The charge and discharge of the oscillating circuit can be judged by checking the voltage and current changes of the components.
In an oscillating circuit, the component voltage and current change over time.
When the oscillator circuit is in the charging state, the current flows from the power supply into the component, and the voltage rises; In the discharge state, electrons flow from the component back to the power supply, and the voltage is reduced.
Therefore, the charge and discharge state of the oscillating circuit can be judged by checking the voltage and current changes of the component.
If you want to determine the charge and discharge state of the oscillating circuit more accurately, you can use an oscilloscope to observe the waveform of voltage and current.
Generally, the charging state corresponds to the positive half-cycle voltage is greater than zero, and the current flows to the power supply; The discharge state corresponds to the positive half-cycle voltage is less than zero, and the current flows from the power supply into the element.
In addition, the charge and discharge time of the oscillating circuit can be calculated according to the oscillation frequency and component parameters.
The charge and discharge of the oscillating circuit can be judged by observing the voltage change at both ends of the capacitor.
1. According to the working principle of the oscillation circuit, when the capacitor is charged to the peak voltage, it starts to discharge until the capacitor voltage drops to the lowest voltage value, and then starts to charge, and so on. 2. In actual operation, the waveform of the voltage at both ends of the capacitor changing with time can be observed by instruments such as oscilloscope or multi-meter, and the charging and discharging state of the oscillation circuit can be judged. 3. In addition, if the frequency of the oscillation circuit is relatively high, professional high-frequency instruments can be used to measure and judge to ensure the normal operation of the circuit.
There are two main methods to judge the charge and discharge of an oscillating circuit. The first is through the observation of the oscillation waveform. When the charging time and discharge time are equal in the oscillation period, the waveform presents a symmetrical sine waveform, indicating that the circuit has reached a stable oscillation state. The second is judged by measuring the voltage changes at both ends of the capacitor. When the voltage changes at both ends of the capacitor no longer fluctuate and tend to be stable, it indicates that the circuit has reached a stable oscillation state. At this time, the charging time and discharge time are equal. You can deepen your knowledge in related fields and deepen your understanding through experimentation
The charge and discharge process of the oscillating circuit can be judged by observing the magnetic field changes of the capacitor and coil. Specifically, when the current flows from the positive plate to the negative plate of the capacitor, the capacitor discharges; Conversely, when the current flows from the negative plate of the capacitor to the positive plate, the capacitor is charged.
At the same time, when the current in the coil increases, the magnetic field increases; When the current in the coil weakens, the magnetic field weakens. Therefore, the charge and discharge process of the oscillating circuit can be judged according to the increase and decrease of the capacitor's charge and the increase and decrease of the coil's magnetic field.
The charge and discharge of the oscillating circuit can be judged by the voltage change on the capacitor. During the charging process, the voltage of the capacitor will gradually increase until the power supply voltage is reached.
If the voltage of the capacitor is measured at this time, it will be found that the voltage is gradually increasing.
When the capacitor voltage reaches a set threshold value, for example, the voltage on the capacitor reaches a certain limit value, it will cause the oscillation circuit to output a periodic signal.
During the discharge process, the voltage of the capacitor is gradually reduced until it reaches zero.
If the voltage of the capacitor is measured during discharge, it will be found that the voltage is gradually reduced. When the capacitor voltage drops below a set threshold, the charging process is restarted, and so on.
Charge and discharge can be judged according to the increase and decrease of the power of the capacitor, when the power is reduced, it is the discharge process, and when the power is increased, it is the charging process.
According to the enhancement and weakening of the coil magnetic field, it can be judged that when the magnetic field is enhanced, it is discharge, and the weakening is charging.