Patent ID: 7436286

Claim:
A circuit arrangement for increasing a functional transmission range of a passive device having an input to receive an operating voltage (Vdd) from a source, said circuit arrangement comprising a voltage converter ( 3 ) connected to said input for generating from said operating voltage a function voltage (Vpp) for performing at least one function sequence in said passive device, a voltage processing circuit ( 4 ) including a voltage determination circuit ( 4 . 7 ) connected at ( 3 . 6 ) to said voltage converter ( 3 ) for determining at least one characteristic of said function voltage (Vpp), said voltage processing circuit ( 4 ) further comprising a valuation circuit ( 4 . 8 ) having an input connected to an output of said voltage determination circuit for generating a logic control signal (HVok) based on said at least one characteristic, said circuit arrangement further comprising a first time counter ( 5 ) having an input connected to receive said logic control signal (HVok) for limiting a time duration of a performance of said at least one function sequence to a duration actually required for the performance of said at least one function sequence, said valuation circuit further comprising a second time counter connected for confirming or rejecting a function performance controlled by said first time counter.