Debugging of LC Oscillation Circuit

Since the selection of oscillation circuit parameters ignores many minor factors, especially the discreteness of transistor parameters, the selected components must be tested and adjusted after being assembled according to the circuit to achieve the predetermined indicators. Common faults and troubleshooting methods during commissioning are shown in Table 5.3-2.

Note: Parasitic oscillation is an undesirable oscillation. If the parasitic oscillation occurs at a frequency much higher than the operating frequency, it is called an ultra-high-step parasitic oscillation. On the contrary, if the parasitic oscillation occurs at a frequency much lower than the operating frequency, it is called a low-frequency parasitic oscillation.