Patent ID: 7626285
Filing Date: 2009-12-01
Classification: H01H,H01P

Abstract:
1. Apparatus for controlling and monitoring at least one multi-position RF switch, said apparatus comprising: plural coils disposed in said at least one RF switch, each of said coils corresponding to a position of said at least one RF switch; plural first switches connected to a DC source and further connected to said plural coils via a wiring network for directing a DC signal through at least one of said coils for switching said at least one RF switch to a selected position; plural serially connected second switch and capacitor combinations each coupled across a respective coil; plural third switches connected to an AC source and further connected to said plural coils and said second switch and capacitor combinations coupled across each coil for directing an AC input signal thereto via said wiring network, wherein a DC signal provided to a coil results in closure of a second switch coupled across said coil and provides an AC output signal representing the coil energized by the DC signal and the state of said at least one RF switch; and a controller coupled to said first and third switches for providing the AC signal to said third switches only when a DC signal is not being provided via said first switches to a coil.