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Issue:
Design of programmable precise power module
Author(s):
LONG Siyu
,
LIN Jianhui
,
MENG Jinsong(tractionpowernationalkeylab.
,
SOUTHWEST Jiaotonguniversity
,
CHENGDU 610031
,
china)
Pages:
25
-
27
Year:
2008
Issue:
1
Journal:
Practical Measurement Technology
Keyword:
应变测试
;
可编程电压基准
;
激励源选择电路
;
恒流源
;
恒压源
;
Abstract:
为了解决在应变测量中需要的高精度、低干扰并具有相对大的驱动能力的激励源产生的问题。采用可编程基准源和驱动两级电路,通过可编程的DAC生成电压基准,再通过驱动电路,程控选择电压激励源和电流激励源的生成和输出。所设计的程控精密激励源具有体积小、精度高、功耗低、配置灵活的特点。实际应用表明,本设计达到了技术方案要求并已成功应用于实际的应变测量之中。
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