Chen is in the OP put too amplifying circuit, so that the comb over current feedback loop with input resistance determined current roll, so FET drain current, a gate by the det
ermination circuit Ren V es. That fire is output 0P what constitutes fake blood circuit, with A, the potential of the inverting input terminal of the control to make it equal to zero. A zener diode D. And D, produce 9 VBijIU pressure measured object (DU gate T) of [h pressure clamp, the circuit is not to force abnormal voltage. R. It is limiting resistor to control the gate cast rb stream, so e, too to people (usually almost no electric current flows through).