Patent · US Active

Voltage supply for supplying in zones voltages proportional to a master supply votlage using voltage mirroring

US9459646B2 · kind B2 · utility

3Cited by

3References

20Claims

0Family size

Assignee

Broadcom Corporation · US

Inventors

Junhua Tan · Saratoga, US
Yuan Yao · Stanford, US
Jing Wang · Riverside, US
Hui Pan · Coto De Caza, US

Key dates

Filing date	Jan 20, 2015
Grant date	Oct 4, 2016
Priority date	—
Expiry date	Feb 18, 2035

Classification

Technology area (CPC G)Physics
CPC primaryG05F3/262
WIPO fieldControl
WIPO sectorInstruments

Abstract

A scaled voltage supply to supply voltage biases to circuits in voltage zones. The scaled voltage supply includes a master voltage corresponding to a voltage drop across a master-upper rail having a voltage Vdd and a master-lower rail having a voltage Vss=0. Further, the supply includes a voltage-divider network dividing the master voltage Vdd into intermediate voltages αVdd, βVdd, etc., wherein α and β are predetermined constants. These intermediate voltages scale with the master voltage and are supplied to the voltage zones using non-invasive soft rails. In one implementation the soft rails use voltage mirrors to supply the intermediate voltages to the circuits within voltage zones.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.