Patent ID: 8981836
Filing Date: 2015-03-17
Classification: H02M,H03L,Y02B

Abstract:
1. A charge pump, comprising: a plurality of charge transfer transistors arranged in series along a charge transfer path extending between an output of the charge pump and a supply terminal, wherein a first charge transfer node is arranged between first and second charge transfer transistors that are adjacent to one another within the plurality of charge transfer transistors; a first capacitor having a first plate terminal coupled to the first charge transfer node and having a second plate terminal operably coupled to a first clock line; and a first body bias transistor having a source terminal coupled to the first charge transfer node and having a drain terminal coupled to a body of the first charge transfer transistor, wherein the first body bias transistor is operable to selectively couple the first charge transfer node to the body of the first charge transfer transistor based on both an output voltage at the output of the charge pump and a series of wake-up pulses, wherein the wake-up pulses are spaced at predetermined time intervals that are independent of the output voltage.