Used in conjunction with multimeters FET Vp Vas checker

Chen is in the operational amplifier circuit, utilizing a feedback loop with input resistance that determines the current roll-off. The FET drain current is controlled by the determination circuit, which provides the necessary voltage. The output constitutes a fake blood circuit, where the potential at the inverting input terminal is controlled to maintain a value of zero. A Zener diode produces a 9V reference voltage for the measured object. The pressure clamp circuit prevents the application of abnormal voltage. A limiting resistor is used to control the gate current, ensuring minimal current flow.

The described circuit involves an operational amplifier (op-amp) configured to achieve a specific gain and feedback mechanism, which is crucial for precise control in applications such as biomedical instrumentation. The feedback loop is designed using a Field Effect Transistor (FET), where the input resistance plays a pivotal role in stabilizing the circuit's performance by determining the roll-off characteristics of the current.

The FET drain current is modulated through a determination circuit, which ensures that the output voltage remains stable and accurately reflects the input conditions. This method is particularly useful in simulating biological signals, such as those found in fake blood circuits, where the output must closely mimic physiological responses.

The inclusion of a Zener diode serves a dual purpose: it provides a stable reference voltage of 9V, which is essential for the accurate measurement of pressure in the circuit, and it protects the circuit from voltage spikes that could lead to malfunction or damage. The pressure clamp is integral in ensuring that the circuit operates within safe voltage levels, thereby enhancing reliability.

A limiting resistor is strategically placed to control the gate current, preventing excessive current flow that could lead to component failure. This resistor ensures that the FET operates in its optimal region, allowing for efficient signal processing with minimal power loss. The overall design emphasizes precision, stability, and safety, making it suitable for sensitive applications in electronic instrumentation. 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).