Patent ID: 8304931
Filing Date: 2012-11-06
Classification: H02J,H02M,H03K

Abstract:
1. A voltage regulator circuit comprising: at least first and second output stages; a digital control block; at least first and second pulse-width generators; and a configuration matrix including a plurality of switches operable to selectively couple the first and second pulse width generators to the first and second output stages or to selectively uncouple the first and second pulse width generators from the first and second output stages; wherein: said digital control block is operable to receive a reference signal and a first feedback signal and to generate a first internal signal operative to cause a difference between the first feedback signal and the reference signal to be less than a predefined value, said first feedback signal being representative of a first regulated output voltage said digital control block is further operable to receive the reference signal and a second feedback signal and to generate a second internal signal operative to cause a difference between the second feedback signal and the reference signal to be less than a predefined value, said second feedback signal being representative of a second regulated output voltage said at least first pulse-width generator is operable to generate at least a first pulse having a width defined in part by a level of the first internal signal, said at least second pulse-width generator is operable to generate at least a second pulse having a width defined in part by a level of the second internal signal, wherein in response to a configuration data received by the configuration matrix the plurality of switches cause the first pulse-width generator to be coupled to the first output stage and the second pulse-width generator to be coupled to the second output stage, thereby causing: