Power line conduction interference signal detection circuit suitable for field electromagnetic compatibility detection
A technology for conducting interference and signal detection, applied in the direction of electromagnetic field characteristics, etc., can solve the problems of inconvenient on-site electromagnetic compatibility detection and high cost, and achieve the effect of miniaturization and low manufacturing cost.
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[0019] The present invention will be further described in detail below in conjunction with the accompanying drawings.
[0020] refer to figure 2 As shown, the present invention designs a power line conduction interference signal detection circuit suitable for on-site electromagnetic compatibility detection. The power line conduction interference signal detection circuit includes a power plug, a second-order passive high-pass filter, a 10dB attenuator and an analog digital conversion circuit.
[0021] The power plug is inserted into a 220V50Hz power socket, and the positive and negative poles of the power supply are connected to the second-order passive high-pass filter.
[0022] see Figure 3A As shown, for the convenience and safety of use, the power line conduction interference signal detection circuit designed by the present invention is packaged in an insulating outer cover, the power plug is arranged on one panel of the insulating outer cover, and the positive terminal...
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