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MSP1121
- 两线制电流 温湿度变送器原理图，MSP1221的PWM和XTR115
MSP1121
- 两线制电流 温湿度变送器原理图，MSP1221的PWM和XTR115-Two-wire current temperature and humidity transmitter schematic, MSP1221 the PWM and XTR115
a
- PWM经过RC滤波产生电压,经过XTR115产生4-20mA电流输出,要点是XTR115的电压输入问题,自身为两线制,+5V输出提供不了较大电流,需要用DCDC,RC滤波采用钽电容和4.7k-4.9k的低温漂电阻能得到较高线形度,PWM输出为AVR单片机16位,模式15,不分频-PWM voltage generated through RC filter, after XTR115 have 4-20mA current output
pcb_rules
- 内容有：0欧姆电阻作用,LC,RC滤波电路设计,PCB铜箔厚度、线宽和电流表,Total_etch_path_manhattan,电学计算公式,华硕内部的PCB设计规范，大家可以看一下-Are: the role of 0-ohm resistors, LC, RC filter circuit design, PCB copper foil thickness, width and ammeter, Total_etch_path_m
yanibiansongqiyuanlitu
- 压力变送器原理图，这个是实际产品中使用的原理图，将压力变换成4~20ma电流-Pressure transmitter schematic, this is the actual product used in the diagram, the pressure to transform into a 4 ~ 20ma current
35471280a
- XTR115 current ring for new products are of great help