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3款驱动器提升了步进电机性能

关键词:AutoTune技术 DRV8880和DRV8881 DRV8885双极步进电机驱动器

时间:2016-01-15 14:33:20      来源:中电网

 
国际即时新闻(原文:英文)

Three drivers add to stepper motor performance

Three drivers from Texas Instruments simplify spinning motors, claims the company. Two have the company’s AutoTune technology to eliminate stepper motor tuning and two integrate current sensing to support differentiated 3D printers, robotics, factory automation equipment, currency-counting machines and more.
The company’s proprietary tuning technology on the DRV8880 and DRV8881 eliminates the time-consuming, iterative process of manual tuning. On-chip intelligence dynamically monitors the motor’s performance under varied conditions over its lifetime and adjusts decay settings appropriately. This makes it possible to develop motors that run quietly and efficiently despite changes in motor properties, supply voltage, load and torque, says the company.
For were stability and longevity are not critical, the DRV8885 bipolar stepper motor driver has integrated current sensing. The company has eliminated two external sense resistors to regulate the current to the motor, saving up to 20% board space and simplifying routing compared to competing devices, claims the company.
The DRV8880 and DRV8881 are available now in 28-pin, very thin, quad flat, no-lead (WQFN) and heat-sink thin-shrink small-outline packages (HTSSOP). The DRV8885 is available now in a 24pin HTSSOP.
DRV8880EVM, DRV8881EEVM (for phase/enable interface), DRV8881PEVM (for PWM interface) and DRV8885EVM evaluation modules are also available. Each features an onboard MSP430 microcontroller, for a cost-effective platform, claimed to speed development and time to market.








中文自动翻译,供参考

3款驱动器提升了步进电机性能

德州仪器(TI)三位车手简化旋转电机,称该公司。有两个公司的自动调谐技术,以消除步进电机的调整和两个集成电流感应,支持差异化的3D打印机,机器人,工厂自动化设备,货币计数机等等。

该公司专有的调音技术的DRV8880和DRV8881取消了手动调整的耗时的,反复的过程。片上智能动态监测变化的条件在其生命周期下,电机的性能和适当地调整衰减设置。这使得开发,尽管改变电机的性能,电源电压,负载和扭矩安静,高效运行的电机表示,该​​公司。

为是稳定性和寿命不是关键的,该DRV8885双极步进电动机驱动器集成电流感测。该公司先后淘汰两个外部检测电阻器来调节电机的电流,节省高达20%的电路板空间,简化了路由相比同类器件,声称该公司。

该DRV8880和DRV8881现已28引脚,非常薄,四方扁平无引线(WQFN)和散热器薄小外形封装(HTSSOP)。该DRV8885现在可在一个24针HTSSOP。

DRV8880EVM,DRV8881EEVM(相位/启用接口),DRV8881PEVM(用于PWM接口)和DRV8885EVM评估模块也可以。每间都设有一个板载MSP430微处理器,具有成本效益的平台,声称要加快开发和上市时间。

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