Voltage trimming circuit
US7920011B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 16, 2009 |
| Grant date | Apr 5, 2011 |
| Priority date | — |
| Expiry date | Sep 16, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F1/575
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A voltage trimming circuit is provided. The voltage trimming circuit has an input stage, an up-trimming resistor ladder, a down-trimming resistor ladder and a control means. The input stage has a first input, a second input and an output, wherein the first output is to receive an input voltage, the second input is connected to a connection point and the output is to provide an output voltage based on a difference between the voltage of the first and the second input. The up-trimming resistor ladder is connected between the output of the input stage and the connection point and the down-trimming resistor ladder connected between a ground potential and the connection point. The control means controls the resistance of the up-trimming and the down-trimming resistor ladder to up-trim or down-trim the output voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.