Dynamic behavior of the class-EM amplifier with one input signal <Abstract> The class-EM amplifier took notice; because of keeps high efficiency and high frequency. The class-EM amplifier that drive with one input signal is supposed, and discussed about design parameter what drive nominal conditions. On the other hand, that amplifier have possibilities that it is not operating nominal conditions. However, there are no study about it. This paper examines the dynamic behavior of the class-EM amplifier with one input signal. First, the circuit dynamics is shown such as the switching rules and nominal conditions or outside of nominal conditions circuit parameters. Then, the dynamic behavior of the circuit is discussed based on the waveform, phase plane and bifurcation diagrams. In particular, we find that the bifurcation phenomenon occurs when the circuit parameter is changed from the nominal conditions. |