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A New Generation of Hall Senso

消耗积分:5 | 格式:rar | 大小:162 | 2010-06-01

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80% of all current measurements within motor control are done with a shunt resistor. The voltage  drop across the shunt is converted to a digital signal with a delta-sigma modulator. Hall sensors are  mainly used in high current applications, where the power consumption inside the shunt resistor is  getting too big.  To generate the lowest overhead in development, the shunt and hall module should  just be exchangeable. Therefore, the hall sensor should provide a bit-stream output of a delta-sigma  modulator by maintaining low noise at a low price. The delta-sigma modulator ADS1208 from TI  makes this possible.
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