Patent ID: 7564230
Filing Date: 2009-07-21
Classification: G05F

Abstract:
1. A system for voltage regulation of an output voltage with respect to a reference voltage, the system comprising: an error amplifying module, the error amplifying module comprising a Bipolar Junction Transistor (BJT), a diode, and at least one resistor, the at least one resistor being connected in series with the diode, the error amplifying module amplifying the difference between the reference voltage and a desired value of the output voltage, the reference voltage being the sum of voltages across the BJT and the diode; and a regulator, the regulator comprising a Field Effect Transistor (FET) and a first resistor, the first resistor being connected between the gate and source of the FET, the gate of the FET being further connected to the collector of the BJT , the diode and the at least one resistor being further connected between the base of the BJT and the source of the FET, the emitter of the BJT being further connected to a ground voltage, the regulator regulating variations in the output voltage based on the amplified difference between the reference voltage and the desired value of the output voltage, wherein the reference voltage and the output voltage are available at a junction of the source of the FET, the first resistor and the diode.