Method and system for maintaining output voltage regulation of a non-synchronous switching regulator providing voltage supply to a main load

Patent metadata

Field	Value
Publication number	US-10367416-B2
Application number	US-201715667432-A
Country	US
Kind code	B2
Filing date	Aug 2, 2017
Priority date	Aug 2, 2017
Publication date	Jul 30, 2019
Grant date	Jul 30, 2019

Abstract

Method and system for maintaining output voltage regulation of a non-synchronous switching regulator providing a voltage supply to a main load. The method includes determining, using an electronic processor, that the main load is transitioning from a first load state to a second load state. The method also includes connecting, using the electronic processor, a switchable load to the non-synchronous switching regulator in response to determining that the main load is transitioning from the first load state to the second load state.

First claim

We claim:

1. A method for maintaining output voltage regulation of a non-synchronous switching regulator providing a voltage supply to a main load, the method comprising:
receiving, at an electronic processor, battery health information of a battery;
determining, using the electronic processor, a current drain headroom of the battery based on the battery health information;
identifying, using the electronic processor, an activity to be performed by a device coupled to the battery, the device including the non-synchronous switching regulator and the main load;
determining, using the electronic processor, an expected peak current for the activity;
determining, using the electronic processor, that the current drain headroom is less than the expected peak current for the activity; and
pre-loading, using the electronic processor, the non-synchronous switching regulator in response to determining that the current drain headroom is less than the expected peak current for the activity.

2. The method of claim 1 , wherein pre-loading the non-synchronous switching regulator comprises:
determining that the main load is transitioning from a first load state to a second load state; and
connecting a switchable load to an output of the non-synchronous switching regulator in response to determining that the main load is transitioning from the first load state to the second load state and before the main load transitions from the first load state to the second load state, wherein the switchable load is external to the non-synchronous regulator.

3. The method of claim 2 , further comprising:
determining that the main load has reached the second load state; and
disconnecting the switchable load from the output of the non-synchronous switching regulator in response to determining that the main load has reached the second load state.

4. The method of claim 3 , wherein the first load state is when the main load is operating below a first load threshold, wherein the second load state is when the main load is operating above a second load threshold, and wherein the first load threshold is lower than the second load threshold.

5. The method of claim 3 , wherein the first load state is when the main load is operating above a first load threshold, wherein the second load state is when the main load is operating below a second load threshold, and wherein the first load threshold is greater than the second load threshold.

6. The method of claim 1 , wherein the main load is a time-division multiple access (TDMA) radio frequency (RF) transmitter.

Assignees

• Motorola Solutions Inc

Inventors

• Kuppusamy Anbuselvan
• Stephens James L
• Sanchez Jose E
• Giles Mark A
• Bartels Peter J
• Lenzen Wesley M

Classifications

• H02M2001/0012

  Electricity · mapped topic

• H02M3/1584

  with a plurality of power processing stages connected in parallel · CPC title

• H02M3/157 Primary

  with digital control · CPC title

• Y02B70/16

  Cross-Sectional Technologies · mapped topic

• H02M2003/1566

  Electricity · mapped topic