Analysis and measurement of nonlinear effects in power amplifiers caused by thermal power feedback

The electrothermal macromodel of switching voltage regulators from the L4970 family

“…So far, the ETMs of such devices as bipolar transistors [34,37,38], power Darlington transistors [39], power MOS transistors [32,[40][41][42], SCRs [43] as well as monolithic voltage regulators [44,45] have been formulated for SPICE.…”

Spice-aided modelling of the UC3842 current mode PWM controller with selfheating taken into account

“…Although this tool is designed for the isothermal analyses with temperature treated as a fixed value, there are some successful attempts of adapting SPICE to electrothermal analyses, e.g. [8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27].…”

“…The first papers on SPICE electrothermal analyses of simple electronic circuits were published on the turn of 90s of the previous century [9][10][11][12]. So far, the electrothermal models of such devices as: bipolar transistors [10,13,14], power Darlington transistors [15], power MOS transistors [8,[16][17][18], SCRs [19] as well as monolithic voltage regulators [20,21] have been formulated for SPICE.…”

“…So far, the electrothermal models of such devices as: bipolar transistors [10,13,14], power Darlington transistors [15], power MOS transistors [8,[16][17][18], SCRs [19] as well as monolithic voltage regulators [20,21] have been formulated for SPICE.…”

“…There is a method of the separated variables [11,21,22], in which equations describing the device current-voltage characteristics at fixed temperature values and the dependence of the junction temperature at fixed power values are solved alternately. On the other hand, there is also a method of common variables [7][8][9][10][11][12][13][14][15][16][17][18][19][20][23][24][25][26][27], in which these equations are solved simultaneously. Note, that using the method of separate variables, the junction temperature values (in the successive iteration steps) are calculated by other computer programs, e.g.…”