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參數(shù)資料
| 型號(hào)： | MSA260 |
| 廠商： | Apex Microtechnology Corporation |
| 英文描述： | PULSE WIDTH MODULATION AMPLIFIER |
| 中文描述： | 脈寬調(diào)制放大器 |
| 文件頁(yè)數(shù)： | 1/5頁(yè) |
| 文件大小： | 402K |
| 代理商： | MSA260 |
APEX MICROTECHNOLOGY CORPORATION TELEPHONE (520) 690-8600 FAX (520) 888-3329 ORDERS (520) 690-8601 EMAIL prodlit@apexmicrotech.com
1
FEATURES
LOW COST
HIGH VOLTAGE - 450 VOLTS
HIGH OUTPUT CURRENT - 20 AMPS
9kW OUTPUT CAPABILITY
VARIABLE SWITCHING FREQUENCY
IGBT FULL BRIDGE OUTPUT
APPLICATIONS
BRUSH MOTOR CONTROL
MRI
MAGNETIC BEARINGS
CLASS D SWITCHMODE AMPLIFIER
DESCRIPTION
The MSA260 is a surface mount constructed PWM amplifier
that provides a cost effective solution in many industrial applica-
tions. The MSA260 offers outstanding performance that rivals
many much more expensive hybrid components. The MSA260
is a complete PWM amplifier including an oscillator, comparator,
error amplifier, current limit comparators, 5V reference, a smart
controller and a full bridge IGBT output circuit. The switching
frequency is user programmable up to 50 kHz. The MSA260 is
built on a thermally conductive but electrically insulating substrate
that can be mounted to a heatsink.
EQUIVALENT CIRCUIT DIAGRAM
58-PIN DIP
PACKAGE STYLE KC
TYPICAL APPLICATION
TORQUE MOTOR CONTROL
With the addition of a few external components the MSA260
becomes a motor torque controller. In the MSA260 the source
terminal of each low side IGBT driver is brought out for current
sensing via R
S
A and R
S
B. A1 is a differential amplifier that
amplifies the difference in currents of the two half bridges. This
signal is fed into the internal error amplifier that mixes the cur-
rent signal and the control signal. The result is an input signal
to the MSA260 that controls the torque on the motor.
EXTERNAL CONNECTIONS
VIEW FROM
COMPONENT SIDE
R
OSC
R
RAMP
+
SINGLE
POINT
GND
C3
C1
C2
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MSA260KC | 功能描述:特殊用途放大器 Pulse Width Modulation 450V 20A RoHS:否 制造商:Texas Instruments 通道數(shù)量:Single 共模抑制比（最小值）: 輸入補(bǔ)償電壓: 工作電源電壓:3 V to 5.5 V 電源電流:5 mA 最大功率耗散: 最大工作溫度:+ 70 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-20 封裝:Reel |
| MSA-2743 | 制造商:AGILENT 制造商全稱:AGILENT 功能描述:Cascadable Silicon Bipolar Gain Block MMIC Amplifier |
| MSA-2743-BLK | 制造商:AGILENT 制造商全稱:AGILENT 功能描述:Cascadable Silicon Bipolar Gain Block MMIC Amplifier |
| MSA-2743-TR1 | 制造商:AGILENT 制造商全稱:AGILENT 功能描述:Cascadable Silicon Bipolar Gain Block MMIC Amplifier |
| MSA-2743-TR2 | 制造商:AGILENT 制造商全稱:AGILENT 功能描述:Cascadable Silicon Bipolar Gain Block MMIC Amplifier |
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