1. S. Waaben, “High performance optocoupler circuits.” in IEEE International Solid-State Circuits Conference, San Francisco, California, vol. XVIII, 1975, pp. 30–31.
2. Y. Panov and M.M. Jovanovic, “Small-signal analysis and control design of isolated power supplies with optocoupler feedback.” IEEE Transactions on Power Electronics, vol. 20, no. 4, pp. 823–832, 2005.
3. R. Mammano, Isolating the Control Loop, Unitrode Corporation, Merrimack, NH, 1990, http://focus.ti.com/lit/ml/slup090/slup090.pdf/.
4. M.P. Sayani, R. White, D.G. Nason, and W.A. Taylor, “Isolated feedback for off-line switching power supplies with primary side control.” In Applied Power Electronics Conference and Exposition, February 1998, pp. 203–211.
5. T. Bajenesco, “CTR degradation and ageing problem of optocouplers.” In 4th International Conference on Solid State and Integrated Circuit Technology, October 1995, pp. 173–175.