Patent attributes
An open-loop switch-mode boost converter includes a switching signal generator circuit that receives a time-varying input signal and outputs a switching signal. A duty-cycle of the switching signal has a first non-linear relationship to an amplitude of the time-varying input signal. An amplifier receives the switching signal and outputs a time-varying output signal, an amplitude of which has a second non-linear relationship to the duty-cycle of the switching signal. The time-varying output signal has a linear relationship to the time-varying input signal based on the first non-linear relationship and the second non-linear relationship. A filter circuit receives the time-varying output signal and outputs a filtered time-varying output signal which has a maximum frequency component that is substantially the same as a maximum frequency component of the time-varying input signal. The switching signal generator circuit is communicatively isolated from the voltage output node and the filter output node.
