Automobile -used combination formula level four filter circuit

• Main Authors: SONG WEI, ZHANG LINGLU, CHEN YANMEI
• Format: Patent
• Language: English
• Published: 18.11.2015
• Subjects: BASIC ELECTRONIC CIRCUITRY; ELECTRICITY; IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS

The utility model relates to an automobile -used combination formula level four filter circuit, including level four filter circuit, first order filter circuit includes a common mode inductance and the first electric capacity parallelly connected with a common mode inductance signal output part, and second level filter circuit includes the 2nd common mode inductance and the second electric capacity and the third electric capacity that connect in parallel with the 2nd common mode inductance signal output part respectively, third level filter circuit includes the 3rd common mode inductance and respectively in parallelly connected fourth electric capacity and the 5th electric capacity of the 3rd common mode inductance signal output part, fourth stage filter circuit includes fourth common mode inductance and six electric capacity parallelly connected with fourth filter inductor signal output part. The utility model discloses filter circuit has satisfied the requirement of the target electromagnetic compatibility of state army, solves the electromagnetic compatibility problem of motor and electronic product for the interference that can restrain and prevent the low frequency end also can restrain and prevent the interference of high band.