Tracking or independent output voltage adjustment for multiple output supplies

A voltage regulation circuit for multiple voltage outputs, comprising:

• a first and a second voltage control loop, each of which is substantially decoupled from the other and each of which is resistively coupled to the reference voltage supply;
• a first voltage output resistively coupled to a first input of the first voltage control loop;
• a second voltage output resistively coupled to a first input of the second voltage control loop;
• a reference voltage supply resistively coupled to a second input of each of the first and second voltage control loops;
• a tracking trim voltage adjust input restively coupled to the second input of the first voltage control loop and resistively coupled to the second input of the second voltage control loop;
• wherein
• the error on the first and the second voltage outputs are independently adjustable.

A method for constructing a voltage regulation device for multiple voltage outputs, comprising:

• (a) fabricating a multiple voltage output regulation circuit having components compatible with both tracking trim adjust voltage regulation and independent voltage regulation;
• (b) responsive to a determination that a tracking trim adjust device is desired, resistively coupling a tracking trim adjust pin to the multiple voltage output regulation circuit;
• and
• (c) responsive to a determination that an independent voltage regulation device is desired, coupling respective ones of multiple independent voltage adjust input pins to respective segments of the multiple voltage output regulation circuit.

A system for constructing a voltage regulation device for multiple voltage outputs, comprising:

• (a) means for fabricating a multiple voltage output regulation circuit having components compatible with both tracking trim adjust voltage regulation and independent voltage regulation;
• (b) means, responsive to a determination that a tracking trim adjust device is desired, for resistively coupling a tracking trim adjust pin to the multiple voltage output regulation circuit;
• and
• (c) means, responsive to a determination that an independent voltage regulation device is desired, for coupling respective ones of multiple independent voltage adjust input pins to respective segments of the multiple voltage output regulation circuit.

A regulation circuit for multiple output power supplies, comprising:

• a plurality of voltage outputs;
• a plurality of independent voltage adjust inputs;
• a tracking trim adjust input;
• at least one reference voltage supply;
• and
• a plurality of operational amplifiers;
• wherein
• the plurality of voltage outputs are coupled to a first input and an output of the operational amplifiers;
• the reference voltage supply is coupled a second input of each of the operational amplifiers;
• the tracking trim adjust pin is resistively coupled to the first input of a first of the plurality of operational amplifiers and is resistively coupled to the first input of a second of the plurality of operational amplifiers;
• a first of the independent voltage adjust inputs is coupled to the second input of the first of the plurality of operational amplifiers;
• and
• a second of the independent voltage adjust inputs is coupled to the second input of the second of the plurality of operational amplifiers.