Patent ID: 6885224

Claim:
A comparator for effecting comparison of an input voltage with a threshold voltage; the comparator comprising: (a) a first current mirror device; said first current mirror device including a first bipolar transister, having a first base and a first collector, said first base and said first collector being connected to a diode; said input voltage being received at said first current mirror device; (b) a second current mirror device; said second current mirror device including a second bipolar transistor having a second base and a second collector, said second base and said second collector establishing a diode; (c) a first impedance coupled in series with said diode being connected to said first collector and said diode being connected to said second collector; and (d) a second impedance coupled between ground and said second current mirror device; said first current mirror device and said second current mirror device being further coupled with an output locus; output signals appearing at said output locus indicating comparative voltage levels of said input voltage and said threshold voltage.