù) |
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| KA3086D | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:2-Phase BLDC Motor Driver |
| KA308-76T | 制造商:Advanced Interconnect 功能描述: |
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