Patent · US Active

Circuit and method to generate frequency proportional current

US10601412B2 · kind B2 · utility

0Cited by

5References

20Claims

0Family size

Assignee

TEXAS INSTRUMENTS INCORPORATED · US

Inventors

Michael Couleur · Munich, DE
Neil Gibson · Freising, DE
Antonio Priego · Freising, DE

Key dates

Filing date	May 10, 2018
Grant date	Mar 24, 2020
Priority date	—
Expiry date	May 10, 2038

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02B70/10
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

Disclosed examples include self-biased DLL circuits to generate a bias current signal proportional to a repetition frequency of a first signal representing continuous switching or discontinued switching operation of the DC-DC converter. The DLL circuit includes a monostable multivibrator to provide a pulse output signal in response to an edge of the first signal with a pulse duration set by a control current signal, a phase detector to provide output signals according to a phase difference between an edge of the pulse output signal and the first signal, and an output circuit to provide an output signal according to the phase detector output signals and according to an offset signal, to provide the bias current signal according to the output signal, and to provide the control current signal according to the output signal.

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