Method and apparatus to improve regulation of a power supply with a compensation signal responsive to the switching signal

摘要

Techniques are disclosed to regulate a power supply (102) with a compensation signal generation circuit (120). On example regulated power supply includes a sense circuit (114) coupled to sense an output voltage of the regulated power supply (102). The regulated power supply (102) also includes a switching power converter circuit (104), which includes a switch coupled to be switched in response to a control signal received from the sense circuit (114) to regulate the output voltage of the regulated power supply (102). The regulated power supply (102) also includes a compensation signal generation circuit (120) coupled to receive a switching signal representative of a switching of the switch in the switching power converter circuit (104). The compensation signal generation circuit (120) is to generate a compensation signal responsive to the switching signal. The compensation signal is to be received by the sense circuit (114) to modify the control signal.