Patent ID: 7190229

Claim:
Electronic apparatus ( 120 , 130 , 140 , 150 , 160 , 170 , 180 , 190 , or 200 ) which comprises: a solid-state electronic device (Q 1 , Q 2 , Q 5 , or Q 9 ) that includes higher and lower dc voltage terminals; an other electronic device (Q 2 , Q 7 , Q 8 , Q 9 , Q 10 , Q 12 , 92 , 110 , or 112 ) that includes higher and lower dc voltage terminals; means, comprising means (L 2 ) for connecting said lower dc voltage terminal of one of said electronic devices to said higher dc voltage terminal of an other of said electronic devices, for connecting said electronic devices in dc series between a dc source voltage and an electrical ground; means, comprising a capacitor (C 5 , C 6 , C 9 , or C 19 ) that is connected between said lower dc voltage terminal of said one electronic device and said electrical ground, for rf decoupling said dc series-connected electronic devices; and means ( 122 , 122 A, 162 , 162 A, or 162 B), being connected to a proportioning voltage and to said one electronic device, for precisely proportioning a preselected percentage of said dc source voltage to said one electronic devices irrespective of production variations of operating parameters in one or both of said electronic devices or drift of said operating parameters in one or both of said electronic devices.