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參數(shù)資料
| 型號(hào)： | AN6657 |
| 廠商： | PANASONIC CORP |
| 元件分類： | 運(yùn)動(dòng)控制電子 |
| 英文描述： | Micromotor Forward/ Reverse Electronic Governors |
| 中文描述： | BRUSH DC MOTOR CONTROLLER, 0.7 A, PDIP16 |
| 封裝： | 0.300 INCH, PLASTIC, DIP-16 |
| 文件頁數(shù)： | 6/6頁 |
| 文件大小： | 71K |
| 代理商： | AN6657 |
ICs for Motor
AN6657, AN6657S
Current Limiting Function
The current limitting function detects the voltage drop of
the torque control resistance r
1
, operates the PNP transistor,
and controls the input voltage of the amplifier in the IC to
limit the current.
Limiting the current can reduce the useless current at start
and motor lock time and prevent the supply voltage from
dropping.
The limited current I
Lim
is calculated by the following
expression.
V
Lim
r
1
V
Lim
: V
BEON
Voltage < 0.6V
When r
1
= 1.2
, from the expression (8) I
Lim
is ;
= 0.6V
1.2
=
I
Lim
I
Lim
= 500mA
All Temperatures
T
M
(Torque)
Fig. 3. r
1
Temperature Characteristics = Ra Tempera-
ture Characteristics
Temperature Compensation of Motor Speed
For the normally used motor with core, the temperature
compensation of the motor speed can be done by using 3,900
r.p.m/C metal coated or coiled resistor as the torque control
resistance r
1
, and metal coated resistor with a positive
temperature coefficient of about 2,000r.p.m/C as the speed
control resistance r
4
.
(8)
N
800
600
400
200
0
P
D
40
80
120
160
Ambient Temperature Ta (C)
P
D
– Ta
R
40
80
120
160
Load Torque T (g – cm)
r.p.m. Load Torque
0
4000
2000
00
I
Characteristics Curve
AN6657S
AN6657
FF/REW
V
CC
= 9V
V
CC
= 6V
Constant
Speed
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AN6657S | Micromotor Forward/ Reverse Electronic Governors |
| AN6663S | Bridge Drivers |
| AN6663SP | Bridge Drivers |
| AN6701 | Switch Mode Power Supply; Output Power:1512W; No. of Outputs:1; Output 1 VDC :360VDC; Output Current 1:4.2A; Power Supply Mounting:PC Board; Leaded Process Compatible:Yes; Output Current:4.2A; Output Power Max:1512W RoHS Compliant: Yes |
| AN6701S | Temperature Sensor IC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AN6657/AN6657S | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:AN6657. AN6657S - Micromotor Forward/ Reverse Electronic Governors |
| AN6657S | 制造商:PANASONIC 制造商全稱:Panasonic Semiconductor 功能描述:Micromotor Forward/ Reverse Electronic Governors |
| AN6658K | 制造商:Panasonic Industrial Company 功能描述:IC |
| AN666 | 制造商:SILABS 制造商全稱:SILABS 功能描述:USAGE GUIDE FOR SIM3U1XX, SIM3C1XX, AND SIM3L1XX DMA AND DTM MODULES |
| AN6660 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:DC Motor Controller/Driver |
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