Patent Number: 6,480,465

Title: AM transmitter having feed-forward correction to compensate for sourceimpedance

Abstract: An AM transmitter having feed forward correction to compensate for sourceimpedance. A power supply source provides a DC operating voltage. N RFamplifiers are provided for amplifying an input signal. The amplifiers areconnected to the power supply source. Each amplifier has an output circuitthat, when the associated amplifier is on, supplies energy from the sourceto provide an output voltage at a load. Each the amplifier output circuitexhibits a source impedance that degrades the value of the output voltage.A source impedance corrector varies the value of the input signal prior toamplification by the amplifiers to compensate for any variations in thevalue of the output voltage caused by the source impedances.

Inventors: Luu; Ky Thoai (Mason, OH)


International Classification: H03F 3/21 (20060101); H03F 3/20 (20060101); H03F 1/32 (20060101); H04B 1/04 (20060101); H03F 001/14 ()

Expiration Date: 11/12014