Patent · US Active

Spectrum modulation for switching circuits

US10020722B2 · kind B2 · utility

0Cited by

3References

18Claims

0Family size

Assignee

TEXAS INSTRUMENTS INCORPORATED · US

Inventors

Christian Harder · Freising, DE
Markus Georg Rommel · Freising, DE
Stefan Reithmaier · Freising, DE

Key dates

Filing date	Oct 14, 2016
Grant date	Jul 10, 2018
Priority date	—
Expiry date	Oct 14, 2036

Classification

Technology area (CPC H)Electricity
CPC primaryH04B1/69
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A circuit includes a signal generator to generate an output signal to vary the switching frequency of a switching circuit to mitigate noise in the switching circuit. The signal generator includes a modulation waveform generator (MWG) to generate a ramp signal in response to a numerical input and a switching signal from the switching circuit. The ramp signal is employed to modulate the frequency of the output signal of the signal generator over a range of frequencies from a minimum frequency to a maximum frequency. A frequency adjuster circuit modulates the amplitude of the ramp signal by adjusting at least one of the minimum frequency or the maximum frequency of the range of frequencies.

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