Summary:There are four main methods for measuring the quality of chip capacitance, which...
There are four main methods for measuring the quality of chip capacitance
, which are composed of a small part of chip capacitance. The circuit measurement method of chip capacitance is briefly discussed.
Method 1: The resistance value of the general chip capacitor is infinite. Replace it with an abnormal resistance value. The capacity becomes smaller and the multimeter cannot be measured. Replace it directly.
Method 2: The safe method is to use the two poles of the multimeter to ground and the other needle to measure the two ends of the capacitor and react to the short circuit respectively.
Method 3: If the chip capacitance is short-circuited, it can be judged by online measurement with a multimeter. If the circuit is open, because the capacitance is too small to be measured with a multimeter, you can use a pen to connect the 220V live wire, put the pin of the chip capacitor on the cap, and check whether the neon bulb is shining and the luminous capacitance is good. Otherwise, disconnect the circuit. 220V voltage, but not in the board experiment.
Method 4: The resistance value is infinite, the resistance value is zero call difference, and other values should have some small changes.