2 results about "Impedance network" patented technology

The invention discloses a time division multiplexing multi-level circuit, which comprises switching tubes, an impedance network, a detection and control unit and a bus, and is characterized in that the switching tubes are respectively a first switching tube, a second switching tube, a third switching tube, a fourth switching tube and a fifth switching tube; the impedance networks comprise a first impedance network, a second impedance network, a third impedance network and a fourth impedance network; a second switch tube is connected with the first impedance network in parallel, a third switch tube is connected with the second impedance network in parallel, a fourth switch tube is connected with the third impedance network in parallel, and a fifth switch tube is connected with the fourth impedance network in parallel. According to the time-division multiplexing multi-level circuit and the insulation impedance detection method, the precision of the insulation impedance detection range can be improved in a wider range, impedance networks artificially added for calculating the insulation impedance in the current market are reduced, switching tubes for impedance switching can also be reduced, and the system cost is reduced while the performance is improved.