# US 2014/0192576 A1 · Voltage regulator

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- Number: US 2014/0192576 A1
- Document ID: US20140192576A1
- Status: Published application
- Kind: A1
- Application number: 14/202,774
- Filed: 2014-03-10
- Published: 2014-07-10
- Earliest claimed: 2009-12-03
- Assignees: Trumpet Holdings, Inc.
- Inventors: James R. Hannas
- Web page: https://patentgrep.com/patent/US20140192576A1

## CPC

- H02J 7/1492: {by means of controlling devices between the generator output and the battery}
- H02J 7/00: Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
- H02J 7/927: {with introduction of pulses during the charging process}
- H02M 7/155: using semiconductor devices only
- H02J 2207/20: Charging or discharging characterised by the power electronics converter
- Y02T 10/92: Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles
- H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02M: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF (transformers H01F; dynamo-electric converters H02K47/00; controlling transformers, reactors or choke coils, control or regulation of electric motors, generators or dynamo-electric converters H02P)
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

## Abstract

Provided are improvements for systems and methods of alternating current (AC) to direct current (DC) power regulation. The system improvements include a regulation circuit having a microprocessor that controls a silicon controlled rectifier circuit. Method improvements include one or more of SCR load sharing, adaptive voltage droop compensation, and/or voltage rebound compensation.

## Claims

### Claim 1

A method comprising the steps of: using a microprocessor,
sensing a battery voltage level;
sensing a plurality of phases of alternating current received at a plurality of phase inputs;
comparing the battery voltage level to a predetermined rower charge limit value; and,
if the battery voltage level is less than the lower charge limit value, activating each of a plurality of silicon controlled rectifiers in an alternating fashion, where such activation is substantially synchronized to predetermined states of at least one of a plurality of alternating current electronic signals received at the plurality of phase inputs.

### Claim 2 (depends on 1)

A method according to claim 1, wherein the activation of each of the plurality of silicon controlled rectifiers is at least partially determined by a comparison, performed by the microprocessor, of a multi-state counter to a predetermined value.