Current-2 given Voltage-2 (G-Parameter) Calculator

G-Parameter Formula:

\[ I_2 = \frac{V_2 - (g_{21} \times V_1)}{g_{22}} \]

Voltage Port 2 (V₂):

Volt

G21 Parameter (g₂₁):

(unitless)

Voltage Port 1 (V₁):

Volt

G22 Parameter (g₂₂):

Ohm

Current in Port 2 (I₂):

Unit Converter ▲

Unit Converter ▼

From:	To:

1. What is the G-Parameter Equation?

The G-Parameter equation calculates the current in port 2 (I₂) based on voltage measurements and G-parameters in a two-port network. It provides an accurate assessment of current flow in electronic circuits using the hybrid inverse parameter representation.

2. How Does the Calculator Work?

The calculator uses the G-Parameter equation:

\[ I_2 = \frac{V_2 - (g_{21} \times V_1)}{g_{22}} \]

Where:

\( I_2 \) — Current in port 2 (Ampere)
\( V_2 \) — Voltage at port 2 (Volt)
\( g_{21} \) — Open circuit voltage ratio (unitless)
\( V_1 \) — Voltage at port 1 (Volt)
\( g_{22} \) — Input impedance (Ohm)

Explanation: The equation calculates the current flowing through port 2 by considering the voltage difference between ports and the circuit's G-parameters.

3. Importance of Current Calculation

Details: Accurate current calculation is crucial for analyzing two-port networks, designing electronic circuits, and ensuring proper current flow in various electrical applications.

4. Using the Calculator

Tips: Enter voltage values in volts, G21 parameter (unitless), and G22 parameter in ohms. G22 parameter must not be zero to avoid division by zero.

5. Frequently Asked Questions (FAQ)

Q1: What are G-parameters in two-port networks?
A: G-parameters (hybrid inverse parameters) describe the relationship between voltages and currents in a two-port network, with g₂₁ representing open-circuit voltage ratio and g₂₂ representing input impedance.

Q2: When should this equation be used?
A: This equation is used when analyzing two-port networks where the output current needs to be calculated based on known voltages and G-parameters.

Q3: What are typical values for G-parameters?
A: G-parameters vary depending on the specific circuit configuration. g₂₁ is typically a dimensionless ratio, while g₂₂ has units of impedance (ohms).

Q4: Are there limitations to this equation?
A: The equation assumes linear circuit behavior and may not be accurate for non-linear circuits or circuits with time-varying parameters.

Q5: Can this be used for AC circuit analysis?
A: Yes, but the parameters become complex numbers representing both magnitude and phase relationships in AC circuits.