If the active filter circuit is not displaying current and voltage, it may be caused by the following problems:
1. Connection Problems: Check if the circuit is connected correctly. Active filter circuits usually have multiple components and power supplies, and if one of the components or power supplies is not connected correctly, it may cause the current and voltage display to be off.
2. Monitoring equipment issues: When using circuit test instruments such as digital multimeters or oscilloscopes, you need to make sure that they are working properly and set up correctly. Otherwise, the circuit test results may be inaccurate and may even display incorrectly.
3. Component issues: Check the components in the circuit for damage or aging. For example, damaged or aged components such as resistors, capacitors, and inductors may affect the operation of the circuit, resulting in improper current and voltage display.
Explanation:
Active filter circuits are circuit designs based on amplifiers and filters used to filter and amplify specific electrical signals. Current and voltage are two important electrical quantities in active filter circuits that are used to monitor and adjust the operating condition of the circuit. When these electrical quantities are not properly displayed, it will not be possible to effectively monitor the operating state of the circuit or to properly adjust and optimize the circuit.
Expand:
Active filter circuits are complex circuit systems that contain multiple components, power supplies, and connections. Therefore, when designing and testing active filter circuits, it is necessary to double-check that each component and connection is correct and to ensure that the test equipment works properly. In addition, the components of active filter circuits tend to deteriorate after long-term use, so they need to be repaired and replaced regularly to ensure that the circuits are working properly. If your circuit test equipment is not professional equipment, it is recommended to learn and understand how to set the test parameters correctly beforehand to avoid deviation of the test results.