Amplifiers – Sum and difference amplifiers
Reexamination Certificate
2006-05-30
2006-05-30
Barnie, Rexford (Department: 2819)
Amplifiers
Sum and difference amplifiers
C330S051000
Reexamination Certificate
active
07053704
ABSTRACT:
A power amplifier circuit including first and second cascade-assembled operational amplifiers having respective first inputs receiving a reference voltage across a decoupling capacitor, respective outputs of which are connected across a load and are looped back on respective second inputs, the second input of the first amplifier receiving, from a coupling capacitor, an input voltage to be amplified, the amplifier circuit including means for separately charging the coupling and decoupling capacitors, upon circuit power-on, from an off or standby state, and means for inhibiting the amplifiers at least during the separate charging.
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French Search Report from French Patent Application 03/04067, filed Apr. 1, 2003.
Cittadini Robert
Forel Christophe
Barnie Rexford
Jorgenson Lisa K.
Mai Lam T.
McClellan William R.
STMicroelectronics S.A.
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