IP Library › Granted Patent US 10,048,730
Granted Patent B2
US 10,048,730 · App. 14/281,045 · Granted Aug 14, 2018

Systems and methods for rectifying a voltage using an embedded direct-current-to-direct-current converter

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Quick Facts
Patent No.
US 10,048,730
App. No.
14/281,045
Granted
Aug 14, 2018
Kind
B2
Abstract

In accordance with embodiments of the present disclosure, a voltage rectifier may include: an AC/DC converter, a first DC/DC converter, and a second DC/DC converter. The AC/DC converter may be configured to convert an AC source voltage to a DC bus voltage. The first DC/DC converter may be configured to convert the bus voltage to a DC compensating voltage having an AC ripple to compensate for AC ripple of the bus voltage. The second DC/DC converter may be configured to convert a DC compensated bus voltage to a DC output voltage, wherein the DC compensated bus voltage is equal to a difference between the bus voltage and the compensating voltage.

Claims (29)

1. A voltage rectifier including:

an alternating-current-to-direct-current (AC/DC) converter configured to convert an alternating current (AC) source voltage to a direct current (DC) bus voltage, wherein the DC bus voltage includes an AC ripple based on the AC source voltage;

a first direct-current-to-direct-current (DC/DC) converter configured to convert the DC bus voltage to a DC compensating voltage having an AC ripple configured to compensate for the AC ripple of the DC bus voltage, the voltage rectifier being configured to generate a DC compensated bus voltage that is equal to a difference between the DC bus voltage and the DC compensating voltage, wherein the DC compensated bus voltage is substantially free of AC ripple;

a second DC/DC converter configured to receive the DC bus voltage and the DC compensating voltage and convert the DC compensated bus voltage to a DC output voltage; and

a controller configured to, based on the DC bus voltage, regulate a current input to the AC/DC converter to have a sinusoidal waveform in phase with the AC source voltage.

2. The voltage rectifier of claim 1 , further comprising a second controller for regulating the first DC/DC converter based on one or more of the DC compensating voltage and the DC output voltage.

3. The voltage rectifier of claim 1 , wherein the first DC/DC converter comprises a buck-type DC/DC converter.

4. The voltage rectifier of claim 1 , wherein the first DC/DC converter comprises a buck-boost-type DC/DC converter.

5. The voltage rectifier of claim 2 , wherein the second DC/DC converter is unregulated.

6. An information handling system comprising:

at least one information handling resource; and

a power system configured to deliver electrical energy to the at least one information handling resource, the power system having a rectifier comprising:

an alternating-current-to-direct-current (AC/DC) converter configured to convert an alternating current (AC) source voltage to a direct current (DC) bus voltage, wherein the DC bus voltage includes an AC ripple based on the AC source voltage;

a first direct-current-to-direct-current (DC/DC) converter configured to convert the DC bus voltage to a DC compensating voltage having an AC ripple configured to compensate for the AC ripple of the DC bus voltage, the rectifier being configured to generate a DC compensated bus voltage that is equal to a difference between the DC bus voltage and the DC compensating voltage, wherein the DC compensated bus voltage is substantially free of AC ripple; and

a second DC/DC converter configured to receive the DC bus voltage and the DC compensating voltage and convert the DC compensated bus voltage to a DC output voltage;

wherein the information handling system further comprises a controller configured to, based on the DC bus voltage, regulate a current input to the AC/DC converter to have a sinusoidal waveform in phase with the AC source voltage.

7. The information handling system of claim 6 , further comprising a second controller for regulating the first DC/DC converter based on one or more of the DC compensating voltage and the DC output voltage.

8. The information handling system of claim 6 , wherein the first DC/DC converter comprises a buck-type DC/DC converter.

9. The information handling system of claim 6 , wherein the first DC/DC converter comprises a buck-boost-type DC/DC converter.

10. The information handling system of claim 7 , wherein the second DC/DC converter is unregulated.

11. A method comprising:

converting an alternating current (AC) source voltage to a direct current (DC) bus voltage at an alternating-current-to-direct-current (AC/DC) converter, wherein the DC bus voltage includes an AC ripple based on the AC source voltage;

converting the DC bus voltage to a DC compensating voltage having an AC ripple configured to compensate for the AC ripple of the DC bus voltage;

generating a DC compensated bus voltage that is equal to a difference between the DC bus voltage and the DC compensating voltage, wherein the DC compensated bus voltage is substantially free of AC ripple;

receiving the DC bus voltage and the DC compensating voltage at a direct-current-to-direct-current (DC/DC) converter;

converting the DC compensated bus voltage to a DC output voltage with the DC/DC converter; and

based on the DC bus voltage, regulating a current input to the AC/DC converter to have a sinusoidal waveform in phase with the AC source voltage.

