Patent ID: 8212613

Claim:
A method of obtaining one or more than one output signals from a direct current (DC) voltage, wherein the output signals are linearly amplified replicas of an input signal, comprising the steps of: receiving the input signal; transforming and pulse modulating the input signal for generating a pulse modulated signal, wherein the transforming is based on that when applying the direct current (DC) voltage across a primary winding of a flyback transformer, the energy stored in the primary winding is proportional to square of the applying time, wherein the flyback transformer further comprises one or more than one secondary windings that each secondary winding is for generating a corresponding output signal; switching a current in the primary winding from the direct current (DC) voltage according to the pulse modulated signal; generating the output signals comprising the following steps for each output signal from its corresponding secondary winding: blocking a current in the corresponding secondary winding when the current in the primary winding is switched on and conducting the current when the current in the primary winding is switched off for generating a pulsed output signal; filtering the pulsed output signal for outputting the output signal.