fizziks said:Just what I thought it was. Thank you very much.
Input impedance is the measure of resistance to an electrical signal as it enters a circuit or device. It is a crucial factor in determining the performance and functionality of electronic systems.
Low-pass and high-pass filters are two types of electronic circuits used to filter out specific frequencies from an input signal. A low-pass filter allows low-frequency signals to pass through, while blocking high-frequency signals. A high-pass filter does the opposite, allowing high-frequency signals to pass through and blocking low-frequency signals.
The input impedance of a circuit or device can affect the performance of low-pass and high-pass filters in various ways. A low input impedance can cause signal loss and distortion in a low-pass filter, while a high input impedance can increase the gain and sensitivity of a high-pass filter.
The input impedance of a circuit or device can be influenced by various factors such as the type of components used, the design of the circuit, and the frequency of the input signal. Additionally, the presence of other components or devices in the circuit can also affect the input impedance.
The input impedance of a circuit or device can be measured using specialized equipment such as an impedance analyzer. This equipment applies a known voltage or current to the circuit and measures the resulting current or voltage to calculate the input impedance. Alternatively, the input impedance can also be estimated using circuit analysis techniques and mathematical calculations.