| abstract |
An improved class-G amplifier (FIG. 2 ) is provided by adding a first capacitor ( 82 ) between the input of current mirror ( 18 ) and node p, and by adding a second capacitor ( 84 ) between the input of current mirror ( 20 ) and node m. The added capacitors ( 82 ) and ( 84 ) can be sized to stabilize frequency responses when high power supplies are enabled. The added capacitors ( 82 ) and ( 84 ) further function to reduce transient currents during switching through the crossover points between first upper and lower power supplies (Vsp 1 , Vsph) and between second upper and lower power supplies (Vsm 1 , Vsmh). |