Voltage-to-frequency converter
US5760617A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 20, 1996 |
| Grant date | Jun 2, 1998 |
| Priority date | — |
| Expiry date | Aug 20, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/86
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A voltage-to-frequency converter having an analog-to-digital converter, based on analog components, for converting samples of an analog signal into corresponding digital words and a digital-to-frequency converter, based on digital components, for converting the digital words into a train of pulses having a pulse repetition frequency related to the analog signal. With such an arrangement, the digital-to-frequency converter and the analog-to-digital converter are adapted to operate at different rates. Therefore, the analog-to-digital converter may be optimized at one operating rate while the digital-to-frequency converter is adapted to operate at a higher operating rate and over a wide range of operating rates. This arrangement thereby enables a slower, analog component based, analog-to-digital converter to be used fabricated with CMOS technology along with the higher, variable operating rate, digital component based, digital-to-frequency converter. The digital-to-frequency converter includes a register and an adder for summing the digital words with contents stored in the register to produce a sum thereof. The sum is stored in the register. An interpolator is provided between the an…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.