Nonlinear phenomena in a high–power heating unit with pulse modulated control Yuriy Alexsandrovich Gol'tsov, Alexander Stepanovich Kizhuk and Vasiliy Grigorievich Rubanov MATEC Web Conf., 129 (2017) 01031 Published online: 07 November 2017 DOI: 10.1051/matecconf/201712901031