# US 2013/0154600 A1 · Control of power converters with capacitive energy transfer

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- Number: US 2013/0154600 A1
- Document ID: US20130154600A1
- Status: Published application
- Kind: A1
- Application number: 13/718,658
- Filed: 2012-12-18
- Published: 2013-06-20
- Earliest claimed: 2011-12-19
- Assignees: Arctic Sand Technologies, Inc.
- Inventors: David M. Giuliano
- Web page: https://patentgrep.com/patent/US20130154600A1

## CPC

- G05F 1/10: Regulating voltage or current (G05F1/02 takes precedence)
- H02M 3/1584: {with a plurality of power processing stages connected in parallel}
- H02M 1/0043: {Converters switched with a phase shift, i.e. interleaved (non-isolated DC/DC converters H02M3/1586)}
- H02M 1/0058: {by employing soft switching techniques, i.e. commutation of transistors when applied voltage is zero or when current flow is zero (using an auxiliary actively switched resonant commutation circuit connected to an intermediate DC voltage or between two push-pull branches of an inverter bridge H02M7/4811; in resonant inverters H02M7/4815; in inverters operating from a resonant DC source H02M7/4826)}
- H02M 3/07: using capacitors charged and discharged alternately by semiconductor devices with control electrode {, e.g. charge pumps}
- H02M 1/007: {Plural converter units in cascade (push-pull DC/DC converters with pre-regulator H02M3/3374; DC-AC converters following a DC-DC stage including a high frequency transformer H02M7/4807; DC-AC converters following a DC-DC conversion stage generating periodically varying voltages H02M7/4826)}
- H02M 1/0095: {Hybrid converter topologies, e.g. NPC mixed with flying capacitor, thyristor converter mixed with MMC or charge pump mixed with buck}
- H02M 3/077: {with parallel connected charge pump stages}
- H02M 3/1586: {switched with a phase shift, i.e. interleaved}
- Y02B 70/10: Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
- G05F: SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- 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)
- Y02B: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS

## Abstract

An apparatus for power conversion comprises a voltage transformation element, a regulating element, and a controller; wherein, a period of the voltage transformation element is equal to a product of a coefficient and a period of the regulating circuit, and wherein the coefficient is selected from a group consisting of a positive integer and a reciprocal of said integer.

## Claims

### Claim 1

An apparatus for power conversion, said apparatus comprising a voltage transformation element, a regulating element, and a controller; wherein, a period of the voltage transformation element is equal to a product of a coefficient and a period of the regulating circuit, wherein said coefficient is selected from a group consisting of a positive integer and a reciprocal of said integer.

### Claim 2 (depends on 1)

The apparatus of claim 1, wherein said regulating element is configured to pass continuous current therethrough.

### Claim 3 (depends on 1)

The apparatus of claim 1, wherein said regulating element is configured to pass discontinuous current therethrough.

### Claim 4 (depends on 3)

The apparatus of claim 3, wherein said regulating element is controlled so as to avoid passing current therethrough during a dead-time of the voltage transformation element.

### Claim 5 (depends on 1)

The apparatus of claim 1, wherein said controller is configured to control multiple phases present in said regulating element and said voltage transformation element.

### Claim 6 (depends on 1)

The apparatus of claim 1, wherein said controller is configured to control multiple phases present in said regulating element and said voltage transformation element so as to avoid passing current therethrough during dead-times associated with each of said multiple phases.

### Claim 7 (depends on 1)

The apparatus of claim 1, further comprising a data processing unit and a memory unit, at least one of which is configured to consume power provided by said power converter circuit.

### Claim 8 (depends on 1)

The apparatus of claim 1, further comprising a data processing unit, a display, and a wireless transmitter and receiver, at least one of which is configured to consume power provided by said power converter circuit.

### Claim 9

An apparatus for power conversion, said apparatus comprising a first element configured to accept an input signal having a first voltage and to output an intermediate signal having a second voltage, a second element configured to receive the intermediate signal from the first element and to output an output signal having a third voltage, wherein the first element is selected from a group consisting of a voltage transformation element and a regulating element, and said second element is a regulating element when the first element is a voltage transformation element and a voltage transformation element otherwise; and a controller configured to control a period of the voltage transformation element and a period of the regulating element, the controller being configured to synchronize the period of the voltage transformation element with a product of a coefficient and the period of the regulating element, wherein the coefficient is selected from a group consisting of a positive integer and a reciprocal of the integer.

### Claim 10 (depends on 9)

The apparatus of claim 9, wherein the coefficient is a positive integer.

### Claim 11 (depends on 9)

The apparatus of claim 9, wherein the coefficient is a reciprocal of the positive integer.

### Claim 12 (depends on 9)

The apparatus of claim 9, wherein the controller is configured to receive the intermediate signal from the first element and the output signal from the second element.

### Claim 13 (depends on 12)

The apparatus of claim 12, wherein the controller is configured to receive the input signal.

### Claim 14 (depends on 12)

The apparatus of claim 12, wherein the controller is configured to generate a first control signal based on the output signal; and to send the first control signal to the regulating element.

### Claim 15 (depends on 14)

The apparatus of claim 14, wherein the controller is configured to generate a second control signal based on the intermediate signal and the first control signal; and to send the second control signal to the voltage transformation element.

### Claim 16 (depends on 9)

The apparatus of claim 9, wherein the controller is configured to provide linear voltage-mode control.

### Claim 17 (depends on 9)

The apparatus of claim 9, wherein the controller is configured to provide peak current-mode control.

### Claim 18 (depends on 9)

The apparatus of claim 9, wherein the regulating element is configured to pass continuous current therethrough.

### Claim 19 (depends on 9)

The apparatus of claim 9, wherein the regulating element is configured to pass discontinuous current therethrough.

### Claim 20 (depends on 9)

The apparatus of claim 9, wherein the regulating element is configured to avoid passage of current therethrough during a dead-time of the voltage transformation element.

### Claim 21 (depends on 9)

The apparatus of claim 9, wherein the voltage transformation element comprises a plurality of voltage transformation sub-elements and the regulating element comprises a plurality of regulating sub-elements, and wherein each voltage transformation sub-element is associated with a corresponding one of the regulating sub-elements.

### Claim 22 (depends on 9)

The apparatus of claim 9, wherein the first element comprises a voltage transformation element.

### Claim 23 (depends on 9)

The apparatus of claim 9, wherein the first element comprises a regulating element.
