Determining the voltage of the individual components in a circuit usually requires circuit analysis or measurement using a test instrument. Here are some common methods:
Use basic circuit analysis: For simple circuits, basic circuit analysis methods such as Kirchhoff's law and Ohm's law can be used to calculate the voltages of individual components. This typically involves simplifying the circuit and then applying the principles of circuit analysis to calculate the voltage value.
Measuring with an oscilloscope: An oscilloscope is a commonly used electronic test instrument that can be used to measure voltage signals. By connecting the oscilloscope's probes to different locations in the circuit, the voltage values of the individual components can be measured directly.
Measure with a multimeter: A multimeter can often be used to measure the voltage of the individual components in a circuit. The voltage of the individual components can be measured by selecting the appropriate voltage measurement gear and connecting the test leads to different locations in the circuit.
Use analog circuit software: For complex circuits, you can use professional analog circuit software, such as SPICE software, to perform circuit analysis. This method can help determine the voltages of the individual components in a circuit and can simulate a variety of complex circuit behaviors.
The above methods can be selected according to the complexity of the circuit and the actual situation to determine the voltage of each component in the circuit.