12. The method of claim 11 , further comprising regulating a first DC/DC converter for converting the DC bus voltage to the DC compensating voltage based on one or more of the DC compensating voltage and the DC output voltage.

13. The method of claim 12 , wherein a second DC/DC converter for converting the DC compensated bus voltage to the DC output voltage is unregulated.

Assignments (15)
RELEASE OF SECURITY INTEREST IN PATENTS PREVIOUSLY RECORDED AT REEL/FRAME (053546/0001) Recorded Jun 23, 2022
From: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS NOTES COLLATERAL AGENT
To: DELL MARKETING L.P. (ON BEHALF OF ITSELF AND AS SUCCESSOR-IN-INTEREST TO CREDANT TECHNOLOGIES, INC.); DELL INTERNATIONAL L.L.C.; DELL PRODUCTS L.P.; DELL USA L.P.; EMC CORPORATION; DELL MARKETING CORPORATION (SUCCESSOR-IN-INTEREST TO FORCE10 NETWORKS, INC. AND WYSE TECHNOLOGY L.L.C.); EMC IP HOLDING COMPANY LLC
Reel/Frame 071642/0001 →
RELEASE OF SECURITY INTEREST IN PATENTS PREVIOUSLY RECORDED AT REEL/FRAME (045455/0001) Recorded May 20, 2022
From: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS NOTES COLLATERAL AGENT
To: DELL MARKETING CORPORATION (SUCCESSOR-IN-INTEREST TO ASAP SOFTWARE EXPRESS, INC.); DELL MARKETING L.P. (ON BEHALF OF ITSELF AND AS SUCCESSOR-IN-INTEREST TO CREDANT TECHNOLOGIES, INC.); DELL USA L.P.; DELL INTERNATIONAL L.L.C.; DELL PRODUCTS L.P.; DELL MARKETING CORPORATION (SUCCESSOR-IN-INTEREST TO FORCE10 NETWORKS, INC. AND WYSE TECHNOLOGY L.L.C.); EMC CORPORATION (ON BEHALF OF ITSELF AND AS SUCCESSOR-IN-INTEREST TO MAGINATICS LLC); EMC IP HOLDING COMPANY LLC (ON BEHALF OF ITSELF AND AS SUCCESSOR-IN-INTEREST TO MOZY, INC.); SCALEIO LLC
Reel/Frame 061753/0001 →
RELEASE OF SECURITY INTEREST IN PATENTS PREVIOUSLY RECORDED AT REEL/FRAME (040136/0001) Recorded Apr 26, 2022
From: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS NOTES COLLATERAL AGENT
To: DELL MARKETING CORPORATION (SUCCESSOR-IN-INTEREST TO ASAP SOFTWARE EXPRESS, INC.); DELL MARKETING L.P. (ON BEHALF OF ITSELF AND AS SUCCESSOR-IN-INTEREST TO CREDANT TECHNOLOGIES, INC.); DELL USA L.P.; DELL INTERNATIONAL L.L.C.; DELL PRODUCTS L.P.; DELL MARKETING CORPORATION (SUCCESSOR-IN-INTEREST TO FORCE10 NETWORKS, INC. AND WYSE TECHNOLOGY L.L.C.); EMC CORPORATION (ON BEHALF OF ITSELF AND AS SUCCESSOR-IN-INTEREST TO MAGINATICS LLC); EMC IP HOLDING COMPANY LLC (ON BEHALF OF ITSELF AND AS SUCCESSOR-IN-INTEREST TO MOZY, INC.); SCALEIO LLC
Reel/Frame 061324/0001 →
RELEASE OF SECURITY INTEREST Recorded Nov 3, 2021
From: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH
To: DELL USA L.P.; ASAP SOFTWARE EXPRESS, INC.; AVENTAIL LLC; CREDANT TECHNOLOGIES, INC.; DELL INTERNATIONAL, L.L.C.; DELL MARKETING L.P.; DELL PRODUCTS L.P.; DELL SOFTWARE INC.; DELL SYSTEMS CORPORATION; EMC CORPORATION; EMC IP HOLDING COMPANY LLC; FORCE10 NETWORKS, INC.; MAGINATICS LLC; MOZY, INC.; SCALEIO LLC; WYSE TECHNOLOGY L.L.C.
Reel/Frame 058216/0001 →
SECURITY AGREEMENT Recorded Apr 22, 2020
From: CREDANT TECHNOLOGIES INC.; DELL INTERNATIONAL L.L.C.; DELL MARKETING L.P.; DELL PRODUCTS L.P.; DELL USA L.P.; EMC CORPORATION; FORCE10 NETWORKS, INC.; WYSE TECHNOLOGY L.L.C.; EMC IP HOLDING COMPANY LLC
