Patent ID: 7148672
Filing Date: 2006-12-12
Classification: G05F

Abstract:
1. A device comprising: a current generator that generates a first current with a first magnitude and a second current with a second magnitude, wherein the first magnitude is a fixed multiple of the second magnitude, wherein the current generator comprises a main control current generator and a startup current generator; a p-n junction having a node, wherein the first current passes through the p-n junction, and wherein a first voltage is present on the node of the p-n junction; and a resistor with a first node and a second node, wherein the second current passes through the resistor, wherein a second voltage is present on the first node and a third voltage is present on the second node, wherein the main control current generator controls the first magnitude and the second magnitude such that the first voltage equals the second voltage, and wherein the startup current generator increases the first magnitude and the second magnitude when the second voltage exceeds the third voltage by less than a predetermined voltage offset.