Controlled self-oscillation modulator and power conversion system using such a modulator
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 26, 2002
Grant Date -
N/A
app pub date -
Sep 29, 2000
filing date -
Sep 29, 2000
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A controlled oscillation modulator includes a comparator and a power amplification stage for pulse modulation, and a higher order oscillating loop comprising first feedback means (21) and first forward means (22) securing stable oscillating conditions. The modulator is characterized by current measurement means, arranged to measure a value (i.sub.L) of a current supplied by said power amplification stage to a load (5) connected to the modulator, said measured value being supplied to said first feedback means (21), wherein said first feedback means (21) has a transfer function adapted to generate said first feedback signal based on said measured value (i.sub.L), and said first forward means (21) has a transfer function adapted to generate said modulating signal based on said first feedback means and an input signal (V.sub.i). Applications are general DC-DC and DC-AC power conversion with inductive loading. In a preferred embodiment the system implements a precision transconductance amplifier by a current feedback. In a futher preferred embodiment the controlled oscillation modulator implements a precision voltage power amplifier for audio amplification purposes.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully