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Lectures

Lecture Date/Day Topics Relevant slides/notes
1B 2018/08/22 (W) Logistics and introduction. Recap of linearity. What are oscillators. Examples of oscillators.
2A 2018/08/27 (M) Introduction contd.. Overview of ring, relaxation and harmonic oscillators. Oscillator phenomena and applications.
2B 2018/08/29 (W) Introduction contd.. Oscillator uses and phenomena: pattern formation, computation. Amplitude stability of oscillators. Linear oscillators are always amplitude unstable.
3B 2018/09/05 (W) Amplitude stability of oscillators - contd. Nonlinear oscillators can be amplitude unstable or stable. ODE models of oscillators and their properties.
4A 2018/09/10 (M) Poincare-Bendixon theorem. Higher-d oscillators; non-periodic bounded solutions (chaos). Idealized 3-stage ring oscillator - limit cycle derivation.
4B 2018/09/12 (W) Harmonic oscillators. SHM, damped SHM. Towards amplitude-stable harmonic oscillation. The Barkhausen criterion and its shortcomings.
5A 2018/09/17 (M) Nonlinear harmonic oscillators. Describing function analysis.
5B 2018/09/19 (W) Nonlinear harmonic oscillators. Describing function analysis (contd.).
6A 2018/09/24 (M) Relaxation oscillators.
7B 2018/10/03 (W) Stability. Lyapunov, uniform Lyapunov, asymptotic and exponential stability.
8A 2018/10/09 (Tu) Stability contd.: orbital, uniform orbital, asymptotic orbital stability. Asymptotic phase property.
8B 2018/10/10 (W) Linearization around DC operating points.
9A 2018/10/15 (M) Time Invariance. LTI system stability via eigendecomposition.
9B 2018/10/17 (W) LTI system stability (contd.). Time-varying linearization.
10A 2018/10/22 (M) Floquet Theory.
10B 2018/10/24 (W) Floquet Theory (contd.).
11A 2018/10/29 (M) Floquet applied to oscillators. Inherent contradiction in time-varying linear analysis.
11B 2018/10/31 (W) Nonlinear oscillator perturbation analysis and the PPV phase equation.
12A 2018/11/05 (M) Detecting injection locking by phase comparison. PPV equation's ability to predict injection locking (numerically).
13B 2018/11/14 (W) Understanding injection locking analytically. Adlerization/averaging using MPDE concepts.
14A 2018/11/19 (M) Exam. -
15A 2018/11/26 (M) Sub-harmonic injection locking. Encoding bits using SHIL locks. Flipping a bit. Phase based Boolean logic.
15B 2018/11/28 (W) Hard computational problems. MAX-CUT. The Ising model and problem. Mapping MAX-CUT to Ising. Coupled oscillator networks under 2-SHIL.
15C 2018/11/30 (F) Kuramoto equation under 2-SHIL. Analysis under lock assumption. Non-increasing Lyapunov function for the Kuramoto system. Connection with the Ising Hamiltonian.