US 2020/0403513 A1 · SINGLE-INPUT MULTIPLE-OUTPUT (SIMO) CONVERTER HAVING A CONTROLLER WITH SWITCHABLE REST STATES

Abstract

An inductor has first and second terminals. A first switch is coupled between the first terminal and a voltage supply terminal. A second switch is coupled between the first terminal and a negative output supply terminal. A third switch is coupled between the second terminal and a positive output supply terminal. A fourth switch is coupled between the second terminal and a ground terminal. A controller is coupled to the first, second, third and fourth switches. The controller is configured to provide: an inductor charge mode; a positive boost mode; a negative boost mode; a first rest state in which the controller closes the first switch and opens the second, third and fourth switches; and a second rest state in which the controller closes the fourth switch and opens the first, second and third switches.

Claims21

Dependent claims

A system, comprising:

an inductor having first and second terminals;
a first switch coupled between the first terminal and a voltage supply terminal;
a second switch coupled between the first terminal and a negative output supply terminal;
a third switch coupled between the second terminal and a positive output supply terminal;
a fourth switch coupled between the second terminal and a ground terminal;
and
a controller coupled to the first, second, third and fourth switches, the controller configured to provide:
an inductor charge mode;
a positive boost mode;
a negative boost mode;
a first rest state in which the controller closes the first switch and opens the second, third and fourth switches;
and a second rest state in which the controller closes the fourth switch and opens the first, second and third switches.

9 more elements

A single-input multiple-output (SIMO) converter circuit, comprising:

a first switch coupled between a first inductor terminal and a voltage supply terminal;
a second switch coupled between the first inductor terminal and a negative output supply terminal;
a third switch coupled between a second inductor terminal and a positive output supply terminal;
a fourth switch coupled between the second inductor terminal and a ground terminal;
and
a controller coupled to the first, second, third and fourth switches, the controller configured to switch between:
a first rest state in which the controller closes the first switch and opens the second, third and fourth switches;
and a second rest state in which the controller closes the fourth switch and opens the first, second and third switches.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application

17/014,863Filed 8 Sep 2020

Priority

26 Sep 2018

Published

24 Dec 2020

Term ends

Not estimatedThe source records don’t support an estimate.

Classification5 codes

H02M 3/158
With automatic control of output voltage or current, e.g. switching regulators: including plural semiconductor devices as final control devices…
H02M 3/157
With automatic control of output voltage or current, e.g. switching regulators: with digital control
H02M 1/0003
Details of apparatus for conversion: details of control, feedback or regulation circuits
H02M 1/009
Converters characterised by their input or output configuration: having two or more independently controlled outputs

Family

Application62/736,577Us provisional application · filed 26 Sep 2018

Application16/428,525Continuation · filed 31 May 2019

Application17/014,863Continuation

US 10,770,971 B2Related patent

US 11,476,761 B2Related patent

US 2020/0099294 A1Published application

US 2020/0403513 A1This patent

From the US filing history. Foreign family members aren’t listed.

Single-input multiple-output (simo) converter having a controller with switchable rest states

Life of this patent

Single-input multiple-output (simo) converter having a controller with switchable rest states

Life of this patent

Abstract

Claims21