Patent ID: 8692627

Claim:
A current controlled signal generating circuit, comprising: a first transconducting circuit, for receiving a first reference voltage and a second reference voltage, and operated between the first reference voltage and the second reference voltage, the first transconducting circuit arranged to generate a first current signal according to a voltage input signal; a current adjusting circuit, coupled to the first transconducting circuit, and arranged to generate a second current signal according to a reference current and the first current signal; a second transconducting circuit, for receiving the first reference voltage and the second reference voltage, and operated between the first reference voltage and the second reference voltage, the second transconducting circuit arranged to generate a third current signal according to the voltage input signal; and a current mirror, coupled to the current adjusting circuit and the second transconducting circuit, and arranged to generate a current controlled signal according to at least one of the second current signal and the third current signal.