Patent ID: 7755418

Claim:
A current source generator utilizing a portion of an analog circuit to drive the analog circuit to complete an analog function cyclically, the current source generator comprises: a portion of an analog circuit; a control clock circuit used to start and stop operation of the portion of the analog circuit; a detection circuit configured to determine when an analog function of the analog circuit is completed and provide an output indicative of the completion of the analog function; a phase weighted integrating circuit driven by the output of the detection circuit and configured to set an analog level that is a function of the analog function completion time; a current source that utilizes the analog level set by the integrating circuit as a reference level for driving the analog circuit to induce the analog circuit to complete the analog function at a desired speed; and a multiplier circuit configured to adjust the analog level set by the phase weighted integrating circuit to modify the analog function completion time proportionally in the analog circuit, wherein the phase weighted integrating circuit is configured to set the analog level at a value that induces the analog circuit function to take less than one half cycle of the control clock speed of operation for completion.