参数资料
型号: SG2731
厂商: Microsemi Corporation
英文描述: DC MOTOR PULSE WIDTH MODULATOR
中文描述: 直流电机脉宽调制器
文件页数: 1/5页
文件大小: 140K
代理商: SG2731
SG1731/SG2731/SG3731
4/90 Rev 1.3 9/99
Copyright
1999
L
IN
F
IN
ITY
Microelectronics Inc.
Garden
Grove,
FAX: (714) 893-2570
11861 Western Avenue
CA
92841
1
(714) 898-8121
DC MOTOR PULSE WIDTH MODULATOR
FEATURES
±
3.5V to
±
15V control supply
±
2.5V to
±
22V driver supply
Dual 100mA source/sink output
drivers
5KHz to 350KHz oscillator range
High slew rate error amplifier
Adjustable deadband operation
Digital SHUTDOWN input
HIGH RELIABILITY FEATURES
- SG1731
Available to MIL-STD-883
LMI level “S” processing available
BLOCK DIAGRAM
DESCRIPTION
The SG1731 is a pulse width modulator circuit designed specifically for DC motor
control. It provides a bi-directional pulse train output in response to the magnitude
and polarity of an analog error signal input. The device is useful as the control
element in motor-driven servo systems for precision positioning and speed control,
as well as in audio modulators and amplifiers using carrier frequencies to 350 KHz.
The circuit contains a triangle waveform oscillator, a wideband operational amplifier
for error voltage generation, a summing/scaling network for level-shifting the
triangle waveform, externally programmable PWM comparators and dual
±
100mA,
±
22V totem pole drivers with commutation diodes for full bridge output. A
SHUTDOWN terminal forces the drivers into a floating high-impedance state when
driven LOW. Supply voltage to the control circuitry and to the output drivers may be
from either dual positive and negative supplies, or single-ended.
相关PDF资料
PDF描述
SG2731J DC MOTOR PULSE WIDTH MODULATOR
SG3731 DC MOTOR PULSE WIDTH MODULATOR
SG3731J DC MOTOR PULSE WIDTH MODULATOR
SG3731N DC MOTOR PULSE WIDTH MODULATOR
SG2731N DC MOTOR PULSE WIDTH MODULATOR
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SG278 制造商:KODENSHI 制造商全称:KODENSHI KOREA CORP. 功能描述:PhotoInterrupter(Transimissive)