Ex. 95. Figure 95 shows a signal-conditioning circuit. The sensor supplies a voltage between zero and 48 VDC. An Analog Input Unit (AIU) has a voltage input range of zero to 18 VDC. Determine the minimum values of R1 and R2 if the power rating of each resistor is 0.25 watts.

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Ex. 95. Figure 95 shows a signal-conditioning circuit. The sensor supplies a voltage between zero and 48 VDC. An Analog Input Unit (AIU) has a voltage input range of zero to 18 VDC. Determine the minimum values of R1 and R2 if the power rating of each resistor is 0.25 watts. 

Vin = I(R, + R2)
%3D
Vin
Signal Conditioning Circuit
R1
Sensor
VR1
Vout
AIU
Analog Input Unit
VR1
R2
Van = Vim
Vout
R1 + R2
Gnd
Figure 95
Transcribed Image Text:Vin = I(R, + R2) %3D Vin Signal Conditioning Circuit R1 Sensor VR1 Vout AIU Analog Input Unit VR1 R2 Van = Vim Vout R1 + R2 Gnd Figure 95
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