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參數資料
| 型號： | MSK3020 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | H-BRIDGE MOSFET POWER MODULE |
| 中文描述： | H橋MOSFET功率模塊 |
| 文件頁數： | 4/6頁 |
| 文件大小： | 345K |
| 代理商： | MSK3020 |
4
Rev. A 7/00
USING CURRENT SENSING MOSFETS:
A MOSFET transistor is constructed of many individual MOSFET cells connected in parallel. They share the current total
very evenly. If one of these cells are brought out to a pin, that cell will pass an accurate proportional amount of the total
current. This current can be used as a low power sense of the whole current without passing that whole current through a
sensing device like a resistor. This small current multiplied by the ratio specified on the data sheet equals the whole current.
There are several methods of working with the sense function to obtain the actual current.
1. Virtual Earth Sensing
The disadvantage is amplifying a current swing of 10 amps in 100 nSec to produce a 5V output means the op amp has to
slew 50V/μSec. This is beyond the capabilities of a lot of op amps.
2. Resistor Sensing
The disadvantage is R
T
voltage must be above the offset voltage of the op amp and R
T
must be much less than R
DS(ON)
of
the sensing cell or temperature shifts will affect accuracy.
APPLICATION NOTES, CONT.
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相關代理商/技術參數 |
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|---|---|
| MSK35 | 制造商:Marathon Special Products 功能描述:END BRACKET SECTIONAL TERMINAL BLOCK 制造商:MARATHON 功能描述:END BRACKET, SECTIONAL TERMINAL BLOCK 制造商:MARATHON 功能描述:END BRACKET, SECTIONAL TERMINAL BLOCK; Series:MIK 5; Accessory Type:End Bracket; For Use With:Sectional Terminal Blocks; Body Material:Polyamide; Color:Gray; Current Rating:40A; Depth:6mm; Height:38mm; Line Wire Range:#22-#10 AWG ;RoHS Compliant: Yes 制造商:Marathon Special Products 功能描述:Terminal Block |
| MSK3554 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:HIGH SPEED, WIDEBAND OPERATIONAL AMPLIFIER |
| MSK3554B | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:HIGH SPEED, WIDEBAND OPERATIONAL AMPLIFIER |
| MSK35W | 制造商:Marathon Special Products 功能描述: |
| MSK4200 | 制造商:MSK 制造商全稱:M.S. Kennedy Corporation 功能描述:75 VOLT 5 AMP MOSFET H-BRIDGE PWM MOTOR DRIVER/AMPLIFIER |
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