The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 17, 2019

Filed:

Sep. 07, 2018
Applicant:

Dialog Semiconductor (Uk) Limited, London, GB;

Inventor:

Louis de Marco, Swindon, GB;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/157 (2006.01); H02M 3/158 (2006.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
H02M 3/157 (2013.01); H02M 1/00 (2013.01); H02M 3/158 (2013.01); H02M 3/1582 (2013.01); H02M 2001/0032 (2013.01);
Abstract

A DC-DC switching converter, with a low IQ hysteretic-PWM automated hybrid control architecture, switching from a first mode to a second mode, when load current changes, is described. The DC-DC switching converter provides a simple architecture for a Boost converter, with efficiency high over the entire load range, and with a hybrid hysteretic-PWM control providing a way to automatically switch between modes, without the addition of a sensing element or system complexity. The switching converter uses a voltage comparator to detect the output current is below a certain threshold. A comparator on the error voltage detects the average value of the error signal with relation to the sawtooth signal. If the average value of the error signal is below a threshold for longer than a programmable timer, the main loop is turned off and the system goes into burst mode.


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