To: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A.
Reel/Frame 053546/0001 →
SECURITY AGREEMENT Recorded Mar 21, 2019
From: CREDANT TECHNOLOGIES, INC.; DELL INTERNATIONAL L.L.C.; DELL MARKETING L.P.; DELL PRODUCTS L.P.; DELL USA L.P.; EMC CORPORATION; FORCE10 NETWORKS, INC.; WYSE TECHNOLOGY L.L.C.; EMC IP HOLDING COMPANY LLC
To: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A.
Reel/Frame 049452/0223 →
SECURITY AGREEMENT Recorded Sep 21, 2016
From: ASAP SOFTWARE EXPRESS, INC.; AVENTAIL LLC; CREDANT TECHNOLOGIES, INC.; DELL USA L.P.; DELL INTERNATIONAL L.L.C.; DELL MARKETING L.P.; DELL PRODUCTS L.P.; DELL SOFTWARE INC.; DELL SYSTEMS CORPORATION; EMC CORPORATION; EMC IP HOLDING COMPANY LLC; FORCE10 NETWORKS, INC.; MAGINATICS LLC; MOZY, INC.; SCALEIO LLC; SPANNING CLOUD APPS LLC; WYSE TECHNOLOGY L.L.C.
To: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, AS COLLATERAL AGENT
Reel/Frame 040134/0001 →
SECURITY AGREEMENT Recorded Sep 21, 2016
From: ASAP SOFTWARE EXPRESS, INC.; AVENTAIL LLC; CREDANT TECHNOLOGIES, INC.; DELL USA L.P.; DELL INTERNATIONAL L.L.C.; DELL MARKETING L.P.; DELL PRODUCTS L.P.; DELL SOFTWARE INC.; DELL SYSTEMS CORPORATION; EMC CORPORATION; EMC IP HOLDING COMPANY LLC; FORCE10 NETWORKS, INC.; MAGINATICS LLC; MOZY, INC.; SCALEIO LLC; SPANNING CLOUD APPS LLC; WYSE TECHNOLOGY L.L.C.
To: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS NOTES COLLATERAL AGENT
Reel/Frame 040136/0001 →
RELEASE OF REEL 033625 FRAME 0688 (TL) Recorded Sep 14, 2016
From: BANK OF AMERICA, N.A., AS COLLATERAL AGENT
To: DELL SOFTWARE INC.; DELL PRODUCTS L.P.; COMPELLENT TECHNOLOGIES, INC.; SECUREWORKS, INC.
Reel/Frame 040027/0757 →
RELEASE OF REEL 033625 FRAME 0748 (NOTE) Recorded Sep 14, 2016
From: BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS COLLATERAL AGENT
To: DELL SOFTWARE INC.; DELL PRODUCTS L.P.; COMPELLENT TECHNOLOGIES, INC.; SECUREWORKS, INC.
Reel/Frame 040027/0050 →
RELEASE OF REEL 033625 FRAME 0711 (ABL) Recorded Sep 13, 2016
From: BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT
To: DELL SOFTWARE INC.; DELL PRODUCTS L.P.; COMPELLENT TECHNOLOGIES, INC.; SECUREWORKS, INC.
Reel/Frame 040016/0903 →
SUPPLEMENT TO PATENT SECURITY AGREEMENT (NOTES) Recorded Aug 27, 2014
From: COMPELLENT TECHNOLOGIES, INC.; DELL PRODUCTS L.P.; DELL SOFTWARE INC.; SECUREWORKS, INC.
To: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS NOTES COLLATERAL AGENT
Reel/Frame 033625/0748 →
SUPPLEMENT TO PATENT SECURITY AGREEMENT (ABL) Recorded Aug 27, 2014
From: COMPELLENT TECHNOLOGIES, INC.; DELL PRODUCTS L.P.; DELL SOFTWARE INC.; SECUREWORKS, INC.
To: BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 033625/0711 →
SUPPLEMENT TO PATENT SECURITY AGREEMENT (TERM LOAN) Recorded Aug 27, 2014
From: COMPELLENT TECHNOLOGIES, INC.; DELL PRODUCTS L.P.; DELL SOFTWARE INC.; SECUREWORKS, INC.
To: BANK OF AMERICA, N.A., AS COLLATERAL AGENT
Reel/Frame 033625/0688 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 19, 2014
From: LI, HONGPING
To: DELL PRODUCTS L.P.
Reel/Frame 032945/0174 →