Patent ID: 7538612
Filing Date: 2009-05-26
Classification: H03F,H03G,H03H

Abstract:
1. A control circuit for diode based RF circuit comprising two or more analog commutating devices connected in tandem having a plurality of digital control lines, a plurality of selectable poles and at one common pole, the digital control lines being connected to a digital data generator and the selectable poles and at least one common pole being connected to the control terminal(s) of the diode(s) of the RF circuit through a network of resistors of differing values and a potential divider and a power supply or voltage source or a network of potential dividers of differing outputs and a power supply or voltage source, the analog commutating device establishing an internal coupling between the common pole and one of the selectable poles depending upon the digital value generated by the digital data generator and appearing at the digital control lines.