Handout 18: Dual-input describing functions
Eric Feron
April 5, 2004
Dual-input describing functions are for mixed signals (sinusoid
+ small constant signal)
Approximating non-constant signals with constant ones
Applications
1
Dual-input Describing function for switch nonlinearity
2
Dual-input describing function for switch nonlinearity - cont’d
3
Step response of 3rd order motor system
4