methodsofanalysis-psut：方法分析-陣發(fā)性室上性心動(dòng)過速-在線瀏覽
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【正文】 Steps of Nodal Analysis 1. Choose a reference (ground) node. 2. Assign node voltages to the other nodes. 3. Apply KCL to each node other than the reference node。 express currents in terms of node voltages. 4. Solve the resulting system of linear equations for the nodal voltages. Lect4 EEE 202 9 Currents and Node Voltages 500W V1 500W V1 V2 W?50021 VVW5001VLect4 EEE 202 10 3. KCL at Node 1 500W 500W I1 V1 V2 W?W??5005001211VVVILect4 EEE 202 11 3. KCL at Node 2 500W 1kW 500W V2 V3 V1 0500k1500 32212 ?W??W?W? VVVVVLect4 EEE 202 12 3. KCL at Node 3 2323500500 IVVV ?W?W?500W 500W I2 V2 V3 Lect4 EEE 202 13 Steps of Nodal Analysis 1. Choose a reference (ground) node. 2. Assign node voltages to the other nodes. 3. Apply KCL to each node other than the reference node。 one is obtained using KVL and Ohm’s law to the supermesh and the other is obtained by relation regulated due to the current source. 6202262121?????iiiiPSUT Methods of Analysis 52 ?Similarly, a supermesh formed from three meshes needs three equations: one is from the supermesh and the other two equations are obtained from the two current sources. PSUT Methods of Analysis 53 0102)(8506)(8424434322124331???????????????iiiiiiiiiiiiiPSUT Methods of Analysis 54 Nodal and Mesh Analysis by Inspection PSUT Methods of Analysis 55 (a)For circuits with only resistors and independent current sources (b)For planar circuits with only resistors and independent voltage sources The analysis equations can be obtained by direct inspection ?the circuit has two nonreference nodes and the node equations PSUT Methods of Analysis 56 ?????? ??????????????????????????221213222212321222121121)()()()(IIIvvGGGGGGM A TR IXvGvvGIvvGvGII?In general, the node voltage equations in terms of the conductances is PSUT Methods of Analysis 57 ?????????????????????????????????????NNNNNNNNiiivvvGGGGGGGGG????????? 2121212222111211or simply Gv = i where G : the conductance matrix, v : the output vector, i : the input vector ?The circuit has two nonreference nodes and the node equations were derived as PSUT Methods of Analysis 58 ????????????????????????2121323331 vviiRRRRRR?In general, if the ci
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