Hello Guys,
I am struggling to simulate and understand below circuit but unable to understand it.
Could anyone help me out ?
Circuit Explanation -
In place of R6, R5 i have to use humidity sensor. So i consider it 56 ohm resistor.
R3, R4 is bridge resistance.
My circuit understanding is - U2 is differential amplifier with gain of R9/R8.
I do not know how U1 is working without any feedback component.
Could any one help me to understand this circuit ?
Ltspice file is attached herewith.
I am struggling to simulate and understand below circuit but unable to understand it.
Could anyone help me out ?
Circuit Explanation -
In place of R6, R5 i have to use humidity sensor. So i consider it 56 ohm resistor.
R3, R4 is bridge resistance.
My circuit understanding is - U2 is differential amplifier with gain of R9/R8.
I do not know how U1 is working without any feedback component.
Could any one help me to understand this circuit ?
Ltspice file is attached herewith.
Attachments
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